动词think后的从句一定要否定前移吗？云南省昭通市威信县第二中学杨天喜（657900）在人教版高中英语必修三（p18）有这么一个句子：I don’t think it’s very funny.大家都知道，这是一个典型的否定前移的句子。

在宾语从句中，若主句谓语动词是think, believe, suppose, expect, guess, fancy, feel, imagine等表示心理活动的动词时，宾语从句不能用否定形式，若宾语从句是否定句式，则常将否定词not前移到主句谓语动词前面，从而形成“形式上否定主句，实际上否定宾语从句”的现象，这种语法现象叫做否定前移。

但是必须注意的是：这种特殊句型的主语一定是第一人称I或者we，若是第二三人称代词（不论单复数）做句子主语，便不能形成否定前移。

如：I don’t think he will come this afternoon.我认为他今天下午不会来。

What a pity! I don’t believe I know you. 很遗憾，我并不认识你。

I don’t guess that they have got married. 我猜他们还没有结婚。

I don’t expect they have finished the work.我料想他们还没有完成工作。

I don’t suppose he will return to his hometown after a few years of study abroad.我看他在国外学习几年后不会回家乡了。

I don’t feel you should go.我觉得你不应该去。

I didn’t imagine that Tom would help her.我猜想汤姆不会帮助她。

任何语法规则都有例外，如果属于下列情况，则不进行否定前移：1．主句中的谓语动词若与情态动词或者副词连用时，不否定前移。

如：I can’t believe that they are married.我真不敢相信他们结婚了。

We can’t believe that he turns an honest penny.我们不能相信他是用正当手段挣钱。

I mustn’t think he’s an honest person.我一定不会认为他是一个诚实的人。

I didn’t eve r suppose that they were happy. 我并不认为他们是幸福的。

We really think he is not fit for his office. 我们真的认为他不适合这项工作。

I sometimes think she doesn’t work hard. 我有事认为他学习不努力。

I can’t believe that they are married. 我不会相信他们结婚了。

I think you ought not to walk at night alone, Mrs. Moore.摩尔夫人，我认为你晚上不应该独自一人出来。

I sometimes think he is not an honest man.我有时认为她并不诚实。

2．当think用在疑问句中构成双重疑问句时，不用否定迁移。

如：Why do you think I can’t change your note?你为什么认为我换不开你的钞票呢？Do you think he can’t come here tomorrow? 你认为他明天不能来这儿吗？Why do you think I can’t do it? 你为什么认为我不会做它呢?Do you think my father won’t agree? 你认为我父亲不会同意吗?3．当think前有强调词do/does/did表强调时，不用否定前移。

如：I do think he is not married. 我一定认为他还没有结婚。

We do think you should not stay up late. 我们的确认为你不应该熬夜那么晚的。

I do think you shouldn’t hurt her.我的确认为你不该伤害她。

4．当I think, I believe等被看作插入语成分、和其他部分无关时不用否定前移。

如：She, I think, was not telling the truth. 她，我认为，并没有说出事情的真相。

Mary, I believe, is not a good student. 玛丽，我想，并不是一个好学生。

I wish you were here, then, I think, I should not feel like this. 但愿你那时在这儿就好了，（可）我想，我不应该有这样想法。

5. 宾语从句中若有固定短语，如can’t help doing sth, not…at all, not only…but also…, not just (only)... but （also），just not... enough，cannot …to…, cannot but, not at all, not…but…等时，不进行否定前移。

如：I think everybody can’t help laughing if they see it.我认为，人们看到时会禁不住大笑。

I think she is not only beautiful but also kind. 我认为，她不仅漂亮，而且善良。

I think you cannot praise her too highly. 我热内你无论如何表扬她都不过分。

I think he is not at all tired. 我想他一点也不累。

I guess there isn’t enough food for our lunch. 我想我们午饭没有足够的吃的了。

6. 宾语从句中若有just not enough, not quite, not much等以not中心的表达法连用时，不进行否定前移。

如：I think she’s not much like her mother.我觉得，她不怎么像她的母亲。

I think you don’t quite know me. 我想你不大认识我。

I think I have not enough money to buy a house of my own. 我想我们没有足够的钱来买属于我们自己的房子。

I think I’m just not smart enough to make any sense of you.But I think that Elizabeth was not quite so certain of it as I.7. 动词think本身有其他词修饰或与其他动词一道构成并列谓语时，不进行否定前移。

如：I think and hope that I’m not disturbing you so much.我认为，也希望，我不太打扰你。

I think and hope that you should not take the side of him. 我认为，也希望你不应该支持他。

8. 动词think以过去时、完成时等时态出现时，不进行否定前移。

如：I was thinking that he wouldn’t succeed.我在想他不会成功。

I thought you didn’t marry her.我原以为你不会与她结婚。

I had thought he wouldn’t come.我愿意为他不会来呢。

I have often thought one shouldn’t only think of himself.9. 当宾语从句中有no，never, hardly, seldom, little, few, nothing ,nobody, no one等否定词时, 不进行否定前移。

如：I believe John never tells a lie.我相信约翰从不撒谎。

I think Jim can hardly ride a bike.我认为吉姆几乎不会骑自行车。

I thought it explained nothing.高考真题体验：1.（2008山东卷, 24）Thank you for all your hard work last week. I don’t think we ____ it without you.A. can manageB. could have managedC. could manageD. can have managed2. I don't suppose anyone will volunteer,__?A. do IB. don't IC. will theyD. won't they3. I ____ I_____ you before.A. think; haven’t seenB. didn’t think; have seenC. didn’t think; didn’t seeD. thought; not see4. She _____ that we ____ anything.A. didn’t imagine；would sayB. don’t imagine; sayC. doesn’t imagine; would sayD. would imagine; would say（Keys: 1. B 2. C 3.B 4.C）think后的宾语从句否定不转移的八种情况think等动词在使用时的否定转移是英语中很特殊的语法现象。

也就是，根据英语习惯用法，think后的宾语从句若是否定句，则需要将否定转至主句的think上。

例如：将“我认为他不对。

”习惯上译为：I don't think he is right. 而I think he is not right.往往被看成不符合英语语法的表达习惯，是错误的。

但在下列情况下，think 后面的宾语从句的否定不可进行否定转移。

一、think是如下的两种时态时，宾语从句的否定不可进行转移。

1.think是完成时态或完成进行时态时。

例如：I have been thinking we should not have anything to do with a person like him.我一直在想，我们不应当与像他那样的人有任何往来。