1、Section A Grammar Focus 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 玩得高兴玩得高兴 隔壁邻居隔壁邻居 最初；最初； 首先首先 逃跑逃跑 心神不安心神不安 一点不知道；一点不知道； 没办法没办法 做某事很愉快做某事很愉快 - Whose volleyball is this? - It must be Carlas. She l
2、oves 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 to the colored parts. - Whose notebook is this? - It must be Mings. It has her name on it. - Whose French book is
3、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 more sentences. must cant could might 100% probably true 20%-80% possibly true 0 almost not true 表示推测的情
4、态动词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，在英语中，表示对某件事物的确定程度， 即表示推测的时候，我们通常会用到以即表示推测的时候，我们通常会用到以 下情态动词下情态动词: must, might, could, may, cant, couldnt。 一一. can和和could的区别和用法的区别和用法 1. can表示体力和脑力方面的能力表示体力和脑力方面的能力, 或根据客或根据客 观条件能做某种动作的“能力”。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用在否定句和疑问句中时有时表示说 话人的话人
5、的 “猜测”或“猜测”或 “不肯定”。“不肯定”。 Can the news be true？ (在日常会话中在日常会话中, can可代替可代替may表示“允表示“允 许”许”, may比较正式比较正式) 2. could 是是 can的过去式的过去式, 表示过去有过的能力表示过去有过的能力 和可能性和可能性, 还有怀疑和不肯定的意思还有怀疑和不肯定的意思(在否定和在否定和 疑问句中疑问句中)。 She couldnt skate when she was five years old. （能力）（能力） At that time we thought the story could be t
6、rue. （可能性）（可能性） could用来提问用来提问, 是有礼貌的请求是有礼貌的请求 Could Please? 语气较为婉转。语气较为婉转。 Could I speak to Mr. Smith, please? 二二. might和和may的区别和用法的区别和用法: 1. may的用法的用法: a. 表示”允许”或”请求”。表示”允许”或”请求”。 May I come in？ 在使用这一用法时需注意在使用这一用法时需注意: may表示“允许”表示“允许” 的否定形式是的否定形式是must not, 意思是“不应该、意思是“不应该、 不许可”。不许可”。 May I take thi
7、s book out of the reading room? No, you mustnt. b. 表示说话人的猜测，认为某一事情“或表示说话人的猜测，认为某一事情“或 许”或“可能”发生。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。用在感叹句中可表示祝愿、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, 表示现在时间的动表示现在时间的动 作，但语气较
8、为婉转客气或更加不肯定。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用来表示现在时间时, 还可表示”还可表示” 规劝”。规劝”。 You might pay more attention to spoken English. 三三. must与与have to的区别的区别 have to比较强调客观需要比较强调客观需要, must着重说着重说 明主观看法，另外明主观看法，另外have to能用于更多时态。能用于更多时态。 比较下面的句子：比较下面的句子： My brother was seriously ill
9、, so I had to call the doctor in the middle of the night. (客观上需要做这件事客观上需要做这件事) He said that they must work hard. （主观上要做这件事）（主观上要做这件事） 有时两者都可以用有时两者都可以用, 意思差别不大。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，它在表示说话人对事物的推测时，它 比比may肯定得多肯定得多, 相当于汉语的“一定”或相当于汉语的“一定”或 “准是”。“准是”。(只有在肯定句中能这样用。只有在肯定句中能
10、这样用。) This must be your room. 在回答由在回答由must引起的问题时引起的问题时, 如果是否如果是否 定的答复，不能用定的答复，不能用mustnt, 而需要用而需要用 neednt或或dont have to, 因为因为mustnt是是 “一定不要”的意思，表示禁止。“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表示推测可以分为以下几种情况: 情态动词情态动词+ do 此结构表示对现在或将来情况的推测和判断此结构表示对现在或将来情况的
11、推测和判断 Do you know where she is now? I think she might travel in Beijing. 情态动词情态动词+ be doing 此结构表示对现在或将来正在进行的情况的此结构表示对现在或将来正在进行的情况的 推测和判断。推测和判断。 At this moment, my father cant be working in the office. 情态动词情态动词+ have done 此结构表示对过去情况的推测和判断。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 ni
12、ght. 情态动词情态动词+ have been doing 此结构表示对过去正在进行的情况的推测此结构表示对过去正在进行的情况的推测 和判断。和判断。 Your mother must have been looking for you at that moment. 根据句意根据句意, 从方框中选择正确的情态动词从方框中选择正确的情态动词 填空填空, 每项限用一次。每项限用一次。 should, must, cant, may not, mustnt 1. That _ be Lucy. She has gone to Beijing on business. 2. There _ be
13、something wrong with my watch. It isnt working now. cant must 3. 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 not mustnt should 用用must, might, could或或cant 填空填空 1.The toy c
14、ar _ 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 to Lucy or Lily. They both have mobile phones. 4. The man _ be Mr Smith. He has gone to Shanghai and hell be back in three days. must could / might could / might cant 4a4a Choose
15、 the best way to complete each sentence using the words in brackets. The keys:The keys: might be could be could be can be could be 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 crowded. B: The fo
16、od _. 4. A: Whenever I try to read this book, I feel sleepy. B: It cant _. 4b4b Complete these responses. might be could be could be could be Look 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 next room? It _ be her. She has gone to New York. A. ca
17、nt B. must C. shouldnt D. can 【解析解析】考查情态动词表推测。表示否定推测考查情态动词表推测。表示否定推测 时，用时，用cant，意为“一定不，意为“一定不”。must表示表示 推测时，意为“一定推测时，意为“一定”，用于肯定句；根，用于肯定句；根 据答语“她已经去了纽约”可知是否定推测，据答语“她已经去了纽约”可知是否定推测， 故选故选A。 【2011湖北黄冈湖北黄冈】41. Whose T - shirt is this? It _ be John s. Its _ small for him. A. cant; much too B. cant; too m
18、uch C. mustnt; much too D. mustnt; too much 【解析解析】情态动词的用法。根据句意“它不可情态动词的用法。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，为“太多”的意思，much too为为 “太”。故选“太”。故选A。 【2013天津天津】 Where are you going this month? We_ go to Xiamen, but were not sure. A. neednt B. must C. might D. mustnt 【解析解析】
19、neednt (不必不必)表建议；表建议； must (一一 定定)表猜测的可能性很大；表猜测的可能性很大； might (可能，也可能，也 许许)表不是很肯定的猜测。表不是很肯定的猜测。 mustnt(不允许不允许) 表命令。句意：表命令。句意：-这个月你们将去哪？这个月你们将去哪？- 我们或许去厦门，但还不确定。我们或许去厦门，但还不确定。 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 v
20、acation. A. may B. need C. must 【解析解析】句意：句意：- 你已经决定到哪里过暑假你已经决定到哪里过暑假 了吗？了吗？- 还没有呢，我们也许去青岛，那是还没有呢，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，个度假的好地方。情态动词表示推测时， may表“可能”，表“可能”，must表“一定”，表“一定”，cant表表 “不可能”。“不可能”。 A 【2014铜仁铜仁】 Must I water the flowers now, mum? No, you _. You _ do it later. A. mustnt; must B. mustnt;
21、 may C. neednt; may D. neednt; must 【2014连云港连云港】 _ 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; Would C A 【2014长沙长沙】Whos singing in the garden? It _ be Mr. Brown. He always practices singing at this time. A. must B. cant C. need 【2014河北河北】I _ follow you. Would you please repeat it? A. cant B. mustnt C. neednt D. shouldnt A A
