Do_的四种用法

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Do、To do、Doing 的用法

Do、To do、Doing 的用法

Do/To do/Doing 的用法1.+ to do=+ doing:开始做某事begin to do/doing =start to do / doing 不喜欢dislike to do / doing 憎恨做某事hate to do/ doing喜欢做某事like / love to do / doing2.+ to do≠+ doing:忘记去做某事forget to do忘记已经做过某事forget doing记住去做某事(未做)remember to do记得已经做过某事remember doing 继续另一件事go on to do继续做原来的事go on doing 停下来去做某事stop to do 停止做某事stop doing 努力做某事try to do试着做某事try doing悔恨没做某事regret to do 后悔已做某事regret doing3.+ do帮助做某事help (to) do宁愿(不)做某事would rather (not) do最好(不)做某事had better (not) do4.+ doing:完成做某事finish doing喜欢做某事enjoy doing一直做某事keep doing练习做某事practise doing考虑做某事consider doing坚持做某事insist on / upon doing避免做某事avoid doing建议做某事suggest doing错过做某事miss doing想象做某事imagine doing介意做某事mind doing忍不住做某事can’t help doing坚持做某事keep on/ carry on doing成功做某事succeed/ be successful in doing 忙于做某事be busy (in) doing…怎么样? What /How about doing?对做某事感兴趣be interested in doing 因某事谢谢某人thank you for doing(非常)值得被…be (well) worth doing因为…because of doing而不是instead of doing(没)有做某事without/ with doing通过做某事by doing sth担心做某事worry about doing害怕做某事be afraid of doing放弃做某事give up doing做某事有麻烦have trouble / problems /difficulty (in) doing做某事开心have fun/ a good time/enjoy oneself (in) doing浪费时间做某事lose/waste time (in) doing sth 将某人的精力投入到…put one’s effort into doing 某人花费时/钱做某事sb spend +时间/钱(in) doing梦想做某事dream of/about doing5.+to do :选择做某事choose to do拒绝做某事refuse to do需要做某事need to do=require to do迫不及待做某事can’t wait to do准备做某事prepare to do=be ready to do 计划做某事plan to do决定做某事decide to do = make a decision to do = make up one’s mind(s) to do学习learn to do继续做某事continue to do付得起做某事afford to do 似乎做某事seem to do过去常常做某事used to do敢做某事dare to do梦见做某事dream to do碰巧做某事happen to do想做某事would like to do = want to do 别无选择做某事have no choice but to do 同意做某事agree to do希望做某事hope to do希望做某事wish to do不得不做某事have to do做某事失败fail to do答应做某事promise to do逐步做某事get to do更喜欢做某事prefer to do设法做某事manage to do应该做某事ought to do主动做某事offer to do尽某人最大努力做某事try/ do one’s best to do 采取措施做某事take action(s)/steps to do 等着轮到某人做某事wait for one’s turn to do轮流做某事take one’s turn to do有机会做某事have a chance to do没有时间做某事have no time to do与…比起来宁愿做某事prefer to do rather than do =would rather do than do足够…做某事enough+n.+ to do ,adj./adv.+enough+ to do为了… to do = in order to do= so as to do=for doing6.to doing :盼望做某事look forward to doing 习惯于做某事be used to doing 致力于做某事devote …to doing 与…比起来宁愿做某事prefer doing to doing 对…做出贡献make contribution(s) to doing 导致lead to donig7. sb to do :命令某人做某事order sb to do答应某人做某事promise sb to do邀请某人做某事invite sb to do警告某人(不)做某事warn sb (not) to do请求某人(不)做某事ask sb (not ) to do吩咐某人(不)做某事tell sb (not) to do想要某人(不)做某事would like sb(not) to do 需要某人做某事need /require sb (not) to do 鼓励某人做某事encourage sb to do使用某人做某事use sth to do教某人做某事teach sb to do 导致某人做某事cause sb to do训练某人做某事train sb to do建议某人做某事advise sb to do允许某人做某事allow sb to do希望某人做某事wish sb to do让某人做木事get sb to do提醒某人做某事remind sb to do拒绝某人做某事refuse sb to do迫使某人做某事force sb to do (agree sb to do是错的,hope sb to do 是错的)8.sb doing:使某人一直做某事keep sb doing sth 介意某人做某事mind sb/ sb’s doing 阻止某人做某事prevent /stop sb (from )doing = keep sb from doing 发现某人正在做某事find sb doing9.sb do/doing看见某人做某事see sb do/ doing 观看某人做某事watch sb do/ doing 听见某人做某事hear sb do/ doing 注意某人做某事notice sb do/ doing(句中有表示时点的词用doing, 有表示频度和感情的词用do)10.sb do:使某人做某事make sb do 让某人做某事let/have sb do帮助某人做某事help sb do = help sb to do11.关于to do/doing/do的句型(1)做某事花费某人…It takes /took+sb+ 时间+ to do (2)做某事对某人而言是…的It’s + adj. for sb/ of sb to do (3)做某事对某人而言是一个遗憾It’s a pity for sb to do(4)是某人第一次做某事It’s one’s first time to do(5)到了(某人)做某事的时候了。

