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1、延吉中学科技英语训练资料 (一) 延吉中学外语组编 2002 ，8，1Passage 1 Can trees talk? Yes-but not in words. Scientists have reason that trees do communicate with each other. Not long ago, researchers learned some surprising things. First, a willow tree attacked in the woods by caterpillars( 毛毛虫 ) changed the chemistry of it
2、s leaves and made them taste so awful that the caterpillars get disgusted and stopped eating them. Then, even more astonishing, the tree sent out special vapors-an alarm signal telling its neighbors to change the chemistry of their own leaves and make them less tasty. Communication, of course, doesn
3、t need to be in words. We can talk to each other by a smile, a frown, a shrug of our shoulders, and a gesture with our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find
4、 nectar for honey . So why shouldnt trees have ways of sending messages? 1.It can he inferred from the passage that caterpillars do not feed on leaves that _ . A. have no good taste B. are lying on the ground C. have an unfamiliar shape D. are located near beehives 2. The willow tree described in th
5、e passage protected itself by _ . A. growing more branches B. changing its leaf chemistry C. communicating with birds and bees D. providing shelter for caterpillars 3. The willow tree was able to communicate with other trees by _ . A. waving its branches B. dropping its leaves C. giving off a specia
6、l vapor D. changing the color of its trunk 4. The author believes that the incident described in the passage _ .A. cannot be taken seriously B. seems perfectly reasonable C. should no longer be permitted D. must be investigated more thoroughly 5. Which of the following statements best describes the
7、organization of the passage? A. A scientific term is invented and its definition is provided B. A phenomenon is described and some possible caused are suggested. C. The view of two researchers are described and contrasted D. A special case id given to illustrate a general principle. Can trees talk?
8、Yes-but not in words. Scientists have reason that trees do communicate with each other. Not long ago, researchers learned some surprising things. First, a willow tree attacked in the woods by caterpillars( 毛毛虫 ) changed the chemistry of its leaves and made them taste so awful that the caterpillars g
9、et disgusted and stopped eating them. Then, even more astonishing, the tree sent out special vapors-an alarm signal telling its neighbors to change the chemistry of their own leaves and make them less tasty. Communication, of course, doesnt need to be in words. We can talk to each other by a smile,
10、a frown, a shrug of our shoulders, and a gesture with our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar for honey . So why shouldnt trees have ways of sendin
11、g messages? ( A )1. It can he inferred from the passage that caterpillars do not feed on leaves that _ . A. have no good taste B. are lying on the ground C. have an unfamiliar shape D. are located near beehives ( B )2. The willow tree described in the passage protected itself by _ . A. growing more
12、branches B. changing its leaf chemistry C. communicating with birds and bees D. providing shelter for caterpillars （ C ）3. The willow tree was able to communicate with other trees by _ . A. waving its branches B. dropping its leaves C. giving off a special vapor D. changing the color of its trunk （
13、B ）4. The author believes that the incident described in the passage _ . A. cannot be taken seriously B. seems perfectly reasonable C. should no longer be permitted D. must be investigated more thoroughly （ D ）5. Which of the following statements best describes the organization of the passage? A. A
14、scientific term is invented and its definition is provided B. A phenomenon is described and some possible caused are suggested. C. The view of two researchers are described and contrasted D. A special case id given to illustrate a general principle. Passage 2 Evey time he returns to his hometown, Pa
15、ul Smith, 23, cant help but be reminded of his high school science project. The outcome of that project a giant wind turbinestands 49 metres high above the town. Five years ago Smith was searching for an idea for a physics project when his teacher, Rom Kvale, suggested wind energy. Smith learned all
16、 about the project and concluded that the Forest City school district could generate its own electricity by installing a wind turbine. A turbine is a device with a fan that is turned by wind, water, stream, or some other force. The force turns the fan, which is connected to a vertical shaft (轴) that drives an electric generator. Smith presented hid idea to the school district, which encouraged him to explore the idea fu
