助动词do的用法
助动词do的用法
助动词do没有词义，起到帮助实义动词的作用，作谓语最常见的是do, does, did三种形式。
1. 现在式do
（1）肯定式： do 否定式： do not 缩略否定式: don’t
You speak English. 你说英语。
一般疑问句： Do you speak English? 你说英语吗？
特殊疑问句:What language do you speak?
I like this red hat. 我喜欢这顶红色的帽子。
否定句：I don’t like this red hat. 我不喜欢这顶红色的帽子。
一般疑问句：Do you like this red hat? 你喜欢这顶红色的帽子吗？
Yes, I do./ No, I don’t.
特殊疑问句：Which hat do you like? 你喜欢哪一顶帽子？
Don't go there. 不要去那里。
Don't be shy 不要害羞。
说明：构成否定祈使句只用do，不用did和does。
补充：do做实义动词
When I get home, I always do my homework first. 回家时，我总是先做家庭作业。
He does the homework.
Do it yourself. 自己动手做DIY
2. 现在式第三人称单数does
What does he look like?Is he short or tall?
He is really tall.
He likes playing basketball.
否定句： He doesn’t like playing basketball.
一般疑问句及回答: Does he like playing basketball. ?
Yes, he does./ No, he doesn’t.
特殊疑问句: Which dress does she like?
She likes that red dress.
否定句： She doesn’t like that red dress.
一般疑问句及回答: Does she like that red dress?
Yes, she does./ No, she doesn’t.
特殊疑问句: Which dress does she like?
He likes oranges and apples.
否定句：
一般疑问句及回答:
特殊疑问句：
I like oranges.
否定句：
一般疑问句及回答:
特殊疑问句：
3. 过去式
肯定式： did 否定式：did not 缩写：didn’t
I went to school yesterday.
否定句： I didn’t go to school yesterday.
一般疑问句及回答: Did you go to school yesterday?
Yes, I did./ No, I didn’t.
特殊疑问句: When did you go to school?
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do和does专题练习(附答案)
助动词do/does的用法专题 助动词do与does口诀 （一）(do ) 变句型，先观察，陈述句中动用原, 一般疑问do提前，否定don’t实动前。 （二）(does) 若是主语为三单，陈述句中动变形，一般疑问也简单， does放在句子前，否定doesn’t实动前，主动出现动还原。 总结： 含有实义动词的句子，进行句子转换时应借助于助动词do/does，主语是三单(he,she,it)时用does，其他用do。否定句在动词原形前加don’t /doesn’t，一般疑问句把do/does 提前,特殊疑问句由特殊疑问词+一般疑问句。 句子类型及结构 肯定句：主语+动词+其它。主语是三单，动词用三单 I like this blue sweater. Tom likes this blue sweater. 我喜欢这件蓝色的毛衣。Tom喜欢这件蓝色的毛衣。 Tom likes English. Tom喜欢英语。 I like this blue sweater. Tom likes English. 否定句：主+ don’t/doesn’t+动原+其它 I don’t like this blue sweater. 我不喜欢这件蓝色的毛衣。 Tom doesn’t like English. Tom不喜欢英语。 I like this blue sweater. Tom likes English. 一般疑问句：do/does提前，其它照抄不变（Do /Does+主+动原+其它），一人称变二人称。回答：Yes,主+do/does. No,主+ don’t/doesn’t. Do you like this blue sweaterYes, I do. / No, I don’t. 你喜欢这件蓝色的毛衣吗是的，我喜欢; 不，我不喜欢。 Does Tom like EnglishYes,he does. / doesn’t. Tom喜欢英语吗是的，他喜欢；不，他不喜欢。
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。
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。
do和does用法区别
归纳起来, do ,does 的用法有四方面: 一.用作一般的动词,均可.do是一不规则变化的动词(do ,did,done). do,据人称和单复数的不同而有字形的变化.第一第二人称,以及第一.二.三 人称的复数时,都用do . 第三人称单数时,用does( he does she does it does ) 例如: I do my homework on Sunday. You do your homework on Sunday. We do our homework on Sunday. You do your homework on Sunday. They do their homeworkon Sunday. He does his homework on Sunday. She does her homework on Sunday. 二.当助动词用,用它来构成疑问句.这时它本身没有实义,只是一个构成疑问句的符号而已.这种用法时,它随人称和数的变化规则与上述相同.只是把它放到句子的最前面(句首).例如: Do I ............... Do you ............. Do we .............. Do you ............. Do they ............ Does he ............ Does she ........... Does it ............ 三.当助动词用,与not 连用使句子构成否定句.其随人称和数的变化规则与上述相同.例如:
I do not .................. (do not 可简化为don't ,下同) You do not ................ We do not.................. You do not................. They do not................ He does not................ (does 可简化为doesn't,下同) She does not............... 四.当作助动词,本身在句子中无实义,只是加强句子中动词的语气.其随人称和数的变化同上.例如: Do write to me.(一定写信给我!) Never do I see such a fool.(我从来没见过这样的蠢才.) She does come.(她的确来了.) * * * * * * 按词性, do 还可以用作名词.其意是"欺骗";"宴会,宴请".例如: It's all a do.(完全是欺骗.) We have got a do on to-night.(家里今晚请客.)