助动词do_的用法

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。

do,does,did的用法

do,does,did的用法

do,does,did的用法一、介绍英语中有一些常见的动词,如do、does和did,它们在不同的句子中扮演着重要的角色。

本文将详细介绍这三个词的用法,帮助读者正确理解和运用它们。

二、Do的用法1. 作为实义动词使用Do作为实义动词时,表示进行、执行或完成某项活动或任务。

例如:- I have to do my homework tonight.(今晚我必须做作业。

)- She does the cleaning every day.(她每天做打扫工作。

)2. 作为情态动词使用Do还可以作为情态动词,用于疑问句、否定句或强调句中,并且在这些情况下不需要加上其他的助动词。

例如:- Do you like ice cream?(你喜欢冰淇淋吗?)- He doesn't speak French.(他不会说法语。

)- I did go to the party!(我确实去了派对!)3. 用于表示替代在口语中,do还可以用来替代前面提到过的动词,避免重复出现。

例如:- "Did you wash the dishes?" "No, I didn't do them."("你洗盘子了吗?" "没有,我没有洗。

")三、Does的用法1. 作为第三人称单数现在时的助动词Does作为助动词用于构成第三人称单数现在时的陈述句。

例如:- She does yoga every morning.(她每天早上练瑜伽。

)2. 用于一般疑问句和否定句在一般疑问句和否定句中,does通常出现在句首,并且不再需要其他助动词。

例如:- Does he play the guitar?(他会弹吉他吗?)- She doesn't like coffee.(她不喜欢咖啡。

)四、Did的用法1. 作为过去时态的助动词Did通常用于构成过去时态的陈述句或疑问句,而且不再需要其他助动词。

Do_的四种用法.docx

Do_的四种用法.docx

助动词的用法、助动词do 的用法在英语中,助动词本身没有意义,只是帮助实义动词完成某些语法功能,如构成否定句、疑问句、简略答语等。

do 有两种形式原形现在时第三人称单数do 的基本用法:构成否定句构成一般疑问句及回答构成特殊疑问句1. 原形肯定式:do否定式:do not缩略否定式: don 't用法:do用在第一人称单复数(l,we…)、第二人称单复数(you…)和第三人称复数(they…)做主语,且时态为一般现在时的句子中,构成否定句、一般疑问句及回答、特殊疑问句。

Examples:l like this red hat. 我喜欢这顶红色的帽子。

否定句:我不喜欢这顶红色的帽子。

l don 't like this red hat.一般疑问句及回答: 你喜欢这顶红色的帽子吗?是的,我喜欢。

/不,我不喜欢。

Do you like this red hat?Yes, l do./ No, l don 't.特殊疑问句: 你喜欢哪一顶帽子?Which hat do you like?Lily and l want to go to Beijing.莉莉和我想去北京。

否定句:Lily and I don't want to go to Beijing. 莉莉和我不想去北京。

一般疑问句及回答:Do Lily and you want to go to Beijing?Yes, we do. ∕ No, we don't.莉莉和你想去北京吗?是的,我们想去。

