Unit 4 Exploring literature Grammar and usage 课件-2025-2026学年高中英语牛津译林版必修第二册

该高中英语课件聚焦情态动词用法，以“如何选书”为导入话题，通过选书文章语料引导学生提取情态动词，分析其表达建议、必要性等功能，进而总结特征规则，构建“语料输入-功能分析-规则提炼”的学习支架。 其亮点在于依托真实语境（选书文章）和任务链（填空、辨析练习），融合语言能力（理解运用情态动词）与思维品质（辨析同一情态动词的不同功能）。如B1练习区分can表请求与能力，B2结合阅读日记填空提升运用能力。学生能在语境中掌握语法，教师可借助结构化活动提高教学效率。

Grammar and usage Unit 4 Exploring literature Learning aims: Identify and categorize the usage of modal verbs; Summarize general rules of modal verbs; Distinguish and use the right modal verbs to finish tasks of offering suggestions and making rules. Lead-in How do you choose books? 3 Presentation Below is an article about how to choose books. 4 Read the article and fill in the chart below The author’s viewpoint Get ideas from _______________. Develop ____________________. different sources your own taste ◆ ________________________________________________ _______________________________________________ ◆ ________________________________________________ ________________________________________________ ◆ ________________________________________________ ◆ ________________________________________________ Ask your friends, parents and teachers to recommend what books you ought to read. Read book reviews in newspapers, in magazines or online. Decide for yourself what kind of books to read. Look for books on topics that interest you. 5 working out the rules 6 working out the rules 情态动词 情感 态度 情态动词，即表示人的情感和态度的动词。 7 The features of Modal verbs 情态动词的特征 没有人称和数的变化; 其否定形式在后面直接加not 情态动词后接动词原形 8 What Modal Verbs do you know? Modal verbs could may might shall should ought to must would will can 9 can & could 1. 表能力 He can eat a bucket of rice. 2. 表推测，“可能” ，用于疑问句或否定句 Can/Could I use your dictionary? Could you lend me a hand? 3. 表请求或许可（表请求时，could比can语气更委婉） I think it can’t be true. Can the news be true? 10 may & might 1.表许可或征询对方许可 May I come in? Where is he from? He may/might from Chenzhou. 2.表把握不大的推测，“或许”、“可能”。 常用于肯定句，might比may可能性小 (口语中常用might代may表委婉语气) Yes, you may. No, you mustn’t. / 11 Would you give me some advice? will & would (1) 表示习惯性动作。 will 表示现在的习惯，would 表示过去的习惯。 Mary will listen to music for hours in her room. I would take a walk after supper when I was young. (2) 表示意愿。 The baby won’t go to sleep. (3) 表示请求，would 比 will 更委婉些。 12 must (1) 表示必要性。 must 意为“必须”，否定式mustn't 表示“不许”。 I must go now. You mustn't forget your ticket. 13 ought to 表义务，意为“应该”（因责任、义务等该做），语气比should稍重。 你是他的父亲，你应该照顾他。 你应该建更多的图书馆。 You are his father. You ought to take care of him. You ought to build more libraries. 14 should (2)表较大可能实现的猜测，推断，意为“可能，应该” 你应该按时完成你的测验。 周末这条街应该很拥挤。 (1)表责任或义务，应该，应当 You should complete your test in time. The street should be crowed at weekends. 15 shall 我帮你搬箱子好吗? 你将得到这本杂志。 他将按照我告诉他的去做。 学生考试时不得使用计算器。 (1) 在疑问句中，表示建议或征求意见。 Shall I help you with the box? (2) 表示承诺或要求 You shall have the magazine. He shall do as I tell him. (3) 用于正式文件、法律、规章制度等，表示规定。 Students shall not use calculators during exams. 16 补充： We need to finish the job before dark. You needn’t hurry as there’s plenty time left. He dared to travel abroad when he was young. How dare you let your little child go out alone? 我们必须在天黑前完成这项工作。 你不必着急，还剩下很多时间。 他年轻时敢于出国旅行。 你怎么敢让你的小孩单独出去? dare ( 敢于，敢 )与 need（需要） dare 和 need 作为情态动词，常用于疑问句和否定句中。同时也可用作实义动词。实义动词随主语变化，情态动词后接动词原形 17 注意： 情态动词 + 进行式 + 完成式 + 被动式 (情态动词+ be + doing) (情态动词+ have + done) (情态动词+ be + done) Jack may be reading in the library. Tom must have arrived home by now. The road may be blocked. 18 19 Suggestion Ability Necessity Possibility What shall I read? ...you can get ideas from different sources... You could also read book review in nespapers, in magazines or online. Teachers in particular can provide suggestions for interesting reading materials that can be found in the library or bookshop easily. A book review can often tell you wether a book is worth reading or not. ...what books you ought to read. However, you must also decide for yourself what kind of books to read. You do not have to read a book just because everyone recommends it. You might have asked yourself this question more than once. These ideas should point you in the right direction. ...you may find yourself better able to seek out books to your taste... 20 Working out the rules Modal verbs can express ability or necessity. They can also make suggestions or describe the probability of an event. The same modal verb have different functions. Modal verbs can be followed by . *You can choose some more than one answer for the blank. a do (the base form) b doing (the v-ing form) c did (the past form) d be done (the passive voice) e be doing (the continuous form) f have done (the perfect form) a d e f 21 B1 For the following groups of three sentences, tick the sentence which uses the modal verb differently from the other two. a Can I keep the book for more than two weeks? b Nick can read more in an afternoon than I can in a week! c Can Mary finish War and Peace in a month? a I am afraid I may be unable to finish this novel today. b It may be difficult for people to agree on what good literature is. c You may go to the library tomorrow afternoon, if you have time. √ √ request ability ability possibility possibility suggestion 22 a I must finish writing the book review and hand it in before Wednesday. b You must be tired after three hours’ reading. c Students must develop the habit of reading classic literature. a Henry should be reading books in the library. b I have fifty dollars—that should be enough for three books. c Reading English novels has greatly increased my vocabulary — you should try it too. √ √ necessity possibility necessity possibility possibility suggestion 23 B2 Below is an entry in a student’s reading journal. Complete the entry with the correct model verbs in brackets. When my English teacher suggested that I read Charles Dickens’s A Christmas Carol, I thought, “I (1) (can’t/shouldn’t) read this! It (2) (has to/must) be very boring.” Surprisingly, it turned out the exact opposite. I (3) (could/might) not stop turning the pages! The book’s main character is Scrooge, a rich but mean old man. He hates all kinds of celebrations. On Christmas eve, he is transported to different points in his life by three spirits. In the end, he reflects on these moments and realizes his mistakes. Then he decides that he (4) (might/must) change himself. can’t must could must 24 On Christmas morning, he sends a large turkey to a poor man for Christmas dinner. He also tries to make his family and friends happy by spending time with them. There is something that (5) (can/must) be learnt from A Christmas Carol: we (6) (should/may) treat others with kindness, generosity and love. I think everyone (7) (would/ought to) read this book. can should ought to 25 THANKS $