题目内容
19.The reason ______ he was late for work was that he didn't get up early.( )A. | which | B. | because | C. | why | D. | what |
分析 他上班迟到的原因是他没有早起.
解答 答案为C.本题考查定语从句中关系词的选择.题干中空格后面是修饰和限制名词reason的定语从句,把先行词reason带入到定语从句,完整的定语从句是"he was late for work for the reason";可见for the reason在从句中充当原因状语.定语从句中关系副词why可指代reason在从句中做状语,所以该题答案是C.A 项which是关系代词,不能做状语,排除;B项because和D项中what不引导定语从句,所以排除.
点评 选择定语从句中的关系词,首先要理解各关系词的用法;然后找准先行词,将先行词带入到定语从句;最后根据先行词在定语从句中的作用判断关系词.
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