/不,我们不想去。

特殊疑问句:Where do Lily and you want to go?莉莉和你想去哪儿?练习:1、我不喜欢狗。

I don't like dogs.2、你喜欢什么颜色?What color do you like?3、你有词典吗?是的,我有。

Do you have a dictionary?Yes, I do.2. 现在式第三人称单数肯定式:does否定式:does not缩略否定式:doesn't用法:does 用在第三人称单数做主语,且时态为一般现在时的句子中注意:当does 出现时,句子中用动词原形。

do的用法

do的用法

动词三单变化规则与练习
• 1.一般情况下,直接加-s,如:playplays, walk-walks 2.以s, x, ch, sh及部分o结尾,加 -es,如:pass-passes,fix—fixes, wash-washes, watch-watches, gogoes,do-does 3.以“辅音字母+y”结尾,去y为i, 再加-es,如:study-studies • fly-flies
do 的用法
• 1)做行为动词用 “做” do morning exercises 做早操 do some shopping 购物 2)做助动词,本身无解释。帮助行为动 词构成疑问或否定结构 I don't do housework. 我不做家务。 Do you do housework? 你做家务吗? Does he like English? 他喜欢英语吗? She doesn't like English. 他不喜欢英语。
将下列句子改成否定句
• 1. I like peaches.
I don't like peaches.
• 2. You want some beef.
You don't want some beef.
• 3. We watch TV every day.
We don't watch TV every day.
写出下列动词的三单数形式
• 1. work_____ 2. watch_________ works watches 3. clean________ clean • 4. write_______ 5. teach_______ s writes teache 6. wash__________ s washe • 7. have_______ 8.read________ s has reads 9. go__________ goes • 10. do__________ 11. fly________ does flies 12. study_______ studies watch • 13.Shewatches (watch) TV. ---------14.I ------ (watch) TV

Do_的四种用法教学资料

Do_的四种用法教学资料

D o_的四种用法助动词的用法一、助动词do的用法在英语中,助动词本身没有意义,只是帮助实义动词完成某些语法功能,如构成否定句、疑问句、简略答语等。

do 有两种形式原形现在时第三人称单数do的基本用法:构成否定句构成一般疑问句及回答构成特殊疑问句1.原形肯定式: do否定式: do not缩略否定式: don’t用法:do用在第一人称单复数(I,we…)、第二人称单复数(you…)和第三人称复数(they…)做主语,且时态为一般现在时的句子中,构成否定句、一般疑问句及回答、特殊疑问句。

Examples:I like this red hat. 我喜欢这顶红色的帽子。

否定句:我不喜欢这顶红色的帽子。

I don’t like this red hat.一般疑问句及回答:你喜欢这顶红色的帽子吗?是的,我喜欢。

∕不,我不喜欢。

Do you like this red hat?Yes, I do./ No, I don’t.特殊疑问句: 你喜欢哪一顶帽子?Which hat do you like? Lily and I want to go to Beijing.莉莉和我想去北京。

否定句: Lily and I don't want to go to Beijing.莉莉和我不想去北京。

一般疑问句及回答:Do Lily and you want to go to Beijing?Yes, we do. ∕No, we don't.莉莉和你想去北京吗?是的,我们想去。

∕不,我们不想去。

特殊疑问句:Where do Lily and you want to go?莉莉和你想去哪儿?练习:1、我不喜欢狗。

Idon't like dogs.2、你喜欢什么颜色?What color do you like?3、你有词典吗?是的,我有。

Do you have a dictionary?Yes, I do.2.现在式第三人称单数肯定式: does否定式: does not缩略否定式:doesn’t用法:does用在第三人称单数做主语,且时态为一般现在时的句子中。

Do_的四种用法

Do_的四种用法

一、助动词do的用法在英语中,助动词本身没有意义,只是帮助实义动词完成某些语法功能,如构成否定句、疑问句、简略答语等。

do 有两种形式原形现在时第三人称单数do的基本用法:构成否定句构成一般疑问句及回答构成特殊疑问句1.原形肯定式: do否定式: do not缩略否定式: don’t用法:do用在第一人称单复数(I,we…)、第二人称单复数(you…)和第三人称复数(they…)做主语,且时态为一般现在时的句子中,构成否定句、一般疑问句及回答、特殊疑问句。

