【金榜学案】Unit 4 Section A(Grammar Focus-3c)课件.ppt

Unit 4Dont eat in class.Section A(Grammar Focus-3c),.选句子配图 Dont talk.Dont listen to music.Dont eat.Dont take photos.,答案:1.Dont eat.2.Dont talk.3.Dont take photos.4.Dont listen to music.,.句型展示1.她必须在图书室里保持安静吗?是的。she quiet in the library?Yes,she.答案:Does;have to be;does,2.我们能在走廊里听音乐吗?不,不能。we music in the hallways?No,you.3.我们不必天天来上学。We come to school every day.答案:2.Can;listen to;cant 3.dont have to,Does he have to wear a uniform at school?在学校里他必须穿着校服吗?,【自主领悟】(1)have to为情态动词,意为“必须,不得不”,后接动词原形,有人称、时态和数的变化。其第三人称单数形式为has to,过去式为had to。例如:Its too late.I have to go home.太晚了。我必须回家了。(2)have to的否定形式和疑问形式要借助于do/does/did等助动词来表示。例如:You dont have to clean the room now.你现在没必要打扫房间。,【用法辨析】have to与must的区别,【图解助记】,【活学活用】他今天得去看望他爷爷。He visit his grandfather today.今天你不必穿校服。You wear your school uniform today.你必须买票进电影院。You a ticket to go into the cinema.答案:has todont have tomust buy,.单项选择1.Can we wear hats in class?.A.Yes,we doB.No,we dontC.Yes,we can D.Yes,we cant2.Can I use your ruler?Yes,you.A.mayB.needC.canD.must,3.do you have to do after school?Do my homework,of course.A.WhatB.WhenC.WhereD.How4.late for school again.Sorry,I wont.A.Not beB.Dont beC.Not D.Dont5.Which of the following pictures means“Please be quiet”?,.句型转换1.We have to stay at home.(改为一般疑问句)youto stay at home?2.Bob has to get home before nine oclock.(改为否定句)Bob get home before nine oclock.3.We can wear our own clothes.(改为一般疑问句,并作否定回答)youyour own clothes?No,we.答案:1.Do;have2.doesnt have to3.Can;wear;cant,.将栏中的问句和栏中的答语匹配1.Can we eat in the classroom?2.Can students talk in the hallways?3.Do we have to wear a uniform?4.What is the first rule?5.Do I have to wear a hat?,A.Dont fight.B.No,you dont have to.Its not cold today.C.Yes,we do.D.No,we cant.E.Yes,they can.答案:15.DECAB,