Unit 2 Topic 2 Section D 课件 2024-2025学年仁爱科普版八年级英语上册

Unit 2 Keeping Healthy Topic 2 I must ask him to give up smoking. Section D 1 Language goals By the end of the class, you will be able to 1. Learn some new words and expressions; shower, fact, in fact, unhealthy, chemical, cigarette, body,harm, disease, smoker, risk, possible, as … as possible 2. Review words and useful expressions in this topic; 3. Know more about the harm of smoking; 4. Talk about how to keep healthy, using modal verbs properly. 注意不要… 导致疾病 照顾得很好 吃太多的糖果 强迫某人做某事 发疯 惊讶地做某事 对某事感到吃惊 惊讶地 让某人惊讶的是 给某人一个惊喜 告诉某人（不）要做某事 告诉某人某事 告诉某人关于...的情况 在某方面不擅长/差 一… 就… 使某人/某事.... 使某人做某事 总是做某事 （表示赞扬或是批评） be careful not to cause illness take care of sb. very well eat too much candy force sb. to do sth. get mad be surprised to do sth. = =do sth. in surprise be surprised at sth in surprise to one’s surprise give sb. a surprise tell sb. (not) to do sth. tell sb sth = tell sth. to sb. tell sb. about sb./sth. be weak in = be bad at = do badly in = be poor at as soon as… make sb. / sth. adj. make sb. do sth. be always doing sth Revision in class Modal Verbs (Ⅱ): must/mustn’t; may; can You _________ throw litter around. He thinks smoking ______ help him relax. It _____ even cause cancer. I _____ ask him to give up smoking. _______ I borrow your newspaper and show it to my father? can May mustn’t must can Grammar 语法专讲 1.can （1）表示能力时，意为“能够，会”，could是can的过去式，意为“能；会”，表示过去的能力。 eg. —Can you play the piano?你会弹钢琴吗？ —No，I can't.不，我不会。 （2）表示允许、请求时，could比can 语气更加委婉客气，常用于“Could I / you …?”句型中，若表示同意时，用can回答而不用could。 eg. — Could I use your pen?我可以用你的钢笔吗? — Yes, you can.可以。 （3）can’t意为“不能，不会”，也可用于表示推测，意为“不可能”。 eg. Mr Smith can't be at home.史密斯先生不可能在家。 2. may (1) 表示允许、请求时用法与can相似。在回答以may引起的问句时，肯定回答一般不用may这个词，而用其他方式，如“Yes, please.”或“Certainly.”，否定回答用can’t或mustn’t, 不能用may not。 如：—May I come in？我可以进来吗？ —Sure.当然(可以)。 语法专讲 (2) 表示推测，意为“可能，也许”，常用于肯定句中,可能性较小。 eg：The watch may be Mary's. 这块手表可能是玛丽的。 3. must (1) 表示义务，意为“必须”（主观意志）；否定形式 mustn’t, 意为“禁止，不允许”“一定不要；千万别”。 在回答以must引起的问句时，肯定回答用must，否定回答用needn’t或don’t have to eg. —Must I go now？我现在必须去吗？—Yes，you must.是的，你必须去。 —No，you needn't./No，you don't have to.不，你不必 You mustn't play football on the road.你不许在公路上踢足球。 （2）must和must be 都表示揣测，意为“想必，准是，一定”，只用于肯定句中, 可能性较大。 eg. The book must be Lily's because there's her name on the cover. ▲have to do sth. 不得不/必须做某事，表示迫于外界压力或客观条件而不得不做某事 must do sth. 必须做某事, 表示主观愿望必须做某事 Practice Complete the sentences. Li Yuan was born in America. She _______ speak English very well. Cars, buses and bikes _________ stop when the traffic lights are red. You ________ play with the knife, or you________ hurt yourself. That schoolbag ________be Jim’s . His is in the desk. The book _________ be Gina’s . Look! Her name is on it. _______ you play the piano? Of course. I’m good at it. The children all like this movie. It _______ be very interesting. Are you coming to Jenny’s party? I’m not sure. I _______ go to the park with my brother. My parents are away. I _______ look after my sister at home. can must mustn’t must Can must must may may can’t _______ up late is bad for your health. How terrible! It’s ______ for your health. Don’t read ____ the sun. It will keep you ______ during the day. in Staying good Functions active 1. Listen and number the following pictures. Then Make sentences with the structures in the box. 1 2 6 5 3 4 We should take showers often. We must wash the hands before meals. We should often open the window to keep the air fresh. We mustn’t drink sour(酸的) milk. We should tidy(整理) our rooms and often sweep(扫) the floor. We mustn’t spit(吐痰) in public(在公共地方). 