2020年小学英语语法课件：陈述句变一般疑问句.pptx

1、2020年小学英语语法课件：陈述句变一般疑问句中文解释什么是一般疑问句中文解释什么是一般疑问句1.你吃饭了吗？你吃饭了吗？肯定回答：肯定回答：2.他睡觉了吗？他睡觉了吗？否定回答：否定回答：3.他们吃苹果吗？他们吃苹果吗？肯定回答：肯定回答：4.你今天有课外作业吗？你今天有课外作业吗？肯定回答：肯定回答：5.你玩的开心吗？你玩的开心吗？否定回答：否定回答：6.我能吃冰激凌吗？我能吃冰激凌吗？肯定回答：肯定回答：是的，我吃了是的，我吃了不，他没睡不，他没睡是的，他们吃是的，他们吃是的，我有是的，我有不，我不开心不，我不开心是的，你能是的，你能 如果有人问你，你今年是九岁吗，你会怎么回答？你一定会

2、说，是或者不是。这种只回答“是”或者“不是”的问句，在英语就叫做一般疑问句。一般疑问句 陈述句变一般疑问句，要分几种情况？1 1）含）含有有am,isam,is,are(beare(be动词）动词）2 2）含有情态动词）含有情态动词can,will,must,shouldcan,will,must,should3 3）没有）没有bebe动词和情态动词的动词和情态动词的1 1）含）含有有am,isam,is,areare的陈述句变的陈述句变 一一般疑问句般疑问句肯定句It is a bag.一般疑问句Is it a bag?That is a pen.Is that a pen?Jim is s

3、ix.Is Jim six?Yes,it is.No,it isnt.肯定回答肯定回答否定回答否定回答 Yes,it is.No,it isnt.肯定回答肯定回答否定回答否定回答 Yes,he is.No,he isnt.肯定回答肯定回答否定回答否定回答肯定句They are kind.一般疑问句Are they kind?I am happy.Are you happy?We are friends.Are you friend?肯定回答：肯定回答：否定回答：否定回答：Yes,they are.No,they arent.Yes,I am.No,I am not.Yes,we are.No,

4、we arent.口诀：一提二换三照抄口诀：一提二换三照抄一提一提：将：将be动动词提词提到句到句首；首；二换：将第一人称换成第二人称；二换：将第一人称换成第二人称；三照抄：陈述句剩下的都照抄三照抄：陈述句剩下的都照抄1.I am from Canada._ _ from Canada?肯定回答：肯定回答：_,_否定回答：否定回答：_,_2.She is looking for her dog._ she _ for her dog?肯定回答：肯定回答：_,_否定回答：否定回答：_,_Are youYes I amNo I m notIslookingYes she isNo she isnt

5、肯定句一般疑问句肯回，否回1.I am tall._2.We are strong._3.This is a ship._4.Sam is a dog._5.Jim and Mary are sad.Yes,I am.No,I am not.Are you tall?Are you strong?Yes,we are.No,we arent.Is this a ship?Yes,it is.No,it isnt.Is Sam a dog?Yes,it is.No,it isnt.Are Jim and May sad?Yes,they are.No,they arent.Welcome to

6、English class.陈述句变一般疑问句，要分几种情况？1 1）含）含有有am,isam,is,are(beare(be动词）动词）2 2）含有情态动词）含有情态动词can,will,must,shouldcan,will,must,should3 3）没有）没有bebe动词和情态动词的动词和情态动词的1 1）含）含有有am,isam,is,areare的陈述句变的陈述句变 一一般疑问句般疑问句把把am,is,aream,is,are提到句子开头，剩下照抄，提到句子开头，剩下照抄，末尾变问号。末尾变问号。肯定句一般疑问句1.This is a ruler._2.Xu Chang is i

7、n grade 4._3.They are reading books._4.I am tired.Yes,it is.No,it isnt.Is this a ruler?Is Xu Chang in grade 4?Yes,she is.No,she isnt.Are they reading books?Yes,they are.No,they arent.Are you tired?Yes,I am.No,Im not.2 2）含有情态动词）含有情态动词can,will,must,shouldcan,will,must,should把情态动词提到句子开头，剩下照抄，把情态动词提到句子开

