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三、从句中的省略
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 telephone 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 shall 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.
be busy (in) doing sth.
II. 句型复习：插入语
插入语是英语口语中很常见的语法现象。通常用一个逗号把它与句子隔开，其位置可在句首、句中或句末。其作用是对一句话、某一个词或词组做些附加的解释和说明，或在两句之间起连结作用。可以用作插入语的有：不定式、分词、副词、介词短语和句子等等。
to tell you the truth 老实对您说 to be sure 确实 to be honest 老实说
Generally speaking 一般来说 Judging by his …从…来判断
including…. 包括….
in my opinion 依我看 for example 例如 By the way 顺便说一下
on the contrary 恰恰相反 As a result 结果
However 不过 surely 的确 Still 当然
Besides 再说 that is to say 就是说 I’m afraid. 恐怕
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III.词汇：A. 常用动词用法 (32)
matter vi. 有关系，有严重性，要紧
没关系 It doesn’t matter.
It doesn’t matter that．．．． = It doesn’t make difference that．．． It doesn’t matter doing sth.
n. What’s the matter? 怎么啦？ What’s the matter with ．．．?
No matter what(how．．．) ．．．不管怎么．．．
It is no matter that．．．． 没关系 as a matter of fact 事实上，不瞒你说
B.. 记住下列词汇：
screen(屏幕) secretary(秘书) separately(分开地) serious(严重的)
servant(仆人) service(serve)(服务) shabby(破旧的) thorough(彻地的)
measure(测量) medal(奖章) medical(医学的) medicine(药)
mercy(宽恕) model(模型) belt(带子) carve(雕刻)
coast(海岸) fierce(猛烈的) fragile(易脆的) gymnast(gymnastics)(体操(运动员))
Russian(Russia) (语) socialism(socialist)(社会主义) memory(memorize)(纪念)
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