400 Must-Have Words for the TOEFL® will help you improve your score on the TOEFL test.
In particular, this book will build your TOEFL vocabulary for the new Internet-based TOEFL of 2005. This book is designed for ease of use as a self-study guide.
Its chapters were written for easy completion in one sitting—about 25 minutes. 400 Must-Have Words is also highly effective in the TOEFL-prep classroom. Each chapter begins with a list of 10 target words. These words are defined and used in sample sentences.Usage tips are given for many words, as are any commonly used parts of speech related to the target word.
Following these definitions, the words are practiced in three exercises. TOEFL Prep I and TOEFL Prep II give straightforward practice in a variety of easy exercise styles. The last exercise,TOEFL Success, includes a TOEFLstyle reading followed by one or two authentic TOEFL-style questions. Most TOEFL Success readings incorporate all 10 target words, and most also include an additional bonus structure. Each chapter ends with an answer key so you can check your work.As an extra feature, this book includes a special front section called “Six Quick Hints for Success on the TOEFL®. ” These hints give general test-taking advice for TOEFL success.
Try to understand a reading or lecture as a whole. Unlike earlier versions of the TOEFL, the new version tests whether you can see how ideas interact in a longer reading. 2. Take notes. Especially in the listening section, you will need notes to remember what you have heard. Note-taking will also help you concentrate. You can practice by taking notes of news stories, documentaries, or lectures.
3.Study grammar in context, not by itself. Unlike earlier versions of the TOEFL, the new version has no grammar section. Your knowledge of grammar is useful in helping you understand the readings and lectures, not in answering grammar-specific questions. 4. Practice writing essays that express your opinion on a topic. The writing section of the 2005 TOEFL includes questions asking for your opinion on various daily topics.
These are timed. Practice writing under a time limit, shaping your thoughts into a well-rounded essay. 5. Build up your academic vocabulary.Your ability to comprehend reading passages rests largely on your academic vocabulary. Build your vocabulary by reading, making flash cards, and writing sentences using new words in context. A strong vocabulary will help you not only in your reading comprehension, but also in listening, writing, and speaking.
6. Commit your attention to the test. Some of the topics covered in the test may not actually interest you. Still, your focused energy will improve your test score. Agree with yourself not to think about other topics during the test. Force yourself to keep your attention on the tested material.Copyright © 2005 by The McGraw-Hill Companies, Inc.
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This limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in contract, tort or otherwise. DOI: 10. 1036/0071467076 ???????????? Want to learn more? We hope you enjoy this McGraw-Hill eBook! If you’d like more information about this book, its author, or related books and websites, please click here. This book is dedicated to my late father, Richard J. Zwier, an intelligent, unselfish man. And to my dear friend Sepideh Farsai, who developed a keen command of both the vocabulary and idioms of English. This page intentionally left blank.
fertilize v. To supply with nourishment for plants by adding helpful substances to the soil This farm fertilizes tomatoes more than any other crop. Parts of speech fertilizer n, fertilization n 6. ntensify v. To increase in power; to act with increased strength Jacob’s long absence intensified his certainty that he should marry Rose. Parts of speech intensification n, intense adj 7. irrigation n.
The supplying of water to dry land In dry areas of the country, you can see ditches all over the farmland for irrigation. Parts of speech irrigate v 8. obtain v. To gain possession of; to get After a series of difficult interviews, he finally was able to obtain the job. 9. photosynthesis n. The process by which green plants make their own food by combining water, salts, and carbon dioxide in the presence of light.
Oxygen is a by-product of the process of photosynthesis. Parts of speech photosynthesize v 10. precipitation n. Water that falls to the Earth’s surface In the Pacific Northwest, the high level of precipitation ensures rich, green plant life. Food Crops 5 TOEFL Prep I Complete each sentence by filling in the blank with the best word from the list. Change the form of the word if necessary. Use each word only once.
abandoned precipitation cultivation fertilize photosynthesis 1. Through __________, green plants create organic materials with the help of chlorophyll. 2.The coastal city gets half of its __________ during the months of January, February, and March. 3. Farmers use various methods of land __________. 4.
When they heard the hull crack, all but two of the sailors __________ ship. 5. Inexperienced gardeners may not realize how important it is that they __________ their plants. TOEFL Prep II Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column. Write the letter in the blank. 1. obtain 2.
intensify 3. irrigation 4. aggregate 5. adversely (a) (b) (c) (d) (e) weaken separate lose drainage positivelyTOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. In countries like Niger and Mauritania, the cultivation of land has changed little in the past several centuries. Additionally, these countries’ mono-modal rainfall pattern brings precipitation for only three months during the year.
As a result, food production doesn’t nearly meet demand. Bonus Structure— As a result means “therefore,” “for this reason. ” 6 Nature Several agencies and organizations have intensified their efforts to increase the productivity of land in these countries.They have introduced new strains of seed, improved irrigation techniques, and introduced new methods of fertilization and soil management. With ample sunlight for photosynthesis and modern irrigation techniques, sustainable farming techniques should allow farmers to boost aggregate production in order to meet demand. Still, crop revitalization faces an unexpected adversary: institutional incompetence. Where crop specialists have convinced individual farmers to abandon old farming techniques in place of new, they can’t readily obtain the governmental cooperation they need.
The biggest hurdles are political corruption, incompetence, and the absence of a marketing infrastructure. 1. In this passage, the word adversary is closest in meaning to a. b. c. d. friend helper enemy leader 2.
In the last paragraph, the word they refers to a. b. c. d. crop specialists farmers farming techniques adversaries Lesson 1 Food Crops TOEFL Prep I 1. photosynthesis 2. precipitation 3.
cultivation 4. abandoned 5. fertilize TOEFL Prep II 1. c 2. a 3. d 4. b 5.
e TOEFL Success 1. c 2. a LESSON 2 Disaster Target Words 1. anticipate 2. catastrophic 3. collide 4. ruption 5.
famine 6. 7. 8. 9. 10. flood impact persevere plunge unleash Definitions and Samples 1. anticipate v.
