you put your heart into the book.you won't understand it．( )A．UnlessB．UntilC．BecauseD．Though 题目和参考答案——青夏教育精英家教网—

题目内容

2． you put your heart into the book，you won't understand it．（　　）

A．

Unless

B．

Until

C．

Because

D．

Though

分析除非你用心读书，不然你不会理解它的．

解答正确答案：A．unless引导条件状语从句，表示除非、如果不，until引导时间状语从句，表示直到…为止，because引导原因状语从句，表示因为，though引导让步状语从句，表示虽然、尽管．根据句意除非你用心读书，不然你不会理解它的，相当于if…not．故选择A．

点评本题考查从属连词，需清楚各连词的含义及其引导的从句，再根据句意做出选择．

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