英语中助动词have的用法和例句

英语中助动词have的用法和例句
英语中助动词have的用法和例句

英语中助动词have的用法和例句have作为助动词可以:

1.构成完成时态(have+过去分词):

What has happened?

出了什么事?

He told me Jane had left.

他告诉我简已经走了。

She will have arrived by this time tomorrow. 明天这时她就会到了。

How long have you been there?

你在那里待了多久?

2.构成完成进行时态(have+been+现在分词)

We have been trying to contact you.

我们一直在想和你联系。

She has been teaching there for thirty years.她在那里任教达三十年。

That was the book he had been looking for. 这是他一直在找的书。

另外,have (got)to还可构成谓语,表示“不得不”:We have(got)to be careful.

我们得小心。

You don’t have to worry.

你不必忧虑。

谈谈have作助动词用法

谈谈have作助动词用法 have在现代英语中是用得较多的动词之一。它除了用作实义动词(ordinary verb), 表示topssess (具有),to hold (保持),to experience (经验)等意义外,还大量用作助动词。现就其助动词用法作一简述: 一、帮助构成完成时和完成进行时的各种时态。例如: 1)完成时: He has finished his task. The sun had already set before we arrived at the railway station. He shall have written the article by then. 2) 完成进行时: I have been working as an interpreter for years. He told me that he had been waiting for me even since the morning. 二、帮助构成复合谓语(和不定式动词连用)。 1) have to的用法。具有语气动词的作用,表示必须履行的义务责任(obligation), 或表示客观情况的需要,或必然性,几乎同情态动词must具有同样的意义。例如: I have to go there = I must go there. If you want to catch the first train you have to leave at six. He sees very badly, he has to wear glasses all the time. The children have to play in the streets till their mothers get home from work. In my district there is no gas laid on; people have to use electricity for every thing. be to和have to在意义上是不相同的。试比较下面两个句子: We are to finish our work at five o'clock. We have to finish our work at fine o'clock. 第一句are to finish 表示预定计划;这是大家知道的。第二句“have to finish”表示“必须在什么时候完成”,不管我们愿不愿意。 2) had to的用法。表示在过去时间里客观环境所产生的责任、任务或必然性,可用作 must的过去形式。例如: The buses were all full:I had to get a taxi. She fell ill and had to leave early. I got lost and had to ask a police man the way, When I changed my job, I bad to move to another flat. In October the expedition siled, but it had to make its way against adverse winds. 3)have to, had to常在会话中单独使用,这时不定式动词可不提及,但仍可理解。例 如: Do you have to translate the whole text into Japanese? No, you don't have to. why do you always wear dark glasses? I have to (wear them). My eyes are very sensitive. I didn't want to stop but I had to (stop) as I needed petral (汽油)。 三、have + object + past participle 结构. 1 )可更为简洁地用来表示下列类型句子的说法。例如: I employed someonce to do something for me.

助动词的用法

助动词在英语学习当中作了解,不需要重点把握,但是助动词也是很好理解的,希望回答能够帮到你。 1.助动词:Be 助动词不能作述语动词,要与本动词一起构成动词片语,表示时态、语态等。 1. BE作为本动词表示状态或客观存在等意思。 Your house is bigger and nicer than mine. 你的房子比我的又大又好。 2. BE+不定词连用,表示约定、义务、命令等未来的动作或状态。 I am to go abroad on business tomorrow. 明天我要去外国出公差。 表示未来的安排。 The meeting is to be held as scheduled. 会议将按原计划召开。 表示计划好的安排。 You are not to bark at my friend. 你不许对我的朋友叫。 表示命令或要求。 3. BE+现在分词构成各种进行时态。 Who are you talking to? 你在和谁说话? I am talking to my dog. 我在和我的狗说话。 4. BE+过去分词构成被动语态。 That means I will be promoted as scheduled. 这就意味着我将要按原计划得到提升。 2. dare和used to 作为情态助动词的dare一般只能用于疑问句或否定句中,dare+原形动词表示敢。

