需要掌握一下三种时态最基本的用法
You are clever.
He is tall.
I am Tom.
I have a car.
I want to be a teacher.一般现在时 主语+do动词原型
I am watching TV.
He is running.
He is reading.
She is drawing a picture.
They are talking happily.现在进行时.主语+系动词(be)+doing动词不定式
He will go there.
She is going to work hard this term.
I will help you.
They are going to have a party.
You will fly a kite.一般将来时.主语+will/be going to +do动词原型
