含有情态动词的肯定句改为一般疑问句课件.ppt

1、复习：复习：含有含有be动词的肯定句改为一般疑问句的方法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含有情态动词的肯定句如何改为一般疑问句？如何改为一般疑问句？什么是情态动词？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，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但不能单独作谓语，只能和主要动词一起构成谓语。语。常见的情态动词有哪些

2、？常见的情态动词有哪些？can may must will shall should翻译句子。1.我会画画。我会画画。2.学生应该努力学习。学生应该努力学习。3.他必须每天早起。他必须每天早起。I can draw.Students should study hard.He must get up early.快点观察一下这三个句子有什么特点。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。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 c

3、an./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什么？思考：含有情态动词的肯定句改为一般疑问句的方法是什么？Look and practice.1.He can sing.2.You may go now.3.I must go to school by bike.Can he sing?May you go

4、 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.1.I can draw.2.There is a bird in the tree.3.You are a nice girl.4.My father is a teacher.Can you draw?Is there a bird in the tree?Are you a nice girl?Is your father a teacher?小挑战：小挑战：思考思考:Look

5、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 day?注意：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

6、学习可总结陈述句改为一般疑问句的方法有：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 找出找出be动词、动词、情态动词情态动词把把be动词、动词、情态动词提前情态动词提前其余照抄其余照抄句中人称句中人称I变变youmy变变yoursome变变any.变问号变问号?没有没有be动动词、情态词、情态动词借动词借do和和does来来帮忙帮忙一、助动词（一、助动词（auxiliary verb)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。助动词主要有do，have等。二二.助动词助动词d

7、odo的基本用法的基本用法 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 t work in a sch

8、ool.含实义动词的句子怎样变为否定句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。原形原形动词动词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 doe

9、s t work in a school.含实义动词的句子怎样变为否定句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。第三人称单数形式第三人称单数形式动词动词does t(does not)原形原形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.

10、Her parents work 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。原形原形Do1.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.H

11、er mother works in a school.Does her mother work in a school.含实义动词的句子怎样变为一般疑问句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。第三人称单数形式第三人称单数形式Does原形原形含实义动词的句子怎样变否定句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-a

12、nydohavewantlivelikedon t dodon t havedon t wantdon t livedon t likedoesn t dodoesn t havedoesn t wantdoesn t livedoesn t likedoeshaswantsliveslikes含实义动词的句子怎样变一般疑问句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-yourdo

13、havewantlivelikeDo do?Do have?Do want?Do live?Do like?Does do?Does have?Does want?Does live?Does like?doeshaswantsliveslikes1.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 cl

14、assmates don t get up at 7:00.4.He walks to school.He doesnt walk to school.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,

15、they dont.2.Lucy and Lily speak English.Do Lucy and Lily speak English?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 g

16、o to school by bike?Yes,she does./No,she doesn t.6.Kangkang helps her study English.Does Kangkang help her study English?Yes,he does./No,he doesn t.have/has的一般疑问句的一般疑问句:1.)have 的一般疑问句的一般疑问句:Do you have a book?b.They have many books.(变一般疑问句变一般疑问句)Do they have many books?c.We have many baseballs.(变一般疑

17、问句变一般疑问句)Do you have many baseballs?小结小结:have的一般疑问句是在句首加上助动词的一般疑问句是在句首加上助动词”Do”,注意大小写的转注意大小写的转换，其他的不变换，其他的不变.（句中的（句中的“I”可以变为可以变为”you”)注意注意:“Do”是加上去的，不是原句里面的。是加上去的，不是原句里面的。a.I have a book.(变一般疑问句变一般疑问句)2.)has 的一般疑问句的一般疑问句:a.He has a soccer ball.(变一般疑问句变一般疑问句)Does he have a soccer ball?b.She has a pin

18、g-pang bat.(变一般疑问句变一般疑问句)Does she a have ping-pang bat?c.Jane has a tennis racket.(变一般疑问句变一般疑问句)Does Jane have a tennis racket?小结小结:has的一般疑问句的一般疑问句:第一步，是在句首加上助动词第一步，是在句首加上助动词”Does”,第二第二步，将句中的步，将句中的”has“变为变为”have“，注意大小写的转换，其他的不变，注意大小写的转换，其他的不变.（句中的（句中的“I”可以变为可以变为”you”)注意注意:“Does”是加上去的，不是原句里面的。是加上去的，不

19、是原句里面的。完成练习四二二.have/has的否定句的否定句:1.)have 的否定句的否定句:I dont have a book.b.They have many books.(变一般否定句变一般否定句)They dont have many books.c.We have many baseballs.(变一般否定句变一般否定句)We dont have many baseballs.小结小结:have的否定句是在的否定句是在主语主语和和have之间之间加上助动词加上助动词”dont”,注意注意:“dont”是加上去的，不是原句里面的。是加上去的，不是原句里面的。a.I have a

20、book.(变一般否定句变一般否定句)2.)has 的否定句的否定句:a.He has a soccer ball.(变变否定句否定句)He doesnt have a soccer ball.b.She has a ping-pang bat.(变变否定句否定句句句)She doesnt have a ping-pang bat.c.Jane has a tennis racket.(变变否定句否定句)Jane doesnt have a tennis racket小结小结:has的的否定句否定句:第一步，是第一步，是在在主语主语和和has加上助动词加上助动词”doesnt”,注意注意:“d

21、oesnt”是加上去的，不是原句里面的。是加上去的，不是原句里面的。第二步，把第二步，把has还原成还原成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

22、 her homework?Yes,she 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 aren

23、t.Yes,you 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 you go

24、ing 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的一般疑问句及答语Hav

25、e 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.祝您成功！