九年級英語上Unit8 Grammar focus-4c

1、 Period 3 4a-4cGrammar focusSectionAUnit 8 It must belong to Carla.Translate the phrases.outside the window have fun next-door neighbor at first run away feel uneasy have no idea have fun (in) doing sth. 在窗外在窗外玩得高興玩得高興隔壁鄰居隔壁鄰居最初；最初； 首先首先逃跑逃跑心神不安心神不安一點不知道；一點不知道； 沒辦法沒辦法 做某事很愉快做某事很愉快 It could be _. It

2、also might be _.Can you guess what it is?Three birdsa 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 girlsWhose volleyball is this?It must be Carlas. she loves volleyball.Whose hair ban

3、d 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 Focus Use “must” to show that you think something is probably true.Use “might” or “co

4、uld” to show that you think something is possibly true.Use “cant ” to show that you are almost sure something is not true.- Whose volleyball is this?- It must be Carlas. She loves volleyball.- Whose book is this?- It must be Marys. J.K. Rowling is her favorite writer.- Whose hair band is this?- It c

5、ould 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 Alice. She plays the guitar.- Whose T-shir

6、t is this?- It cant be Johns. It is too small for him.Read more sentences.cantcouldmight 表示推測的情態(tài)動詞表示推測的情態(tài)動詞 在英語中，表示對某件事物的確定程在英語中，表示對某件事物的確定程度，即表示推測的時候，我們通常會用度，即表示推測的時候，我們通常會用到以下情態(tài)動詞，到以下情態(tài)動詞，must, might, could, may, cant, couldnt. Learn to make inference程度程度肯定句肯定句 否定句否定句 疑問句疑問句must may might/could ca

7、ntcan一一. can和和could的區(qū)別和用法的區(qū)別和用法1. can表示體力和腦力方面的能力表示體力和腦力方面的能力, 或根據(jù)客觀或根據(jù)客觀條件能做某種動作的條件能做某種動作的“能力能力”。 例如：例如：Can you speak English？ Can you make a cake？ can用在否定句和疑問句中時有時表示說用在否定句和疑問句中時有時表示說話人的話人的 “猜測猜測”或或 “不肯定不肯定”。 Can the news be true？(在日常會話中在日常會話中, can可代替可代替may表示表示“允許允許”, may比較正式比較正式)2. could 是是 can的過去

8、式的過去式, 表示過去有過的能力表示過去有過的能力和可能性和可能性, 還有懷疑和不肯定的意思還有懷疑和不肯定的意思(在否定在否定和疑問句中和疑問句中)。 She couldnt skate when she was five years old. （能力）（能力） At that time we thought the story could be true （可能性）（可能性） could用來提問用來提問, 是有禮貌的請求是有禮貌的請求 Could. Please? 語氣較為婉轉(zhuǎn)。語氣較為婉轉(zhuǎn)。 Could I speak to Mr. Smith, please?二二. Might和和ma

9、y的區(qū)別和用法的區(qū)別和用法: 1. may的用法的用法: a. 表示表示”允許允許”或或”請求請求”。 May I come in？ 在使用這一用法時需注意在使用這一用法時需注意: may表示表示“允許允許”的否定形式是的否定形式是must not, 意思是意思是“不應該不應該” “不許可不許可”。e. g.May I take this book out of the reading-room？No, you mustnt b. 表示說話人的猜測，認為某一事情表示說話人的猜測，認為某一事情“或或許許”或或“可能可能”發(fā)生。發(fā)生。He may know the answer c. may用在感

10、嘆句中可表示祝愿、愿望。用在感嘆句中可表示祝愿、愿望。 May you succeed(祝你成功。祝你成功。)May you have a pleasant journey(一路平安。一路平安。) 2. might的用法的用法: a. might可以代替可以代替may, 表示現(xiàn)在時間的動作，表示現(xiàn)在時間的動作，但語氣較為婉轉(zhuǎn)客氣或更加不肯定。但語氣較為婉轉(zhuǎn)客氣或更加不肯定。 Might I take a suggestion？ b. might用來表示現(xiàn)在時間時用來表示現(xiàn)在時間時, 還可表示還可表示”規(guī)規(guī)勸勸”。You might pay more attention to spoken En