Examples:I like this red hat. 我喜欢这顶红色的帽子。

否定句:我不喜欢这顶红色的帽子。

I don’t like this red hat.一般疑问句及回答:你喜欢这顶红色的帽子吗?是的,我喜欢。

∕不,我不喜欢。

Do you like this red hat?Yes, I do./ No, I don’t.特殊疑问句: 你喜欢哪一顶帽子?Which hat do you like?Lily and I want to go to Beijing.莉莉和我想去北京。

否定句: Lily and I don't want to go to Beijing.莉莉和我不想去北京。

一般疑问句及回答:Do Lily and you want to go to Beijing?Yes, we do. ∕No, we don't.莉莉和你想去北京吗?是的,我们想去。

∕不,我们不想去。

特殊疑问句:Where do Lily and you want to go?莉莉和你想去哪儿?练习:1、我不喜欢狗。

Idon't like dogs.2、你喜欢什么颜色?What color do you like?3、你有词典吗?是的,我有。

Do you have a dictionary?Yes, I do.2.现在式第三人称单数肯定式: does否定式: does not缩略否定式:doesn’t用法:does用在第三人称单数做主语,且时态为一般现在时的句子中。

六年级英语Do 和Does的用法

六年级英语Do 和Does的用法

六年级英语D o和D o e s的用法-CAL-FENGHAI.-(YICAI)-Company One1Do 和Does的用法作为助动词的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。

三单用does,复数用do●询问动物是否喜欢什么句型:Do snakes like music? 【复数,用do提问,they答】肯定回答: Yes, they do.否定回答: No, they don’t.Does snake like music? 【单数,用does提问,it答】肯定回答: Yes, it do.否定回答: No, it don’t.●询问别人是否经常干某事句型:Do you often…你经常干什么吗?回答:Yes, I do/ No, I don’t.例:Do you often play games 你经常玩游戏吗Yes, I do/ No, I don’t.●询问别人是否想要干某事句型:Do you want to +动词原形? 你想干什么吗?肯定回答:Yes, I(we) do/ Yes, please.否定回答:No, I (we) don’t/ No, thank you例:Do you want to drink a coffee 你想喝一杯咖啡吗Yes, I(we) do/ Yes, please.No, I (we) don’t/ No, thank you练习题:1.What__you need for breakfast Some milk and an egg.2.I__want any juice.I want some milk.3.Do Ben and you like vegetablesNo,we___.4.How__they go to school?By underground.5.__your friend have lessons every day?No,he__.6.What__your father doHe's a shop assistant.7.Tom,__make a noise in class,please.8.Kitty__do her homework at school.She___it at home.三将下列句子改为否定句和一般疑问句1.I do my homework at home.否定句:一般疑问句:2.We have a picnic on Sundays.否定句:一般疑问句:3.Ben rides his bicycle at four o'clock.否定句:一般疑问句:4.Kitty goes to bed at half past nine.否定句:一般疑问句:5.Jane's father gets up at quarter past six every morning.否定句:一般疑问句:。

助动词dodoes的用法 小学

助动词dodoes的用法 小学

助动词dodoes的用法小学助动词 do/does 的用法小学小朋友们,今天我们要来学习英语中非常重要的助动词 do 和 does 的用法。

这两个词虽然看起来简单,但是用对它们可不那么容易哦!让我们一起来探索一下吧。

首先,我们要知道 do 和 does 是用来帮助构成疑问句和否定句的。

那什么时候用 do ,什么时候用 does 呢?当主语是第一人称 I 、第二人称 you ,还有复数形式的 we 、they 以及其他复数名词时,我们要用 do 。