To expect; to sense something before it happens By placing sensors in earthquake-prone areas, scientists can anticipate some tremors in time to warn the public. Parts of speech anticipation n, anticipatory adj 2. catastrophic adj. Extremely harmful; causing financial or physical ruin The architect died in a catastrophic elevator accident. Parts of speech catastrophe n, catastrophically adv 3. collide v. To come together with great or violent forceAs usual, their holiday was ruined when their in-laws’ views on politics collided with their own.
Parts of speech erupt v 5. famine n. Severe hunger; a drastic food shortage The potato famine in Ireland in the mid-nineteenth century caused large numbers of Irish people to emigrate to America. . flood n. An overflowing of water; an excessive amount The constant rain and poor drainage system caused a flood in town. The political party sent out a flood of letters criticizing their opponents.
Parts of speech flood v 7. impact n. A strong influence The speech about the importance of education made an impact on me. Usage tips Impact is usually followed by on or of. Parts of speech impact v 8. persevere v. To keep going, despite obstacles or discouragement; to maintain a purpose The hikers persevered despite the bad weather and the icy trail.
Parts of speech persist v, persistent adj 9. plunge v.To go down suddenly; to decrease by a great amount in a short time He jumped off the diving board and plunged into the pool. The value of the company’s stock plunged after its chief executive was arrested. Disaster 9 Usage tips Plunge is often followed by an into phrase. Parts of speech plunge n 10. unleash v.
To release a thing or an emotion When they saw the strange man on their property, they unleashed their dogs. He is from such an unemotional family, he will never learn to unleash his feelings. TOEFL Prep I Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column.Write the letter in the blank. 1. persevere 2. anticipate 3.
famine 4. collide 5. catastrophic (a) (b) (c) (d) (e) to pass by without hitting to give up to not see something coming harmless excess of food TOEFL Prep II Circle the word that best completes each sentence. 1. Residents of Hawaii must accept the possibility of a volcanic (eruption / perseverance). 2. Years after the accident, she was finally able to (anticipate / unleash) her feelings of anger.
3. Houses along the river often face (famine / flooding) during the rainy season. 4. Many people think it is cruel to (collide / plunge) live lobsters into boiling water. . A well-written essay should make some kind of (catastrophe / impact) on its readers. 10 Nature TOEFL Success Read the passage to review the vocabulary you have learned.
Answer the questions that follow. Nature challenges humans in many ways, through disease, weather, and famine. For those living along the coast, one unusual phenomenon capable of catastrophic destruction is the tsunami (pronounced “tsoo-NAH-mee”). A tsunami is a series of waves generated in a body of water by an impulsive disturbance. Earthquakes, landslides, volcanic eruptions, explosions, and even the impact of meteorites can generate tsunamis.Starting at sea, a tsunami slowly approaches land, growing in height and losing energy through bottom friction and turbulence. Still, just like any other water waves, tsunamis unleash tremendous energy as they plunge onto the shore.
They have great erosion potential, stripping beaches of sand, undermining trees, and flooding hundreds of meters inland. They can easily crush cars, homes, vegetation, and anything they collide with. To minimize the devastation of a tsunami, scientists are constantly trying to anticipate them more accurately and more quickly.Because many factors come together to produce a life-threatening Bonus Structure— tsunami, foreseeing them is not easy. Despite this, researchers Despite this in meteorology persevere in studying and predicting tsunami means “even so; regardless. ” behavior. 1.
Which sentence best expresses the essential information of this passage? a. Tsunamis could become a new source of usable energy in the next hundred years. b. Tsunamis do more damage to the land than flooding. c. Tsunamis can have an especially catastrophic impact on coastal communities. d.
Scientists an predict and track tsunamis with a fair degree of accuracy, reducing their potential impact. 2. In the first sentence, why does the author mention weather? a. b. c. d. because tsunamis are caused by bad weather because tsunamis are more destructive than weather phenomena as an example of a destructive natural force as an introduction to the topic of coastal storms Disaster 11 Lesson 2 Disaster TOEFL Prep I 1.
b 2. c 3. e 4. a 5. d TOEFL Prep II 1. eruption 2. unleash 3.
flooding 4. plunge 5. impact TOEFL Success 1. c 2. c LESSON 3 Evolution and Migration Target Words 1. dapt 2. diverse 3.
evolve 4. feature 5. generation 6. 7. 8. 9. 10.
inherent migration physical process survive Definitions and Samples 1. adapt v. To adjust to the circumstances; to make suitable Dinosaurs could not adapt to the warmer temperatures. The teacher adapted the exercises for his more advanced students. Usage tips Adapt is often followed by to. Parts of speech adaptation n, adapter n, adaptable adj 2. diverse n.
Various; showing a lot of differences within a group India is one of the most linguistically diverse countries in the world. Usage tips An -ly adverb (e. g. linguistically) often comes before diverse. Parts of speech diversify v, diversity n, diversification n 3. evolve v. To develop; to come forth Modern-day sharks evolved from their ancestor Eryops, which lived more than 200 million years ago.
Parts of speech feature v 5. eneration n. A group of people born at about the same time As older managers retired, a new generation of leaders took control of the company. Usage tips Before generation, an adjective like new, next, earlier, or older is common. Generation is often followed by of. Parts of speech generational adj 6. inherent adj.
Naturally characteristic; always found within something, because it’s a basic part of that thing No job can be interesting all the time. Boredom is inherent in any kind of work. Usage tips Inherent is often followed by in. Parts of speech inherently adv 7. migration n.Movement from one place to another by a group of people or animals The migration of farm workers from one state to the next depends primarily on the harvest. Usage tips Migration is often followed by to or from.