2. Complete the passage with the correct words. Some people think that smoking ________ ( must/can) help them relax. In fact, smoking is really __________ (healthy/unhealthy). Do you know that there ______ (is/are) over 4000 chemicals in cigarettes? These chemicals are _______ (good/bad) for our bodies. They _____ (must/can) cause cancer and other diseases. The smoke from cigarettes harms ____________ (only/ not only) smokers but also other people. It’s called “second-hand smoke” and it ______ (can/can’t) be more dangerous and has higher risks. Smokers shouldn’t use smoking to help them relax. They ______ (must/mustn’t) give up smoking as soon as possible. can unhealthy are bad can not only can must Language Points 1. in fact = as a matter of fact 事实上，实际上 e.g. In fact, eating too much candy is bad for teeth. 2. not only ... but (also) ...  不但……而且……，可以连接两个并列成分作句子的主语、谓语、宾语、表语或状语等(also通常可以省略)。 eg. Lisa not only studies well but also plays the piano well. Jack cleaned not only the floor but also the windows of the house. Mary is not only smart but friendly to people. My uncle works not only on weekdays but on weekends. ▲当连接两个并列的主语时，谓语动词要和邻近的主语在人称和数上保持一致, 即“就近原则”。 eg. Not only the students but the teacher likes TFBOYS. Not only you but also I like eating ice cream very much now.  Language Points 3. shower n.&v. 淋浴 take showers/ take a shower 淋浴 4. smoke n./v. 烟；抽烟 smoker n.吸烟者 5. harm 1) v. 危害，伤害 eg. The second-hand smoke harms us. 2) n. 危害，伤害 do harm to = be bad for 对…有害 eg. Smoking does harm to everybody. 3) harmful adj. 有害的 be harmful to...= do harm to = be bad for 对…有害 eg. Eating too much meat is harmful to/does harm to/is bad for our bodies. Language Points 6. second-hand 二手的 e.g. second-hand car 二手车 second-hand toy 二手玩具 second-hand house 二手房 7. possible adj.可能的，能做到的 反义词 impossible 不可能的 It’s possible (for sb.) to do sth. as + adj./adv. + as possible 尽量…地 eg. They must give up smoking as soon as possible. You must go home as quickly as possible. It’s possible for him to finish the work in two days. 8. use sth. to do sth. = use sth for doing sth. 用...去做... eg. We use computers to do lots of work. =We use computers for doing lots of work. Language Points 9. risk n. 危险; 风险; 冒险 常用短语: at risk 有危险，处于危险之中 at the risk of ... 冒着……的风险 take a risk 冒险 take the risk of doing ... 冒险做…… v. 使……冒风险；冒……风险 risk sth./doing sth. 冒险做…… e.g. He risked his life to save the boy. They may even risk losing all their money. Project 1. Choose the answer to each question according to your lifestyle. ( )1.How often do you walk to school? A. Never. B. Sometimes. C. Always. ( )2.How often do you eat candy? A. Often. B. Seldom. C. Never. ( )3.How long do you usually sleep at night? A. Less than 7 hours. B. More than 10 hours. C. 7-10 hours. ( )4.How often do you exercise? A. Less than three times a week. B. Three to six times a week. C. Every day. ( )5.How often do you eat fruit and vegetables? A. Never. B. Seldom. C. Often. ( )6.How long do you watch TV every day? A. More than 4 hours. B. 2-4 hours. C. Less than 2 hours. Testing how healthy you are Scores: A = 1 point B = 2 points C = 3 points Total score: _________ Conclusion What you should do to keep healthy. (6-9) Unhealthy (10-13) Just so-so (14-18) Healthy How to keep a healthy life? As we know, it's important for us to keep healthy. But do you know how to do it ? First, we need to have good eating habits. We should have our meals on time. We should eat healthy food like fruit and vegetables. We shouldn’t eat too much candy, chocolate. Ice-cream tastes good but it’s bad for our health. Next, doing more sports can help us keep fit. We can do some exercise such as running, swimming and ball games. Then, be happy. Happiness is the best medicine. Also, it's necessary to have enough sleep, so don't stay up late at night. Last but not least, we should open the windows to keep the air fresh as often as possible. I'm sure that we'll keep healthy if we follow these suggestions. 