energy.turn off the water when you are brushing your teeth．( )A．SaveB．SavingC．SavedD．To save 题目和参考答案——青夏教育精英家教网—

题目内容

19． energy，turn off the water when you are brushing your teeth．（　　）

A．

Save

B．

Saving

C．

Saved

D．

To save

分析为了节约资源，当你刷牙的时候，要关上水．

解答答案：D．根据energy，turn off the water when you are brushing your teeth，可知在这里energy前面用to save构成to save energy，在这里作目的状语，一般翻译成为了某某，表目的，结构为to do sth．故选D．

点评本题考查了动词不定式作目的状语的用法，注意其构成：to do sth．

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