I dare not say it is ugly. 我不敢说它丑。 How dare you say so? 你怎么敢这么说? dare也可以作本动词,用于肯定句,后面要接带to的不定词;主词若是第三人称单数,简单现在式时,dare要变为dares。 You, you dare to talk to me like this! 你、你竟敢这样和我讲话! used to+原形动词表示过去的习惯或状态,而现在已经不存在了。 You're not what you used to be. 你不是以前的你了。 used to构成疑问句时有两种形式。即used + 主词+ to + 其他成份?;Did + 主词+ use to+ 其他成份。 How used I to be? 我以前什么样? How did you use to be? 你以前什么样? used to构成否定句时有两种形式,即used not to和didn't use to。 You didn't use to say things like this. You used not to say things like this. 你以前不会说这样的话的。 be used to表示习惯于,其中used是形容词,to是介系词,后接名词、代名词或动名词等,可用于不同的时态。 You're used to hearing words of praise. 你是听好话听惯了。 3. 助动词:Do 1. DO作为助动词时的时态、人称和数的变化与它作为本动词相同,有do, does, did三种形式。 Yes, it seems he doesn't really want to have a haircut.

小学英语语法:助动词do 的用法

小学英语语法: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,增强该动词的语气,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理解到英语的重要性。 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? 助动词do 的用法是我们精心为大家准备的,希望大家能够多加练习,为以后学好英语打下坚实的基础!

(完整版)助动词用法及练习

be动词,情态动词,助动词do/does的用法区别及练习 助动词,顾名思义就是帮助动词完成疑问及否定的,本身没有什么含义。主要的助动词有be,do,will,have等,其用法详述如下: 一、⑴由连系动词am,is,are构成的句子:变一般疑问句时把am,is,are提到句子的前面,句尾用问号即可。变否定句时直接在am,is,are后面加not即可。例如: 肯定句:He is a student. 一般疑问句: Is he a student? 否定句: He is not a student. 画线提问: 对he提问: Who is a student? 对a student 提问: What is he? (2)was 是am,is的过去式,were是are的过去式,若句子中有以上两词时,变疑问句及否定句方法与(1)相同。 二、(1) 由情态动词can, may,will ,shall等构成的句子: 变一般疑问句时把can, may,will ,shall提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句: Can she swim? 否定句: She can not swim. 画线提问: 对she提问: Who can swim? 对swim提问: What can she do? (2)could,might,would,should是can,may,will,shall的过去式,若句子中有以上两词时,变疑问句及否定句方法与(1)相同。 三、(1)由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面. 变否定句时把don’t/doesn’t放在动词的前面。要注意观察动词的形式并对号入座。一般疑问句和否定句的动词三单式都要变回原型。 play-----do plays-----does 例如: 肯定句: They play football after school. He plays football after school. 一般疑问句: Do they play football after school? Does he play football after school? 否定句: They don't (do not) play football after school. He doesn’t’ play football after school. 画线提问: 对they/he提问: Who plays football after school? 对play football提问: What do they do after school? What does he do after school? 对after school提问: When do they play football? When does he play football? (2)did是do和did的过去式,变一般疑问句时把did放在句子前面. 变否定句时把didn’t 放在动词的前面, 要注意观察动词的形式并对号入座。一般疑问句和否定句的动词都要变回原型。

be动词与助动词的用法

be动词与助动词的用法 1.陈述句:be动词第一人称用am,第二人称用are,第三人称单数用is复数用are. 助动词do一般省略,直接用动词,注意动词时态和人称变化.有时在动词前加do,表示强调,加强语气.如:Do be quiet! 2.疑问句:be动词直接提前,其他部分不变(由陈述句转变).助动词do同样,由省略直接提前放置,后面动词不变,注意do的时态和人称变化. 3.否定句:be动词和助动词do后面加not. be作助动词用的形式如下: ①am, is, are, was, were ②助动词+be:shall be, will be, can be, etc. ③have/has/had + been(完成时) ④am, is, …being(进行时) (1)表达进行时态 句型be + V-ing…(进行时态) 例:What are you reading? (你正在阅读什么?) I am reading a magazine. (我正在阅读杂志。) 例:He will be taking a walk in the park at this time tomorrow morning. (明天早晨此时他将会正在公园散步。) 例:She has been teaching English in our school for years. (她已在我们学校教英语许多年了。) 解说第一例句是表达现在进行时,第二例句是将来进行时,第三例句是现在完成进行时。(2)表达被动语态 句型be +p.p. …(被动语态) 例:English is spoken in both Canada and the United States. (加拿大和美国都讲英语。)

