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1、A:What would you do if you had a million dollars?buy snacksB:If I had a million dollars,I would.give it to zooput it in a banktravel around the worldgive it to medical researchgive it to charityRevisionUnit 5Unit 5It must belong to Carla.It must belong to Carla.Guessing games Who is he?He cant be _.
2、He could/might be _.He must be _.He cant be _.He could/might be _.He cant be _.He could/might be _.He cant be _.He could/might be _.He cant be _.He could/might be _.He must be _.He cant be _.He could/might be _.He cant be _.He could/might be _.He must be _.情态动词情态动词must,might,could,cant 表示推测的含义与用法。表示
3、推测的含义与用法。情态动词情态动词must,might,could,cant 后面都接动词原形，都可以表示后面都接动词原形，都可以表示对现在情况的揣测或推断，但他们的含义有所不同：对现在情况的揣测或推断，但他们的含义有所不同：must 一定，肯定（一定，肯定（100%的可能性）的可能性）might,could 有可能，也许（有可能，也许（20%80%的可能性）的可能性）cant 不可能，不会（可能性几乎为零）不可能，不会（可能性几乎为零）e.g.The dictionary must be mine.It has my name on it.The CD might/could belong
4、to Tony because he likes listening to pop music.The hair band cant be Bobs.After all,he is a boy!1a Look at the picture.Write the things you see in the correct columns in the chart.ClothingFun things Kitchen thingshatvolleyballplatejacketT-shirtCDtoy carmagazinebookcupsbelong to someone 和和 be someon
5、es belong to someone 和和 be someones 含义基本相同，含义基本相同，都表示都表示“属于某人，归某人所有属于某人，归某人所有”，但要注意用法上的区别：，但要注意用法上的区别：belong to名词或宾格代词。名词或宾格代词。be someones(名词所有格或名词性物主代词名词所有格或名词性物主代词)e.g.The English book belongs to Tom.The English book is Toms(English book).The English book belongs to me.Tne English book is mine.1b
6、Listen and match each person with a thing and a reason.Listening textListening textGirl1:Whose volleyball is this?Boy1:It must be Carlas.She loves volleyball.Girl1:How about this toy car?Girl2:Oh,that toy car must belong to Janes little brother.He was the only little kid at the picnic.And the magazi
7、ne must belong to Deng Wen.He loves cats.Boy1:Oh,and look,someone left a book.Girl2:Oh,yeah This book must be Marys.Hemingway is her favorite author.Girl1:Ok and how about this CD?Girl2:Hmmm The CD must belong to Grace.She always listens to classical music.Sample dialogue 1:Sample dialogue 1:A A:Loo
8、k!Whose:Look!Whose book is this?book is this?B B:It must be Marys.:It must be Marys.Because Hemingway Because Hemingway is her favorite is her favorite author.author.PractisePractise making conversations making conversationsSample dialogue 2:Sample dialogue 2:A A:Look!Whose toy car Look!Whose toy ca
9、r is this?is this?B B:It must be Janes little:It must be Janes little brothers.Because he brothers.Because he was the only little kid was the only little kid atat the picnic.the picnic.Sample dialogue 3:A:Whose CD is this?B:It must be Graces.Because she always listens to classical music.EXERCISES:1.
