小学英语语法：陈述句变一般疑问句

1、精选课件1Welcome to English class.精选课件2课前准备课前准备精选课件3精选课件4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

2、的，你能是的，你能精选课件5 如果有人问你，你今年是九岁吗，你会怎么回答？ 你一定会说，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 精选课件6陈述句变一般疑问句，要分几种情况？1 1）含有）含有am ,is, are(beam ,is, are(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精选课件71 1）含有）含有am ,is, aream ,is, are的陈述句变的陈述句变 一般疑问句一般疑问句精选课件

3、8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 six. 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精选课件9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 fri

4、end?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, we arent.精选课件10口诀：一提二换三照抄口诀：一提二换三照抄一提：将一提：将be动词提到句首；动词提到句首；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精选课件111. 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 f

5、or 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精选课件12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

6、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.精选课件13精选课件14精选课件15Welcome to English class.精选课件16精选课件17陈述句变一般疑问句，要分几种情况？1 1）含有）含有am ,is, are(beam ,is, are(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,sh

7、ould3 3）没有）没有bebe动词和情态动词的动词和情态动词的精选课件181 1）含有）含有am ,is, aream ,is, are的陈述句变的陈述句变 一般疑问句一般疑问句把把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。精选课件19肯定句一般疑问句1. This is a ruler._2. Xu Chang is in grade 4._3. They are reading books._4. I am tired.Yes , it is.No, it isnt.Is this a ruler?Is Xu Chang

8、 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.精选课件202 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头，剩下照抄，末尾变问号。末尾变问号。精选课件21肯定句I can swim. 一般疑问句Can you swim?Tom can skate.Can Tom

9、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.精选课件22口诀：一提二换三照抄口诀：一提二换三照抄一提：将情态动词提到句首；一提：将情态动词提到句首；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精选课件23v例例1: I can sin

10、g 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?精选课件24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 they go shopping?Yes , they will

11、.No, they wont.Can you dance?Yes , I can.No, I cant.精选课件25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。精选课件26如果原句子没有be动词也没有情态动词， 怎么办？精选课件27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精选课件28 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

12、：请助动词来帮忙即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?精选课件29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：

13、Yes, we do.No, we dont.They 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)精选课件30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：

14、否定回答： Yes, she does.No, she doesnt. (does) (does)精选课件31 口诀：一选二提三换四照抄口诀：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精选课件32v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

15、you like(I 变变you)vStep4: do you like eating apples?精选课件33v例例3: He loves his mother.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?精选课件34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 do

16、nt.Do you like singing?Do you like reading?Yes , we do.No, we dont.Do they like fish?Yes , they do.No, they dont.Does Mary like meat?Yes ,she does.No, she doesnt.4. Mary likes meat.精选课件35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 把助动词把助动词do（does）提前）提前精选课件36More practiceHis mother is a teacher. _The cat can catch a mouse._They can swim. _I like to read English. _He can sing a song. _She likes to eat