現(xiàn)在進行時

表示現(xiàn)在正在進行的動作。

構(gòu)成： 主語+be動詞+動詞的現(xiàn)在分詞+其它成分(現(xiàn)在分詞的構(gòu)成見附錄)

We are having lunch.

He is reading a book.

The dog is running after a cat.

The boys are swimming across the river.

★變疑問句將be動詞移到句首

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.

★特殊疑問句：what, which, how, where, who, etc.

疑問詞+動詞+主語+現(xiàn)在分詞

What are you doing?

What is she doing?

What is the dog doing?

(必背)

沒有進行時的動詞

表示狀態(tài)，思想，感情和感覺的動詞不能表示正在進行的動作

1. 表示感覺，感官的詞

see, hear, like, love, want,

2. have, has當”擁有”講時沒有進行時