10、This book _ Liu Yings.Look,her name is on the book cover（封面）.a.must be b.may be c.maybe d.mustnt be2.-Who is the man over there?Is it Mr Li?-No,it _ be him.Mr Li is in his hometown now.a.mustnt b.may not c.cant d.neednt3.-Listen,someone is coming,who _ it be?-It _ be Tom.He said he was to come at th
11、e time.a.might;can b.can;must c.can;may d.could;canacbbb 1.这本书一定是李雷的。他正在找这这本书一定是李雷的。他正在找这本书。本书。2.Translation2.Translation 2.这个戒指可能是韩梅的。她喜欢戴这个戒指可能是韩梅的。她喜欢戴戒指。戒指。This book must be Li Leis.He is looking for the book.The ring could be Han Meis.She likes wearing a ring.3.这个玩具可能是约翰的妹妹的。这个玩具可能是约翰的妹妹的。她还是个小
12、姑娘。她还是个小姑娘。4.这个排球不是玛丽的。她根本不喜这个排球不是玛丽的。她根本不喜欢排球。欢排球。The toy might belong to Johns sister.She is a little girl.The volleyball cant be Marys.She doesnt like playing volleyball at all.There are five people in Dicks family.Mr.Smith is a worker.Mrs.Smith is a housewife.Dicks sister Grace is 20.She has lon
13、g hair and she likesmusic.Dick is a 13-year-old boy.He likes sports and can play the guitar.Mark,Dicks brother is just 3 years old.Read the passage and remember the information.Whose-is this?Why?1.The might/could/must/cant be Mr Smith,because 2.The might/could/must cant belong to Mr.Smith,becauseGra
14、mmar Focus Grammar Focus 表示推测的情态动词表示推测的情态动词:在英语中，表示对某件事物的确在英语中，表示对某件事物的确定程度，即表示推测的时候，我们定程度，即表示推测的时候，我们通常会用到以下情态动词，通常会用到以下情态动词，must,might,could,may,cant,couldnt.一一.can和和could的区别和用法的区别和用法 1.can表示体力和脑力方面的能力表示体力和脑力方面的能力,或根据客观条或根据客观条件能做某种动作的件能做某种动作的“能力能力”。e.g.Can you speak English？Can you make a cake？can
15、用在否定句和疑问句中时有时表示说话人的用在否定句和疑问句中时有时表示说话人的“猜测猜测”或或“不肯定不肯定”。e.g.Can the news be true？(在日常会话中在日常会话中,can可代替可代替may表示表示“允许允许”,may比较正式比较正式)2.could 是是 can的过去式的过去式,表示过去有过的能力和表示过去有过的能力和可能性可能性,还有怀疑和不肯定的意思还有怀疑和不肯定的意思(在否定和疑问在否定和疑问句中句中)e.g.She couldnt skate when she was five years old.（能力）能力）At that time we thought
16、the story could be true.（可能性）可能性）could用来提问用来提问,是有礼貌的请求是有礼貌的请求 Could.Please?语气较为婉转。语气较为婉转。e.g.Could I speak to Mr.Smith,please?二二.might和和may的区别和用法的区别和用法:1.may的用法的用法:a.表示表示”允许允许”或或”请求请求”。e.g.May I come in？在使用这一用法时需注意在使用这一用法时需注意:may表示表示“允许允许”的否定形式是的否定形式是must not,意思是意思是“不应该不应该”“不许可不许可”。e.g.May I take th
17、is book out of the reading-room？No,you mustntb.表示说话人的猜测，认为某一事情表示说话人的猜测，认为某一事情“或许或许”或或“可能可能”发生。发生。e.g.He may know the answerc.may用在感叹句中可表示祝愿、愿望。用在感叹句中可表示祝愿、愿望。e.g.May you succeed(祝你成功。祝你成功。)May you have a pleasant journey(一路平安。一路平安。)2.2.mightmight的用法的用法的用法的用法:a.a.mightmight可以代替可以代替可以代替可以代替may,may,表示现
18、在时间的动表示现在时间的动表示现在时间的动表示现在时间的动作，但语气较为婉转客气或更加不肯定。作，但语气较为婉转客气或更加不肯定。作，但语气较为婉转客气或更加不肯定。作，但语气较为婉转客气或更加不肯定。e.g.e.g.MightMight I take a suggestion I take a suggestion？b.b.mightmight用来表示现在时间时用来表示现在时间时用来表示现在时间时用来表示现在时间时,还可表示还可表示还可表示还可表示“规劝规劝规劝规劝”。e.g.You e.g.You mightmight pay more attention to pay more atte
19、ntion to spoken English spoken English 三三.must与与have to的区别的区别have to比较强调客观需要比较强调客观需要,must着重说明主观看法。另外着重说明主观看法。另外have to能用于更多时态能用于更多时态,比较下面的句子：比较下面的句子：We had to be there at 10:00.有时两者都可以用有时两者都可以用,意思差别不大。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在表示说话人对事物的推测时候要注意它比may肯定肯定得多得多,相当于汉语的相当
20、于汉语的“一定一定”或或“准是准是”。(只有在肯定句只有在肯定句中能这样用。中能这样用。)e.g.This must be your room 在回答由在回答由must引起的问题时引起的问题时,如果是否定的答复，不能如果是否定的答复，不能用用mustnt,而需要用而需要用neednt或或dont have to,因为因为mustnt是是“一定不要一定不要”的意思。的意思。1.Choose the best answer1.Choose the best answer 1.I didnt hear the phone.I _ a sleep.A.must be B.must have been
21、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 notB.must have beenB.must have beenC.cantC.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.mustB.mayB.mayB.mightB.mightDear John,I need my dictionary,sun glasses,cap,purse,watch,soccer,umbrella and keys to my bike.And Id like something to drink.But sorry,I am not sure where they are.Could you bring them to me?Yours Tony BANK OF CHINA