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A、Hoatzins in dry and rainy seasons. B、The relatives and enemies of hoatzins. C、Primitive birds and hoatzins of the Amazon. D、Th
A、Hoatzins in dry and rainy seasons. B、The relatives and enemies of hoatzins. C、Primitive birds and hoatzins of the Amazon. D、Th
admin
2013-09-14
42
问题
Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws on its wings when young. They build their homes about 4.6m above the river, an important feature for the safety of the young. It is called the hoatzin.
In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.
Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak, they can climb about in the bushes, looking very much like what primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.
During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.
Questions 22 to 25 are based on the passage you have just heard.
22. What is the passage mainly about?
23. Why are young hoatzins different from their parents?
24. What can we infer about primitive birds from the passage?
25. Why do hoatzins collect together in smaller groups when the rainy season comes?
选项
A、Hoatzins in dry and rainy seasons.
B、The relatives and enemies of hoatzins.
C、Primitive birds and hoatzins of the Amazon.
D、The appearance and living habits of hoatzins.
答案
D
解析
选项均为名词短语且概括性强表明,本题可能考查短文的话题。短文的开头和结尾处都没有明确短文的话题,因此做题时需从整体上把握全文并归纳出短文的话题。短文的开头部分讲的是hoatzins的appearance(外观),后面接着提到hoatzins成长,怎样度过旱季和雨季,即hoatzins的生活习性,故答案为D)。做题时应注意把握住短文的主要内容,切勿以偏概全。
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0
大学英语四级
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