Parts of speech migrate v, migrant n, migratory adj 8. physical adj. Related to the body; related to materials that can be seen or felt Because of the shape of its throat, an ape does not have the physical ability to speak. 14 Nature The mountains form a physical barrier between the west and the east. Usage tips Physical usually comes before the noun it describes. Parts of speech physically adv 9. process n.
A series of steps leading to a result To get a good job, most people go through a long process of letterwriting and interviews. Usage tips Process is often followed by of plus the -ing form of a verb. Parts of speech proceed v, process v 10. survive v. To continue living (despite some danger or illness) After getting lost in the mountains, Gordon survived by eating wild plants and catching fish. Usage tips Survive is often followed by a phrase with by. Parts of speech survivor n, survival n TOEFL Prep I Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column.
Write the letter in the blank. 1. physical 2. migration 3. adapt 4. inherent 5. survive (a) (b) (c) (d) (e) not an integral part stay the same die staying in one place mental TOEFL Prep II Choose the word from the list that is closest in meaning to the underlined part of each sentence.
Write it in the blank. Evolution and Migration 15 diverse evolved generation process survive _______________1. Various languages are spoken on the Indian subcontinent. _______________2. Making bread involves a sequence of steps that takes about three hours. _______________3.Few sea turtles manage to live through their first year of life.
_______________4. This age group tends to support current educational policies. _______________5. Her thinking about economics has changed slowly in the last several months. TOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. The migration from Asia to North America across the Bering Strait (perhaps by land bridge) was a monumental event in human history.
The process of overspreading the Americas took more than 1,000 years, or 30 generations.This might seem to confirm common sense—that slow travel was inherent in any great migration without wheeled vehicles across unknown terrain. Further thought shows Bonus Structure— that this process was remarkably fast—about 10 north- Further thought south miles per year, on average. The Americas were means “looking deeper; thinking populated at an astounding pace, when one considers more. ” the physical limits of the human body and the physical features of the American continents. Legs of humans can move only so fast under the best of circumstances, and they work even slower over mountain passes or deserts.Populations spread through the diverse regions of the Americas (grasslands, eastern forests, coastal swamps) and needed to adapt to their new environments.
The migrants’ lifestyle had evolved over the years to that of professional nomads ensuring that they would find the resources needed to survive. 16 Nature 1. Which sentence best expresses the essential information in this passage? a. Human migration across the Bering Strait was remarkably slow. b. Physical limitations made migration across the Bering Strait almost impossible. c.
Humans readily adapted to life in the Bering Strait. d.The migration through the Americas was surprisingly fast. 2. In this passage, the word monumental is closest in meaning to a. b. c.
d. disastrous evolving important physical Lesson 3 Evolution and Migration TOEFL Prep I 1. e 2. d 3. b 4. a 5. c TOEFL Prep II 1.
diverse 2. process 3. survive 4. generation 5. evolved TOEFL Success 1. a 2. c LESSON 4 Petroleum Alternatives Target Words 1.
constraint 2. contamination 3. deplete 4. dispose of 5. elementally 6. 7. 8.
9. 10. emission extinction reservoir shrink stable Definitions and Samples 1. constraint n. Something that restricts thought or actionThe constraints of military life kept Eileen from seeing Private Morris more than once a month. Parts of speech constrain v 2. contamination n.
dispose of v. To throw away; to get rid of; to killShe disposed of her unwanted possessions before moving. The tyrant cruelly disposed of all his enemies. Usage tips Dispose of should be learned as a unit. In this meaning, dispose does not occur without of. Parts of speech disposal n, disposable adj 5. elementally adv.
In terms of elements; basically Elementally, coal and diamonds are the same. Parts of speech element n, elemental adj 6. emission n. Sending out from a small space into the general environment; a substance discharged into the air The Environmental Protection Agency regulates the emission of pollutants into the air.Usage tips Emission is usually followed by an of phrase. Parts of speech emit v 7. extinction n.
Complete disappearance; the end of existence Human beings have caused the extinction of many other species. Usage tips Extinction implies an absolute end; an extinct thing cannot be brought back into existence. Parts of speech extinct adj 8. reservoir n. A place where a liquid is collected and stored Cult members threatened to poison the town’s water reservoir. Parts of speech reserve v 9. shrink v.
To become reduced in size, amount, or value If you dry your clothing on the “high heat” setting, they may shrink.Parts of speech shrinkage n, shrinkable adj Petroleum Alternatives 10. stable adj. Firm and dependable; showing little change He fell because the ladder wasn’t stable. 19 Parts of speech stability n, stably adv TOEFL Prep I Find the word that is closest in meaning to the opposite of each word in the left-hand column. Write the letter in the blank. 1.
stable 2. contamination 3. extinct 4. dispose of 5. shrink (a) (b) (c) (d) (e) keep expand unsteady existing purity TOEFL Prep II Circle the word that best completes each sentence. 1. The (constraints / contamination) of being in prison made her hate society even more.
2.A recognition that the Earth is round was one of the (elemental / shrunken) advances in thought during the time period. 3. Mother Teresa, who helped the poorest of the poor, had a great (disposal / reservoir) of love within her spirit. 4. Automobiles are responsible for some (emissions / extinction) of greenhouse gases. 5.
By the end of the storm, the hikers had (depleted / reserved) even their emergency stores. TOEFL Success Read the passage to review the vocabulary you have learned. Answer the question that follows. Human consumption of fossil fuels is expected to fully deplete the Earth’s crude oil reserves by the year 2060.As underground reservoirs of oil continue to shrink, we have no choice but to find alternatives. One promising source, with much cleaner emissions, is called bio-diesel. Bio- Bonus Structure— One promising source signals the point of this paragraph.
