小学涉及到的助动词主要是do,以及它的两种时态:does和did。 例:Does he work in the factory? 他是在这个工厂工作吗? Do you have a pen? 你有一支钢笔吗? He didn’t go to school yesterday. 他昨天没有去上学。 助动词do 的用法: 1)构成一般疑问句,例如: Do you want to pass the CET? 你想通过大学英语测试吗? Did you study German? 你们学过德语吗? 2) do + not 构成否定句,例如: I do not want to be criticized. 我不想挨批评。 He doesn't like to study. 他不想学习。 In the past, many students did not know the importance of English. 过去,好多学生不知道英语的重要性。 3)构成否定祈使句,例如: Don't go there. 不要去那里。 Don't be so absent-minded. 不要这么心不在焉。 说明: 构成否定祈使句只用do,不用did和does。 4)放在动词原形前,加强该动词的语气,例如: Do come to my birthday party. 一定来参加我的生日宴会。 I did go there. 我确实去那儿了。 I do miss you. 我确实想你。 5) 用于倒装句,例如: Never did I hear of such a thing. 我从未听说过这样的事情。 Only when we begin our college life do we realize the importance of English. 只有在开始大学生活时我们才认识到英语的重要性。 说明: 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。 6)用作代动词,例如: ---- Do you like Beijing? --你喜欢北京吗? ---- Yes, I do. --是的,喜欢。(do用作代动词,代替like Beijing.) He knows how to drive a car, doesn't he? 他知道如何开车,对吧?
基本助动词: be, do, have, 他们没有词汇意义,只有语法作用,如协助构成进行体,完成体,被动态,否定句,疑问句等。 例如 He is giving a lecture. 他在作报告 He has made a plan. 他已经订了计划 The small animals are kept in the cages. 小动物都关在笼子里。
助动词协助主要动词完成以下功用: a. 表示时态,例如: He is singing. 他在唱歌。 He has got married. 他已结婚。 b. 表示语态,例如: He was sent to England. 他被派往英国。 c. 构成疑问句,例如: Do you like college life? 你喜欢大学生活吗? Did you study English before you came here? 你来这儿之前学过英语吗? d. 与否定副词not合用,构成否定句,例如: I don't like him. 我不喜欢他。 e. 加强语气,例如: Do come to the party tomorrow evening. 明天晚上一定来参加晚会。 He did know that. 他的确知道那件事。
考点名称:否定句
否定句: 表示否定的句子。必须有否定词。 否定句的构成形式: a. 谓语为be动词时,“be+not "一名学生。 b. 谓语为实义动词而且没有情态动词和助动词时,“do/ does/ did+not"构成否定。 例:I do not like dancing. 我不喜欢跳舞。 He does not want to go to school. 他不想去上学。 c. 谓语为“情态动词+实义动词”时,“情态动词+not”构成否定。 例:You must not smoke. 你千万不要吸烟。 I can not catch it. 我抓不住它。
否定句在英语语法中可以分为九类: (1)一般否定句 I don't know this. No news is good news. There is no person(smoking)/not a person/not any person(smoking)in the house. (2)特指否定 He went to his office, not to see him. I am sorry for not coming on time. I don't think/believe/suppose/feel/imagine you are right. (3)部分否定 All the answers are not right All is not gold that glitters I don't know all of them. I can't see everybody/everything. Both of them are not right. (4)全体否定 None of my friends smoke. I can see nothing/nobody. Neither of them is right. Nothing can be so simple as this. (5)延续否定 You didn't see him, neither/nor did I. You don't know, I don't know either. He doesn't know English, let alone/to say nothing of/not to speak of(更不用说)French. (6)半否定句 We seldom/hardly/scarcely/barely hear such fine singing. I know little English. I saw few people. (7)双重否定 You can't make something out of nothing. What's done cannot be undone. There is no sweet without sweat. No gain without pains. I can't help /keep/ laughing whenever I hear it. No man is so old but(that)he can learn. (8)排除否定 Everyone is ready except you. He did nothing but play. But for your help, I couldn't do it. (9)加强否定 I won't do it at all. I can't see it any more. He is no longer a boy.
