英语教学课件 九年级.

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1 英语教学课件 九年级

2 Lesson 4 Don’t smoke, please!
Unit 1 Stay Healthy! Lesson 4 Don’t smoke, please!

3 Don’t smoke, please!

4 Words and Expressions smoke harmful disease lung harm breathe public
law v. 吸烟 n. 烟 adj. 有害的；导致损害的 n. 病；疾病 n. 肺 v. & n. 伤害；损害 v. 呼吸 adj. 公共的；大众的 n. 法律

5 Words and Expressions cigarette whenever risk somebody n. 香烟；卷烟
conj. 在任何……的时候 无论何时 n. 危险；风险 pron. 有人；某人

6 Smoking

7 Free talk 1. Have you ever smoked before?
2. Do people in your family smoke? 3. Do you know the harm of smoking?

8 objectives To learn how to stay healthy
To talk about the harm of smoking New words: smoke, harmful, public, law, whenever, risk, somebody…

9 Look and say smoke v. 吸烟 n. 烟 Smoke consists of gas and small bits of solid material that are sent into the air when something burns. Do you mind if I smoke? 我抽根烟你介意吗？

10 Look and say harmful adj. 有害的； 导致损害的 Something that is harmful has a bad effect on something else, especially on a person's health.  Polluted air and water are harmful to people’s health. 受到污染的空气和水，对人的健康是有害的。

11 lung n. 肺 Smoking can cause lung cancer.
Look and say lung n. 肺 Your lungs are the two organs inside your chest which fill with air when you breathe in. Smoking can cause lung cancer. 吸烟会引起肺癌。

12 Law n. 法律 Every citizen may claim the protection of the law.
Look and say Law n. 法律 The law is a system of rules that a society or government develops in order to deal with crime, business agreements, and social relationships. Every citizen may claim the protection of the law. 每个公民都可以要求受到法律的保护。

13 Look and say public adj. 公共的；大众的 1. Public means relating to all the people in a country or community. 2. Public buildings and services are provided for everyone to use. Public opinion (= the opinions of most people) has turned against him. 民意已不再支持他了。

14 Why is smoking harmful? Smoking is bad for your health. It can causes diseases of the heart and lungs. Every year, millions of people around thw world die as a result of smoking. That's terrible! If you smoke, You harm yourself, and you're also harming the people around you with your second-hand smoke. Smoking pollutes the environment, too. Everyone wants to live in a clean environment and breathe fresh air. In many countries, smoking in public places in now against the law.

15 What should we do? Never touch cigarettes. Whenever someone offers you a cigarette, you shoud alway say no. Don't take that risk. When somebody talks about smoking, change the topic. If your family members smoke, encourage them to stop smoking. It will be hard for them, But you should try explaining how important it is for their health. Eat more fruits anf vegetables, do more exercise, and form good habits.

16 Harmful effects of smoking
Read the passage and fill in the blanks. 1 Harmful effects of smoking 1. Smoking is bad for your ___________. It can cause ________ of the heart and lungs. 2. Smoking __________ the environment. 3. Second-hand smoke is _________ to people who don’t smoke. health diseases pollutes harmful

17 Advice to stay away from cigarettes
Read the passage and fill in the blanks. 1 Advice to stay away from cigarettes Never _________ cigarettes. When somebody talks about smoking, change the _________. _________ your family members to stop smoking. Eat more fruits and __________. Do more ________. Form good ________. touch topic Encourage vegetables exercise habits

18 1. I have a very bad toothache! You should go to see a dentist.
Read the following sentences and pay attention to the modal verb should. Then give advice for each problem using should. 2 1. I have a very bad toothache! You should go to see a dentist. 2. My new bicycle was stolen. You should call 110. 3. My bedroom is a mess. You should tidy it up.

19 4. My computer is broken. I can’t work without it.
Read the following sentences and pay attention to the modal verb should. Then give advice for each problem using should. 4. My computer is broken. I can’t work without it. You should ask someone to fix it. 5. I was late for school this morning, and my teacher was angry with me. You should get up early and never be late again.

20 second-hand smoke 二手烟，也称为环境烟草烟（ETS），既包括吸烟者吐出的主流烟雾，也包括从纸烟、雪茄或烟斗中直接冒出的侧流烟，也就是指吸烟的人所呼出的气体和香烟本身燃烧时的烟雾的俗称。二手烟中包含4000多种物质，其中包括40多种致癌物质，如被不吸烟的人吸进体内，亦可能和氡气的衰变产物混合一起，对人体健康造成更大的伤害。

21 second-hand smoke 专家提醒，吸“二手烟”的危害更不容忽视，不吸烟者和吸烟者一起生活或者工作，每天闻到烟味一刻钟，时间达到一年以上的危害等同吸烟。截止到2007年末，中国约有3.5亿吸烟者，每年死于吸烟相关疾病的人数近100万。中国参与的“全球青少年烟草调查”结果显示：青少年在家中和公共场所受二手烟危害的比例分别为43.9%和55.8%。中国吸烟人数为3.5亿，居世界各国之首。全国吸烟行为流行病学调查数据显示，虽然人们的吸烟率已经出现了下降趋势，但被动吸烟状况没有任何改善。

22 Present your posters to the class.
Let’s help people stay healthy! In a small group, make a poster that shows why smoking is bad. Present your posters to the class.

