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2013年全国公共英语五级写作语法指导(9)

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   名词性that-从句
  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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