助动词have用法

助动词have用法 这篇关于助动词have用法,是笔者特地为大家整理的,希望对大家有所帮助! 助动词have以及它的变体has, had等的主要用法如下: 1. have +过去分词,构成完成时态。如: He has left for Japan. 他已去了日本。 We’ve just done the washing-up. 我们刚洗完碗碟。 Poor Jim has just had an accident. 可怜的吉姆刚出了个事故。 I have had this car for three years. 这辆汽车我已用了3年了。 By the end of last month, they had finished the work. 上月未他们就已经完成了工作。 2. have + been +现在分词,构成完成进行时。如: I have been studying English for 8 years. 我学英语已达八年了。 The children have been having a lot of run. 孩

子们一直玩得很开心。 We had been doing business with each other for years before we quarreled. 在吵翻之前,我们多年来在业务上一直来往。 By this time next year, we will have been doing business with each other for 20 years. 到明年这时候,我们的业务住来就满20年了。 I woke up—I had been having a bad dream. 我醒了,我做了个噩梦。 3. have+been +过去分词,构成完成式被动语态。如: English has been taught in China for many years. 中国教英语已经多年。 I have been made redundant, so I’m going abroad. 我被定成了超编人员,所以我打算出国。 Thousands of pounds have been spent on the new hospital. 这家新医院花费了数千英镑。 None of my friends have been invited to the party. 我的朋友中没有一个被邀参加晚会。 All means have been used to get him to change his mind. 为了转变他的想法,所有的办法都用过了。

助动词的用法

助动词 协助主要动词构成谓语动词词组的词叫助动词(Auxiliary Verb)。被协助的动词称作主要动词(Main Verb)。构成时态和语态。助动词是语法功能词,自身没有词义,不可单独使用,它没有对应的汉译,例如:He doesn't like English. 他不喜欢英语。(does是助动词,无词义;like是主要动词,有词义) 最常用的助动词有:be, have, do, shall, will, should, would 他们表示时态,语态,构成疑问句与否定副词not合用,加强语气助动词半助动词 2 半助动词 功能介绍 在功能上介乎主动词和助动词之间的一类结构,称为半助动词。常见的半助动词有be about to, be due to, be going to, be likely to, be meant to, be obliged to, be supposed to, be willing to, have to, seem to, be unable to, be unwilling to等。......情态助动词 情态助动词1.情态助动词包括will(would), shall(should), can(could), may(might), must, need, dare, ought to, used to, had better后接原形不定词。2.情态助动词不受主语的人称和数的限制。3.两个情态助动词不能连用。中文:他将能够及时完成此事。(误)He will can finish it i...... 3 基本助动词 基本助动词基本助动词只有三个: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。 3)最常用的助动词有:be, have, do, shall, will, should, would 4 具体用法 have的用法 一、have作助动词 形式 主要变化形式:have,has,had 动名词/现在分词:having 1)have +过去分词,构成完成时态,例: He has left for London.他已去了伦敦。

