Unit 2 Topic 2-Section D课件仁爱版英语八年级上册.pptx

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1、Topic 2 I must ask him to give up smoking.Section D,Unit 2 Keep Healthy,Language goals,By the end of the class, you will be able to1.Master the following words ,phrases and sentences:Words & phrases： shower, fact, in fact, unhealthy, chemical, cigarette, body, disease, harm, smoker, second-hand, ris

2、k, possible, asas possible2. Master the usage of may, must and can.,apples,oranges,chicken,chocolate,banana,hamburger,Look and say,meat,ice cream,rice,Look and say,sausage,eggplant,watermelon,beef,tomatoes,sandwiches,strawberry,cabbage,potato chips,Look and say,Ask and answer,I usually have for brea

3、kfast.,What do you usually have for breakfast?,Ask and answer,I usually have for lunch.,What do you usually have for lunch?,Ask and answer,I usually have for dinner.,What do you usually have for dinner?,What mother said to eat,Make sentences with should , shouldnt , had better, had better not, must,

4、 mustnt.,1. We _ eat more vegetables.2. We _ eat more fruit and less meat.3. We_ eat too much ice cream for dinner.4. We_ eat too much candy or chocolate.5.-,Modal Verbs (): must/mustnt; may; can,can,May,mustnt,must,can,Grammar,Grammar,情态动词 can，may 和 must1. can表示能力He can draw, but he cant read a sto

5、ry.他会画画，但不会读故事。表示可能The girl cant be Amy because she went to study inanother school.那个女孩不可能是埃米，因为她转学了。表示请求，允许Can I walk to school with you?我可以和你一起走去学校吗？,Grammar,2. may表示可能 I didnt see Jack in the classroom.我没在教室看见杰克。 He may play basketball on the playground.他可能在操场打篮球。表示征求同意(此时可以与 can 互换使用，但may 语气更委婉)

6、 May I watch TV now?我现在可以看电视吗？ Yes, you may / can.是的，你可以。 No, you may not / cant.不，你不可以。,Grammar,3. must表示必须，义务You must study hard.你必须努力学习。肯定形式表示推测 Who is knocking on the door?谁在敲门？ It must be Jane.一定是简。否定形式表示不许，禁止You mustnt tell a lie.不许你撒谎。,Grammar,【提示】1.表示否定的推测用 cant，而不用 mustnt。e.g. That cant be

7、my book because Bobs name isonit. 那不可能是我的书，因为鲍勃的名字在上面。2.用must提问的句子，其否定回答用neednt 或dont have to，而不能用 mustnt。e.g. Must I turn off the light now?我现在必须关灯吗？ No, you neednt /dont have to.不，不必。,in,Staying,good,active,Functions,Listen and number the following pictures. Then make sentences with the structures

8、 in the box.,1,2,3,4,5,6,should / shouldnt We must / mustnt,We should take showers often.,We should wash the hands before meals.,We should often open the window to keep the air fresh.,We mustnt drink sour milk.,We should tidy our rooms and often sweep the floor.,We mustnt spit in public.,2,2 Complet

9、e the passage with the correct words.,Some people think that smoking _ ( must/can) help him 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 an

10、d other diseases. The smoke from cigarettes harms _ (only/ not only) smokers but also other people. Its called “second-hand smoke” and it _ (can/cant) be more dangerous and has higher risks. Smokers shouldnt use smoking to help them relax. They _ (must/mustnt) give up smoking as soon as possible.,ca

11、n,unhealthy,are,bad,can,not only,can,must,1. We should often open the window to keep the air fresh. 我们应该经常开窗保持空气清新。 keep 后接形容词。意为“保持（某种状态）”，keep作系动词，也可以用be替换。如：keep quite!=be quite! 请保持安静！【扩展】 keep sb./sth. 后接形容词/动名词表示“让某人/ 某物处于某种状态”。 如：Keep the windows open, please. 请把窗户打开。 Dont keep him waiting. 不

12、要让他一直等着。,Language points,2. Smokers shouldnt use smoking to help them relax. 吸烟者不应该用吸烟来放松自己。 use sth to do sth. 意为“用.去做.” 如：We often use the dictionary to look up the new words. 我们经常使用词典去查阅新单词。,Language points,3.In fact, smoking is really unhealthy事实上，抽烟真的是不健康的。 In fact 事实上 In fact, I like playing c

13、omputer games. 事实上，我喜欢玩电脑游戏。 In fact, I want to eat an ice cream. 事实上，我想吃一个冰激凌。,Language points,4.They must give up smoking as soon as possible. 他们必须尽可能快的戒烟。give up sth/ doing sth 放弃做某事as soon as possible 尽可能快的 as much as possible 尽可能多的 as small as possible 尽可能小的As+形容词+as possible 可以与as.as one can 互

14、换使用。如：Please write down your answer as fast as possible. =Please write down your answer as fast as you can. 请尽可能快的写下你的答案。,Language points,Exercises,I. 根据句意及首字母提示完成句子。1. Xiaoming takes a s_ before he goes to bed every night.2. F_ speak louder than words.3. We should exercise a lot to keep our b_ heal

15、thy and strong.4. Smokers have higher r_ of getting lung cancer than those who dont smoke.5. I want to go there by plane if p_.,shower Facts body risks possible,Exercises,II. 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。Youd better give the book to me

16、 _ _ _ _.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 hes 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 shouldnt _ drinking _ _ them relax.,not only but also as soon as possible give up

17、teaching in fact use to help,Homework,1. What should we do to keep healthy? Please write a passage about it. The following questions may help you.How long do you usually sleep every night?How often do you exercise?How often do you eat fruit and vegetables?2.Preview Unit 2 Topic 3-Section A.,Bye-bye!,