张曼玉唱歌专辑:请问什么是一般现在时，它的句形是什么？

动词一般现在时的句型结构分为三种：连系动词be，动词have和其他行为动词

1． 联系动词be（又称be动词）一般现在时的句型：连系动词be要随主语的人称和数变为am, are, is。第一人称单数用am, 第二人称单数用are, 第三人称单数用is，各人称复数一律用are.

2． 肯定句型：主语＋be+表语

单数 复数

I am a student. We are students.

You are a doctor. You are doctors.

He is tall. They are tall.

She is a teacher. They are new.

It is nice today.

3． 否定句型：主语＋be+not+表语。（只在be后面加not）

单数

I am not a student. We are not students.

You are not a doctor. You are not doctors.

He is not tall. They are not tall.

She is not a teacher. They are not new.

4． 疑问句型：Be＋主语＋表语？（将be置于主语前面）

简略回答句型： 肯定回答：Yes, 主语＋be

否定回答：No, 主语+be not

单数：

A: Am I a student?

B: Yes, you are. / No, you are not.

A: Are you a worker?

B: Yes, I am. / No, I am not.

A: Is he a soldier?

B: Yes, he is. / No, he is not.

A: Is she a nurse?

B: Yes, she is. / No. she is not.

复数

A: Are we friends?

B: Yes, we are./ No, we are not.

A: Are you from china?

B: Yes, we are. / No, we are not.

A: Are they students?

B: Yes, they are. / No, they aren’t.

行为动词：一般现在时用动词原形表示，当主语是第三人才人称单数时，动词词尾要加s.疑问句和否定句的变化不同于连系动词，需要借助于助动词do, does（第三人称单数）构成。句型如下：

1. 行为动词的肯定句型：主语+动词原形

第三人称单数(动词词尾+s)

1. He works in a factory.

2. She likes computer games.

其他人称（动词原形）

1. I/You work in a factody.

2. We/You like football.

3. They go to school every day.

2. 行为动词的否定句型：主语+ do/does not +动词原形

第三人称单数 (does not + 动词原形)

1. He doesn’t work in a factory.

2. She doesn’t like computer games.

其他人称（do not+动词原形）

1. I/You don’t work in a factory.

2. We/You don’t like football.

3. They don’t go to school every day.

4. 行为动词一般疑问句型：Do/Does + 主语 +动词原形

简略回答句型： 肯定回答：Yes, 主语＋do/does

否定回答：No, 主语+do/does not.

A: Does he like music?

B: Yes, he does. / No. he doesn’t

A: Do you work in a factory.

B: yes, I do. / No, I don’t.