Unit8 Section A (Grammar Focus－4c)课件 人教版英语九年级全一册

1、Unit 8 It must belong to Carla.Section A (Grammar Focus4c)情景导入Do you hear strange noises outside our window?Yes, there must be some strange happenings in our town.My father called the policeman, but he couldnt find anything strange.Maybe it was a wolf. Everyone in our town is feeling uneasy.单词展示outd

2、oorsadv.在户外;在野外laboratoryn.实验室sleepyadj.困倦的；瞌睡的coat n.外套；外衣生成新知Whose volleyball is this? It must be Carlas. She loves volleyball.Whose hair band is this?It could be Meis hair band. Or it might belong to Linda. They both have long hair.What did you see that night?Im not sure, but it cant be a dog. It

3、 was bigger. I think it might be a bear or a wolf.Grammar Focuscan可表示能力/允许/可能性/怀疑猜测，意为“可以，会，能”；cant意为“不会，不能，不可以”，还有“不可能”之意。could为can的过去式，用法与can类似，常用于过去时态中；cancould还可用于现在时态中表示委婉客气，相当于can；could也可表示惊讶怀疑，不相信。eg: He couldnt be a thief.may表示允许、也许，意为“也许；可能；可以”，语气不太可能。对may的一般问句的回答：肯定回答一般是：Yes, please./ Cert

4、ainly./ Sure等否定回答一般是： No, you cant/mustnt. maymight是may的过去式，与may用法类似，语气比may弱，表示推测的可能性更小，常用于肯定句和否定句中，不用于疑问句中。must表示必须要做的事，意为“必须，应该”。must一般问句的否定回答用neednt或dont have to，而不用mustnt，mustnt意为“不可以，不能”，表示禁止，不许可。musteg: Must we hand in our exercise book today? Yes, you must. ( No, you neednt.) must还可表示有把握的推测，意

5、为“一定、肯定”。must的过去式还是must。在回答以must开头的一般疑问句时，否定式需用neednt，表示“不必”的意思。【活学活用】 The lake is said to be dry. Is that true? It _. Look, some kids are swimming in it! A. must be true B. cant be true C. may not be trueBWhere are you going this month?We _ go to Xiamen, but were not sure. A. neednt B. must C. migh

6、t D. mustnt COh, its raining hard.Be careful! The road _ be wet.A. could B. must C. mightB4aChoose 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.2. A: Everyone is going to the pool after school.

7、B: Really? It _ (must be / cant be /could be) hot outdoors.might bemust be3. A: Thats the phone. B: Hmm. I wonder who it _ (must be / could be / should be).4. A: I wonder if these are Jims glasses. B: They _ (cant be / might be / could be) his. He doesnt wear glasses.could becant be5. A: I hear wate

8、r running in the bathroom. B: It _ (could be / must be / cant be) Carla. She was thinking of taking a shower. could beGrammar * wonder v. “想知道” (want to know)* think of 想要；打算No wonder + 句子，“难怪.”e.g. No wonder you are angry. 难怪你觉得生气。e.g. I thought of playing basketball.我想打篮球。4bComplete these response

9、s.1. A: Many people are wearing coats. B: The weather must be _.2. A: Sally has been coughing a lot. B: She might be _.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 _.getting colder/ cold outsidehaving a sore throat/ ill

10、must be deliciousbe interesting/ excitingGrammar Whenever I try to read this book, I feel sleepy. 每当我试图读这本书时，我都感觉到困倦。本句是whenever 引导的时间状语从句。 sleepy是形容词，意为“困倦的；瞌睡的”。【妙辨异同】sleepy asleep形容词，意为“困倦的；瞌睡的”。既可作定语，也可作表语。形容词，意为“睡着的”，只能作表语，不能作定语。fall asleep 意为“入睡”。4cLook at this picture of a room. How much can

11、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.A: It could be a girls room because its very tidy.B: I guess so. But it might be a boys room because the clothes look like boys clothes.I guess so/I dont think so. But it mi

12、ght/could/must bebecause.It could be/might/cant be becauseImportant sentences1Whose hair band is this？这是谁的发带？ It could be Meis hair band.Or it might belong to Linda.They both have long hair.它可能是梅的发带，也可能是属于琳达的。 她们俩都有长头发。2What did you see that night？你那晚看到了什么？ Im not sure，but it cant be a dog.It was bi

13、gger.I think it might be a bear or a wolf.我不确定，但它不可能是只狗。它要更大，我 想它可能是只熊或狼。3 Where is Jean？简在哪儿？ Im not sure.She might be in the laboratory.我不知道。她可能 在实验室。4Everyone is going to the pool after school.大家放学后都将去游 泳池。 Really？It must be hot outdoors.真的吗？室外一定很热。5. Thats the phone.电话响了。 I wonder who it could b

14、e.我想知道会是谁。6I wonder if these are Jims glasses. 我想知道这是否是吉姆的眼镜。 They cant be his.He doesnt wear glasses. 它们不可能是他的，他从不戴眼镜。随堂练习.根据句意及首字母提示完成句子。1I feel s_ in class today because I stayed up late watching the football match last night.2We have three chemistry l_ in our school.3You can put off your c_ in t

15、he room.Its very warm here.leepyaboratoriesoat4Youd better take a s_ before going to bed.5The machine is making too much n_Could you please turn it off?howeroiseII.用适当的情态动词填空。1. Susan has bought a large house with a swimming pool. It _ be very expensive. I never even dream about it.2. Listen! Is Mr. Green giving a report in the hall? No, it _ be him. He has gone to Japan.must c