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    精英家教网 > 高中英语 > 题目详情
    8．Every evening after dinner，_____ tired from work，I will spend some time reading．（　　）
    A．unlessB．ifC．untilD．when

    分析 每天晚餐后，如果不累的话，我会读一些东西．

    解答 答案：A．根据 tired from work（上班累了）和I will spend some time reading（我会读一些东西）可知句义应该表示如果不累的话，我会读一些东西，所以答案是A unless"如果不，除非"，其他选项的含义分别是B"如果"；C"直到"；D"当…时"．

    点评 考查从属连词．
    unless是从属连词，引导条件状语从句，含有否定意义，相当于if条件状语从句的否定形式．所以unless=if not．注意：unless引导的条件状语从句和if条件状语从句，与其它时间状语从句一样，用一般现在时代替将来时．

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