Can trees talk? Yes, but not in words. Scientists have reason to believe 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 (毛虫) changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves and stopped eating them. Then even more astonishing, the tree sent out a special smell---a signal causing its neighbors to change the chemistry of their own leaves and make them less tasty.

Communication, of course, doesn’t need to be in words. We can talk to each other by smiling, raising our shoulders and moving 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 should not trees have ways of sending message?

（10分） (1) It can be concluded from the passage that caterpillars do not feed on leaves that __________. （2分） A are lying on the ground B have an unpleasant taste C bees don’t like D have an unfamiliar shape 正确答案B您的答案是 B (2) The willow tree described in the passage protected itself by __________. （2分） A growing more branches B communicating with birds and bees C changing its leaf chemistry D shaking caterpillars off 正确答案C您的答案是 C (3) According to the passage, the willow tree was able to communicate with other trees by __________. （2分） A waving its branches B giving off a special smell C dropping its leaves D changing the color of its trunk 正确答案B您的答案是 B (4) According to this passage, bees communicate by __________. （2分） A making special movement B touching one another C smelling one another D making unusual sound 正确答案A您的答案是 A (5) The author believes that the incident described in the passage __________. （2分） A cannot be taken seriously B should no longer be permitted C must be checked more thoroughly D seems completely reasonable 正确答案D您的答案是 D