中考英語考點分析 肯定句變否定句

　　誤：I think she isn’t there.

　　正：I don’t think she is there.

　　析：英語中think, believe, expect, suppose等表示信念和揣測的動詞，后接that從句時，習慣上將從句中的否定形式轉(zhuǎn)移到主句上，即否定主句謂語，不否定從句謂語。

　　2. He can sing this song and that one.

　　誤：He cannot sing this song and that one.

　　正；He cannot sing this song or that one.

　　析：肯定句中的連詞and在否定句中一般要改為or。

　　3. Tom went to school too.

　　誤：Tom didn’t go to school too.

　　正：Tom didn’t go to school either.

　　析：too和also用于肯定句中時，否定句中用either替換。

　　4. He has had supper already.

　　誤：He hasn’t had supper already.

　　正：He hasn’t had supper yet.

　　析：隨著對謂語動詞的否定，某些副詞也要作相應(yīng)的變動。

　　5. He had a good rest just now.

　　誤：He hadn’t a good rest just now.

　　正：He didn’t have a good rest just now.

　　析：have在表示開會、吃飯、休息、進行體育鍛煉等詞組中是行為動詞，否定句用助動詞來完成。

　　6. Let’s do it.

　　誤：Let’s don’t do it.

　　正：Don’t let’s do it.或Let’s not do it.

　　析：let后接的是不帶to的不定式，變?yōu)榉穸ㄊ剑�直接在句首前加Don’t或在不定式前加not。