2. Write a passage about how to keep healthy. You may use the questions above as a guide. 洗淋浴 帮助某人放松 事实上 超过，大于 少于；不到 对……有益/有害 危害/伤害某人 不但A而且B 二手烟 使用A去做B 尽可能……的/地 过着健康幸福的生活 有危险，处于危险之中 冒着……的风险 冒险做…… take a shower =take showers help sb. relax in fact = as a matter of fact over +数词 = more than +数词 less than +数词 be good/bad for harm sb. = be harmful to...= do harm to = be bad for both A and B =not onlyA but also B second- hand smoke use sth. for doing sth. = use sth. to do sth. as+adj/adv as possible = =as adj./adv. as sb. can live a healthy and happy life at risk at the risk of ... take the risk of doing ... = risk sth./doing sth Exercise in class 1. My sister speaks English not only in class _________at home. A. but B. or C. and D. so 2. Mr. Li looks young, but _________he is more than fifty. A.at last B. at least C.in fact D. at first 3. Please keep the door__________ . It’s a little hot here. A.open B. be open C. opened D. opening 4. Not only the students but also the teacher ________ TFBOYS. A.like B. likes C. liking D. to like 5. Ask the old woman, she _______ know something about it. A. can B .may C. maybe D. may be 6. –Must I stay at home and look after the cat? --- No, you __________. A. mustn’t B. won’t C. can’t D. needn’t. 7. -- _____ I take some photos here? -- No, you __________. A. can; needn’t B. Must; mustn’t C. Could ; won’t D. May; mustn’t 8. If the traffic light is red, you _____ cross the road. It’s very dangerous. A. don’t B. mustn’t C. needn’t D. wouldn’t 9. Mary _________ be at home. I saw her reading in the library just A.must B. may C.can’t D. mustn’t 10. It’s raining hard outside. So we ______ stay in the classroom. A. must B. have to C. may D. had to 11.Could you give the book to me? Of course I___________. A.could B. can C. may D. must B C A B B D D B C B A 根据汉语提示完成句子。 1. 她不仅很会弹钢琴，而且还会作曲。 She can __________ __________ play the piano well, __________ __________ write music. 2. 你最好尽快把那本书给我。 You’d better give the book to me __________ __________ __________ __________. 3. 他不得不放弃在中国教英语，因为他要回美国了。 He has to __________ __________ __________ English. in China, because he’s returning to America. 4. 我原以为大卫是在学校，但事实上他在网吧。 I thought David was at school, but __________ __________ he was in the net bar. 5. 许多人不应该用喝酒来帮助他们放松。 Many people shouldn’t __________ drinking __________ __________ them relax. not only but also as soon as possible give up teaching in fact use to help Exercises We learn: 1. To master Some new words and useful expressions: shower, fact, in fact, unhealthy, chemical, cigarette, body,harm, disease, smoker, risk, possible, as … as possible … We can: 1. Talk about healthy or unhealthy eating habits. 2. Give others some advice about eating habits.. Summary Homework 1. Read the passage in 2 aloud and fluently and finish the workbook. ( Levels A, B & C) 2. Make the letter you wrote to your father before better. ( Levels A & B ) 3. Summary the ways to keep healthy and sort them. (Level A) 4. Optional: Read the pictures and take notes. 5. Preview next section Other 66637.055 $$