内容正文:
动词讲解
知识梳理
一、动词的概念与分类
动词是句子中表示动作或者状态的词。根据动词的词义和在句中的作用,可以将动词划分为如下几类:
二、动词的基本形式
1. 情态动词:没有人称和数的变化,后面接动词原形。如:
I can play basketball well.
Mike can speak Chinese.
2. be动词:根据人称和时态的不同,呈现不同形式。如:
现在时:I am very happy today.
Mike is an American boy.
They are playing in the snow.
过去时: He was in Grade 3 last year.
We were at home yesterday.
将来时:There will be a match between Class 1 and Class 2 tomorrow.
I am going to Hainan next week.
3. 助动词:不能单独在句中使用,在句中的作用是协助主要动词构成谓语。如:
We do not (don't) have classes on Saturdays.
My father does not (doesn't) work in the hospital.
Did you go swimming last weekend?
4. 实义动词:小学阶段所学的实义动词有四种形式,即动词原形、第三人称单数形式、现在分词形式(动词的-ing形式)和过去式形式。如:
(1)动词第三人称单数形式的构成
①一般情况下,在动词词尾加-s。如:work→works, look→loo