【答案】C 【解析】
试题分析：句意：他问我是否已经把书还给图书馆了，我承认。我还没有还。A.什么时候；B.在哪里；C是
否；D.什么。根据句意，故选C 考点：考查宾语从句。
【名师点睛】本题是对宾语从句中连词的考查。对于宾语从句的连词的确定，首先确定连词的词义，然后根据句意判断出正确的连词，本句的句意很明显，确定为是否。
2016年高考题
1.【2016·北京】24. Your support is important to our work. ________ you can do helps. A. However 【答案】C
B. Whoever
C. Whatever
D. Wherever
考点：考查主语从句 【名师点睛】
主语从句 Subject Clauses (在主语的位置上)
1. 从句的连接词可以是that, 也可以是特殊疑问词wh-。 That he is a famous singer is known to us.= It is known to us that… Whether we shall attend the meeting hasn’t been decided yet. Who will go makes no difference.
? It is known to us that he is a famous singer. ? It is not yet fixed when he will go to America. 本题中，whatever引导主语从句，同时作do的宾语。 2. wh和ever 连用的词引导的名词性从句和状语从句的区别
? 区分使用wh-和wh-ever: wh 有疑问的意思；wh-ever有肯定强调的意思 *Who will be invited hasn’t been decided. *Whoever comes here is welcomed.
*A reward of $1,000 will be given to whoever can provide any clues to the case. *The gift will be given to whomever I like.
? wh-ever 在引导名词性从句时不能用no matter wh-来替换，但在引导状语从句时可以替换 Whatever happened, he would not mind. = No matter what happened, he……
2.【2016·北京】29. The most pleasant thing of the rainy season is ________ one can be entirely free from dust. A. what 【答案】B
B. that
C. whether
D. why
考点：考查表语从句 【名师点睛】
表语从句 Predictive Clauses (在be动词 后)
1. 从句的连接词可以是that, 也可以是wh-的特殊疑问词。 The fact is that she never liked him.
The question is whether the movie is worth seeing. The question is who can complete the difficult task. ? This/That/It is because …
I think it is because you are doing too much. ? The reason why…is that…
The reason why the play is successful is that it appeals to many different people. 2. 只能用whether 的情况
* 在表语从句、主语从句、同位语从句中 * 在介词后的宾语从句中
It all depends on whether they will support us. * 在不定式之前
He doesn’t know whether to stay or not. * 从句中有or not时
He doesn’t know whether he should stay or not.
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