20 Nature diesel is often made from soybean oil, although it can be made from any vegetable oil that is not elementally different from soy. Bio-diesel can even be made from used cooking oils that homes or restaurants would otherwise dispose of. Bio-diesel can be used without constraint in any vehicle that runs on diesel—no modifications are needed.Presently, diesel engines can take up to 20 percent soy in their soy-diesel blend. As the need for bio-diesel increases and the technology improves, we may soon witness the extinction of the fossil-fueled vehicle. This is good news for the planet, as bio-diesel is a more stable source of energy than petroleum, and it reduces contamination of our air and water. An introductory sentence for a brief summary of the passage is provided below.
Complete the summary by selecting the three answer choices that express the most important ideas in the passage. In each blank, write the letter of one of your choices.Bio-diesel is a promising alternative to fossil fuels. • • • a. Humans have shown little self-restraint in their consumption of fossil fuels. b. Underground reservoirs of oil will soon be depleted.
c. Bio-diesel burns cleaner than fossil fuels. d. Bio-diesel comes from a more stable source than petroleum. e. Restaurants can save disposal fees on used cooking oil. Lesson 4 Petroleum Alternatives TOEFL Prep I 1.
c 2. e 3. d 4. a 5. b TOEFL Prep II 1. constraint 2. elemental 3.
arbitrary 3. denominator 4. exponentially 5. infinitesimal 6. 7. 8. 9.
10. maximize parallel proportion rate sequence Definitions and Samples 1. adjust v. To change; to get accustomed to something Travelers are advised to adjust their watches before arriving in the new time zone. Parts of speech adjustment n, adjustable adj 2. arbitrary adj. Chosen simply by whim or chance, not for any specific reason The decision to build a school in Blackberry Township was arbitrary, without any thought to future housing patterns.
exponentially adv. At a very fast rate In Turkey, the value of the lira has decreased exponentially in the last several decades.Usage tips Exponentially is taken from mathematics, where an exponent is a number indicating how many times something is multiplied by itself. For example, 43 contains the exponent “3,” indicating 4 ? 4 ? 4. Parts of speech exponent n, exponential adj 5. infinitesimal adj. Immeasurably small The number of contaminants in the water was infinitesimal, so the water was safe to drink.
Parts of speech infinitesimally adv 6. maximize v. To increase or make as great as possible A coach helps each athlete maximize his or her potential. Parts of speech maximum n, maximum adj 7. parallel adj. Being an equal distance apart everywhereThe street where I live runs parallel to the main road through town. Usage tips Parallel is often followed by to.
Parts of speech parallel n, parallel adv 8. proportion n. A part in relation to the whole The average employee spends a large proportion of each workday answering e-mails. Usage tips Proportion is often followed by of. Parts of speech proportionate adj, proportionally adv 9. rate n. The cost per unit of a good or service; the motion or change that happens in a certain time.
Postal rates in Japan are among the highest in the world. Time Efficiency Some grasses grow at the rate of one inch per day. 5 Parts of speech rate v, rating n 10. sequence v. To organize or arrange in succession Volunteers have been asked to sequence the files and organize the boxes. Parts of speech sequence n, sequentially adv TOEFL Prep I Complete each sentence by filling in the blank with the best word from the list. Change the form of the word if necessary.
Use each word only once. adjust arbitrary denominator infinitesimal rate 1. Students felt that the exam was unfair and the grading system was rather __________. 2. The __________ of increase in prices made it difficult for people to afford basic goods. 3.Politicians promised great changes in the coming year, but any improvement in people’s lives was __________.
4. She quickly overcame her culture shock and found it easy to __________ to the new country. 5. You can add two fractions that have the same __________. TOEFL Prep II Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column. Write the letter in the blank. 1.
arbitrary 2. maximize 3. sequence 4. infinitesimal 5. parallel (a) (b) (c) (d) (e) mix up intersecting minimize huge planned out 26 Science TOEFL Success Read the passage to review the vocabulary you ave learned. Answer the questions that follow. Time is, as we all know, money.
Such valuation of time leads people to extreme efforts to maximize their use of time. Some people obsess over knowing the exact time. They buy clocks and watches that automatically adjust themselves over the Internet or by radio Bonus Structure— As we all know waves. These measurements allow them infinitesimal accuracy is a writer’s device in dealing with time. Regardless of how one tracks time, most for appealing to people share a common goal: They want to use time common knowledge. effectively.Since about 1982, this efficiency has increased exponentially each year, thanks to computers and their ability to multitask.
In multitasking, a computer executes several different tasks in parallel. Rather than being set arbitrarily, each task is given a priority in the computer’s operating system, and time is spent in proportion to the priority of the task. The computer executes different sequences of tasks at different clock cycles, thereby increasing the rate of output from a process. 1. Why does the author mention computer multitasking in this article? a. b. c.
d. ecause it is new because it measures time better than any clock because it helps people to arrange their activities sequentially because it is a good example of the efficient use of time 2. The underlined word sequences in the passage is closest in meaning to a. b. c. d. styles lengths orderings difficulty levels Lesson 5 Time Efficiency TOEFL Prep I 1.
arbitrary 2. rate 3. infinitesimal 4. adjust 5. denominator TOEFL Prep II 1. e 2. c 3.
a 4. d 5. b TOEFL Success 1. d 2. c LESSON 6 Ancient Life Target Words 1. accuracy 2. adjacent 3.
compress 4. feasibly 5. gut 6. 7. 8. 9. 10.
ntegrally overlap retain seep structure Definitions and Samples 1. accuracy n. Precision; exactness The research department checks all our articles for accuracy of facts before we print them. Usage tips Accuracy is often followed by of. Parts of speech accurate adj, accurately adv 2. adjacent adj. Next to Even though the villages are adjacent to each other, their residents speak different languages.
feasibly adv. Practically; in a way that can work Scientists can’t feasibly bring energy from deep ocean currents to where it is needed—on land. Parts of speech feasibility n, feasible adj 5. gut v. To empty or hollow out In order to remodel the house, we must first gut it and throw away all the old fixtures. Usage tips Gut also means “the stomach of an animal”; this verb makes an image, that the inside of a building is like the inside of an animal.Parts of speech gut n, gutted adj 6.
integrally adv. In a whole or complete manner Writing and spelling are taught integrally as part of the reading program. Parts of speech integrate v, integrity n, integral n, integral adj 7. overlap v. To lie over part of something; to have elements in common One of the two assistants will likely get fired, since most of their duties in the office overlap. Parts of speech overlap n 8. retain v.