11、glish 三三. must與與have to的區(qū)別的區(qū)別have to比較強調(diào)客觀需要比較強調(diào)客觀需要, must著重說明主觀看法。著重說明主觀看法。另外另外have to能用于更多時態(tài)能用于更多時態(tài), 比較下面的句子：比較下面的句子：We had to be there at 10:00. 有時兩者都可以用有時兩者都可以用, 意思差別不大。意思差別不大。We must have to leave now. must在表示說話人對事物的推測時候要注意它在表示說話人對事物的推測時候要注意它比比may肯定得多肯定得多, 相當于漢語的相當于漢語的“一定一定”或或“是是”。(只有只有在肯定句中能這樣

12、用。在肯定句中能這樣用。) This must be your room 在回答由在回答由must引起的問題時引起的問題時, 如果是如果是否定的答復，不能用否定的答復，不能用mustnt, 而需要用而需要用neednt或或dont have to, 因為因為mustnt是是“一定不要一定不要”的意思。的意思。Choose the best answer1. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have been2. Mary _ be in Paris.

13、I saw her in town only a few minutes ago. A. mustnt B. shouldnt C. cant D. may notBC3. Peter _ come with us 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 goi

14、ng to Beijing by plane? - Its fast, but expensive. So I am not sure. I _ take a train. A. should B. may C. must D. will 2. - Is John coming by train? - He should, but he _ not. He likes driving his car A. must B. can C. may D. need感悟中考感悟中考3. - _ I swim in that river? - No, you _. Its dangerous to sw

15、im in it. A. Must, cant B. Can, may not C. May, mustnt4. The students _ play basketball after school every day. A. allow to B. are allowed to C. were allowed to感悟中考感悟中考1. - 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. - Who

16、se French book is this? - It could be Alis. She studies French.4. The T-shirt cant be Johns. Its much too small for him.(肯定肯定; 一定一定)(可能可能)(可能可能)(不可能不可能)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

17、 _ (must be / cant be / could be) hot outdoors. Choose the best way to complete each sentence using the words in the brackets.might bemust be4a3. 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 / c

18、ould be) his. He doesnt wear glasses.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 becant bemust beComplete these responses.1. A: Many people are wearing coats. B: The weather must be_ .2. A: Sally has been coughin

19、g a lot. B: She might be_ .A: This restaurant is always crowed. B: The food _ .4. A: Whenever I try to read this book, I feel sleepy. B: It cant _.be interesting coldillmust be delicious4b 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? W

20、hat 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.4cLook at the two rooms below. Make guesses about the owner of each room.【浙江湖州浙江湖州】 Whos singing in the n

21、ext room? It _ be her. She has gone to New York. A. cant B. must C. shouldnt D. can【解析解析】考查情態(tài)動詞表推測。表示否定推測考查情態(tài)動詞表推測。表示否定推測時，用時，用cant，意為，意為“一定不一定不”。must表示表示推測時，意為推測時，意為“一定一定”，用于肯定句；根，用于肯定句；根據(jù)答語據(jù)答語“她已經(jīng)去了紐約她已經(jīng)去了紐約”可知是否定推測，可知是否定推測，故選故選A。【2011湖北黃岡湖北黃岡】41. Whose T - shirt is this? It _ be John s. Its _ sma

22、ll for him. A. cant; much too B. cant; too much C. mustnt; much too D. mustnt; too much【解析解析】情態(tài)動詞的用法。根據(jù)句意情態(tài)動詞的用法。根據(jù)句意“它不可它不可能是約翰的，對他來說太小了。能是約翰的，對他來說太小了?！惫逝懦逝懦鼵、D，too much為為“太多太多”的意思，的意思，much too為為“太太”。故選。故選A。【2013天津天津】 Where are you going this month? We_ go to Xiamen, but were not sure. A. neednt B

23、. must C. might D. mustnt【解析解析】 neednt (不必不必)表建議；表建議； must (一定一定)表猜測的可能性很大；表猜測的可能性很大； might (可能，也許可能，也許)表表不是很肯定的猜測。不是很肯定的猜測。 mustnt(不允許不允許)表命令。表命令。句意：句意：-這個月你們將去哪？這個月你們將去哪？-我們或許去廈我們或許去廈門，但還不確定。門，但還不確定。C【2013福建泉州福建泉州】- Have you decided where to go for your summer vacation?- Not yet. We _ go to Qingdao. Its a good place for vacation. A. may B. need C. must【解析解析】句意：句意：- 你已