現(xiàn)在進(jìn)行時(shí)

表示現(xiàn)在正在進(jìn)行的動(dòng)作。

構(gòu)成： 主語(yǔ)+be動(dòng)詞+動(dòng)詞的現(xiàn)在分詞+其它成分(現(xiàn)在分詞的構(gòu)成見(jiàn)附錄)

We are having lunch.

He is reading a book.

The dog is running after a cat.

The boys are swimming across the river.

★變疑問(wèn)句將be動(dòng)詞移到句首

Are we having lunch?

Is he reading a book?

Is the dog running after a cat?

Are the boys swimming across the river?

★變否定句在be動(dòng)詞后面加 not

We are not having lunch.

He is not reading a book.

The dog is not running after a cat.

The boys are swimming across the river.

★特殊疑問(wèn)句：what, which, how, where, who, etc.

疑問(wèn)詞+動(dòng)詞+主語(yǔ)+現(xiàn)在分詞

What are you doing?

What is she doing?

What is the dog doing?

(必背)

沒(méi)有進(jìn)行時(shí)的動(dòng)詞

表示狀態(tài)，思想，感情和感覺(jué)的動(dòng)詞不能表示正在進(jìn)行的動(dòng)作

1. 表示感覺(jué)，感官的詞

see, hear, like, love, want,

2. have, has當(dāng)”擁有”講時(shí)沒(méi)有進(jìn)行時(shí)