题目内容

15．We all know clearly the immediate future，________，however，it is hard to tell what lies．（　　）
A．through whichB．within whichC．beyond whichD．towards which

分析 我们都清楚地知道不远的未来，然而，很难说将来会变成什么样．

解答 答案：C．
考查非限制性定语从句．非限制性定语从句放在逗号后与主句隔开，根据选项可知，此处考查介词+关系词 引导非限制性定语从句的用法，先行词是the immediate future"最近的将来"，故关系词选which，根据句意可知与"最近的将来"形成比较的是久远的将来，那么选项中的介词through 通过，within在…之内，beyond超出，towards朝向，符合意思的是beyond，故选C．

点评 本题考查非限制性定语从句．非限制性定语从句需要用逗号与句子隔开，介词+关系词也可以用来引导非限制性定语从句，先行词指人时用whom，先行词指物时，用which，介词的选择需要看句子的要求．

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