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  用途广泛的一些连词
  作者:FroG 文章来源:不详 点击数:360 更新时间:2008-5-3  
  
 

用途广泛的一些连词

南昌十九中  宋焘

 

   请大家注意下面这些连词,他们用途多样,意义很多,

一、when

  1 . 表示时间,意思是当……的时候。例如:  

  The fire was put out when they came . 他们来到的时候,大火已经被扑灭了。

  2 . 表示条件,意思是如果……,要是……例如:

  Turn off the switch when anything goes wrong with the machine .

  3 . 表示原因,意思是既然。例如:

  How can he succeed when he won't work?

  4 . 表示让步,意思是虽然,然而,可是。例如:

  He walks when he might ride .

  We have only three chairs when we need five .

 

二、while 

  1 . 表示时间,意思是当……的时候和……同时。例如:

  Please be quiet while I am talking to you .

  2 . 表示让步,意思是虽然,尽管。例如:

  While I understand what you say , I can't agree with you .

  While he is respected , he is not liked .

  3 . 表示对比,意思是而,然而。例如:

  She is very diligent , while he is very lazy .

  You like sports , while I'd rather read .

 

三、If

  1 . 表示条件或假设,意思是如果,假如。例如:

  We'll stay at home if it rains tomorrow .

  If I were you , I would not go .

  2 . 表示让步,意思是虽然,即使。例如:

  I will go if I die for it .

  If I am wrong , you come wrong , too .

  3 . 表示时间,意思是无论何时,当……,相当于 whenever。例如:

  If I do not understand what he says , I always ask him .

  If winter comes , can spring be far behind?

  4 . 表示原因,意思是既然。例如:

  If you don't like the job , why don't you change it?

 

四、as long as , so long as

  1 . 表示时间,意思是达……之久。例如:

   You can keep the book as long as you like .

  During the holidays , I like to stay in the countryside as long as I can .

  2 . 表示条件,意思是只要。例如:

  As long as you tell truth , I'll try to help you .

  You may take this book away so long as you return it on time .

  3 . 表示原因,意思是既然,由于,因为。例如:

  So long as the weather is changeable these days , we'd better get in wheat in time . 

 

五、since

  1 . 表示时间,意思是自从……以来。例如:

  I haven't heard from him since he left .

  It is ten years since he joined the army .

  2 . 表示原因,意思是既然。例如:

  Since this method doesn't work , let's try another .

  

 

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