人教版九年级Unit8Grammarfocus（第3课时）课件.ppt

Unit 8It must belong to Carla.,Section A 3Grammar Focus-4c,Revision,一、按要求写出下列词汇或词组。,1.太而不能 _2.不知道 _ 3.曾经，过去常常 _ 4.看见某人正在做某事 _5.奇怪的噪音 _ 6.感到不安 _7.离开 _,too.to.,have no idea,used to,see sb doing,feel uneasy,strange noises,go away,8.它太大了而不可能是狗._9.这个地区的一个妇女看到有东西在逃跑。_ _10.噪音制造者正享受着在街区制造害怕的 乐趣。_ _,It was too big to be a dog.,A woman in this area saw something running away.,The noise-maker is having too much fun creating fear in the neighborhood.,Grammar Focus,1.这是谁的排球?_ _ is this?这一定是卡拉的。她热爱排球运动。It _ be _.She loves volleyball.,Whose volleyball,must Carlas,Fill in the blanks.,2.这是谁的发带？_ _ _ is this?它可能是梅的发带。或者可能属于琳 达。她们两人都是长头发。It _ be Meis hair band.Or it _ belong to Linda.They _ have long hair.,could,might,both,Whose hair band,3.那晚你看见了什么？_ did you see that night?我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。Im _ _,but it _ _ a dog.It was bigger.I think it _ _ a bear or a wolf.,What,not sure,cant be,might be,Grammar:情态动词表推测,可能性:must can/could may/might,can not(cant)could not(couldnt),may not/might not,否定,否定,表示可能性最大的肯定推测，意思是“一定、准是”。只能用于肯定句。如果要表示“一定不”，应该用cant。如果询问可能性时，应该用can。,must,e.g.He must know the answer.他肯定知道答案。He cant know the answer.他肯定不知道答案Can he know the answer?他知道答案吗？,can表示推测“可能性”时，一般用于否定句或疑问句。can在疑问句中意思是“会，可能”。e.g.He can t pick her schoolbag up.他不可能拿了她的书包。could 用于表示某事有可能发生或可能是事实。,can/could,e.g.Dont eat it.It could go bad.不要吃它，它可能坏了。The plane could be put off by the storm.这趟飞机可能会因为暴风雨而推迟。could可用于表示客气、礼貌、委婉的请求语气。e.g.Could you please help me with my homework?你能帮我完成我的家庭作业吗？,may,might表示推测“可能性”时，意思是“可能”，“也许”。might不表示过去时态，语气更委婉，可能性更小。may，might表推测时，可用于否定句，但不用于疑问句。e.g.He may/might not be at home,but Im not sure.他可能不在家，不过我也不确定。,may/might,推测时态,推测现在/正在/过去发生的动作。e.g.He must have a car now.(现在)他一定有一辆小汽车。He must be finishing his homework at home.(正在进行)他一定在家做作业。He must have finished the work.(过去)他一定已经完成了工作。,must,can/cant 后可接进行时/完成时，表示对现在发生的动作或过去发生的动作进行推测。e.g.They cant be reading in the library.他们一定不在图书馆读书。He cant have gone to Shanghai because I saw him just now.他不可能去了上海，我刚看见他了。,can,may/might,may，might 可以推测现在正在发生的动作或过去发生的动作，还可以推测将来的情况。e.g.He may/might be sleeping now.(现在)他可能正在睡觉。These people may/might have seen the film before.(过去)这些人以前可能看过这部电影。It may rain.There are some clouds.(将来)可能会下雨。因为有一些乌云。,4a,Choose the best way to complete each sentence using the words in brackets.,1.A:Wheres Jean?B:Im not sure.She _(is/might be/must be)in the laboratory.,might be,n.实验室,2.A:Everyone is going to the pool after school.B:Really?It _(must be/cant be/could be)hot outdoors.,must be,表示“位移”的动词用现在进行时态表将来，例如：go去，come来，leave离开，arrive到达，return 回来，fly 飞。,e.g.I am coming.=I will come.He is leaving for Paris.=He will leave for Paris.,adv.在户外，在野外,3.A:Thats the phone.B:Hmm.I wonder who it _(must be/could be/should be).,could be,4.A:I wonder if there are Jims glasses.B:They _(cant be/might be/could be)his.He doesnt wear glasses.,cant be,wonder v.“想知道”(want to know)No wonder+句子，“难怪.”e.g.No wonder you are angry.难怪你觉得生气。,5.A:I hear water running in the bathroom.B:It _(could be/must be/cant be)Carla.She was thinking of taking a shower.,could be/must be,think of 想要；打算e.g.I thought of playing basketball.我想打篮球。,1.A:Many people are wearing coats.B:The weather must be _ _.2.A:Sally has been coughing a lot.B:She might be _.,getting colder/cold outside,having a sore throat/ill,4b,Complete these responses.,n.外套,3.A:This restaurant is always very crowded.B:The food _.4.A:Whenever I try to read this book,I feel sleepy.B:It cant _.,must be delicious,be that boring,adj.困的,Look at this picture of a room.How much can you tell about the person who lives here?Is it a boy or a girl?What are his/her hobbies?Discuss your ideas with a partner.,4c,It could be a girls room because its very tidy.,I guess so.But it might be a boys room because the clothes look like boys clothes.,It could/might/cant be.because.,I guess so/I dont think so.But it might/could/must be.because,1.Excuse me.Is this the right way to the Summer Palace?Sorry,I am not sure.It _ be.A.might B.will C.must D.can,Choose the correct answer.,2.Isnt that Anns husband over there?No,it _ be him Im sure he doesnt wear glasses.A.cant B.must not C.wont D.may not,3.You _ be tired youve only been working for an hour.A.must not B.wont C.cant D.may not,4.Is John coming by train?He should,but he _ not.He likes driving his car.A.must B.can C.need D.may,Remember the Grammar.Finish the exercise in 4c.,