助动词have be do 的用法

助动词have \ be\do 的用法 助动词have的用法 1)have +过去分词,构成完成时态,例如: He has left for London. 他已去了伦敦。 By the end of last month, they had finished half of their work. 上月末为止,他们已经完成工作的一半。 2)have + been +现在分词,构成完成进行时,例如: I have been studying English for ten years. 我一直在学英语,已达十年之久。 3)have+been +过去分词,构成完成式被动语态,例如: English has been taught in China for many years. 中国教英语已经多年。 助动词be的用法 1) be +现在分词,构成进行时态,例如: They are having a meeting. 他们正在开会。 English is becoming more and more important. 英语现在越来越重要。 2) be + 过去分词,构成被动语态,例如: The window was broken by Tom.. 窗户是汤姆打碎的。 English is taught throughout the world. 世界各地都教英语。 3) be + 动词不定式,可表示下列内容: a. 表示最近、未来的计划或安排,例如: He is to go to New York next week.. 他下周要去纽约。 We are to teach the freshpersons. 我们要教新生。 说明:这种用法也可以说成是一种将来时态表达法。 b. 表示命令,例如: You are to explain this. 对此你要做出解释。 He is to come to the office this afternoon. 要他今天下午来办公室。 c. 征求意见,例如: How am I to answer him? 我该怎样答复他? Who is to go there? 谁该去那儿呢? d. 表示相约、商定,例如: We are to meet at the school gate at seven tomorrow morning. 我们明天早晨7点在校门口集合。 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。

小学英语助动词用法归纳

助动词(Auxiliary Verb):协助主要动词构成谓语动词词组的词。自身没有词义,不可单独使用。 主要动词(Main Verb):是被协助的动词,构成时态和语态。 He doesn't like English. 他不喜欢英语。(doesn't是助动词,无词义;like是主要动词,有词义) 最常用的助动词有:be, have, do, shall, will, should, would 等。 基本助动词只有三个:be, do, have 他们没有词汇意义,只有语法作用,如协助构成进行时,完成时,被动态,否定句,疑问句等。 一、be 动词的用法 既可作系动词,又可作助动词,做助动词有人称和数的变化,第一人称用am,第二人称及复数用are,第三人称及单数用is,am,is 过去式

为was, are的过去式为were,它与现在分词构成进行时态和过去分词一起构成被动语态。 a. 表示时态be+doing(现在分词)表示现在进行的动作 He is singing. 他正在唱歌。 b. 表示语态be+done(过去分词)表被动语态 He was sent to England. 他被派往英国。 c. be+to do(动词不定式)表示计划安排命令。 We are to plant trees next week. 下周我们将要去植树。 You are to explain this 。对此你要做出解释。 二、do的用法 Do主要帮助实意动词构成否定和疑问句,后跟动词原形,有时放在实意动词前起强调作用,还可代替前文出现的动词,避免重复。Do 有人称和数的变化,第一、二人称及复数用do,第三人称及单数用does,过去式为did。 1)构成一般疑问句。DO +主语+动词原形+其他 I like singing 变为疑问句为Do you like singing ? 2)do + not 构成否定句。主语+do +not +动词原形。 I do not want to be criticized.我不想挨批评。 He doesn't like to study.他不想学习。 Many students didn’t know the importance of English before.过去好多学生不知道英语的重要性. 3)构成否定祈使句。

助动词do_的用法

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? do 这个词(does是第三人称单数形式),大体上从两方面来讲。 1.作为行为动词,跟其他动词一样,如study, play等。他的意思是“做”等。如: We usually do our homework in the afternoon. He does his homework in the evening. 2.作为助动词,也就是帮助主要动词构成否定和疑问等。 We don't like bananas. Do you like apples? Does he like English? He doesn't like swimming 上面有一句He does his homework in the evening.要是变成否定句就成了这个样子: He doesn't do his homework in the evening. 这里加上了助动词doesn't,而原来的主动词does变成原形do了。 作为助动词的do和does是没有词义的,它们在句中的构成一般现在时的疑问句和否定句. Do用于主语第一人称,第二人称和第三人称复数形式的句中,does用于主语第三人称单数的句中。

