含有情态动词的肯定句改为一般疑问句实用教案

1、含有含有(hn yu)情态动词情态动词的肯定句如何改为一般的肯定句如何改为一般疑问句？疑问句？第1页/共38页第一页，共39页。什么什么(shn me)是情态是情态动词？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，本身作或状态的一种感情和态度，本身(bnshn)具有具有各种意义，但不能单独作谓语，只能和主要动词各种意义，但不能单独作谓语，只能和主要动词一起构成谓语。一起构成谓语。第2页/共38页第二页，共39页。常见的情态动词常见的情态动词(dngc)有哪些？有哪些？can may must will shall shou

2、ld第3页/共38页第三页，共39页。翻译(fny)句子。1. 我会画画。我会画画。2. 学生学生(xu sheng)应该努力学习。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 .快点观察快点观察(gunch)一下这三个句子有什一下这三个句子有什么特点。么特点。第4页/共38页第四页，共39页。把下面这三个含有情态(qngti)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?

3、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思考：含有情态动词的肯定句改为一般疑问句的方法(fngf)是什么？是什么？第5页/共38页第五页，共39页。Look and practice.1.He can sing. 2. You may go now.3. I must go

4、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.第6页/共38页第六页，共39页。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 th

5、e tree?Are you a nice girl? Is your father a teacher?小挑战小挑战(tio zhn)：思考思考(sko):第7页/共38页第七页，共39页。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 ev

6、ery day?注意：这三个句子都没有注意：这三个句子都没有be动词和情态动动词和情态动词，像这类句子，要借助词，像这类句子，要借助do 和和 does来来帮忙。记住帮忙。记住do和和does后面的动词保持原后面的动词保持原形形(yunxng)，主语是第三人称单数的，主语是第三人称单数的时候就用时候就用does,其余的都用其余的都用do.第8页/共38页第八页，共39页。通过以上学习可总结(zngji)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(dngc)、情态动词情态动词(dngc)把把be动词动词(dngc)、情态动词情态动词(dngc)提前提前其余照

7、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来来帮忙帮忙第9页/共38页第九页，共39页。第10页/共38页第十页，共39页。一、助动词（一、助动词（auxiliary verb)auxiliary verb) 在英语中，助动词本身没有(mi yu)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。第11页/共38页第十一页，共39页。二二. . 助动词助动词dodo的基本的基本(jbn)(jbn)用法用法 do有三种形式： 原形 现在式

8、第三人称单数 过去式do的基本用法： 构成否定句 构成一般(ybn)疑问句及回答第12页/共38页第十二页，共39页。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

9、a school.含实义动词的句子含实义动词的句子(j zi)怎样变为否定怎样变为否定句句如果句子中的动词(dngc)为_，变否定句时,在_前加_,其余不变。原形原形(yunxng)动词动词don t (do not)第13页/共38页第十三页，共39页。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

10、China.4. Her mother works in a school. Her mother does t work in a school.含实义动词的句子含实义动词的句子(j zi)怎样变为否怎样变为否定句定句如果句子中的动词为_，变否定句时,在_前加_,然后(rnhu)把动词变为_,其余不变。第三人称第三人称(d sn rn chn)单数形式单数形式动词动词does t (does not)原形原形第14页/共38页第十四页，共39页。1. I want to go to Beijing. Do you want to go to Beijing.2. We live in Cho

11、ngqing. Do you live in Chongqing.3. Lucy and Lily know about China. Do Lucy and Lily know about China.4. Her parents work in a school. Do her parents work in a school.含实义动词的句子怎样含实义动词的句子怎样(znyng)变为变为一般疑问句一般疑问句如果句子中的动词(dngc)为_，变一般疑问句时,在句首加_,其余不变。原形原形(yunxng)Do第15页/共38页第十五页，共39页。1. He wants to go to Be

12、ijing. 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. Does her mother work in a school.含实义动词含实义动词(dngc)的句子怎样变为的句子怎样变为一般疑问句一般疑问句如果句子中的动词(dngc)为_，变否定句时,在句首加_,然后把动词(dngc)变为_,其

