when和while的区别( 二 )


  ① As the time went on , the weather got worse.(as表示“随着……”之意)  
  ② The atmosphere gets thinner and thinner as the height increases.随着高度的增加 , 大气越来越稀薄 。  
  ③As years go by , China is getting stronger and richer.随着时间一年一年过去 , 中国变得越来越富强了 。  
  ④The little girls sang as they went.小姑娘们一边走 , 一边唱 。  
  ⑤The sad mother sat on the roadside , shouting as she was crying.伤心的妈妈坐在路边 , 边哭边叫 。  
  4.在将来时从句中 , 常用when , 且从句须用一般时代替将来时 。  
  ①You shall borrow the book when I have finished reading it.在我读完这本书后 , 你可以借阅 。  
  ②When the manager comes here for a visit next week , Ill talk with him about this.下周 , 经理来这参观时 , 我会和他谈谈此事 。  
  三、when用于表示“一……就……”的句型中(指过去的事情) 。  
  sb.had hardly(=scarcely) done sth.when...=Hardly / Scarcely had sb.done sth.when...  
  ①I had hardly /scarcely closed my eyes when someone knocked at the door.=Hardly / Scarcely had I closed my eyes when someone knocked at the door.我刚一闭上眼 , 就有人在敲门了 。  
  ②I had hardly /scarcely entered my room when the telephone rang.=Hardly /Scarcely had I entered my room when the telephone rang.我刚一走进房门 , 电话就响了 。

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