1、Unit 8 It must belong to Carla.,Section A (Grammar Focus4c),翻译下列词组。 1.在实验室里 _ 2.思考，考虑 _ 3.洗澡，淋浴 _ 4.尽力做某事 _ 5.感到困倦 _ 6.戴眼镜 _,课前预习,in the laboratory,think of,try to do sth,take a shower,feel sleepy,wear glasses,Step 1 准备与热身(preparation),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 _. S
2、he loves volleyball.,Whose volleyball,must Carlas,Fill in the blanks.,Step 2 呈现与输入 (Presentation),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
3、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
4、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 plan
5、e 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 /
6、 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 go
7、ne 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。,1. Excuse m
8、e. 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 workin
9、g 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,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
10、 be) in the laboratory.,might be,n. 实验室,Step 3 练习与体验 (Practice),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 Par
11、is.=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
12、.” 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
13、 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
14、 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,Step 4 运用与生成 (production),It could be a girls roombecause its very tidy.,I guess so. But it might be a bo
15、ys 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 ,might,might,could,might,cant,Step 5. 巩固与提高（Progress）,探究点一 情态动词 1.概念：情态动词must, may, might, can和could可以用来表示推测，表示不确定的某事发生的可能性。 2.构成：情态动词+动词原形，情态动词没有人称和数的
16、变化形式。3.用法： （1）当你不确认某件事情是否是真实的，可以用could, might来表示，意为“可能、或许”。might, could为may和can的过去形式，既可表示过去时态，又可表示猜测，表示猜测时，could比might的可能性要大。 情态动词+动词原形。表示对现在或将来的情况的推测。 e.g.信息：她拿着乒乓球拍出去了。 She could go to play ping-pong.她可能是去打乒乓球。 情态动词+be+动词现在分词。表示对现在或将来正在进行的情况进行推测。 e.g.信息：放学了老师还在办公室。 At this moment, our teacher migh
17、t be correcting our exam papers.这时，我们老师可能在批改试卷。,（2）如果你非常确定某事时，就要表示“一定是，肯定是”。must可用来表示我们对某事确有把握，即用于肯定句中表示有把握的推测。 情态动词+动词原形，表示对现在情况的肯定推测。 e.g.信息：汤姆植树归来。 Tom must be tired after planting trees.汤姆植树后一定很累。 情态动词+have+动词过去分词。表示对过去情况的推测。 e.g.信息：地是湿的。 It must have rained last night.昨天晚上一定下雨了。 （3）表示否定的推测时，一般用
18、cant表示“不可能”。e.g.信息：她的房间里开着灯。 She must be at home. She cant be out.她一定在家，不会出去的。,针对训练 （ ）1. He _ be in the classroom, I think. No, he _ be in the classroom. I saw him go home a minute ago.A. can; may not B. must; may notC. may; cant D. may; mustnt （ ）2. Are you coming to Jeffs party?Im not sure. I _ g
19、o to the concert instead.A. must B. wouldC. should D. might （ ）3. Is John coming by train?He should, but he _ not. He likes driving his car.A. must B. canC. need D. may （ ）4. A luggage office is a place where bags _ be left for a short time, especially at a railway station.A. should B. canC. must D.
20、 will （ ）5. Johnny, you _play with knife, or you _ hurt yourself.A. may; may B. cant; canC. mustnt; may D. may not; can,C,D,D,B,C,探究点 二 whose引导的特殊疑问句 1.“whose”表示“谁的”，可单独使用，后面也可跟名词。 e.g.Whose is this bag?这个包是谁的？ Whose bag is this?这是谁的包？ 2. whose可用来提问形容词性物主代词也可提问名词性物主代词，还可提问名词所有格。 e.g. The beautiful c
21、oat is Mikes .（对画线部分提问） Whose is the beautiful coat? My hair band is pink.（对画线部分提问） Whose hair band is pink?,6. （谁的粉红色背包）is this? It （肯定属于）Linda. She likes pink very much. 7. Those are Peters storybooks.（对画线部分提问）storybooks ?,针对训练,Whose pink backpack,must belong to,Whose,are those,1. Remember the Grammar. 2. 完成本单元学生用书第三课时的练习。,Step 6. 家庭作业(Homework),The end，thank you!,
