AEAS词汇解析：带否定词not的否定句有哪些

　　为了提高参加AEAS考试的同学的英语水平，AEAS培训网特别为同学们带来一些考试技巧。这次AEAS培训网介绍的是带否定词not的否定句。

　　1. 在含系动词be、助动词be, have, has, will, would, shall, should等之后直接加not，构成否定句。如：

　　(1) He is there. — He is not there. 他不在那儿。

　　(2) I have finished my work. — I have not finished my work. 我的工作还没完成。

　　(3) She will agree with you. — She will not agree with you. 她不会同意你的意见。

　　2. 否定含情态动词的句子：

　　a. 在情态动词can, could, may, might, must, need, dare, had better, would rather的句子之后直接加not。如：

　　(1) He can say so. — He can not say so. 它不会那样说。

　　(2) Students must smoke. — Students must not smoke. 学生不允许抽烟。

　　(3) You’d better go there now. —You’d better not go there now. 现在你最好不要去那里。

　　(4) I’d rather tell you the truth. — I’d rather not tell you the truth. 我倒想不告诉你真相。

　　(5) He dared ask his parents for money again. — He dared not ask his parents for money again. 他不敢向父母亲要钱。

　　b. 在含情态动词ought to的句子，在ought to中的to前面加not，构成否定句。如：

　　(1) You ought to bother him. — You ought not to bother him. 你不应该去麻烦他。

　　(2) You ought to waste your time. — You ought not to waste your time. 你不应该把时间浪费了。

　　c. 在含情态动词used to的句子，可在used to中的to前面加not;也可在used前面加 did not，同时将used 改为use。如：

　　(1) He used to smoke in the past . — He used not to smoke in the past. 他过去不常抽烟。

　　(2) He used to live here. — He did not use to live here. 他原来常不住这里。

　　d. 在含情态动词have / has / had to的句子，在have / has / had to前面加do not的适当形式, 同时将has / had 改为have。如：

　　(1) You do have to stay here after school. — You do not have to stay here after school. 你不必放学后还呆在这里。

　　(2) He had to go to work yesterday. — He did not have to go to work yesterday. 他昨天不必去上班。

　　3. 对于不含系动词be、助动词或情态动词的句子，则在谓语动词前加do not的适当形式, 同时将原谓语动词改为原形。如：

　　(1) He likes classic music. — He does not like classic music. 他不喜欢古典音乐。

　　(2) She played table tennis yesterday afternoon. — She did not play table tennis yesterday afternoon. 她昨天下午没有打乒乓球。

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