专四

单选题The new problem is that

A． cattle destroy food suppl
B． wild animals ferociously attack cattl
C． cattle occupy the traditional habitats of wild animal
D． wild animals no longer move from place to plac

参考答案：A进入在线模考
细节题。文中提到“…there is now a new problem．Men have started cattle farming and these cattle aye killing the grass and plants”，由此可知，新问题是人类放养家畜，而家畜毁坏了草和其他植物，从而破坏了食物供应，因此[A]为答案。

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2

Who used to live together in an extended family?
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