比如说:I do my homework every day(我每天做作业。

)You do a good job(你做得很好。

)We do sports in the morning(我们早上做运动。

)They do like apples(他们确实喜欢苹果。

)而当主语是第三人称单数,像 he 、she 、it 或者是单个的人名,比如 Tom 、Lucy 等时,我们就要用 does 啦。

例如:He does his homework carefully(他认真做作业。

)She does well in math(她数学学得好。

)It does not rain today(今天没下雨。

)Tom does not like football(汤姆不喜欢足球。

)接下来,我们看看 do 和 does 是怎么帮助构成疑问句的。

如果句子的主语是 I 、you 、we 、they 或者复数名词,我们就在句首加上 do ,然后把句中的动词变回原形。

比如:Do you like ice cream? (你喜欢冰淇淋吗?)Do they play football on Sundays? (他们星期天踢足球吗?)要是句子的主语是 he 、she 、it 或者单个的人名,那就在句首加上does ,同样要把句中的动词变回原形。

像:Does she go to school by bike? (她骑自行车上学吗?)Does Tom have a pen? (汤姆有一支钢笔吗?)再说说否定句。

Do用法

Do用法

do用于一二人称,does用于第三人称。

但是用法是一样的。

[解题过程] 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。

小学英语语法:do的4种用法解析

小学英语语法:do的4种用法解析

小学英语语法:do的4种用法解析英语语法对很多小学生来说是个难点。

今天,学习方法网小编为大家整理了英语语法do的用法,一起来看看!动词do在句中的用法可以概述为四句十二字:“做”实义,助动词,替前文,强语气。

用法一:实义dodo作实义动词时,有do, does, did, done, doing五种形式,还有及物、不及物之分。

如:1. vt. “做;研究;整理;完成”。

如:①The old man does an hour of sport every day.②She did her homework at home last night.③Mother was doing the cooking when I reached home.④Have you done the exercises yet?2. vi. “行动;工作;进展;足够”。

如:①Kate does very well in her Chinese.②How do you do?③Well done!④That will do.用法二:助动dodo作助动词时,只有do, does, did三种形式,无词义,限用于含行为动词的一般现在时和一般过去时两种时态的否定句和疑问句中。

如:①They don't have any tickets for tonight's concert.②Kate stayed at home last night, didn't she?③How many books does the library have?④She doesn't do the washing in the evening.用法三:替代do为避免动词的重复,使语言简练,常以do, does, did替代前文所用的行为动词。

Do 的四作用

Do 的四作用

Do 的四作用动词do在句中的作用可以概述为四句十二字:"做"实义,助动词,替前文,强语气。

作用一:实义do do作实义动词时,有do, does, did, done, doing五种形式,还有及物、不及物之分。

如: 1. vt. "做;研究;整理;完成"。

如: ①The old man does an hour of sport every day. ②She did her homework at home last night. ③Mother was doing the cooking when I reached home. ④Have you done the exercises yet? 2. vi. "行动;工作;进展;足够"。

如: ①Kate does very well in her Chinese. ②How do you do? ③Well done! ④That will do. 作用二:助动do do作助动词时,只有do, does, did三种形式,无词义,限用于含行为动词的一般现在时和一般过去时两种时态的否定句和疑问句中。

如: ①They don't have any tickets for tonight's concert. ②Kate stayed at home last night, didn't she? ③How many books does the library have? ④She doesn't do the washing in the evening. 作用三:替代do 为避免动词的重复,使语言简练,常以do, does, did替代前文所用的行为动词。

如: ①Tom runs much faster than you do. ②-Lucy, can you get some more tea, please? -Sure. I'll do it right away. ②-Who broke the cup? -Mimi did. ③-I like bananas. -So does he. 作用四:语气do 为突出感情色彩,do常用于祈使句、强调句和倒装句中,以加强语气。

助动词do的用法

助动词do的用法

肯定式:
does
否定式:
does not
缩略否定式: doesn’t
特殊疑问句:
Which dress does she like?
47% Option 4
一般疑问句及回答:
Does she like that red dress?
Yes, she does./ No, she doesn’t.
Beijing.
特殊疑问句: Where did they want to go?
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原形
单击此处添加标题
肯定式:
do
否定式:
do not
缩略否定式: don’t
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I/we/you/they do...
Examples: I like this red hat. 我喜欢这顶红色的帽子。
一般疑问句及回答:你喜欢这顶红色的帽子吗? 是的,我喜欢。∕不,我不喜欢。 Do you like this red hat? Yes, I do./ No, I don’t.
30% Option 3
23% Option 1
56% Option 2
Examples:
She likes that red dress.
否定句:
She doesn’t like that red dress.
3.过去式
肯定式: did 否定式: did not 缩略否定式: didn’t
用法:did用在时态为一般 过去时的句子中, 用于所有 人称。

