九年级英语上册(It must belong to Carla)课件 人教新目标版 课件.ppt

Unit 5,It must belong to Carla,Period 1,Jim,Guessing,Who has the following things?,表示推测的情态动词,在英语中，表示对某件事物的确定程度，即表示推测的时候，我们通常会用到以下情态动词：,must,might,could,may,cant,couldnt.,must,cant,could,might,100%,probably true,20%-80%,possibly true,0,almost not true,Learn to make inference,程度,肯定句,否定句,疑问句,must,may,might,/could,can,t,can,must,用在肯定句中表示较有把握的推测，意为,“,一定,”,。,(100%),He must be working at home.,must,表示对已发生的事情的推测时，,must,要接完成式,.,The road is wet.It must have rained last night,He,can,t,be _.,He,could/might,be _.,He,can,t,be _.,He,could/might,be _.,He,can,t,be _.,He,could/might,be _.,He,can,t,be _.,He,could/might,be _.,He,must,be _.,Can you guess what it is?,It,could,be,_.,It also,might,be,_.,a white vase,two faces,It could be,_.,It also might be,_.,Can you guess what it is?,a dog,two girls,Could A be bigger than B?,In fact,A and B,must,be _,_.,Which one is bigger,A or B?,A,B,the same size,No.,1.,这本书一定是李雷的。他正在找这本书。,This book _be Li Leis.He is looking for it.,2.,这个发带可能是韩梅的。她喜欢戴发带。,The hair band _be Han Meis.She likes wearing a hair band.,must,could,3.,这个玩具熊可能是约翰的妹妹的。,她还是个小姑娘。,The toy bear _belong to Johns sister.She is a little girl.,4.,这个排球不是玛丽的。她根本不喜欢排球。,The volleyball _be Marys.She doesnt like playing volleyball at all.,might,cant,Clothing,Fun things,Kitchen things,hat,volleyball,plate,T-shirt,jacket,Toy car,magazine,CD,book,cup,Listening and speaking(1b:P34),is her favorite author.,1.,Janes little brother,toy car,He was the only little kid at the picnic.,2.,Mary,book,Hemingway,listens to classical music.,3.,Carla,volleyball,She loves volleyball.,4.,Deng Wen,magazine,He loves cats.,5.,Grace,CD,She always,Thank you!,Bye-bye,一,.can,和,could,的区别和用法,1.can,表示体力和脑力方面的能力,或根据客观条件能做某种动作的“能力”。例如：,Can you speak English,？,Can you make a cake,？,can,用在否定句和疑问句中时有时表示说话人的“猜测”或“不肯定”。,例如：,Can the news be true,？,(,在日常会话中,can,可代替,may,表示“允许”,may,比较正式,),2.could,是,can,的过去式,表示过去有过的能力和可能性,还有怀疑和不肯定的意思,(,在否定和疑问句中,),。,e.g.,She couldnt skate when she was five years old.,（能力）,At that time we thought the story could be true,（可能性）,could,用来提问,是有礼貌的请求,Could.,，,please?,语气较为婉转。,e.g.,Could I speak to Mr.Smith,please?,二,.Might,和,may,的区别和用法,:,1.may,的用法,:,a.,表示“允许”或“请求”。,e.g.May I come in,？,在使用这一用法时需注意,:may,表示“允许”的否定形式是,must not,意思是“不应该”“不许可”。,e.g.,May I take this book out of the reading-room,？,No,you mustnt,b.,表示说话人的猜测，认为某一事情“或许”或“可能”发生。,e.g.,He may know the answer,c.may,用在感叹句中可表示祝愿、愿望。,e.g.,May you succeed,(,祝你成功。,),May you have a pleasant journey,(,一路平安。,),2.might,的用法,:,a.might,可以代替,may,表示现在时间的动作，但语气较为婉转客气或更加不肯定。,e.g.,Might I take a suggestion,？,b.might,用来表示现在时间时,还可表示“规劝”。,e.g.,You might pay more attention to spoken English,三,.must,与,have to,的区别,have to,比较强调客观需要,must,着重说明主观看法。另外,have to,能用于更多时态,比较下面的句子：,We had to be there at 10:00.,有时两者都可以用,意思差别不大。,e.g.,We must/have to leave now.,must,在表示说话人对事物的推测时候要注意它比,may,肯定得多,相当于汉语的“一定”或“准是”。,(,只有在肯定句中能这样用。,),This must be your room,在回答由,must,引起的问题时,如果是否定的答复，不能用,mustnt,而需要用,neednt,或,dont have to,因为,mustnt,是“一定不要”的意思。,1.Choose the best answer,1.I didnt hear the phone.I _ asleep.,A.must be,B.must have been,C.should be D.should have been,2.Mary _ be in Paris.I saw her in town only a few minutes ago.,A.mustnt B.shouldnt,C.cant,D.may not,B.must have been,C.cant,3.Peter _ come with us tonight,but he isnt very sure yet.,A.must,B.may,C.can D.will,4.I thought you _ like something to read,so I have brought you some books.,A.may,B.might,C.could D.must,B.may,B.might,1.,这本书一定是李雷的。他正在找这本书。,This book must be Li Leis.He is looking for it.,2.Translation,2.,这个发带可能是韩梅的。她喜欢戴发带。,The hair band could be Han Meis.She likes wearing a hair band.,3.,这个玩具熊可能是约翰的妹妹的。,她还是个小姑娘。,The toy bear might belong to Johns sister.She is a little girl.,4.,这个排球不是玛丽的。她根本不喜欢排球。,The volleyball cant be Marys.She doesnt like playing volleyball at all.,