托福考试易错题(2019/3/14) |
第1题:Because the low latitudes of theEarth, the areas near the equator, receive more heat Than the latitudes near the poles, and because the nature of heat is to expand and move, Heat is transported from the tropics to the middle and high latitudes. Some of this heat isMoved by winds and some by ocean currents, and some gets stored in the atmosphere in(5) the form of latent heat. The term "latent heat" refers to the energy that has to be used to Convert liquid water to water vapor. We know that if we warm a pan of water on a stove, it will evaporate, or turn into vapor, faster than if it is allowed to sit at room temperature. We also know that if we hang wet clothes outside in the summertime they will dry faster than in winter, when temperatures are colder. The energy used in both cases to change (10) liquid water to water vapor is supplied by heat―supplied by the stove in the first case and by the Sun in the latter case. This energy is not lost. It is stored in water vapor in the atmosphere as latent heat.Eventually, the water stored as vapor in the atmosphere will condense to liquid again, and the energy will be released to the atmosphere. In the atmosphere, a large portion of the Sun’’s incoming energy is used to evaporate (15) Water, primarily in the tropical oceans. Scientists have tried to quantify this proportion of the Sun’’s energy.By analyzing temperature, water vapor, and wind data around the globe, they have estimated the quantity to be about 90 watts per square meter, or nearly 30 percent of the Sun’’s energy. Once this latent heat is stored within the atmosphere, it can be transported, primarily to higher latitudes, by prevailing, large-scale winds. Or it (20) can be transported vertically to higher levels in the atmosphere, where it forms clouds and subsequent storms, which then release the energy back to the atmosphere.The word "it" in line 18 refers to A、square meter B.the Sun’’s energy C、latent heat D.the atmosphere |
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第2题:{{B}}Set 6Biology Lecture{{/B}}
B.His work became a touchstone. C.He cared about the troubled issues of southernAmericA、 D.He felt sympathy for the poor in southernAmericA、 | |
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第3题:Reading 5 "Speech and Writing" It is a widely held misconception that writing is more perfect than speech. To many people, writing somehow seems more correct and more stable, whereas speech can be careless, corrupted, and susceptible to change. Some people even go so far as to identify language with writing and to regard speech as a secondary form of language used imperfectly to approximate the ideals of the written language. → One of the basic assumptions of modern linguistics, however, is that speech is primary and writing is secondary. The most immediate manifestation of language is speech and not writing. Writing is simply the representation of speech in another physical medium. Spoken language encodes thought into a physically transmittable form, while writing, in turn, encodes spoken language into a physically preservable form. Writing is a two-stage process.All units of writing, whether letters or characters, are based on units of speech, i.e., words, sounds, or syllables. When linguists study language, they take the spoken language as their best source of data and their object of description (except in instances of languages like Latin for which there are no longer any speakers). There are several reasons for maintaining that speech is primary and writing is secondary. ![]() ![]() ![]() → Second, writing does not exist everywhere that spoken language exists. This seems hard to imagine in our highly literate society, but the fact is that there are still many communities in the world where a written form of language is not used, and even in those cultures using a writing system, there are individuals who fail to learn the written form of their language. In fact, the majority of theEarth’s inhabitants are illiterate, though quite capable of spoken communication. However, no society uses only a written language with no spoken form. Third, writing must be taught, whereas spoken language is acquired automatically.All children, except children with serious learning disabilities, naturally learn to speak the language of the community in which they are brought up. They acquire the basics of their native language before they enter school, and even if they never attend school, they become fully competent speakers. Writing systems vary in complexity, but regardless of their level of sophistication, they must all be taught. Finally, neurolinguistic evidence (studies of the brain in action during language use) demonstrates that the processing and production of written language is overlaid on the spoken language centers in the brain. Spoken language involves several distinct areas of the brain; writing uses these areas and others as well. → So what gives rise to the misconception that writing is more perfect than speech There are several reasons. For one thing, the product of writing is usually more aptly worded and better organized, containing fewer errors, hesitations, and incomplete sentences than are found in speech. This perfection of writing can be explained by the fact that writing is the result of deliberation, correction, and revision, while speech is the spontaneous and simultaneous formulation of ideas; writing is therefore less subject to the constraint of time than speech is. In addition, writing is ultimately associated with education and edu |
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第4题: A、Messenger from the Past His people said good-bye and watched him walk off toward the mountains. They had little reason to fear for his safety: the man was well dressed in insulated clothing and equipped with tools needed to survive theAlpine climate. However, as weeks passed without his return, they must have grown worried, then anxious, and finally resigneD、After many years everyone who knew him had died, and a note even a memory of the man remaineD、 Then, on an improbably distant day, he came down from the mountain. Things had changed a bit: it wasn’t theBronzeAge anymore, and he was a celebrity. When a melting glacier released its hold on a 4,000-year-old corpse in September, it was quite rightly called one of the most important archeological finds of the century.Discovered by a German couple hiking at 10,500 feet in the Italian Tyrol near theAustrian border, the partially freeze-dried body still wore remnants of leather garments and boots that had been stuffed with straw for insulation. The hikers alerted scientists from the University of Innsbruck inAustria, whose more complete examination revealed that the man was tattooed on his back and behind his knee.At his side was a bronze ax of a type typical in southern centralEurope around 2000BC、On his expedition perhaps to hunt or to search for metal ore--he had also carried an all-purpose stone knife, a wooden backpack, a bow and a quiver, a small bag containing a flint lighter and kindling, and an arrow repair kit in a leather pouch. Such everyday gear gives an unprecedented perspective on life in earlyBronzeAgeEurope. "The most exciting thing is that we genuinely appear to be looking at a man who had some kind of accident in the course of a perfectly ordinary trip," says archeologist Ian Kinnes of theBritish Museum. "These are not artifacts placed in a grave, but the fellow’s own possessions. " Unlike theEgyptians and Mesopotamians of the time, who had more advanced civilizations with cities and central authority, the Ice Man and his countrymen lived in a society built around small, stable villages. He probably spoke in a tongue ancestral to currentEuropean languages. Furthermore, though he was a member of a farming culture, he may well have been hunting when he died, to add meat to his family’s diet. X-rays of the quiver showed that it contained 14 arrows. While his backpack was empty, careful exploration of the trench where he died revealed remnants of animal skin and bones at the same spot where the pack lay. There was also the remainder of a pile of berries.Clearly the man didn’t starve to death. ![]() ![]() ![]() ![]() Freeze-dried by the frigid climate, his inner organs and other soft tissues are much better preserved than those of dried-upEgyptian mummies or the waterlogged Scandinavian "Bog Men" found in recent years. One concern, voiced by archeologistColin Renfrew ofCambridge University, is that the hot TV lights that greeted the hunter’s return to civilization may have damaged these fragile tissues, jeopardizing a chance to recover additional precious genetic information from his chromosomes. If not, Renfrew says, "it may be possible to get very longDNA、sequences out of this material. This is far and away the most exciting aspec |
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第5题:{{B}}Set 5{{/B}}
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