8、头，剩下照抄，末尾变问号。末尾变问号。肯定句I can swim.一般疑问句Can you swim?Tom can skate.Can Tom skate?肯定回答：肯定回答：否定回答：否定回答：Yes,I can.No,I cant.肯定回答：肯定回答：否定回答：否定回答：Yes,he can.No,he cant.They can ride.Can they ride?肯定回答：肯定回答：否定回答：否定回答：Yes,they can.No,they cant.口诀：一提二换三照抄口诀：一提二换三照抄一提一提：将情：将情态动词提态动词提到句到句首；首；二换：将第一人称换成第二人称；二换：将

9、第一人称换成第二人称；三照抄：陈述句剩下的都照抄三照抄：陈述句剩下的都照抄v例例1:I can sing songs.vStep1由情态动词引导的一般疑问句由情态动词引导的一般疑问句:Can vStep2:Can youvStep3:Can you sing songs?肯定句一般疑问句肯回，否回1.Sam can swim._2.Mary can skip._3.They will go shopping._4.I can dance.Yes,he can.No,he cant.Can Sam swim?Can Mary skip?Yes,she can.No,she cant.Will t

10、hey go shopping?Yes,they will.No,they wont.Can you dance?Yes,I can.No,I cant.如何将一个肯定的陈述句改为一般疑问句一般疑问句秘诀一：找秘诀一：找bebe动词或情态动词动词或情态动词看句中有无be动词或情态动词，如有，把be动词或情态动词提到句首即可。如果原句子没有be动词也没有情态动词，怎么办？陈述句变一般疑问句，要分几种情况？3 3）没有）没有bebe动词和情态动词的动词和情态动词的 助动词（do/doesdo/does）+主语+动词原形原形+其它？不管用哪种秘诀，都不要忘记在句子最后打上哦！秘诀二：请助动词来帮忙即

11、即在句子前加助动词在句子前加助动词dodo或或doesdoes来构成一般疑问句来构成一般疑问句例：John likes summer best.John like summer best?打回原形打回原形Does例：They like fruit.Do they like fruit?肯定句I like salad.一般疑问句Do you like salad?We like running.Do you like running?肯定回答：肯定回答：否定回答：否定回答：Yes,I do.No,I dont.肯定回答：肯定回答：否定回答：否定回答：Yes,we do.No,we dont.Th

12、ey like apples.Do they like apples?肯定回答：肯定回答：否定回答：否定回答：Yes,they do.No,they dont.(do)(do)(do)肯定句He reads books every day.一般疑问句Does he read books every day?She likes swimming.Does she like swimming?肯定回答：肯定回答：否定回答：否定回答：Yes,he does.No,he doesnt.肯定回答：肯定回答：否定回答：否定回答：Yes,she does.No,she doesnt.(does)(does)

13、口口诀：一选二提三换四照抄诀：一选二提三换四照抄一选：根据陈述句动词时态选择助动词；一选：根据陈述句动词时态选择助动词；二提：将选好的助动词提到句首；二提：将选好的助动词提到句首；三换：第一人称换第二人称三换：第一人称换第二人称,动词换回原形。动词换回原形。四照抄四照抄:陈述句剩余部分照抄陈述句剩余部分照抄v例例1:I like eating apples.vStep1:like是动词原形，故选是动词原形，故选dovStep2:dovStep3:do you like(I 变变you)vStep4:do you like eating apples?v例例3:He loves his moth

14、er.vStep1:loves是第三人称单数，故选是第三人称单数，故选doesvStep2:doesvStep3:does he love (loves 变原形变原形love)vStep4:does he love his mother?肯定句一般疑问句肯回，否回1.I like singing._2.We like reading._3.They like fish._Yes,I do.No,I dont.Do you like singing?Do you like reading?Yes,we do.No,we dont.Do they like fish?Yes,they do.No,

15、they dont.Does Mary like meat?Yes,she does.No,she doesnt.4.Mary likes meat.归归 纳纳:肯定句肯定句 一般疑问句句一般疑问句句1.be动词动词 把把be动词提前动词提前2.Can等情态动词等情态动词 把把can 提前提前 3.没有没有be和情态动词和情态动词 把把助动词助动词do（does）提）提前前More practice1.His mother is a teacher._2.The cat can catch a mouse._3.They can swim._4.I like to read English._

16、5.He can sing a song._6.She likes to eat cake._7.They are in the park._8.She is in Beijing._9.I am thirsty._Is his mother a teacher?Can the cat catch a mouse?Can they swim?Do you like to read English?Can he sing a song?Does she like to eat cake?Are they in the park?Is she in Beijing?Are you thirsty?