To keep or hold The rain fell so heavily that the banks of the river could not retain all the water. Parts of speech retainer n, retention n 9. seep v.To pass slowly for a long time, as a liquid or gas might As the containers rusted, the toxic waste seeped into the ground. Usage tips Seep is often followed by into or through. Ancient Life 10. structure n.
Something constructed, such as a building 29 Most companies have a social structure that can’t be understood by outsiders. Parts of speech structure v, structural adj, structurally adv TOEFL Prep I Complete each sentence by filling in the blank with the best word from the list. Change the form of the word if necessary. Use each word only once. accuracy adjacent feasibly integrally structure 1.She had no idea how they could __________ take a big vacation and remodel their house in the same year. 2.
Daily meditation is used __________ with medication and massage as part of the recovery plan. 3. The rival politicians were raised in __________ counties. 4. If you build a __________ next to this river, you must be sure it is safe against floods. 5. Once he ran for public office, he understood the importance of checking public statements for __________.
TOEFL Prep II Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column. Write the letter in the blank. . seep 2. gut 3. retain 4. compress 5.
overlap (a) (b) (c) (d) (e) fill separate stay contained loosen throw away TOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. 30 Science Organic products from ancient life are an integral part of the Earth’s resources, offering scientists a more accurate picture of ancient life-forms. One key to ancient life comes in the form of petrified matter. Petrifaction is a process that slowly turns the remains of a living object into stone. In this process, minerals seep into a mass of organic matter.After the organic matter has been replaced, a mineral version of the living object is left.
Petrifaction often occurs in trees that are found adjacent to rivers, floodable areas, and volcanoes, which provide the mud or ash that initially covers the organic matter. Some pieces of petrified wood retain the original cellular structure of the wood and the grain can be easily Bonus Structure— seen. Today, it is feasible to petrify wood in a simple In this context, laboratory process. today means “at present; at this time Fossils are another way that ancient life is preserved. in history. Most fossils include an animal’s hard parts, such as teeth and bones. One type of fossil, called a trace fossil, may also include eggs, tooth marks, contents of the guts, and fossil excrement.
Some products from ancient life offer us more than scientific knowledge. One such product is coal, a solid fuel of plant origin. It develops over millions of years, during which swamp vegetation is submerged in water, depleted of oxygen, and covered by layers and layers of sand and mud. These overlapping layers settle with the Earth’s movements and are compressed over time. 1. Which sentence best expresses the essential information of this passage? . Preserved life-forms, including petrified matter and fossils, teach us about ancient life.
b. The primary function for preserved life-forms is scientific discovery. c. Scientists try to replicate natural processes that preserve ancient life-forms. d. Ancient organic matter provides the most concentrated forms of energy known to humans. 2.
In the passage, the words submerged in are closest in meaning to a. b. c. d. made wet completely covered adjacent to depleted of Ancient Life 31 Lesson 6 Ancient Life TOEFL Prep I 1. feasibly 2. integrally 3.
adjacent 4. structure 5. accuracy TOEFL Prep II 1. c 2. a 3. e 4. d 5.
TOEFL Success 1. a 2. b LESSON 7 Computers Target Words 1. circulate 2. corrode 3. derive 4. detection 5.
expeditiously 6. 7. 8. 9. 10. implement innovative installation maintenance simulation Definitions and Samples 1. circulate v.
To move throughout an area or group; to move along a somewhat circular route The gossip circulated quickly through the small town. Blood circulates more quickly during physical exercise. Usage tips Circulate is often followed by through. Parts of speech circulation n 2. corrode v. To be slowly weakened by chemical reactions Sitting in salt water, the old coins corroded and became very easy to break.Usage tips A familiar kind of corrosion produces rust, the reddish coating on iron or steel that has been exposed to air and water.
detection n. Discovering something that cannot easily be found With new medical technology, the detection of cancer is much easier nowadays.Usage tips Detection is often followed by an of phrase. Parts of speech detect v, detectable adj 5. expeditiously adv. Quickly and efficiently Using carrier pigeons, the military commanders exchanged messages expeditiously. Parts of speech expedite v, expedition n, expeditious adj 6.
implement v. To make use of; to carry out Not until after the new software was installed could we implement the new filing system. Parts of speech implement n, implementation n 7. innovative adj. Ahead of the times; novel The innovative use of props and lighting drew many favorable comments. Parts of speech innovation n 8. installation n.
Setting something into position for use Installation of the new software takes only four minutes. Parts of speech install v 9. maintenance n. The act of keeping something in good condition The only problem with living in such a big house is that it requires a lot of maintenance. Parts of speech maintain v 34 Science 10. simulation n. An imitation or representation To test car safety, automobile makers study crash simulations.
