2. 外语
  3. The sun rises in the east and sets in the west, so it seems as if the sun______round the earth.

The sun rises in the east and sets in the west, so it seems as if the sun______round the earth.

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问题 The sun rises in the east and sets in the west, so it seems as if the sun______round the earth.
选项 A、had circled
B、was circling
C、might be circling
D、were circling
答案D
解析 该题是语法结构题，考查虚拟语气在as if引导的从句中的用法。虚拟语气可以用在as if引导的方式状语从句中。如果从句中的动词与主句的动词同时发生，该动词用过去式，如：She loves the children as if they were her own．她爱这些孩子就好像他们是她亲生的一样。如果从句中的动词表示的动作先于主句的动词发生，该动词用had+动词过去分词，如：He talked about America as if he had been there．他谈起美国来就像他去过似的。如果从句中的动词表示的动作后于主句的动词发生，该动词用would/could+动词原形，如：The little girl looks as if she would cry．小女孩看起来要哭了。因此，根据题意和语法规则，选项D为最佳答案。
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