题目内容
16.________ he will come here isn't clear.( )A. | If | B. | Whether | C. | Where | D. | What |
分析 他是否会来这里还不清楚.
解答 答案是B.本题考查主语从句中的引导词;题干中isn't前是主语从句中;if 不引导主语从句放在句首,故排除A;从句中有了地点here,故排除C;what在名词性从句中可做主语、宾语、表语或定语,本题主语从句成分完整,排除D;whether表示"是否",可以引导各种名词性从句,在从句中不担任成分;根据句意,他"是否"会来还不清楚,答案是B.
点评 名词性从句考查的关键是连接词的选用和语序,因此,我们首先要搞清从句的性质,掌握各连接词的用法,在此基础上判断.此外,关注名词性从句用陈述语序.
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