13、余不变。第三人称第三人称(d sn rn chn)单数形式单数形式Does原形原形第16页/共38页第十六页，共39页。含实义动词含实义动词(dngc)的句子怎样的句子怎样变否定句变否定句1.如果句子中的动词(dngc) 为原形，变否定句时，在动词(dngc)前加don t (do not),其余不变。2.如果句子中的动词(dngc)为第三人称单数形式，变否定句时，在动词(dngc)前加does t (does not),然后把动词(dngc)变为原形，其余不变。注：some - anydohavewantlivelikedon t dodon t havedon t wantdon t li

14、vedon t likedoesn t dodoesn t havedoesn t wantdoesn t livedoesn t likedoeshaswantsliveslikes第17页/共38页第十七页，共39页。含实义动词的句子含实义动词的句子(j zi)怎样变一般疑怎样变一般疑问句问句1.如果(rgu)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(rgu)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 - yourdohavewantliveli

15、keDo do?Do have?Do want?Do live?Do like?Does do?Does have?Does want?Does live?Does like?doeshaswantsliveslikes第18页/共38页第十八页，共39页。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

16、7:00. My classmates 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.第19页/共38页第十九页，共39页。1. They play games on the playground. Do they play ga

17、mes on the playground? Yes, they do. / No, 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.第20页/共38页第二十页，共39页。4. He walks to school. Does he walk

18、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 her study English. Does Kangkang help her study English? Yes, he does. / No, he doesn t.第21页/共38页第二十一页，共39页。have/has的一般的一般(ybn)疑问疑问句句:1.)have 的

19、一般的一般(ybn)疑问句疑问句:Do you have a book ?b. They have many books . (变一般变一般(ybn)疑问句疑问句)Do they have many books ?c. We have many baseballs . (变一般疑问句变一般疑问句)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” ,注意大小写的转换，注意大小写的转换，其他的不变其他的不变.（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

20、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)第22页/共38页第二十二页，共39页。2.)has 的一般的一般(ybn)疑问句疑问句:a. He has a soccer ball .(变一般变一般(ybn)疑问疑问句句)Does he have a soccer ball ?b. She has a ping-pang bat . (变一般变一般(ybn)疑问句疑问句)Does she a have ping-pang bat ?c. Jane has a tennis racket . (变一般变一般(ybn)疑问句疑问句)Does

21、 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” ,第二步，第二步，将句中的将句中的”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，不是原句里面的。完成练习四第23页/共38页第二十三页，共39页。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. T

22、hey have many books . (变一般变一般(ybn)否定句否定句)They dont have many books .c. We have many baseballs . (变一般变一般(ybn)否定句否定句)We dont have many baseballs .小结小结: have的否定句是在主语和的否定句是在主语和have之间加上助动词之间加上助动词 ”dont” , 注意注意(zh y): “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 book .(变一般否定句变一般否定句)第24页/共38页第二十四页，共39页。2

23、.)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 . (变否定变否定(fudng)句句句句)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的否定句的否定句:第一步，是在主语和第一步，是在主语和has加上助动词加上助动词 ”doesnt” , 注注意意(zh

24、y): “doesnt” 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(wn chng)练习五第25页/共38页第二十五页，共39页。疑问句及回答疑问句及回答(hud)第26页/共38页第二十六页，共39页。一般(ybn)疑问句及回答用yes或no来回答(hud)的问句第27页/共38页第二十七页，共39页。一般现在(xinzi)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 scho

25、ol on Saturday?Yes, they do./ No, they dont.第28页/共38页第二十八页，共39页。Does Sam get up at seven oclock?Yes, he does. / No, he doesnt.Does Amy do her homework ?Yes, she does./ No, she doesnt.我发现(fxin)第三人称(d sn rn chn)单数助动词用does, 其他人称助动词用do.第29页/共38页第二十九页，共39页。一般现在时，动词(dngc)be的一般疑问句及答语Am I clever?Yes, you ar

26、e . / 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第30页/共38页第三十页，共39页。 Are we good friends?Yes, we are ./ No, we arent.Yes, you are ./No, you arent.Are you happy?Yes,we are./No, we ar

27、ent.Are the flowers beautiful?Yes. they are ./ No,they arent.第31页/共38页第三十一页，共39页。现在进行时的一般(ybn)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.第32页/共38页第三十二页，共39页。一般(ybn)将来时的一般(ybn)疑问句及回答Are you 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.第33页/共38页第三十三页，共39页。我发现(fxin) 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