重生温馨小日子任妖咪:请问什么是一般现在时,它的句形是什么?
来源:百度文库 编辑:高校问答 时间:2024/05/10 08:19:32
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.