Have与 has的用法及区别

Have与has的用法及区别 have与has都是“有”的意思,但二者用法是有区别的. 在陈述句中,当主语是单数第三人称(he、she、it)时,句子的谓语是“有”时,用has;当主语是其他人称(I、you、we、they)时,句子的谓语是“有”时,用have. 例句: I \ You have an apple . We\They have some apples . He\She has a pen . 但是,在疑问句中,当主语是就单数第三人称提问或否定句时用助动词does 和does not (doesn't),然后把has 变成have 如果不是第三人称,助动词就是do ,否定式do not (don't).特殊疑问句回答照样,该是has 还是has 该是have 还是have 但是当一般疑问句以do或does开头的时候,只能回答do don’t 或者does doesn't 例句: Do you have a book yes ,I do /No ,I don't What does a cat have the cat has a , He doesn’t have any coffee. 就是第二种:have本身也可以作为助动词,(作为完成时里的助动词)本身无词义,和do 一样,has 就相当于does 在单三情况下用,主要用于构成各种时态、语态、语气以及否定和疑问结构.(那此时的have还是has就要看具体的人称而定)完成时态是have/had + done (过去分词的形式) I have finished my work, she has finished her work have you finished your work? Has she finished her work?在一般疑问句里回答直接用have/has yes,I have/ No ,I haven't Yes,she has/ No,she hasn't(因为这里have/has是助动词)

【英语】助动词的用法

句子的基本结构:I(主语/名词)run (谓语/动词). 助动词(Auxiliary): a)do/does/did 一般疑问词(does 用于普通时态第三人称单数, did 用于过去时态) b)can 能,可以,会 c)could 能,可以,会(can 的过去式,但是,可以用于任何时态,请求别人时, 够礼貌的用法) d)may 可能,可以,也许,祝愿(请求别人允许做某事时,够礼貌的用法) e)might 可能,可以,也许。(may 的过去式) f)will 将来,将会(will not = won’t) g)would 愿意,想(will的过去式,但是,可以用于任何时态,请求别人时,够礼 貌的用法) h)shall 应该, 计划,打算(用于第一人称) i)should 应该,必须, 需要(可用于所有人称,可以用于任何时态) j)must 一定,应当,必定,必然,很可能。 助动词在句子中的位置: 1.陈述句,助动词在动词前.例:I can run. 2.疑问句,助动词在主语前. 例: Can I run? 3.是动词(am, are, is)在助动词后全改成”be”. 例:He is a good student; He can be a good student. 4.特殊疑问句,疑问副词放句首。 疑问副词: 1.What 问事/物, 例: What can you do? 2.Where 问地方/位置, 例: Where would you do it? 3.Who 问人, 例: Who would you play with? 4.Whose 问谁的物/事, 例:Whose car do you like? 5.Which 问那一个/种, 例:Which one do you prefer, this one or that one? 6.When 问时候, 例: When shall I go home? 7.How 问怎样/状态/多少, 例: How can you do it? How much is it? 8.Why 问原因, 例: Why does he learn English? 疑问副词在句子中是主语时,可以不须要助动词,例: What makes you happy? Who likes my pen now? Whose car runs fast?

助动词do的用法

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? 助动词be的用法 1) be +现在分词,构成进行时态,例如: They are having a meeting. 他们正在开会。 English is becoming more and more important. 英语现在越来越重要。 2) be + 过去分词,构成被动语态,例如: The window was broken by Tom.. 窗户是汤姆打碎的。 English is taught throughout the world. 世界各地都教英语。

助动词用法归纳小学

助动词用法归纳小学 -CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

助动词(Auxiliary Verb):协助主要动词构成谓语动词词组的词。自身没有词义,不可单独使用。 主要动词(Main Verb):是被协助的动词,构成时态和语态。 He doesn't like English. 他不喜欢英语。(doesn't是助动词,无词义;like是主要动词,有词义) 最常用的助动词有:be, have, do, shall, will, should, would 等。 基本助动词只有三个:be, do, have 他们没有词汇意义,只有语法作用,如协助构成进行时,完成时,被动态,否定句,疑问句等。 一、be 动词的用法 既可作系动词,又可作助动词,做助动词有人称和数的变化,第一人称用am,第二人称及复数用are,第三人称及单数用is, am,is 过去

