1---------------------------------------------------------------------------------------------------------------------------------------------------------------- 句子的种类 【名师点睛】 一. 陈述句的构成形式及基本用法 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. 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) (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) (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. 二. 祈使句的构成形式及基本用法 2---------------------------------------------------------------------------------------------------------------------------------------------------------------- 祈使句是用来表示命令、请求、建议、号召等的句子,谓语动词用原形,句末用感叹号“!” 或句号“.” 。朗读时一般用降调。 1. 肯定的祈使句: (1)祈使句主语是you 时,you 常省略,但如果要特别强调对方或表达某种强烈的情绪时可以有主语或称呼语。 Be quiet. You be quiet!...