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2.There are over 58,000rocky objects in _______ space,about 900of which could fall down onto _______ earth.(  )
A.the; theB.不填; theC.the; 不填D.a; the

分析 句意:在太空里有58,000个岩石体,大约有900颗可能会落到地球上.

解答 答案:B.第一空考查固定搭配in space在太空;第二空,表示世界上独一无二的东西用定冠词the,所以the earth特指地球.故选B.

点评 本题考查冠词的辨析,冠词的用法集中在the表示特指,a/an表示泛指,以及冠词的固定搭配和零冠词的情况.

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