Unit 2 Keeping healthy
Unit 2 Topic 2 I must ask him to give up smoking.
SectionD同步练习
一、单选。
1.--_______ I ask you a question? --Sure
A. May B. Do C. Should D. Am
2.— Watching TV too much _______ bad for your eyes.
— I’ll go to bed right away.
A. is B. are C. was D. be
3. — Excuse me, can I smoke here?
— No, ____ .
A. you must B. you’d not better
C. you can D. you’d better not
4. — Must I finish my homework now?
— No, you_____ . You can go home now.
A. needn’t B. mustn’t C. shouldn’t D. can’t
5.— I don’t care what people think.
— Well, you_____ . You’re not alone in this world.
can B. may C. should D. will
二、完型填空。
? ?What can you do to keep healthy? Perhaps for children, health eating is one of the most important things. Here are some about 1 to eat healthily. Having breakfast ?? ?A good breakfast is very important to children, It's necessary to have it in the morning.But some children often go to school 2 breakfast, just because they want to sleep a little longer. 3 ?that a good breakfast will help you study better. Having milk ?? ?"My dream is that all the Chinese children can get half a kilogram of 4 a day." An old man says. Milk is also very 5 ?to children's healthy. It makes children grow stronger. It's better for you to 6 a glass of warm milk before going to bed. That will help you 7 ?a good sleep. Having healthy food ?? ?Having healthy food is the most important. That means eating lots of different 8 of food, especially fruits and vegetables. Don't eat too much chocolate 9 ?ice cream. Some of you eating fast food, but 10 it is not good for your health. Thy to eat healthy food as much as possible. ??? Have healthy eating habits, and you will have a strong body.
1. A. What
B. Why
C. Where
D. How
2. A. for
B. after
C. without
D. from
3. A. Remember
B. Introduce
C. Organize
D. Develop
4. A. water
B. milk
C. juice
D. pop
5. A. natural
B. special
C. important
D. delicious
6. A. drink
B. taste
C. eat
D. reach
7. A. has
B. have
C. having
D. had
8. A. kinds
B. shapes
C. bowls
D. baskets
9. A. and
B. but
C. so
D. or
10. A. at last
B. as usual
C. in fact
D. at that time
情景对话。
A：Which is more important, wealth or health?
B：In my opinion (观点), _____ .
A：I agree with you. But how can we keep healthy?
B：I think ___ especially (尤其) green vegetables and fruit.
A：Can we eat too much meat?
B：No, I think ____ .
A：What else should we do?
B：We should ______ . But remember not to do sports soon after meals.
A：I see. _____?
B：It is good.
A. that is bad for our health
B. Is going to bed early good or bad for our health
C. health is more important than wealth
D. we should eat healthy food
E. do some sports every day
四、阅读。
We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:
??? ① Keep your computer in a cool ,dry room. Too much or too little heat is bad for computers. Damp (潮湿) is also bad for them.
??? ② Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.
??? ③ Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.
（1）Computers can ____ people to do a lot of work.
A.?help B.?make C.?use
（2）Few people know how to_____ their computers.
A.?look for B.?take care of C.?look at
（3）A computer works well at a temperature of _____.
A.?0℃ B.?35℃ C.?20℃
（4）Is smoking good or bad for many parts of a computer?
A.?good B.?bad? C.?I don’t know.
（5）A dirty screen or a very bright screen is ______ for your eyes.
A.?helpful B.?good C.?bad
Unit 2 Keeping healthy
Unit 2 Topic 2 I must ask him to give up smoking.
SectionD同步练习 答案
AADAC
二、（1）D；（2）C；（3）A；（4）B；（5）C；（6）A；（7）B；（8）A；（9）D；（10）C；
课件34张PPT。Unit 2 Keeping healthy
Topic 2 I must ask him to give up smoking. 仁爱科普版 八年级上SectionDWarming-upEnjoy a video.RevisionWhy do people try smoking?
Is smking healthy or unhealthy?
It's really unhealthy.Because they think smoking can help him relax.healthy---unhealthyhappy---unhappyWhy is smoking unhealthy?Because there are over 4000 chemicals in cigarettes and these chemicals can cause cancer and other diseases.The smoke from cigarettes harms the smokers and also people around them. chemical 化学药品cigarette 香烟disease疾病harm 对...有害
harmful 有害的
be harmful to...Complete the passage with the correct words.2 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.canunhealthyarebadcanThe 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.mustnot onlycan can/could
may/might
must
shall/should
will/would
need
have to能够
可能
必须
应该
意愿
需要
不得不+ 动词原形情态动词表示说话人对某一动作或状态的态度，可表示“可能”、“可以”、“需要”、“必须”或“应当”等之意。 语法专讲本课重点
情态动词语法专讲can（1）表示能力时，意为“能够，会”，
如：—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。
如：— 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”。如：Mr Smith can't be at home.史密斯先生不可能在家。could&can1.could是can的过去式，意为“能；会”，表示过去的能力。
He could play the piano when he was 5.