23 Project Against Smoking
Many people smoke. Smoking is a bad habit! It causes cancer and heart disease. In the World Health Organization(WHO) decided to celebrate World No Tobacco Day(WNTD) on May 31 of each year to draw global atention to the negative effects of tobacco. Let's help people stay healthy! In a small group, make a poster that show why smoking is bad. Present your posters to the class.Put them up on the bulletin board in your school.

24 Language points Eating too much junk food is bad for our health.
Smoking is bad for your health. 吸烟有害健康。 be bad for 有害于某人或某事 = be harmful to…/ do harm to… Eating too much junk food is bad for our health. 吃太多垃圾食品对身体有害。

25 Language points It can cause diseases of the heart and lungs.
它可以导致心脏病和肺病。 cause v. 造成；引起 n. 原因；起因 The bright light caused her to blink. 明亮的光线刺得她直眨眼睛。 I have no cause to question his honesty. 我没有理由怀疑他的诚实。

26 Millions of people around the world die as a result of smoking.
世界上数百万人因为吸烟而死亡。 as a result of 因此；由于；作为…..的结果 He was late as a result of the snow. 因为下雪，他迟到了。 Profits have declined as a result of the recent drop in sales. 由于最近销售量滑坡，利润下降了。

27 She's always rebelled against authority.
In many countries, smoking in public places is now against the law. 当今在很多国家，在公共场合吸烟是违法的行为。 be against 反对 be for 支持 She's always rebelled against authority. 她总是和权威对抗。 Are you for or against the plan? 你支持还是反对这项计划?

28 Don’t take that risk. 不要冒险。 take a risk 意为“冒险” take the risk of doing sth. “冒险做……” I didn’t want to take the risk of leaving John alone. 我不想冒险把约翰单独留下。 Don't take any risks – just ring the police. 不要冒险行事——给警察打电话吧。

29 Once you get into the habit of smoking, it’s not easy to give it up.
一旦你养成吸烟的习惯，就很难戒掉。 get/fall into the habit of… 养成……习惯 George has got into the habit of going to bed late. 乔治养成了晚睡的习惯。

30 Modal Verbs should & need

31 Have a look 1. …but you should try explaining how important it is…
2. Crime should be punished. 3. You should avoid such mistakes.  4. They should be ready by 12:00.    1. What should we do? 2. It’s strange that he should come so late.  3. I’m sorry that this should have happened. 4. I’m surprised that he should feel lonely. 

32 should 1.表示劝告、建议 1. We should go to the hospital right now.
2. As a student, you should never smoke. 3. You shouldn’t be so careless. 2.表示征求同意或征询意见，用于主语为第一人称的疑问句。 1. Should I open the window? 2. When should we have the meeting?

33 should 3.表示惊讶，在某些句式中可以表示说话者的惊讶。
It is simply a miracle that rice should grow in such a place. 稻子竟能在这样的地方生长, 这实在是个奇迹。 How should I know it ？ 我怎么会知道这件事？

34 Have a look Danny, you need not get up so early.
2. We need not worry about him. 1. — Need we eat foods from each food group? — Yes, you must. 2. — Need the guests leave the place right away? — No, they needn’t.

35 need 必要，需要（作情态动词时只用于否定句和疑问句） Danny, you need not get up so early.
1.没有人称和数的变化 2.不能单独充当谓语。 3.变为否定句时只需在情态动词之后加not。 4.变为疑问句时只需将情态动词提到主语的前面。 Danny, you need not get up so early. 2. Need I type this letter again?

36 need need用在疑问句中，肯定回答一般用must，否定回答一般用need not。
1. — Need we eat foods from each food group? — Yes, you must. 2. — Need the guests leave the place right away? — No, they needn’t.

37 1. What do you mean, there are only ten tickets? There___ be twelve. 
A. should     B. would              C. will    D. shall  2. —I don’t care what people think.  —Well, you _______  A. could              B. would              C. should             D. might

38 本课时重点回顾 smoking is bad for your health as a result of should + do
get into the habit of

39 Spelling Bee Now 2 mins to test your spelling. English-Chinese
disease lung breathe cigarette Chinese-English 有害的 公共的 法律 无论何时 危险 有人 When finished, exchange your papers to see who does the best.

40 Fill in the blanks Smoking
1. _________ (smoke) is bad for your health. 2. In many countries, smoking in public places is now _______ the law. 3. don’t _______ that risk. 4. Eat more fruits and vegetables, do more exercise, and ________ good habits. against take form

41 Translation 1.世界上数百万人因为吸烟而死亡。
Millions of people around the world die as a result of smoking. 2.一旦你养成吸烟的习惯，就很难戒掉。 Once you get into the habit of smoking, it’s not easy to give it up.

42 Homework Please Recite the new words and expressions.