注意幾種時態(tài)的區(qū)別：

(1)一般現(xiàn)在時：表示經(jīng)常、反復(fù)發(fā)生的動作或存在的狀態(tài)。

We study hard at school every day.

He goes to school by bike.

(2)一般過去時：表示在過去某個時候發(fā)生的動作或存在的狀態(tài)，也表示在過去某段時間里經(jīng)常發(fā)生的習(xí)慣性動作。

Did you go there last week?

I went to see my uncle yesterday.

(3)一般將來時：表示在將來會發(fā)生的動作或存在的狀態(tài)。

I’ll come to see you next Sunday.

She is babysitting her sister this weekend.

We are going to Wuhan next Monday.

(4)現(xiàn)在進行時：表示在說話時或現(xiàn)階段正在發(fā)生的動作或存在的狀態(tài)。

Is she listening to music?

He is having a meeting.

(5)過去進行時：表示在過去某個時間正在發(fā)生的動作或存在的狀態(tài)。

What was she doing when you came in?

They were watching TV when I went into the room.

(6)現(xiàn)在完成時：表示在說話時剛剛結(jié)束的某一動作或狀態(tài)。

I have learned English for 5 years.

Have you ever been to Singapore?

(7)現(xiàn)在完成進行時：表示某一在過去開始，一直延續(xù)到現(xiàn)在，有可能剛剛結(jié)束，也有可能要繼續(xù)下去的動作。

We have been skating for two hours.

She has been learning Chinese since she came to China.

注意各種時態(tài)的構(gòu)成形式和不同功能。