否定转移的形式与用法: 一、动词的否定转移 1.形式上否定主句的谓语,实际上是否定从句的谓语 当动词“think”、“believe”、“suppose”、“imagine”、“expect”、“feel”的主语是第一人称,谓语动词为没有任何副词修饰的一般现在时,它们的否定式实际上是对宾语从句的否定。 表示说话者提出一种委婉的看法或主张。如: I think that he will help us.——I don’t think that he will help us. 我认为它不会帮助我们。 I believe that he is right.——I don’t believe that he is right. 我认为他不对。 I suppose that he likes it.——I don’t suppose that he likes it. 我想他不喜欢它。
2. 形式上否定谓语动词,实际上否定复合宾语 当动词“think”、“believe”、“suppose”、“imagine”、“expect”、“feel”、“find”的主语是第一人称,谓语动词为没有任何副词修饰的一般现在时,它们前面的否定式实际上是对复合宾语的否定。表示说话者所提出的一种委婉的看法或主张。如: I think math difficult. — I don’t think math difficult. 我认为数学不难。 I find the story interesting. — I don’t find the story interesting. 我认为这个故事没有趣。 I expect so. —I don’t expect so. 我认为不会。
二、动词“think”、“believe”、“suppose”、“imagine”、“expect”、“feel”在下列情况下,否定不转移: 1.这些动词跟其他另一个动词一起做并列谓语时,否定不转移。如: I believe and hope he won’t do that. 我相信并且也希望他将不会那样做。 I feel and admit that we are not foolish. 我觉得并且也承认我们并不愚蠢。
2.用于疑问句时,否定不转移。如: Do you think it is not going to rain? 你认为天不会下雨吗? Don’t you believe that he has done a good thing? 难道你不相信他做了一件好事?
3.用作插入语时,否定不转移。如: Li Lei, I think, won’t be angry with you. 我想李蕾不会生你的气。 Tom, I suppose, won’t be against it. 我猜想汤姆不会反对。 Mike, I believe, hasn’t seen the film. 我认为迈克没有看这场电影。
4.动词前有其他副词修饰时,否定不转移。如: I really don’t think it’s necessary for us to go there now. 我的确不认为我们有必要去那儿。 I feel strongly that he shouldn’t do such a thing. 我强烈地认为他不应该做那样的事。
5.动词为非一般现在时或主语不是第一人称时,否定不转移。 I thought that he wouldn’t come back soon. 我原以为他不会回来得这么快。 She didn’t believe that he became a good boy. 她不相信它变成了一个好孩子。 He thinks that he isn’t fit for the job. 他认为他不适合这件工作。 He doesn’t believe that what we told him is true. 他不相信我们告诉他的事是真的。
6.当宾语从句中含的否定为“not……at all”、“not a little”、“not a few”、“not enough”、“can’t help”等固定搭配时,否定不转移。如: I think that he doesn’t know it at all. 我想他对那一点也不知道。 I suppose that it is not enough to remember the words if you want to learn the language well. 我认为如果你想把这门语言学好,那么只记单词是不够的。 I believe that you can’t help singing our national anthem when you win the first place in the Olympic Games. 我相信当你在奥运会上获得第一名时你会情不自禁地唱起国歌来。
7.当宾语从句中含“no”、“nothing”、“nobody”、“nowhere”、“hardly”、“seldom”、“little”、“few”等否定词或半否词时,否定不转移。如: I believe that nothing can make me give it up. 我想任何事情也不能使我放弃。 I think that no one can escape if the ship sinks in the sea. 我认为如果这艘船沉入海底的话,那么谁也逃不掉。 I suppose that he is a man of few words. 我猜想他是一个言语不多的人。