Parts of speech simulate v, simulator n TOEFL Prep I Circle the most likely meaning of the word part that is shared within each set of words. 1. circulate, circumnavigate, circuitThe root circ / circum probably means a. b. c. d. around broken fair straight 2.
innovative, novel, renovate The root nov probably means a. b. c. d. clear old new sweet 3. installation, implement, imprison The prefix in-/im- probably means a. b.
c. d. aside behind in out TOEFL Prep II Circle the word that best completes each sentence. 1. Please make sure this information (circulates / derives) throughout the office quickly. 2. The (installation / simulation) of the new telephones took three days.
3. In order to stay on schedule, we need to complete this project as (expeditiously / innovatively) as possible. Computers 35 . The smuggler moved cautiously through the airport to avoid (detection / maintenance). 5. Years of neglect had caused the building’s water pipes to (corrode / implement). TOEFL Success Read the passage to review the vocabulary you have learned.
Answer the questions that follow. As dependence on computers increases, so does the need for technical support. From installation of software to detection of viruses, computers require constant vigilance. Most larger companies find it most expeditious to maintain in-house computer staff. Many smaller companies, however, can’t fund their own full-time, in-house technical help.Instead, many of them assign the task of computer maintenance to a current employee who may not have any formal training. Rather, these “computer buffs” have derived their skills through practice and self-training.
These selfappointed tech specialists, however, often cannot solve bigger problems. What’s more, they may see their office relations corrode when they are swamped with basic user questions that they simply don’t have time to address. For these reasons, many small companies choose to employ a freelance technical assistant who circulates among clients on an as-needed basis.With their professional training, these consultants may propose innovative solutions to users’ unique needs, which could vary from tracking inventory to simulating mechanized processes. They can implement new programs, train personnel, and escape the workplace before being asked,“How can I cut this file and paste it somewhere else? ” 1. Which sentence best expresses the essential information of this passage? a. Larger companies are better off using freelance technical consultants.
b. Computer maintenance and troubleshooting cuts into employee productivity. c.Self-trained technical support personnel are often as effective as trained professionals. d. Smaller companies may benefit from hiring occasional technical support. 36 Science 2.
The article implies that the question How do I cut and paste a file? is a. b. c. d. too basic to require professional attention a good question to give to in-house tech support appropriate for a freelancer to address a good topic for a training program Lesson 7 Computers TOEFL Prep I 1. a 2. c 3.
c TOEFL Prep II 1. circulate 2. installation 3. expeditiously 4. detection 5. corrode TOEFL Success 1. d 2.
a LESSON 8 Energy Target Words 1. combustion 2. component 3. onvey 4. discretely 5. nucleus 6. 7.
8. 9. 10. permeate rotate solar source trigger Definitions and Samples 1. combustion n. The process of burning When air quality is poor, combustion of materials in a fireplace is prohibited. Usage tips Combustion is often followed by of.
Parts of speech combust v, combustible adj 2. component n. One part of a system or whole Their home theater system has a number of separate components. Usage tips Component is often followed or preceded by of. 3. convey v. To transport from one place to another; to transmit or make known A messenger conveyed the prince’s letter to the commander of the army.
nucleus n. A central or essential part around which other parts are gathered; a core The nucleus of many European cities is the town square. Usage tips Nucleus is often followed by of. Parts of speech nuclear adj 6. permeate v.To spread or flow throughout; to pass through or penetrate The smell of cooking permeated the entire apartment building. Parts of speech permeation n 7.
rotate v. To turn around; to take turns in sequence The planet rotates on its axis once every 14 Earth days. The children rotate classroom responsibilities on a weekly basis. Parts of speech rotation n 8. solar adj. Of, or relating to, the sun The ancient society kept time with a solar calendar. 9.
source n. The point of origin or creation The reporter was unable to identify the source of the information for his story. Parts of speech source v Energy 10. trigger v.To set off or initiate 39 I was certain any mention of politics would trigger a big argument. Parts of speech trigger n TOEFL Prep I Complete each sentence by filling in the blank with the best word from the list. Change the form of the word if necessary.
Use each word only once. combustion convey permeate source trigger 1. It is often difficult to __________ the meaning of a poem to a large audience. 2. The __________ of the gossip was someone inside this office. 3. Her bad mood that day __________ the atmosphere in the laboratory.
4. The internal __________ engine revolutionized the way automobiles run. 5. A igarette __________ the explosion. TOEFL Prep II Find the word or phrase that is closest in meaning to each word in the left-hand column. Write the letter in the blank. 1.
rotate 2. solar 3. component 4. discretely 5. nucleus (a) (b) (c) (d) (e) separately, as an individual part spin on an axis sun center part TOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. Most of the electricity in the United States is produced in steam turbines.
There are many discrete steps in this process. In a steam turbine, 40 Science combustion of coal, petroleum, or natural gas heats water to make steam.The steam rotates a shaft that is connected to a generator that produces electricity. Finally, that electricity is converted by a transformer and conveyed from the turbine to its place of use. Many sources can provide energy to heat the water in a steam turbine. Coal is primary, producing 51 percent of the country’s electricity. Another common way to heat water for steam turbines is through nuclear power.
In nuclear fission, atoms of uranium fuel are hit by neutrons, triggering a continuous chain of fission that releases heat. In 2001, nuclear power generated 21 percent of the electricity in the United States.Solar power produces less than 1 percent of the United States’ electricity needs, because it is not Bonus Structure— regularly available and harnessing it is more expensive than In this context, still using fossil fuels. Dependence on electricity permeates daily means “even so; life in the United States. Still, few people are aware of the despite this. ” many components of electricity production. 1.
What does the author say about solar power? a. It produces more electricity than any other source. b. It is a relatively small source of energy for heating water in steam turbines. c. Electricity producers are rying to use it more regularly. d.
Researchers are trying to make it cheaper to use. 2. In the passage, the word transformer probably refers to a a. b. c. d. truck generator that produces electricity type of turbine device that changes electric currents Lesson 8 Energy TOEFL Prep I 1.
convey 2. source 3. permeated 4. combustion 5. triggered TOEFL Prep II 1. b 2. c 3.
