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    精英家教网 > 高中英语 > 题目详情
    _______ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
    A．IfB．WhileC．BecauseD．As
    B
    B 本题考查连词的用法。句意：虽然因特网很有用处，但我认为在网上花太多的时间不是个好主意。if引导条件状语从句；because引导原因状语从句；while和as都可作“虽然，尽管”将，都可以引导让步状语从句，但as引导让步状语从句时要部分倒装，while引导的让步状语从句用正常语序，且常放在主句的前面。
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