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名词性that-从句


作者:fs88.cn 来源:网络 时间:2008-09-18 加入收藏

1)由从属连词that引导的从句叫做名词性that-从句。 that只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语,例如:
  主语:that he is still alive is sheer luck.  他还活着全靠运气。
  宾语:john said that he was leaving for london on wednesday. 约翰说他星期三要到伦敦去。
  表语:the fact is that he has not been seen recently.   事实是近来谁也没有见过他。
  同位语:the fact that he has not been seen recently disturbs everyone in his office.
       近来谁也没有见过他,这一事实令办公室所有的人不安。
  形容词宾语:i am glad that you are satisfied with your job.
       你对工作满意我感到很高兴。

2)that-从句作主语通常用it作先行词,而将that-从句置于句末,例如:
  it is quite clear that the whole project is doomed to failure. 很清楚,整个计划注定要失败。
  it's a pity that you should have to leave. 你非走不可真是件憾事。
  
  用it作形式主语的that-从句有以下四种不同的搭配关系:
  a. it + be +形容词+ that-从句
   it is necessary that…    有必要……
   it is important that…    重要的是……
   it is obvious that…     很明显……

  b. it + be + -ed 分词+ that-从句
   it is believed that…     人们相信……
   it is known to all that…   从所周知……
   it has been decided that…   已决定……

  c. it + be +名词+ that-从句
   it is common knowledge that…  ……是常识
   it is a surprise that…   令人惊奇的是……
   it is a fact that…     事实是……

  d. it +不及物动词+ that-分句
   it appears that…      似乎……
   it happens that…      碰巧……
   it occurred to me that…   我突然想起……

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