新概念英語第一冊語法總結(jié)：現(xiàn)在進行時

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

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 not 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?沒有進行時的動詞(必背)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, want2. have, has當(dāng)“擁有”講時沒有進行時