新概念英語第一冊語法總結(jié)內(nèi)容摘錄片段：

一． 時態(tài)：
一般現(xiàn)在時，現(xiàn)在進(jìn)行時，一般過去時，現(xiàn)在完成時，一般將來時，過去進(jìn)行時，過去
完成時，過去將來時
1. 一般現(xiàn)在時
表示一般性，經(jīng)常性的動作或一般性事實(shí)。
?? 含有be 動詞的句子
He is a teacher.
The girl is very beautiful.
Tim and Jack are students.
★變疑問句將be 動詞移到句首
Is he a teacher?
Is the girl very beautiful?
Are Tim and Jack students?
★變否定句在be 動詞后面加not
He is not a teacher.
The girl is not very beautiful.
Tim and Jack are not students.
★肯定回答及否定回答
Yes, he is. No, he is not.
Yes, she is. No, she is not.
Yes, they are. No, they are not.

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