2020最新托福阅读理解真题.doc
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1、2020最新托福阅读理解真题 为了让大家更好的准备托福考试,给大家整理一些托福阅读真题,下面就和大家分享,来欣赏一下吧。托福阅读真题1No two comets ever look identical, but they have basic features in common, one of the most obvious of which is a coma. A coma looks like a misty, patch of light with one or more tails often streaming from it in the direction away fro
2、m the sun.At the heart of a comets coma lies a nucleus of solid material, typically no more than 10 kilometers across. The visible coma is a huge cloud of gas and dust that has escaped from the nucleus, which then surrounds like an extended atmosphere. The coma can extend as far as a million kilomet
3、ers outward from the nucleus. Around the coma there is often an even larger invisible envelope of hydrogen gas.The most graphic proof that the grand spectacle of a comet develops from a relatively small and inconspicuous chunk of ice and dust was the close-up image obtained in 1986 by the European G
4、iotto probe of the nucleus of Halleys Comet. It turned out to be a bit like a very dark asteroid, measuring 16 by 8 kilometers. Ices have evaporated from its outer layers to leave a crust of nearly black dust all over the surface. Bright jets of gas from evaporating ice burst out on the side facing
5、the Sun, where the surface gets heated up, carrying dust with them. This is how the coma and the tails are created.Comets grow tails only when they get warm enough for ice and dust to boil off. As a comets orbit brings it closer to the sun, first the coma grows, then two distinct tails usually form.
6、 One, the less common kind, contains electrically charged (i.e., ionized) atoms of gas, which are blown off directly in the direction away from the Sun by the magnetic field of the solar wind. The other tail is made of neutral dust particles, which get gently pushed back by the pressure of the sunli
7、ght itself. Unlike the ion tail, which is straight, the dust tail becomes curved as the particles follow their own orbits around the Sun.1. The passage focuses on comets primarily in terms of their(A) orbital patterns(B) coma and tails(C) brightness(D) size2. The word identical in line 1 is closest
8、in meaning to(A) equally fast(B) exactly alike(C) near each other(D) invisible3. The word heart in line 4 is closest in meaning to(A) center(B) edge(C) tail(D) beginning4. Why does the author mention the Giotto probe in paragraph 3?(A) It had a relatively small and inconspicuous nucleus.(B) It was v
9、ery similar to an asteroid.(C) It was covered with an unusual black dust.(D) It provided visual evidence of the makeup of a comets nucleus.5. It can be inferred from the passage that the nucleus of a comet is made up of(A) dust and gas(B) ice and dust(C) hydrogen gas(D) electrically charged atoms6.
10、The word graphic in line 9 is closest in meaning to(A) mathematical(B) popular(C) unusual(D) vivid7. Which of the following occurred as the ices from Halleys Comet evaporated?(A) Black dust was left on the comets surface.(B) The nucleus of the comet expanded.(C) The tail of the comet straightened ou
11、t.(D) Jets of gas caused the comet to increase its speed.8. All of the following statements about the tails of comets are true EXCEPT:(A) They can contain electrically charged or neutral particles.(B) They can be formed only when there is sufficient heat.(C) They are formed before the coma expands.(
12、D) They always point in the direction away from the Sun.9. The word distinct in line 17 is closest in meaning to(A) visible(B) gaseous(C) separate(D) new10. Compared to the tail of electrically charged atoms, the tail of neutral dust particles isrelatively(A) long(B) curved(C) unpredictable(D) brigh
13、tPASSAGE 65 BBADB DACCB托福阅读真题2Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They
14、 will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks ol
15、d, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult
16、 is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech.Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their
17、mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerat
18、e the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinction
19、s between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs
20、or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults.1. What does the passage mainly discuss?(A) How babies differentiate between the sound of the human voice and
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