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。
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。
小学be动词的用法及助动词 do.
1. 由连系 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. 反问句 : He is a student, isn't he? He isn't a student, is he? 画线提问 : 对 he 提问 : Who is a student? 对 a student 提问 : What is he? or What does he do? 2. 由情态动词 can, may, should等构成的句子 : 变一般疑问句时把 can,may, 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. 反问句 : She can swim, can't she? She can not swim, can she? 画线提问 : 对 she 提问 : Who can swim? 对 swim 提问 : What can she do?
3. 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 . 例如 : 肯定句 : They play football after school. 一般疑问句 : Do they play football after school? 否定句 : They don't (do not play football after school. 反问句 : They play football after school, don't they? They don't play football after school, do they? 画线提问 : 对 they 提问 : Who play football after school? 对 play football提问 : What do they do after school? 对 after school提问 : When do they play football? 1. 由连系 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. 反问句 : He is a student, isn't he? He isn't a student, is he? 画线提问 : 对 he 提问 : Who is a student? 对 a student 提问 : What is he? or What does he do?
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)
小学be动词的用法及助动词_do
苏打水1. 由连系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. 反问句: He is a student, isn't he? He isn't a student, is he? 画线提问: 对he提问: Who is a student? 对a student 提问: What is he? or What does he do? 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,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. 反问句: She can swim, can't she? She can not swim, can she? 画线提问: 对she提问: Who can swim? 对swim提问: What can she do? 3. 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. 例如: 肯定句: They play football after school. 一般疑问句: Do they play football after school? 否定句: They don't (do not) play football after school. 反问句: They play football after school, don't they? They don't play football after school, do they? 画线提问: 对they提问: Who play football after school?
助动词dodoesdid和be动词amisare用法的区别
助动词do \ does \ did 和be动词am \ is \ are 用法的区别 助动词do \ does \ did do是原形，用于一般现在时态中的第一二人称和第三人称的复数（I,you,we,they）；does是do的第三人称单数形式，用于一般现在时态的第三人称单数（he,she,it，姓名）；did是do的过去式，用于一般过去时态的任何人称（I,you,he,she,it,we,they）。 不管怎样，跟在这三个词后面的动词都必须为动词原形。 do \ does \ did+ V.（动词原形） 例如： Do you like meat\ bananas\fish\apples? No,I don`t. Does he like apples? No,he doesn`t. He does like apples. like就是原形 Where did he go yesterday? 他昨天哪儿了？ Did you study English? 你们学过英语吗？ 系动词（be动词）am \ is \ are be是系动词,又称be动词,包括am、is、are三个。 am用于第一人称单数；(I) 第三人称单数用is；(he\she\it) 其他人称全部都用are。(we \they\ you\ 、、、) was （am \ is 的过去式）wasn’t were（are 的过去式）weren’t 练习题： ______she like drinking? ________they play football? ______she beautiful? ________your dog walk in the zoo? ______she come from China? He ________ like pears. ______she from China? _______ your cats eat fish? ______ he watch TV at night? _______ you go to school everyday? ______ we have a good teacher? I ________ have a watch. ______you a student? , .（否定回答） There ______ many boats on the lake. Children ______ happy yesterday. Amy ______ hungry yesterday. ______ they young then? ______ he tall then? , .（否定回答） ______ it sunny? , .（否定回答） ______ it windy yesterday ______ Beijing? , .（否定回答）______ she ______ ______ zoo then? , .（否定回答） 1 / 1
英语中be动词用法和助动词---do
英语中be动词用法和助动词---do 1. 由连系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. 反问句: He is a student, isn't he? He isn't a student, is he? 画线提问: 对he提问: Who is a student? 对a student 提问: What is he? or What does he do? 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,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. 反问句: She can swim, can't she? She can not swim, can she? 画线提问: 对she提问: Who can swim? 对swim提问: What can she do? 3. 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. 例如: 肯定句: They play football after school. 一般疑问句: Do they play football after school? 否定句: They don't (do not) play football after school. 反问句: They play football after school, don't they?
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.