含有情态动词的肯定句改为一般疑问句资料课件.ppt

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1、复习：,含有be动词的肯定句改为一般疑问句的方法,一找 二提 三抄 四变,找出be动词,be动词提前,其余照抄,句中人称I 变you my变yoursome变any.变？,含有情态动词的肯定句如何改为一般疑问句？,什么是情态动词？,情态动词表示说话人（或句子的主语）对某一动作或状态的一种感情和态度，本身具有各种意义，但不能单独作谓语，只能和主要动词一起构成谓语。,常见的情态动词有哪些？,can may must will shall should,翻译句子。,我会画画。学生应该努力学习。他必须每天早起。,I can draw.,Students should study hard.,He mu

2、st get up early.,快点观察一下这三个句子有什么特点。,把下面这三个含有情态动词的肯定句改为一般疑问句。,1.I can draw.,2.Students should study hard.,Can you draw?,Yes,I can./No,I cant.,Should students study hard?,Yes,they should./No,they shouldnt.,3.He must get up early.,Must he get up early?,Yes,he must./No,he neednt.,思考：含有情态动词的肯定句改为一般疑问句的方法是

3、什么？,Look and practice.,He can sing.You may go now.I must go to school by bike.,Can he sing?,May you go now?,Must you go to school bike？,Yes,he can./No,he cant.,Yes,I may./No,I cant/mustnt.,Yes,I must/No,I neednt.,I can draw.There is a bird in the tree.You are a nice girl.My father is a teacher.,Can

4、you draw?,Is there a bird in the tree?,Are you a nice girl?,Is your father a teacher?,小挑战：,思考:,Look and learn:,1.I usually have lunch at twelve.Do you usually have lunch at twelve?2.They play football every day.Do they play football every day?3.He gets up at six every day.Does he get up at six every

5、 day?,注意：这三个句子都没有be动词和情态动词，像这类句子，要借助do 和 does来帮忙。记住do和does后面的动词保持原形，主语是第三人称单数的时候就用does,其余的都用do.,通过以上学习可总结陈述句改为一般疑问句的方法有：,一找 二提 三抄 四变 五借,找出be动词、情态动词,把be动词、情态动词提前,其余照抄,句中人称I变youmy变yoursome变any.变问号?,没有be动词、情态动词借do和does来帮忙,助动词do初步讲解,一、助动词（auxiliary verb),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。

6、助动词主要有do，have等。,二.助动词do的基本用法,do有三种形式：原形 现在式第三人称单数 过去式do的基本用法：构成否定句 构成一般疑问句及回答,1.I want to go to Beijing.I don t want to go to Beijing.2.We live in Chongqing.We don t live in Chongqing.3.Lucy and Lily know about China.Lucy and Lily don t know about China.4.Her parents work in a school.Her parents don

7、 t work in a school.,含实义动词的句子怎样变为否定句,如果句子中的动词为_，变否定句时,在_前加_,其余不变。,原形,动词,don t(do not),1.He wants to go to Beijing.He does t want to go to Beijing.2.Peter lives in Chongqing.Peter does t live in Chongqing.3.Lucy knows about China.Lucy does t know about China.4.Her mother works in a school.Her mother

8、does t work in a school.,含实义动词的句子怎样变为否定句,如果句子中的动词为_，变否定句时,在_前加_,然后把动词变为_,其余不变。,第三人称单数形式,动词,does t(does not),原形,1.I want to go to Beijing.Do you want to go to Beijing.2.We live in Chongqing.Do you live in Chongqing.3.Lucy and Lily know about China.Do Lucy and Lily know about China.4.Her parents work

9、in a school.Do her parents work in a school.,含实义动词的句子怎样变为一般疑问句,如果句子中的动词为_，变一般疑问句时,在句首加_,其余不变。,原形,Do,1.He wants to go to Beijing.Does he want to go to Beijing.2.Peter lives in Chongqing.Does Peter live in Chongqing.3.Lucy knows about China.Does Lucy know about China.4.Her mother works in a school.Doe

10、s her mother work in a school.,含实义动词的句子怎样变为一般疑问句,如果句子中的动词为_，变否定句时,在句首加_,然后把动词变为_,其余不变。,第三人称单数形式,Does,原形,含实义动词的句子怎样变否定句,1.如果句子中的动词 为原形，变否定句时，在动词前加don t(do not),其余不变。2.如果句子中的动词为第三人称单数形式，变否定句时，在动词前加does t(does not),然后把动词变为原形，其余不变。注：some-any,dohavewantlivelike,don t dodon t havedon t wantdon t livedon t

11、 like,doesn t dodoesn t havedoesn t wantdoesn t livedoesn t like,doeshaswantsliveslikes,含实义动词的句子怎样变一般疑问句,1.如果句子中的动词 为原形，变一般疑问句时，在句首加Do，其余不变。2.如果句子中的动词为第三人称单数形式，变一般疑问句时，在句首加Does,然后把动词变为原形，其余不变。注：some-any I/we-you my/our-your,dohavewantlivelike,Do do?Do have?Do want?Do live?Do like?,Does do?Does have?