当他5岁时，他就会弹钢琴了。
2.在表示请求许可时，can，could没有时态区别，只是could在语气上更加委婉客气。
—Could I use your dictionary? 我可以用你的字典吗？—Yes, you can. 可以。注意：中考链接(2017河北) I have travelled a lot. I________ speak four languages.
A. can B. may
C. must D. need
【解析】考查情态动词。此处can表示具有某种能力，意为“能；会”。其他选项没有此用法。中考链接(2017温州) We've ordered too much food. I ________eat any more.
—Never mind. Let's take it home.
A. can't B. mustn't
C. needn't D. shouldn't
【解析】 ——我们点了太多食物。我不能再吃了。——没关系。我们带回家。此处can't意为“不能”。语法专讲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)。
(2) 表示推测，意为“可能，也许”，常用于肯定句中。
如：The watch may be Mary's.这块手表可能是玛丽的。2.may的过去式为might，表示推测时两者无时态区别，不过might的可能性低于may。
He might be sick.他可能是生病了。1.may还可表示推测，谈论可能性，意为“可能；或许”，一般用于肯定句中。
It may rain tomorrow. 明天可能会下雨。注意：may&might3.表示希望、祈求、祝愿时，may常译为“祝愿”，通常结构为“may+主+v.”。
May you have a good time！祝你玩得开心！ 中考链接 ( 2017·西宁 )—What will the weather be like tomorrow?
—It________be rainy,cloudy or sunny.I’m not sure.?
A.must B.should
C.can’t D.might
【解析】考查情态动词。根据“I’m not sure.”可知,空处表示“有可能”。可知应用情态动词might。【答案】 D语法专讲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，不能用mustn’t。
如：—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。如：The book must be Lily's because there's her name on the cover.这本书一定是莉莉的，因为封面上有她的名字。中考链接( 2017·北京 )—________I hand in the report today??
—No,you needn’t.
A.Can B.Must C.Shall D.Could
【解析】考查情态动词。句意:——今天我必须交报告吗?——不,你没有必要。根据答语“No,you needn’t.”可以判断,前面是must引导的一般疑问句。故选B。GrammarModal Verbs (Ⅱ): must/mustn’t; may; cancanMaymustn’tmustcanFunctions inStayinggoodactivePre-listening Look and say the activities. take a showerwash the hands open the windowthrow the box of sour milktidy the roomspit in publicListen and number the following pictures.1123456Good morning,boys and girls.Today I am going to tell you how we can live the healthy life.
First, we should have healthy living habits. Take showers often to keep our bodies clean.Tidy our rooms every day to make our room clean.We should open the window often to keep the air fresh.Don't spit in public because it causes diseases.Then we should have a healthy eating habits.Remember to wash the hands before meals.Don't drink sour milk .Eat more vegetables and fruit.But don't eat so much sugar.Thank you for your attention!Wish you happy and healthy.Listen and repeat.Listening taskMake sentences with the structures in the box.We should take showers often.We should wash the hands before meals. should / shouldn’t…
We
must / mustn’t…We should often open the window to keep the air fresh.We mustn’t drink sour milk.We should tidy our rooms and often sweep the floor.We mustn’t spit in public. be good for our healthbe bad for our healthgood habitsbad habitsDrillsGroupworkWork in groups, write down the good habits and bad habits around you.Good habits4. Washing hands before meals.1. Taking a walk after meals.2. Going to bed early and getting up early.3. Drinking enough water every day.5. ......Bad habits1. Eating too much meat.2. Going to bed late and getting up late.4. Going to school without breakfast.3. Throwing litter around.5. ......habits
问卷
调查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.Scores:
A = 1 point B = 2 points C = 3 points
Total score: _________Are you healthy?1. We must have enough food to keep healthy.2. We must have the right kinds of food.3. We should have different food.4. We shouldn’t eat too little or too much.5. We should sleep 8 hours every night.6. We should exercise every day.SummaryWhat should we do to keep healthy?上21世纪教育网 下精品教学资源谢谢21世纪教育网（www.21cnjy.com)中小学教育资源网站有大把优质资料？一线名师？一线教研员？
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