题目内容
8.Mrs Chen is very strict-we don't dare to say a word _____ she asks us to.( )A. | until | B. | before | C. | when | D. | unless |
分析 陈老师很严厉,如果她不许,我们不敢说一个字.
解答 答案:D.根据we don't dare to say a word(我们不敢说一个字)和 she asks us to(她要求我们做)可知两句是条件关系,句义应该是如果她不许,我们不敢说一个字,所以答案是D unless"如果不,除非".A项 until强调时间的延续,引导时间状语从句,所以不对.
点评 考查从属连词.
unless 和 until 的用法区别
作为从属连词含义不同,引导从句性质不同
unless与until均为从属连词,unless表"除非",强调条件,引导条件状语从句;until表"直到",强调时间的延续,引导时间状语从句.
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