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1、Unit 5,It must belong to Carla.,Section A,Grammar focus,情态动词must,might,could,cant 表示推 测 的含义与用法。情态动词must,might,could,cant 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,must,cant,couldmightmay,100%一定，肯定probably true,20%-80%可能也许possibly true,0%不可能almost not true,Lets play a game!,He must be _.,He must be _.,He
2、 must be _.,What is it?,What is it?,What is it?,What is it?,What is it?,What is it doing?,It might/could be_.,What is it doing?,It might/could be_.,What does she do?,She could/might be a/an_,What does he do?,He could/might be a/an_,It must be _.,Whose book is this?,It must belong to _.,Whose eraser
3、is this?,Whose eraser is this?,It must be_.She loves beautiful pencil case.,Whose pencil case is this?,幻灯片 3 e.g.The dictionary must be mine.It has my name on it.The CD might/could belong to Tony because he likes listening to pop music.The book cant be Toms.He wasnt at school today.,1a,belong author
4、 picnic hair hand possibly,v.属于 n.作家；作者 n.（自带食物的）郊游野餐 发带 adv.可能地；也许,author,possibly,belong,picnic,hair hand,at a picnic在野餐,Attention注意It must be sbs一定是某人的东西It must belong to sb一定属于某人,Step 2:look at the picture and fill in the chart,cup,1b,PersonJanes little brotherMary CarlaDeng WenGrace,ThingVolley
5、ballToy carMagazineBookCD,ReasonHemingway is herfavorite author.She loves volleyball.He was the only little kid at the picnic.She always listens to classical music.古典音乐He loves cats.,Listen and match each person with a thing and a reason.,2a,Listen and write down the things in the backpack.,Things i
6、n the backpack.,1.,2.,3.,T-shirt,Hair band,Tennis ball,2b,The person must go to our school.2.The person be a boy.3.It be Meis hair band.4.The hair band belong to Linda.5.It be Lindas backpack.,cant,could,must,might,Listen again and fill in the blank,2c,1.The notebook be Mings.It was on her desk.2.Th
7、e homework be Carols.She wasnt at school today.3.The soccer ball be John s or Tonys.They both play soccer,dont they?4.The French book be Li Yings.Shes the only one whos studying French.,must/might,cant,might,must,5.I cant find my backpack.It be still at school.6.The photo be Lus.Those are his parent
8、s.7.The red bicycle be Hus.She has a blue bicycle.8.This ticket be my aunts or uncles.Theyre both going to the concert.,might/must,must,cant,might,表示推测的情态动词,summary,(1)must 100%一定，肯定100%Probably true(2)may/might/could 可能也许20%-80%possibly true(3)cant 不可能0%almost not true结构：must/may/might/could+do mus
9、t/may/might/could+be doing“正在做”must/may/might/could+be done“.被做,Fill in the blanks with must,cant,could or might.,Exercise,2c,1.The notebook be Mings.It was on her desk.2.The homework be Carols.She wasnt at school today.3.The soccer ball be John s or Tonys.They both play soccer,dont they?4.The Frenc
10、h book be Li Yings.Shes the only one whos studying French.,must/might,cant,might,must,5.I cant find my backpack.It be still at school.6.The photo be Lus.Those are his parents.7.The red bicycle be Hus.She has a blue bicycle.8.This ticket be my aunts or uncles.Theyre both going to the concert.,might/c
11、ould,must,cant,might/could,1.这本书一定是李雷的。他正在找这本书。,Translation,2.这个发带可能是韩梅的。她喜欢戴发带。,This book must be Li Leis.He is looking for the book.,The hair band could be Han Meis.She likes wearing a hair band.,3.这个玩具可能是约翰的妹妹的。他还是个小姑娘。,4.这个排球不是玛丽的。她根本不 喜欢排球。,The toy might belong to Johns sister.She is a little g
12、irl.,The volleyball cant be Marys.She doesnt like playing volleyball at all.,情态动词用法总结,1.can否定cant 2.Could,（1）表示能力“能”“会”（2）表委婉语气（3）cant 表推测“不可能”,(1)can的过去式(2)表示委婉语气could you?你能吗？_sure,I can/sorry,I cant(3)表示推测“可能，也许”,3.may/might（1）表推测“也许”（2.表委婉语气May I.?我可以.吗?回答;yes,you can/may.No,you cant（不能）/mustnt(禁止)4.must=have to（1）表示“必须，不得不”mustnt“禁止，不允许”_Must I.?我必须?No,you neednt=you dont have to不，你不必 Yes,you must是的，你必须做。（2）表示推测“肯定”“一定”,否定形式,HOMEWORK,Please do more practice as required in 1c on Page 34.Write 3 conversations like 1c in your exercises book.(Pay attention to must/might/could/cant),
