初中英语知识点：陈述句

初中英语知识点：陈述句

陈述句分肯定式和否定式

什么叫陈述句？

用来说明一个事实和表达说话人的看法或观点的句子叫做陈述句。陈述句朗读时通常用降调，句末用句号。

She is a good student.

肯定式

主语＋系动词＋表语

主语＋谓语动词

主语＋谓语动词＋宾语

主语＋谓语动词＋宾语＋宾语补足语

主语＋系动词＋表语

这是我爸爸。

This is my father.

今天暖和。

It is warm today.

主语＋谓语动词

老师笑了。

The teacher smiled.

我不会读。

I can't read.

主语＋谓语动词＋宾语

我想要一个热狗。

I want a hot dog.

我喜欢她。

I like her.

主语＋谓语动词＋宾语＋宾语补足语

她英语讲得好。

she speaks English well.

我很喜欢她。

I like her very much.

否定式

否定句是指句意含有不,没有等意思的句子.

He is not a student.他不是学生。

I am not a boy. 我不是一个男孩。

1.在be动词后加not

2.在can，should， will等后加not

3.不含be动词也不含情态动词的，在动词前加助动词否定形式don’t/doesn’t/didn’t

4.当句子是祈使句时

在be动词后加not ,其他照抄

is → is not isn't

are →are not aren't

am →am not

was →was not wasn't

were → were not weren't

肯: He is a basketball player.

否：He is not a basketball player.

肯：There is a desk in the room.

否：There is not a desk in the room.

肯：They are Englishmen.

否：They are not Englishmen.

在can，should， will等后加not，其他照抄

can →can not can't

should →should not shouldn't

will →will not won't

我会骑自行车。

I can ride a bike.

I can not (can't) ride a bike.

他明天会去学校。

He will go to school tomorrow.

He will not (won't) go to school tomorrow.

不含Be动词也不含情态动词时

主语+don’t/doesn’t/didn’t+动词原形+其它We eat apples.

否：We don’t eat apple s.

He eats apples.

否：He doesn’t eat apples.

I went to school yesterday.

否：I didn’t go to school yesterday.