LESSON 9 Memory Target Words 1. acquisition 2. anomaly 3. consciously 4. egrade 5. gap 6. 7.
8. 9. 10. indisputable intervene intuitively recede retrieve Definitions and Samples 1. acquisition n. The act of taking possession of something Our recent acquisition of over 2,000 books makes ours the biggest library in the region. Usage tips Acquisition is often followed by of.
Parts of speech acquire v 2. anomaly n. Something unusual White tigers get their beautiful coloring from a genetic anomaly. 3. consciously adv. With awareness of one’s actions He may have hurt her feelings, but he never would have done so consciously. Parts of speech consciousness n, conscious adjCopyright © 2005 by The McGraw-Hill Companies, Inc.
6. indisputable adj. Beyond doubt; unquestionable The members of the jury found her guilty because they found the facts of the case indisputable. Parts of speech indisputably adv 7. intervene v.To come between A good mediator intervenes only as much as necessary to settle a dispute between other parties. Parts of speech intervention n 8.
intuitively adv. By means of a natural sense about things that are hard to observe Many mothers know intuitively when something is wrong with their children. Parts of speech intuition n, intuitive adj 9. recede v. To move back or away from After the age of 30, his hairline began to recede further back from his forehead. Parts of speech recession n, recessive adj 10. retrieve v.
To bring or get back Most dogs can be trained to retrieve objects that their owners have thrown.Parts of speech retriever n, retrievable adj Memory 45 TOEFL Prep I Find the word or phrase that is closest in meaning to the opposite of each word in the left-hand column. Write the letter in the blank. 1. degrade 2. anomaly 3. recede 4.
intervene 5. indisputable (a) (b) (c) (d) (e) stay out of a dispute improve questionable the norm come forward TOEFL Prep II Circle the word that best completes each sentence. 1. A huge (anomaly / gap) between the wealthy and the working class often leads to social unrest. 2. The new computers enable us to (intervene / retrieve) information more quickly. .
Although she wasn’t qualified for the job, she (indisputably / intuitively) felt that she should apply. 4. When he joined the military, he did not expect the officers to (degrade / recede) him. 5. The art in the foyer was an important (acquisition / consciousness) for the museum. TOEFL Success Read the passage to review the vocabulary you have learned. Answer the question that follows.
Like other functions of the human mind, perception and memory are imperfect. When we tell a story about something that we witnessed, we may intuitively believe that our recollection is accurate.However, several factors bias our memories of events. To study this anomaly, let us look at the three steps of memory creation: acquisition of memory, storing of memory, and retrieval. At every stage of memory formation, distortion can occur. At the first stage, acquisition of memory, events are perceived and bits of information are prepared for storage in the brain. However, it is impossible for us to remember every single thing we observe.
Through processes that are both conscious and unconscious, people determine which details they will focus on. 46 Mind and BodyIn its second stage, storage, memories can become further distorted. Over time, our memories degrade, as we forget portions of events. To compensate, we may even creatively fill in the gap created by the recession of long-term memory. Additionally, an individual’s memory can be altered during the storage stage by intervening occurrences, which can be subconsciously combined with previously stored Bonus Structure— memories. Last but not least, we search our memory to locate In sum means “to information. During recall, emotion also seems to play a part summarize; to give in memory distortion.
In sum, our memories may not be the a short version of indisputable source of information that we would like them what has been stated. ” to be. An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the three answer choices that express the most important ideas in the passage. In each blank, write the letter of one of your choices. Memory provides an imperfect record of events. • • • a.
b. c. d. e. f. People purposefully present a slanted version of events. Memories can be altered at any point in memory creation.
People naturally cannot recall everything they observe.Memories are an indisputable source of fact. Time and emotion contribute to memory degradation. Past occurrences often displace current memories. Lesson 9 Memory TOEFL Prep I 1. b 2. d 3.
e 4. a 5. c TOEFL Prep II 1. gap 2. retrieve 3. intuitively 4. degrade 5.
acquisition TOEFL Success b, c, e LESSON 10 Spirituality Target Words 1. agnostic 2. animism 3. atheist 4. be inclined to 5. contemplate 6. 7.
8. 9. 10. deify ecclesiastical exalt pious sacrifice Definitions and Samples 1. agnostic adj. Believing that humans cannot know whether there is a god His devoutly Christian parents had problems with his agnostic beliefs.Parts of speech agnostic n, agnosticism n 2.
48 Mind and Body 4. be inclined to v.To favor an opinion or a course of action He couldn’t say which candidate he favored, but he had always been inclined to vote Republican. Parts of speech incline n, inclination n 5. contemplate v. To consider thoughtfully If you contemplate each step for so long, we will never complete this project on time. Parts of speech contemplation n, contemplative adj 6.
deify v. To worship as a god When people deify the leader of their country, the leader is able to abuse power more easily. Parts of speech deity n 7. ecclesiastical adj. Relating to a church He was looking specifically for a university where he could study ecclesiastical history.Parts of speech ecclesiastic n, ecclesiastically adv 8. exalt v.
To praise or honor He would often exalt the virtues of his new wife. Parts of speech exaltation n 9. pious adj. Having or exhibiting religious reverence Sometimes she was so pious that the rest of us felt like heathens. Parts of speech piousness n, piety n, piously adv 10. sacrifice v. Anything offered to a deity as a religious thanksgiving; giving up something in order to have something more valuable later on Every harvest time, the Fadeloni people sacrificed vegetables to their gods as a show of thanks.
Spirituality 49In order to succeed in his career, he had to sacrifice his private life and his leisure time. Parts of speech sacrifice n, sacrificial adj, sacrificially adv TOEFL Prep I Complete each sentence by filling in the blank with the best word or phrase from the list. Change the form of the word if necessary. Use each word or phrase only once. be inclined to contemplate deify exalted sacrifice 1. Traditionally, the Camerian society __________ its leaders, considering them to be sent from the land of the gods. 2.
