什么是系动词

系动词有实际意义,但不能单独做谓语,必须与表语一起构成句子的谓语,说明主语的性质、状态或身份等。 它分为完全系动词和不完全系动词。

1.完全系动词(be)可接名词、代词、形容词、副词、介词短语、非谓语动词短语、句子做表语。如: I’m a student. 我是个学生。(名词) He is fine. 他很好。(形容词) It is me. 是我。(代词) Are you there?你在那儿吗?(副词) She is at school. 她在学校读书。(介词短语) He is to come soon. 他过会儿该来了。(不定式) My job is teaching English. 我的工作是教英语。(动词的ing形式) My idea is that we will start now. 我的想法是我们现在就开始。(句子)

2.不完全系动词 (get,turn,feel,smell,look,sound,taste)一般只接形容词做表语。如:When spring comes, it gets warmer and warmer.

春天来了,天气变得越来越暖和了。 Food may go bad soon if it is not put into a fridge.

食物如果不放进冰箱里就会很快变坏。 My brother became / turned a teacher after his graduation.

我哥哥毕业后就当上了老师。(注意become和turn的用法区别)

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