12、Does want?Does live?Does like?,doeshaswantsliveslikes,1.They play games on the playground.They don t play games on the playground.2.Lucy and Lily speak English.Lucy and Lily don t speak English.3.My classmates get up at 7:00.My classmates don t get up at 7:00.4.He walks to school.He doesnt walk to s

13、chool.5.Jane goes to school by bike.Jane doesnt go to school by bike.6.Kangkang helps me study English.Kangkang doesnt help me study English.,1.They play games on the playground.Do they play games on the playground?Yes,they do./No,they dont.2.Lucy and Lily speak English.Do Lucy and Lily speak Englis

14、h?Yes,they do./No,they dont.3.My classmates get up at 7:00.Do your classmates get up at 7:00?Yes,they do./No,they dont.,4.He walks to school.Does he walk to school?Yes,he does./No,he doesn t.5.Jane goes to school by bike.Does Jane go to school by bike?Yes,she does./No,she doesn t.6.Kangkang helps he

15、r study English.Does Kangkang help her study English?Yes,he does./No,he doesn t.,have/has的一般疑问句:,1.)have 的一般疑问句:,Do you have a book?,b.They have many books.(变一般疑问句),Do they have many books?,c.We have many baseballs.(变一般疑问句),Do you have many baseballs?,小结:have的一般疑问句是在句首加上助动词”Do”,注意大小写的转换，其他的不变.（句中的“I

16、”可以变为”you”)注意:“Do”是加上去的，不是原句里面的。,a.I have a book.(变一般疑问句),2.)has 的一般疑问句:a.He has a soccer ball.(变一般疑问句),Does he have a soccer ball?,b.She has a ping-pang bat.(变一般疑问句),Does she a have ping-pang bat?,c.Jane has a tennis racket.(变一般疑问句),Does Jane have a tennis racket?,小结:has的一般疑问句:第一步，是在句首加上助动词”Does”,第

17、二步，将句中的”has“变为”have“，注意大小写的转换，其他的不变.（句中的“I”可以变为”you”)注意:“Does”是加上去的，不是原句里面的。,完成练习四,二.have/has的否定句:,1.)have 的否定句:,I dont have a book.,b.They have many books.(变一般否定句),They dont have many books.,c.We have many baseballs.(变一般否定句),We dont have many baseballs.,小结:have的否定句是在主语和have之间加上助动词”dont”,注意:“dont”是加

18、上去的，不是原句里面的。,a.I have a book.(变一般否定句),2.)has 的否定句:a.He has a soccer ball.(变否定句),He doesnt have a soccer ball.,b.She has a ping-pang bat.(变否定句句),She doesnt have a ping-pang bat.,c.Jane has a tennis racket.(变否定句),Jane doesnt have a tennis racket,小结:has的否定句:第一步，是在主语和has加上助动词”doesnt”,注意:“doesnt”是加上去的，不是

19、原句里面的。第二步，把has还原成have,完成练习五,疑问句及回答,一般疑问句及回答,用yes或no来回答的问句,一般现在时 行为动词的一般疑问句及答语,Do you like swimming?,Yes,I do./No,I dont.,Yes,we do./N o,we dont.,Do they go to school on Saturday?,Yes,they do./No,they dont.,Does Sam get up at seven oclock?,Yes,he does./No,he doesnt.,Does Amy do her homework?,Yes,she

20、does./No,she doesnt.,我发现,第三人称单数助动词用does,其他人称助动词用do.,一般现在时，动词be的一般疑问句及答语,Am I clever?,Yes,you are./No,you arent.,Are you hungry?,Yes,I am./No,Im not.,Is she/he/a nice teacher?,Yes,she/he is./No,she/he isnt.,Is it rainy today?,Yes,it is./No,it isnt,Are we good friends?,Yes,we are./No,we arent.,Yes,you

21、 are./No,you arent.,Are you happy?,Yes,we are./No,we arent.,Are the flowers beautiful?,Yes.they are./No,they arent.,现在进行时的一般疑问句及答语,Are you writing a letter?,Yes,I am./No,Im not.,Is Sam listening to music?,Yes,he is./No,he isnt.,Are they watching TV?,Yes,they are./No,they arent.,一般将来时的一般疑问句及回答,Are yo

22、u going to swim tomorrow?,Yes,I am./No,Im not.,Is she going to make a cake?,Yes,she is./No,she isnt.,Are they going to go by plane?,Yes,they are./No,they arent.,我发现,有be动词的句子，be动词和人称代词的关系，I 用 am，you 用 are,is 跟着he,she,it.We,you,they 都用are.一般疑问句及答语第一人称和第二人称互换。我们可以通过问句开头的单词来进行判断答句中用哪个动词。,动词have/has got的

23、一般疑问句及答语,Have you got an elephant?,Yes,we have./No,we havent.,Yes,I have./No,I havent.,Has Sam got a T-shirt?,Yes,he has./No,he hasnt.,我发现,has 用于第三人称单数，其他人称用have.,Can的一般疑问句及答语,Can you jump far?,Yes,I can./No,I cant.,Can Sam run fast?,Yes,he can./No,he cant.,我发现,Can 没有人称和数的变化,情景一般疑问句及答语,1.Do you want some dumplings?,Yes,please./No,thank you.,2.Can I have some soup?,Yes,you can./Sorry,you cant.,3.Can I come in?,Yes,of couse.,