题目内容
4.---We can't get good grades ______ we study harder.---I agree.That's why I study so hard.( )
| A. | because | B. | if | C. | unless |
分析 --除非我们更加努力学习,否则我们不会取得好成绩的.
--我赞同,这就是我学习这么用功的原因.
解答 答案:C.
本题考查的是从属连词的辨析.根据语境推测句意是"除非我们更加努力学习,否则我们不会取得好成绩的.
"从句意来看,这里需要一个表假设的连词,说明后句是表假设的条件状语从句,结合选项,unless可以引导一个表假设的条件状语从句,意为"除非",相当于if not.故选C.
点评 比较和分析选项中连词的不同含义及其用法是解答该题的关键;还要根据句中信息正确推测该句句意,进而作出解答.
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