一般现在时有三种形态
1. 谓语是 be( am/ is/ are)的一般现在时。
①肯定形式:主语+ be+表语(形容词、名词充当表语)。
I am hungry.
You are beautiful.
He is a doctor.
②否定形式:主语+ be+ not+表语(形容词、名词充当表语)。
I am not hungry.
You aren't beautiful.
He isn't a doctor.
③一般疑问句形式: Be+主语+表语(形容词、名词充当表语)?
肯定回答: Yes,主语+ be. 否定回答: No,主语+ be+ not.
— Are you hungry?
— Yes, I am./ No, I'm not.
— Is he a doctor?
— Yes, he is./ No, he isn, t.
④特殊疑问句形式:特殊疑问词+ Be开头的一般疑问句?
— What is he?
— He is a doctor.
注意: be要随着主语变。
2. 谓语动词是实义动词(及物动词或不及物动词)的一般现在时。
①肯定形式:“主语+及物动词+宾语”或“主语+不及物动词”。
She has a little brother.
她有一个弟弟。
The sun rises in the east.
太阳从东方升起。
②否定形式:“主语+ don't/ doesn't+及物动词+宾语”或“主语+ don't/ doesn't+不及物动词”。
She doesn't have a little brother.
她没有弟弟。
I don't eat every morning.
我每天早晨都不吃饭。
③一般疑问句形式:“ Do/ Does+主语+及物动词原形+宾语”或“ Do/ Does+主语+不及物动词原形”。
肯定回答: Yes,主语+ do/ does. 否定回答是: No,主语+ don't/ doesn't.
— Do you eat every morning?
— Yes, I do./ No, I don't.
— Does she have a little brother?
— Yes, she does./ No, she doesn't.
④特殊疑问句:特殊疑问词+ do/ does开头的一般疑问句?
What do you like?
When do you go to school?
注意:根据主语确定用 do还是 does。