To do well in his university courses, he had to __________ a lot of his personal time. 3.The generation of American leaders known as “the Founders” are __________ by many scholars for their wisdom and courage. 4. She knew she would always __________ agree with what her mother said, so she struggled to remain unbiased. 5. The human resources department __________ whether they should let Mary go.
TOEFL Prep II Circle the likely meaning of the word part that is shared within each set of words. 1. animism, animal, animation The root anima probably means a. b. c. d. color death many life 50 Mind and Body 2.
atheistic, amoral, apathetic The prefix a probably means a. b. c. d. not loving excessive surelyTOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. In Russia, several religions coexist, including Christianity, Judaism, Islam, and animism.
The most common religion is Christianity, and most Christians are members of the Russian Orthodox Church. The Church has existed for over 1,000 years, surviving even the official atheism of the Soviet era and the agnosticism that may have been even more prominent at the time. During the communist years, many Russians who practiced Orthodoxy sacrificed career and educational opportunities.The tenacity of Russian Orthodoxy may explain why even nonreligious Russians are inclined to call themselves Russian Orthodox. That same staying power drives the Church today, which is run by Aleksey II of Moscow. Born Aleksey Mikhailovich Ridiger, the future patriarch was from a very pious family. As a boy, Aleksey was often taken by his parents on their annual pilgrimages, when he most certainly began contemplation of Bonus Structure— the religious way of life he was to choose.
As patriarch, Aleksey Here As patriarch is exalted in the Church governance, but he is not deified. means “while Aleksey has published articles on Church history and orking in the peacemaking in both the ecclesiastical and secular press, position of church leader. ” broadening the Church’s image both in Russia and abroad. 1. Which sentence best expresses the essential information of this passage? a. b. c.
d. The Russian Orthodox Church was banned under Soviet control. Few Russians believe in a god. Aleksey II has updated the church’s image. The Russian Orthodox Church has a long history of strong membership in Russia. Spirituality 2. According to the passage, Aleksey II of Moscow is a.
b. c. d. a god a high church official a secular leader an atheist 51Lesson 10 Spirituality TOEFL Prep I 1. deifies 2. sacrifice 3. exalted 4.
be inclined to 5. contemplated TOEFL Prep II 1. d 2. a TOEFL Success 1. d 2. b LESSON 11 Illness Target Words 1. aggravate 2.
decrepit 3. disease 4. fatally 5. forensics 6. 7. 8. 9.
10. persist prognosis terminal vein wound Definitions and Samples 1. aggravate v. To make worse; to anger or intensify Running will aggravate your sore knees. Parts of speech aggravation n 2. decrepit adj. Weakened or worn out because of age, illness, or excessive use The once-beautiful building was now dirty, decrepit, and roofless.
3. disease n.An unhealthful condition caused by an infection or a longterm physical problem Thanks to developments in medicine, many once-fatal diseases can now be cured. 4. fatally adv. Causing death or disaster The soldier was fatally wounded in the battle. Parts of speech fatality n, fatal adj Copyright © 2005 by The McGraw-Hill Companies, Inc.
Lola persisted in her efforts to become a lawyer. Parts of speech persistence n, persistent adj 7. prognosis n. An educated guess of how something will develop, especially a disease The room fell silent when the doctor gave Senator Grebe a grim prognosis of months of treatment. 8. terminal adj. Located at an end; approaching death The cancer ward at the hospital held both terminal and recovering patients.
Parts of speech terminate v, terminally adv 9. vein n. Any of the tubes that form a branching system, especially those hat carry blood to the heart She became fascinated with human anatomy, especially when she learned how veins transport oxygen. 10. wound v. To inflict an injury on Sometimes he didn’t realize his sharp humor could wound as well as entertain. Parts of speech wound n TOEFL Prep I Choose the word from the list that is closest in meaning to the underlined part of each sentence.
Write it in the blank. disease fatal persist prognosis wound 54 Mind and Body 1. He sustained a serious injury in the war, so he was sent home immediately. 2. Her sickness was so rare, doctors weren’t certain how to treat it. . His motto was to keep trying, no matter what happened.
4. The medical staff could not know for sure whether the treatment would work, but they made a confident prediction that the patient would recover. 5. The airplane crash was tragic, killing many people immediately and inflicting injuries on others that would eventually prove deadly. TOEFL Prep II Next to each definition, write the word that most closely fits it. aggravate decrepit forensics terminal vein 1. the science involved in solving crimes 2.
a vessel for carrying blood 3. to make worse 4. unable to be cured 5. in very bad conditionTOEFL Success Read the passage to review the vocabulary you have learned. Answer the questions that follow. The man was decrepit. With high blood pressure, cancer, and liver disease, he aggravated his situation by smoking.
His prognosis was death. His advanced lung cancer was terminal, and his family members knew that he would pass away soon. So no one was surprised to find him dead on that sharp winter Thursday, no one, that is, except one sharp-eyed detective, Illness 55 who noticed the bedroom window ajar on the morning of the old man’s death. Would a fatally ill person be likely to sleep with the window open on a freezing cold night?This question occupied forensic specialists from the medical examiner’s office. There, an autopsy revealed an unlikely wound on the victim’s thigh. Such a wound could easily have been inflicted by someone administering medicine . .
. or poison. From there, the poison could travel through the veins, shutting down vital organs and causing death within seconds. Indeed, the death turned out to be murder in the first Bonus Structure— degree. Criminal investigators persisted in their questioning Indeed indicates of friends and family, only later finding the motive: money. that an idea in an earlier paragraph Two distant relatives who stood