单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,#,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,Unit 8,It must belong to Carla.,Section A,(Grammar Focus-4c),2024/11/16,1,Unit 8 Section A2023/9/211,Review,Translate the phrases.,outside the window have fun,next-door neighbor,at first,run away,feel uneasy,have no idea,have fun(in)doing sth.,在窗外,玩得高兴,隔壁邻居,最初；首先,逃跑,心神不安,一点不知道；没办法,做某事很愉快,2024/11/16,2,ReviewTranslate the phrases.ou,-Whose volleyball is this?,-It must be Carlas.She loves volleyball.,-Whose book is this?,-It must be Marys.J.K.Rowling is her favorite writer.,-Whose hair band is this?,-It could be Meis.,Read the sentences below,paying attention to the colored parts.,2024/11/16,3,-Whose volleyball is this?R,-Whose notebook is this?,-It must be Mings.It has her name on it.,-Whose French book is this?,-It could be Carols.She studies French.,-Whose guitar is this?,-It might belong to Alice.She plays the guitar.,-Whose T-shirt is this?,-It cant be Johns.It is too small for him.,Read more sentences.,2024/11/16,4,-Whose notebook is this?Rea,must,cant,could,might,100%,probably true,20%-80%,possibly true,0,almost not true,2024/11/16,5,mustcantcould100%20%-80%02023,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,。,2024/11/16,6,表示推测的情态动词 2023/9/216,一,.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”。,Can you speak English,？你会说英语吗？,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”。,Can the news be true?,那些新闻会是真的吗？,(,在日常会话中,can,可代替,may,表示“允许”,may,比较正式,),2024/11/16,7,一.can和could的区别和用法2023/9/2,2.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,),。,She couldnt skate when she was five years old.,她五岁时不会滑冰。（能力）,At that time we thought the story could be true.,那时我们认为那个故事是真的。（可能性）,could,用来提问,是有礼貌的请求,Could.Please?,语气较为婉转。,Could I speak to Mr.Smith,please?,我可以和史密斯先生通话吗？,2024/11/16,8,2.could 是 can的过去式,表示过去有过的能,二,.might,和,may,的区别和用法,:,1.may,的用法,:,a.,表示“允许”或“请求”。,May I come in?,我可以进来吗？,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”。,May I take this book out of the reading room?,我可以将这本书带出阅览室吗？,No,you mustnt.,不，你不可以。,2024/11/16,9,二.might和may的区别和用法:2023/9/219,b.,表示说话人的猜测，认为某一事情“或许”或“可能”发生。,He may know the answer.,他可能知道答案。,c.may,用在感叹句中可表示祝愿、愿望。,May you succeed.,祝你成功。,May you have a pleasant journey.,一路平安。,2024/11/16,10,b.表示说话人的猜测，认为某一事情“或许”或“可能”发生。,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。,Might I offer a suggestion,？我可以提个建议吗？,b.might,用来表示现在时间时,还可表示”规劝”。,You might pay more attention to spoken,English.,你应该花更多精力在口语上。,2024/11/16,11,2.might的用法:2023/9/2111,三,.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：,My brother was seriously ill,so I had to call the doctor in the middle of the night.,我的哥哥病得很重，所以我必须在半夜给医生打电话。,(,客观上需要做这件事,),He said that they must work hard.,他说他们必须努力工作。（主观上要做这件事）,2024/11/16,12,三.must与have to的区别2023/9/211,有时两者都可以用,意思差别不大。,We must/have to leave now.,现在我们必须,/,不得不离开。,must,在表示说话人对事物的推测时，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.,这一定是你的房间。,2024/11/16,13,2023/9/2113,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，表示禁止。,-Must I hand in my homework now?,我现在可以上交我的作业吗？,-No,you neednt.,不需要。,2024/11/16,14,在回答由must引起的问题时,如果是否定的答复，不能,情态动词表示推测可以分为以下几种情况,:,情态动词,+do,此结构表示对现在或将来情况的推测和判断,Do you know where she is now?,你知道她现在在哪儿吗？,I think she might travel in Beijing.,我想她可能在北京。,2024/11/16,15,情态动词表示推测可以分为以下几种情况:2023/9/21,情态动词,+be doing,此结构表示对现在或将来正在进行的情况的推测和判断。,At this moment,my father cant be working in the office.,这个时候，我父亲不可能在办公室工作。,2024/11/16,16,情态动词+be doing此结构表示对现在或将来正在,情态动词,+have done,此结构表示对过去情况的推测和判断。,The road is wet.It must have rained last night.,这条路是湿的。昨晚肯定下雨了。情态动词,+have been doing,此结构表示对过去正在进行的情况的推测和判断。,Your mother must have been looking for you at that moment.,那个时候，你母亲肯定在找你。,2024/11/16,17,情态动词+have done此结构表示对过去情,根据句意,从方框中选择正确的情态动词填空,每项限用一次。,should,must,cant,may not,mustnt,1.That _ be Lucy.She has gone to Beijing on business.,2.There _ be something wrong with my watch.It isnt working now.,cant,must,2024/11/16,18,根据句意,从方框中选择正确的情态动词填空,每项限用一次。,3.He _ know the answer,either.,Lets ask that policeman.,4.You _ swim in the river.Its,dangerous.,5.You _ look after your parents,when they become older.Its your duty.,may not,mustnt,should,2024/11/16,19,3.He _ know the answer,用,must,might,could,或,cant,填空,The toy car _ be Jims.He is the,only kid at the picnic.,2.This Mp5 _ be Lindas.I know she has one.,3.The mobile phone _ belong to,Lucy or Lily.They both have mobile,phones.,4.The man _ be Mr Smith.He has,gone to Shanghai and hell be back in,three days.,must,could/might,could/might,cant,2024/11/16,20,用must,might,could或cant 填空m,4a Choose the best way to complete each sentence u