人教版九年级上册 初三 英语Unit8SectionA4a-4c课件

1、Unit 8It must belong to Carla.Section A 4a-4cTranslate the phrases.outside the window have fun next-door neighbor at first run away feel uneasy have no idea have fun (in) doing sth. 在窗外玩得高兴隔壁邻居最初； 首先逃跑心神不安一点不知道； 没办法做某事很愉快Review It could be _. It also might be _.Can you guess what it is?Three birdsa

2、beautiful faceCan you guess what it is? It could be _. It also might be _.a white vasetwo facesIt could be _.It also might be _.Can you guess what it is?a dogtwo girlsCould A be bigger than B?In fact, A and B must be _ _.ABthe same sizeNo.Which one is bigger, A or B?Whose volleyball is this?It must

3、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, nut it cant be a dog. It was bigger. I think it might be a bear or a wolf.Grammar FocusUse “must” to show that you think

4、something is probably true.Use “might” or “could” to show that you think something is possibly true.Use “cant ” to show that you are almost sure something is not true.Grammar Whose volleyball is this? It must be Carlas. She loves volleyball. Whose book is this? It must be Marys. J.K. Rowling is her

5、favorite writer. Whose hair band is this? It could be Meis. Read the sentences below, paying attention to the colored parts. Whose notebook is this? It must be Mings. It has her name on it. Whose French book is this? It could be Carols. She studies French. Whose guitar is this? It might belong to Al

6、ice. She plays the guitar.Whose T-shirt is this? It cant be Johns. It is too small for him.Read more sentences. 表示推测的情态动词 在英语中，表示对某件事物的确定程度，即表示推测的时候，我们通常会用到以下情态动词，must, might, could, may, cant, couldnt. cantcouldmight100%probably true20%-80%possibly true0almost not truemustLearn to make inference程度肯

7、定句否定句疑问句must may might/could cant/can can和could的区别和用法1. can表示体力和脑力方面的能力, 或根据客观条件能做某种动作的“能力”。 例如：Can you speak English？ Can you make a cake？ can用在否定句和疑问句中时有时表示说话人的 “猜测”或 “不肯定”。Can the news be true？(在日常会话中, can可代替may表示“允许”, may比较正式)2. could 是 can的过去式，表示过去有过的能力和可能性，还有怀疑和不肯定的意思(在否定和疑问句中)。She couldnt ska

8、te when she was five years old. （能力）At that time we thought the story could be true. （可能性） could用来提问, 是有礼貌的请求 Could. Please? 语气较为婉转。Could I speak to Mr. Smith, please?Might和may的区别和用法: 1. may的用法: a. 表示“允许”或“请求”。May I come in？ 在使用这一用法时需注意: may表示“允许”的否定形式是must not, 意思是“不应该” “不许可”。 May I take this book

9、out of the reading-room？ No, you mustnt b. 表示说话人的猜测，认为某一事情“或许”或“可 能”发生。He may know the answer c. may用在感叹句中可表示祝愿、愿望。 May you succeed(祝你成功。)May you have a pleasant journey(一路平安。) 2. might的用法: a. might可以代替may, 表示现在时间的动作，但语气较为婉转客气或更加不肯定。Might I take a suggestion？ b. might用来表示现在时间时, 还可表示“规劝”。You might pa

10、y more attention to spoken English must与have to的区别have to比较强调客观需要，must着重说明主观看法。另外have to能用于更多时态, 比较下面的句子：We had to be there at 10:00. 有时两者都可以用, 意思差别不大。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may肯定得多, 相当于汉语的“一定”或“是”。(只有在肯定句中能这样用。) This must be your room 在回答由must引起的问题时, 如果是否定的答复，不能用mustnt,

11、而需要用neednt 或 dont have to, 因为mustnt是“一定不要”的意思。1. I didnt hear the phone. I _ a sleep. A. must be B. must have been C. should be D. should have been2. Mary _ be in Paris. I saw her in town only a few minutes ago. A. mustnt B. shouldnt C. cant D. may notBCChoose the best answer.3. Peter _ come with us

