1、人教版英语九 年级上册 单元课件Unit8It must belong to Carla. Unit8It must belong to Carla. 1 Focus 2 Section A-1 3 Section A-2 4 Section B-1 5. Section B-2 （单击上面课题进入对应幻灯片）6/5/2018 3Section AGrammar FocusTranslate the phrases.outside the window have fun next-door neighbor at first run away feel uneasy have no idea
2、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- 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 could be Meis. Read the sentences below, paying attention t
3、o 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-shirt is this?- It cant be Johns. It is too small for him.Read
4、 more sentences.mustcantcouldmight100%probably true20%-80%possibly true0almost not true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。 一 . 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 ”。 Can you speak English？ 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
5、 ”。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 skate 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, p
6、lease?二 . 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 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
7、 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 offer a suggestion？ b. might用来表示现在时间时 , 还可表示 ”规劝 ”。You might pay more attention to spoken English. 三 . 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：My brother was seriously il
8、l, so I had to call the doctor in the middle of the night. (客观上需要做这件事 ) He said that they must work hard. （主观上要做这件事）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，它比 may肯定得多 , 相当于汉语的 “一定 ”或 “准是 ”。 (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, 而需要用ne
9、ednt或 dont have to, 因为 mustnt是“一定不要 ”的意思，表示禁止。- Must I hand in my homework now?- No, you neednt.情态动词表示推测可以分为以下几种情况 : 情态动词 + do此结构表示对现在或将来情况的推测和判断Do you know where she is now?I think she might travel in Beijing. 情态动词 + be doing此结构表示对现在或将来正在进行的情况的推测和判断。At this moment, my father cant be working in the
10、office. 情态动词 + have done此结构表示对过去情况的推测和判断。The road is wet. It must have rained last night. 情态动词 + have been doing此结构表示对过去正在进行的情况的推测和判断。Your mother must have been looking for you at that moment.根据句意 , 从方框中选择正确的情态动词填空 , 每项限用一次。should, must, cant, may not, mustnt1. That _ be Lucy. She has gone to Beijin
11、g on business.2. There _ be something wrong with my watch. It isnt working now.cantmust3. He _ know the answer, either. Lets ask that policeman. 4. You _ swim in the river. Its dangerous. 5. You _ look after your parents when they become older. Its your duty. may notmustntshould用 must, might, could或
12、 cant 填空1.The toy car _ be Jims. He is the only kid at the picnic. 2. This Mp5 _ be Lindas. I know she has one.3. The mobile phone _ belong toLucy or Lily. They both have mobilephones. 4. The man _ be Mr Smith. He has gone to Shanghai and hell be back in three days. mustcould / mightcould / mightcan
13、t2018/6/5 224a Choose the best way to complete each sentence using the words in brackets.The keys:might be could becould be can becould be2018/6/5 231. 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 crow
14、ded.B: The food _.4. A: Whenever I try to read this book, I feel sleepy.B: It cant _.4b Complete these responses.might becould becould becould be2018/6/5 24Look at the two rooms below. Make guesses about the owner of each room.【 浙江湖州 】 Whos singing in the next room? It _ be her. She has gone to New
15、York.A. cant B. must C. shouldnt D. can【 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。【 2011湖北黄冈 】 41. Whose T - shirt is this?It _ be John s. 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
16、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 ”。故选 A。2018/6/5 27【 2013天津 】 Where are you going this month? We_ go to Xiamen, but were not sure.A. neednt B. must C. might D. mustnt【 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
17、将去哪？ -我们或许去厦门，但还不确定。C2018/6/5 28【 2013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 】 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 ”。A2018/6/5 29【 2
18、014铜仁 】 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【 2014连云港 】 _ I know by what time you want 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; WouldCA2018/6/5 30【 2014长沙 】 Whos singing in the garden?It _ be Mr. Brown. He always practices singing at this time.A. must B. cant C. need【 2014河北 】 I _ follow you. Would you please repeat it? A. cant B. mustnt C. neednt D. shouldnt AA
