初中英语:陈述句


来源:柳州满分家教网 日期:2016-8-8

初中英语:陈述句

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1. 陈述句:

  陈述句是用来陈述一个事实或表达说话人看法(包括肯定和否定)的句子。通常用降调,句末用句号"."。

  Tom has a new car.

  The flower isn't beautiful.

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2. 陈述句否定式的构成

  (1) 如果肯定陈述句的谓语部分含有助动词、情态动词或连系动词be,则只需在这些动词后加not即可构成否定式。

  He is playing the guitar.(肯定)

  He is not playing the guitar.(否定)

  We can get there before dark.(肯定)

  We can't get thee before dark.(否定)

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  (2) 如果陈述句的谓语动词是实义动词,而其中又没有情态动词或助动词时,则需根据人称和时态在该实义动词前加don't, doesn't或didn't。同时把该实义动词变为原形。

  He plays the violin well.(肯定)

  He doesn't play the violin well.(否定)

  She won the game.(肯定)

  She didn't win the game.(否定)

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  (3) 如果句子是there be结构或谓语动词是have(有),除了be和have之后加not之外,句中如果有some要变为any。例如:

  There is some water in the cup. →There is not any water in the cup.

  He has some books. →He has not any books.

  (4) 除not以外,否定词no, never, nothing, nobody, few等也可构成否定句。例如:

  There is something wrong with his bike. →There is nothing wrong with his bike.

  I have seen the film. →I have never seen the film.

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