12、 tonight, but he isnt very sure yet. A. must B. may C. can D. will4. I thought you _ like something to read, so I have brought you some books. A. may B. might C. could D. mustBB1. Are you going to Beijing by plane? Its fast, but expensive. So I am not sure. I _ take a train. A. should B. may C. must

13、 D. will 2. Is John coming by train? He should, but he _ not. He likes driving his car A. mustB. canC. may D. need1. Whose book is this? It must be Marys. It must belong to Mary.3. The hair band might belong to Linda. might be Lindas.2. Whose French book is this? It could be Alis. She studies French

14、.4. The T-shirt cant be Johns. Its much too small for him.(肯定; 一定)(可能)(可能)(不可能)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. B: Really? It _ (must be / cant be / could be) hot outdoors.might bemust be4a Choose th

15、e best way to complete each sentence using the words in the brackets.3. 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.5. A: I hear water running in the bat

16、hroom. B: It _ (could be / must be / cant be) Carla. She was thinking of taking a shower.could becant bemust be1. A: Many people are wearing coats. B: The weather must be_ .2. A: Sally has been coughing a lot. B: She might be_ . A: This restaurant is always crowed. B: The food _ .4. A: Whenever I tr

17、y to read this book, I feel sleepy. B: It cant _.be interesting coldillmust be delicious4b Complete there responses.4c 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.A: It could

18、 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.Look at the two rooms below. Make guesses about the owner of each room. Whos singing in the next room? It _ be her. She has gone to New York. A. cant B. must C. shouldnt D. ca

19、n【解析】考查情态动词表推测。表示否定推测时，用cant，意为“一定不”。must表示推测时，意为“一定”，用于肯定句；根据答语“她已经去了纽约”可知是否定推测，故选A。ExercisesWhose T - shirt is this?It _ be Johns. Its _ small for him. A. cant; much too B. cant; too much C. mustnt; much too D. mustnt; too much【解析】情态动词的用法。根据句意“它不可能是约翰的，对他来说太小了。”故排除C、D，too much为“太多”的意思，much too为“太”

20、。故选A。 Where are you going this month? We_ go to Xiamen, but were not sure. A. neednt B. must C. might D. mustntC【解析】 neednt (不必)表建议； must (一定)表猜测的可能性很大； might (可能，也许)表不是很肯定的猜测。 mustnt(不允许)表命令。句意：这个月你们将去哪？ 我们或许去厦门，但还不确定。 Have you decided where to go for your summer vacation? Not yet. We _ go to Qingd

21、ao. Its a good place for vacation. A. may B. need C. must A【解析】句意： 你已经决定到哪里过暑假了吗？ 还没有呢，我们也许去青岛，那是个度假的好地方。情态动词表示推测时，may表“可能”，must表“一定”，cant表“不可能”。 Must I water the flowers now, mum? No, you _. You _ do it later. A. mustnt; must B. mustnt; may C. neednt; may D. neednt; must _ I know by what time you w

22、ant the project to be done? By the day after tomorrow. _ you finish it on time? A. May; Can B. Must; Need C. Could; Must D. Need; Would C AWhos singing in the garden?It _ be Mr. Brown. He always practices singing at this time. A. must B. cant C. needI _ follow you. Would you please repeat it? A. can

23、t B. mustnt C. neednt D. shouldnt A A2018年四川成都市 Wow.another gift! Whats in the box? Im not sure. It be a pair of sports shoes. A. must B. may C. willB【解析】句意：哦，另一个礼物！在盒子里面是什么？我不确定，它可能是一双运动鞋。A. must必须；B. may可能，表示没有把握的肯定推测；C. will将会。根据题意。故选B。中考链接2018年山东省青岛This book _ be Lucys. Look! Her name is on it. A. can B. may C. must D. might 【解析】句意：这本书一定是露西的，看， 她的名字在上面。A。 can 能；B. may 可能；可以； C. must 必须，一定；D. might 可能； 根据 Her name is on it. 可知一定是她的； 故选C. C2018年湖北省宜昌中考 Mum, Ive signe