式为was, are的过去式为were,它与现在分词构成进行时态和过去分词一起构成被动语态。 a. 表示时态 be+doing(现在分词)表示现在进行的动作 He is singing. 他正在唱歌。 b. 表示语态 be+done(过去分词)表被动语态 He was sent to England. 他被派往英国。 c. be+to do(动词不定式)表示计划安排命令。 We are to plant trees next week. 下周我们将要去植树。 You are to explain this 。对此你要做出解释。 二、do的用法 Do主要帮助实意动词构成否定和疑问句,后跟动词原形,有时放在实意动词前起强调作用,还可代替前文出现的动词,避免重复。Do 有人称和数的变化,第一、二人称及复数用do,第三人称及单数用does,过去式为did。 1)构成一般疑问句。 DO +主语+动词原形 +其他 I like singing 变为疑问句为 Do you like singing 2)do + not 构成否定句。主语+do +not +动词原形。 I do not want to be criticized.我不想挨批评。 He doesn't like to study.他不想学习。 Many students didn’t know the importance of English before. 过去好多学生不知道英语的重要性.

英语中have的用法

have在中学英语里的用法 一.Have基本用法和与其他词连用 1,起佛定和疑问形式变化,在美国通用助动词do.在美国口语中常用have got 代替have. 2,Look,can’t you see I’ve got teeth ,too, I haven’t any jewelry. 2, have 和一些其他名词连用, 表示; (1)一种活动 We have no classes on Sunday .(上课) They’re gong to have a volleyball match .(举行活动) Are we going to have a meeting this week? (开会 ) We are going to have a talk this afternoon.(听报告 ) (2)表示患病 I have got a headache. I have a bad cold. (3) 发生情况。 I’ve got so many falls that I’m black and blue all over。(跌跤) (4)表示生育。 The queen ant may have tens of thousands of babies in onesummer. 3和一与动词同形的名词连用,表示一个动词(have+a+由动词转化和名词) Are you going to have a swim. I have a long talk with the teacher. 4,have on sth 或have sth on, 表示“戴着” I noticed he had on bedroom slippers. At the ball Mathild had a diamond necklace on. 5,表示“吃”,“喝”。 I wanted to have a cup of tea and some eggs. Does she have lunch at home ? 6,组成复合结构既”have +宾语+宾语补足语(have sb do sth),表示让,叫某人做某事。 The soldier had him stand with his back to his father. (注):否定结构表示“不能让“活从未有人” (2)现在分词作宾语补足语(have sb sth doing),表示让某人做某事。 …the two men had their lights buring all night long……. (3) 过去分词作宾语补足语(have sb sth done), 表示: (1)使(让,请)别人做某事,表示的动作是别人做的. Emperor Qin Shi Huang had all the walls joinde up. he should have news clothes made of this splendid cloth for the coming great procession. (2)遭遇到某事。 House near airports sometimes have their windows broken.

Be动词和助动词的用法区别

1、be动词的用法。 be am / is are 现在时 was were 过去时 单数复数 英语中,be动词选用单数还是复数,要由主语来定,主语是单数,就用单数,反之用复数。 ◆句中含有be动词时: 肯定句:主语+be +其他 否定句:主语+ be + not +其他 一般疑问句: Be +主语+其他+? 特殊疑问句:疑问词(what / who / when / where)+ be +主语+其他+? I am a teacher. You are right. She is 16 years old. My father is at home. The students are playing games. My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be动词用法歌: 我用am,你用are,is 连接他她它。单数名词用is,复数名词全用are。 变疑问,往前提,句末问号莫丢弃;变否定,更容易,be后not莫忘记; 疑问否定任你变,句首大写莫迟疑。 ★ be动词作谓语,它后面一般跟名词、形容词或介词短语。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”,即,我们常说的“主语 + 谓语 + 其他”。①主语为I 或复数名词、代词时: 肯定句: I / We / They / The students +动词原形+其他+。 We watch TV every night. 变否定:主语+don’t +动词原形+其他+。 We don’t watch TV every night. 一般疑问句 Do + 主语 + 动词原形 + 其他 + ? Do you watch TV every night? Yes, we do. / No, we don’t. 特殊疑问句:疑问词 + do + 主语 + 动词原形 + 其他 + ? How often do you watch TV? ②主语为单数名词或代词时: 肯定句:主语 + 动词第三人称单数形式 + 其他 + 。 He watches TV every night. 否定句:主语+ doesn’t+动词原形+其他+。 He doesn’t watch TV every night.

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