的?
是色
?颜.
吗么狗
典什欢
词欢喜
你 I我 喜不
三 二 一练
...

do的用法

do的用法

do这个实词在不同句型中:(一)一般现在时(do/does):1.动词原形(用到助动词do)肯定句I do my homework….否定句I don’t do my homework…(don’t+动词原形)一般疑问句Do you do your…? (Do+动词原形)2.三单(用到助动词does)肯定句Peter does his homework…否定句Peter doesn’t do his …(doesn’t+动词原形)一般疑问句Does Peter do his …? (Does+动词原形)(二)一般过去时(did):1. 只有一种did,用到助动词did(1) 肯定句I did my homework…否定句I didn’t do my …. (didn’t +动词原形)一般疑问句Did you do your…? (Did + 动词原形)肯定否定一般疑问回答have don’t have Do…have Yes, …do. / No, …don’t. has doesn’t have Does…have Yes,…does./No,…doesn’t. had didn’t have Did…have Yes,…did. / No,…didn’t. 肯定句Ben had lunch at home yesterday.否定句Ben didn’t have lunch…一般疑问句,两种回答Did Ben have lunch…? Yes, he did./No, he didn’t.练一练:用所给单词的适当形式填空:1.It was Sunday. We __________ (be) at home.We___________ (want) to play games.We_____________(not do) our homework.2.Grandma ____________(enjoy) the quiet music whenshe was young.3.The Smiths ___________(be) in the zoo yesterdaymorning. They ____________ (have) a good time.4.Mr Wang _____________(watch) TV every evening. Helikes _____________(watch) TV news.5.Ben __________(like) singing, but now he___________(like) reading.答案:1. were wanted didn’t do2. enjoyed3. were had4. watches watching5. liked likes。

do的用法

do的用法

do的用法思路分析]do用于一二人称,does用于第三人称。

但是用法是一样的。

[解题过程]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?---- Y es, I do. --是的,喜欢。

助动词do的用法

助动词do的用法
用法:does用在第三人称单数做主语, 且时态为一般现在时的句子中。
注意:当does出现时,句子中用动词 原形。
Examples: 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.
是的,我喜欢。∕不,我不喜欢。 Do you like this red hat? Yes, I do./ No, I don’t. 特殊疑问句: 你喜欢哪一顶帽子? Which hat do you like?
Lily and I want to go to Beijing. 莉莉和我想去北京。 否定句: Lily and I don't want to go to Beijing. 莉莉和我不想去北京。 一般疑问句及回答: Do Lily and you want to go to Beijing? Yes, we do. ∕No, we don't. 莉莉和你想去北京吗? 是的,我们想去。∕不,我们不想去。 特殊疑问句:Where do Lily and you want to go?
莉莉和你想去哪儿?
练习
1、我不喜欢狗。 Idon't like dogs.
2、你喜欢什么颜色? What color do you like?
3、你有词典吗?是的,我有。 Do you have a dictionary? Yes, I do.
2.现在式第三人称单数
肯定式: does 否定式: does not 缩略否定式: doesn’t
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助动词的用法
一、助动词do的用法
在英语中,助动词本身没有意义,只是帮助实义动词完成某些语法功能,如构成否定句、疑问句、简略答语等。

do 有两种形式
原形
现在时第三人称单数
do的基本用法:
构成否定句
构成一般疑问句及回答
构成特殊疑问句
1.原形
肯定式: do
否定式: do not
缩略否定式: don’t
用法:do用在第一人称单复数(I,we…)、第二人称单复数(you…)和第三人称复数(they…)做主语,且时态为一般现在时的句子中,构成否定句、一般疑问句及回答、特殊疑问句。

