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英语专业四级语法词汇辅导:It的使用

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  it用来充当形式主语或形式宾语,后面的真正主语或真正宾语通常是不定式结构、动名词或名词性分句。It的这种用法叫作先行it。

  eg.

  It is quite important for us to form a good studying habit.

  I think it important to finish the task in time.

  it用来充当形式主语,后置的真正主语往往可以取代先行it的位置,出现在句首。

  Eg. To form a good studying habit is quite important for us

  并非所有先行it结构都可转化,下边句子只能作如下转化。

  eg.

  It seems that John is not coming after all.

  John doesnt seem to be coming after all.

  Cleft it :

  Task

  1. 句子的基本结构

  2 .分裂句的本质

  3 . 分裂句的结构

  4 .假拟分裂句

  句子结构

  主语+谓语

  已知信息

  新信息

  末端中心

  末端重心

  Eg. I told him the news yesterday.

  分裂句的本质

  Eg. I told him the news yesterday.

  Eg. It is I that told him the news yesterday

  分裂it

  分裂句是以it为引导词的强调句型。它的结构形式是:It +be 的一定形式+中心成分+that /who分句。通过这种结构可以强调除谓语动词以外的大多数句子成分。说话人通过分裂句分别强调主语、间接宾语、直接宾语、状语,使之成为信息中心。分裂句中的谓语可以采取复杂形式

  Eg.

  It is I who am to blame.

  It may have been at Christmas that John gave Mary a handbag.

  It was in Shanghai that I got my Masters Degree.

  主语补语通常不作分裂句的中心成分。宾语补语可以这样用。

  It is beautiful that she is.

  It is Chairman of the committee that they elected him

  

  it用来充当形式主语或形式宾语,后面的真正主语或真正宾语通常是不定式结构、动名词或名词性分句。It的这种用法叫作先行it。

  eg.

  It is quite important for us to form a good studying habit.

  I think it important to finish the task in time.

  it用来充当形式主语,后置的真正主语往往可以取代先行it的位置,出现在句首。

  Eg. To form a good studying habit is quite important for us

  并非所有先行it结构都可转化,下边句子只能作如下转化。

  eg.

  It seems that John is not coming after all.

  John doesnt seem to be coming after all.

  Cleft it :

  Task

  1. 句子的基本结构

  2 .分裂句的本质

  3 . 分裂句的结构

  4 .假拟分裂句

  句子结构

  主语+谓语

  已知信息

  新信息

  末端中心

  末端重心

  Eg. I told him the news yesterday.

  分裂句的本质

  Eg. I told him the news yesterday.

  Eg. It is I that told him the news yesterday

  分裂it

  分裂句是以it为引导词的强调句型。它的结构形式是:It +be 的一定形式+中心成分+that /who分句。通过这种结构可以强调除谓语动词以外的大多数句子成分。说话人通过分裂句分别强调主语、间接宾语、直接宾语、状语,使之成为信息中心。分裂句中的谓语可以采取复杂形式

  Eg.

  It is I who am to blame.

  It may have been at Christmas that John gave Mary a handbag.

  It was in Shanghai that I got my Masters Degree.

  主语补语通常不作分裂句的中心成分。宾语补语可以这样用。

  It is beautiful that she is.

  It is Chairman of the committee that they elected him

  

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