09年12月六级模拟试卷及解析之七
06-10
0
【文都教育 - 大学英语四六级考试(CET)试题】:
Part I Writing (30 minutes)

  Directions: For this part, you are allowed 30 minutes to write a Campaign Speech. You should write at least 150 words following the outline given below。

  1.你认为自己具备了什么条件(能力、性格、爱好等)可以胜任学生会主席的工作。

  2.如果当选,你将为本校同学做些什么。

  Part Ⅱ Reading Comprehension (Skimming and Scanning) (15 minutes)

  Directions: In this part, you trill have 15 minutes to go over the passage quickly and answer the questions on the Answer Sheet. For questions 1-7, choose the best answer from the four choices marked A), B), C) and D). For questions 8-10, complete the sentences with the information given in the passage。

  Bird Brains

  Cracking Walnuts

  The scene: a traffic light crossing on a university campus in Japan. Carrion crows and humans line up patiently, waiting for the traffic to halt. When the lights change, the birds hop in front of the cars and place walnuts, which they picked from the adjoining trees, on the road. After the lights turn green again, the birds fly away and vehicles drive over the nuts, cracking them open. Finally, when it's time to cross again, the crows join the pedestrians and pick up their meal。

  Biologists already knew the corvine family--it includes crows, ravens, rooks, magpies and jackdaws--to be among the smartest of all birds. But this remarkable piece of behavior would seem to be a particularly acute demonstration of bird intelligence. Researchers believe they probably noticed cars driving over nuts fallen from a walnut tree overhanging a road. The crows already knew about dropping clams from a height on the seashore to break them open, but found this did not work for walnuts because of their soft green outer shell。

  Other birds do this, although not with quite the same precision. In the Dardia Mountains of Greece, eagles can be seen carrying tortoises up to a great height and dropping them on to rocks below。

  Do Birds Have Intel  

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