Examples:
I like this red hat. 我喜欢这顶红色的帽子。

否定句:我不喜欢这顶红色的帽子。

I don’t like this red hat.
一般疑问句及回答:你喜欢这顶红色的帽子吗?
是的,我喜欢。

∕不,我不喜欢。

Do you like this red hat?
Yes, I do./ No, I don’t.
特殊疑问句: 你喜欢哪一顶帽子?Which hat do you like?
Lily and I want to go to Beijing.
莉莉和我想去北京。

否定句: Lily and I don't want to go to Beijing.
莉莉和我不想去北京。

一般疑问句及回答:
Do Lily and you want to go to Beijing?
Yes, we do. ∕No, we don't.
莉莉和你想去北京吗?
是的,我们想去。

∕不,我们不想去。

特殊疑问句:Where do Lily and you want to go?
莉莉和你想去哪儿?
练习:1、我不喜欢狗。

Idon't like dogs.
2、你喜欢什么颜色?
What color do you like?
3、你有词典吗?是的,我有。

Do you have a dictionary?
Yes, I do.
2.现在式第三人称单数
肯定式: does
否定式: does not
缩略否定式:doesn’t
用法:does用在第三人称单数做主语,且时态为一般现在时的句子中。

注意:当does出现时,句子中用动词原形。

Examples:
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?
课堂练习:
__Alice have a ruler?
Yes, she __ No, she__
Your mother has a nice sweater.(对画线部分进行提问)
What __your mother __?
二、Have 的用法
Do you have a ping-pong bat ?
你有一个乒乓球拍吗?
这是一个一般现在时的一般疑问句,句中的谓语动词have是一个实义动词。

在英语中,句子的谓语动词如果是实义动词,常借助于助动词来提问,主语是第三人称单数的句子用does,其他情况用do。

do和does在这里没有实际意义,只用来帮助构成一般疑问句。

其基本句式为:
Do/Does +主语+动词原形+....?
I have a basketball.
Do you have a basketball ?
He knows Li Ming.
Does he know Li Ming ?
肯定回答:Yes ,主语(代词)+do /does.
否定回答:No,主语(代词) +don't/doesn't
当主语是第一人称/第二人称/第三人称复数时,
句型结构为:Do + you/they/we/… + 动词原形+ …?
不管用什么动词,它的回答是固定的。

肯定回答:Yes, I do./ Yes, we do. / Yes, they do.
否定回答:No, I don’t /we don’t. /No, they don’t.
Do they like basketball? 他们喜欢打篮球吗?
Yes, they do. 是的,他们喜欢。

No, they don’t不,他们不喜欢。

2. 当主语为第三人称单数时,句子结构改为:Does + he / she / it … + 动词原形+ …?
肯定回答:Yes, he does./Yes, she does./Yes, it does.
否定回答:No, he doesn’t./No, she doesn’t /No, it doesn’t.
Does Jane have a new book? 简有一本新书吗?
— Yes, she does. 是的,她有。

—No, she doesn’t. 不,她没有。

一般现在时态中have的用法
1.Do you have a ping--pong bat ?Yes,I do.
2.Does he have a soccer ball ?Yes,he does.
3.I don't have a soccer ball.
have 有表示所属关系,有人称和数的变化,主语有时也可以是物。

1.have用于复数名词,第一、第二人称单复数或第三人称复数代词作主语的句子中
has 为have的第三人称单数形式,用于不可数名词、可数名词单数或第三人称单数代词作主语的句子中。

People have their own rooms.
Jack has three pens.
2.have /has 作谓语时的句型转换
(1)否定句:主语+don't/doesn't +have ...
I don't have an eraser.
He doesn't have a tennis racket.
(2) 一般疑问句式:
Do/Does + 主语 + have ...?
Do you have a bike ?
Yes,I do /No,I don't.
Does he have a soccer ?
Yes,he does./No,he doesn't.
3)当have/has后的名词被some修饰时,在否定句和疑问句中some要改成any。

I have some good friends.
I don't have any good friends.
课堂练习:
she __ a volleyball.
I ____(not have) a basketball. Jack ____(not have) a tennic bat.。

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