2014高考英语考前知识大清理32
I. 语法复习： 省略与替代(2)
三、从句中的省略
1． 在if引起的从句中如有等词倒装时，省略if。
Were I you, I would not do it.
Had we known your t elephone number, I would have given you a phone call.
2．
We have finished our homework, so have they. (= and they have finished their homework , too)
If you don 't go to the concert, neither shall I. (= I sha ll not go to the concert either)
3．宾语从句中连词that引起的宾语从句和定语从句中的关系代词that、which，whom等
在定语从句中作宾与可以省略that。
四、介词的省略
prevent sb (from) doing sth. stop sb (from) doing sth.
have trouble / difficulty (in) doing sth. spend time / money (in) doing sth.
