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 (喙), they can climb about

　　in the bushes, looking very much like 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.

　　【语篇解读】　文章主要介绍了生活在亚马逊河的麝雉the hoatzin的外表特征以及生活习性。

　　1．What is the text mainly about?

　　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　[主旨大意题。文章主要介绍了the hoatzin，它是生活在亚马逊河的麝雉。介绍了这种鸟的外表特征以及生活习性。故选D。]

　　2．Young hoatzins are different from their parents in that________.

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