(
课件网) Module 1 Travel Unit 3 Language in use 外研九年级（下） Learning Objectives By the end of the class, we will be able to: 1. use the modal verbs correctly to give rules and suggestions; 2. do the exercises in the textbook; 3. write advice for visitors to China. Read these sentences and pay attention to these bold words. You must be careful of falling stones. You mustn’t walk too close to the edge of the hill path because you might fall and hurt yourselves. You should always wear proper clothes. Bears might think our rubbish is food. — Can we go rock climbing — No, you can’t. 1.表示命令、禁止、不得不 表达这类含义时一般用must,mustn’t, have to等。 E.g. You must study maths to be an engineer. 要当工程师，你必须学数学。 You mustn’t tell it to anyone. 你不许把这事告诉任何人。 You have to come early tomorrow. 你明天得早到。 从表意的角度总结情态动词的基本用法 2.表示许可或征求对方许可 表达允许某人做某事，或征求对方的认可，可以用can/could/may/might E.g. You can/may start your work now. 你现在可以开始工作了。 Could/May I come a little later tomorrow I don’t feel myself. 我明天可以晚到一会吗？我觉得不太舒服。 3.表示应该、义务 表示应该、义务等时常用should, ought to, must。 E.g. You should talk to your parents. 你应该跟你的父母谈谈。 I ought to train more to improve my skill. 我应该多训练来提高技巧。 4.表示能力 表达一个人能做某事时，常用情态动词can或者could表达。 E.g. My five-year-old daughter can draw a beautiful picture in five minutes. 我五岁的女儿能在五分钟之内画一幅漂亮的图画。 As soon as Mike could read, he read books about robots. 迈克刚能看懂书，就看关于机器人的书。 5.表示可能性 表达“可能、可能性”，可以用may/might或can/could。 E.g. Jane may be at home.简可能在家。 I might talk to him. 我可能会跟他说说。 You can go to Beijing by train. 你可以坐火车去北京。 6.表示请求对方做某事 表达请求对方做某事，可以用下列表达方式: Will/Would/Could you (please)... Would you mind... E.g. Would you please help me with this suitcase 你可以帮我拿这个手提袋吗？ Would you mind turning down the music 你能把音乐关小点儿声吗？ 7.表示建议和邀请 表达建议和邀请可以用下列表达方式: Would you like(to)... Shall we... E.g. Would you like to play basketball 你想打篮球吗？ Shall we go 我们走吧！ 8.表示意愿 表达想做某事可以用would like/love to... E.g. I’d like to be a scientist. 我想成为科学家。 We would like to apologize for the delay. 我们愿对延迟表示歉意。 I would love to go abroad this year, perhaps to the South of France. 我今年想去国外，可能去法国南部。 9.表示没必要做某事 表达没必要做某事常用 needn’t, don’t have to等。 E.g. You don’t have to worry about money. I can lend you some in time of need. 你不用担心钱，你需要的时候我可以借给你。 You needn’t book the tickets in advance. 你不必提前订票。 You don’t have to read everything to write. 你不必非要看完所有的书才去写作。 拓展：情态动词语气强弱排序 might表示可能性 ought to/have to表示必须，应该 can表示能力（相当于be able to） 许可（相当于may） could表示过去 ... ...
