1、然后询问他们提什么建议,引出吸烟有害的原因。让学生在学习课文的过程中尽可能多找出描述性的句子并记忆,培养学生的学习积极性。思路二:首先以展示图片并询问问题来导入新课,让学生分组讨论五个问题,以真实的语言情景展开语言实践活动,提高学生的英语交际能力。教师在课前设计教学PPT,准备录音机和磁带,多媒体等。Step.Lead inLeading in 【情景1】T:Good morning/afternoon,everyone.Did you eat a healthy breakfast/lunch today?What did you have?Why was it healthy?Studen
2、ts will answer.The answers are open.Show the“No Smoking”sign on PPT.Let the students discuss the“No Smoking”sign.Ask the students what this sign means.Where have they seen this sign before?Do people in your family smoke?S1:Yes.My father smokes.S2:Yes.My uncle smokes.S3:Yes.My grandpa smokes.What do
3、you advise him/her to do?Ss:I advise him/her to give up smoking.设计意图明确本课的教学内容,引导学生进入本课的话题讨论。Leading in 【情景2】The teacher can begin the class by showing the pictures about smoking and drinking on PPT and then ask questions:1.What are the people in the pictures doing?2.Do your parents smoke?3.Do you th
4、ink smoking is a good habit?Why or why not?4.Do you think drinking wine is a good habit?5.What should they do to stay healthy?Let students have a discussion in groups and give the answers in three minutes.【Keys】1.They are smoking and drinking wine.2.Yes,they do./No,they dont.3.No,it is a bad habit.B
5、ecause smoking is bad for our health and the people around us.4.We shouldnt drink too much wine.We should drink properly.5.They should do more exercise,give up smoking and not drink too much wine.设计意图通过PPT及图片内容,了解吸烟和喝酒都是坏习惯,对自己及周围的人的健康都会造成伤害,从而明确本课的学习内容。Step.Presentation1.Show the picture“No Smoking
6、”.Smoking is“吸烟”.Smoking is bad for you because the smoke and chemicals in cigarettes are harmful to your body.Cigarettes damage your lungs and heart,and increase the risk for cancer and many other diseases that can kill you.Write the words “harmful” and “risk” on the board,and then show the student
7、s some images to reinforce the dangers of smoking.Let students look at two pictures:smokers lungs and non-smokers lungs.Our health is important and thats why we should stay away from smoking.Present the new words of this lesson and teach them.Give the students five minutes to remember the words.设计意图
8、呈现本课中出现的词汇,领着学生们朗读并记忆,让学生们了解重点词汇,起到巩固基础的作用。2.Read the text and find out key phrases and sentences.Key phrases:millions ofas a result ofsecond-hand smoketake a riskget into the habit ofstay away fromKey sentences:Every year,millions of people around the world die as a result of smoking.Dont take that
9、 risk.Once you get into the habit of smoking,its not easy to give it up.Stay away from cigarettes and you can live a long,healthy and happy life.教材解读1.As a student,you should never smoke. as为介词,意为“当作,作为”。2.Smoking is bad for your health. 本句为动名词作主语的句子。当动名词作主语时,谓语动词用单数形式。动名词作主语的句子可改为用动词不定式作主语,此时常用it作形
10、式主语,而将真正的主语动词不定式放在句末,即“It is+形容词或名词+to do sth.”。be bad for意为“对有害”,其反义词组为be good for,意为“对有益”。3.It can cause diseases of the heart and lungs. disease为名词,意为“疾病”,是用以指各种病的术语,特指严重的,长期的疾病,如肝病、心脏病等。【拓展】（1）sickness多用来指恶心、呕吐之类的疾病,这种疾病大多由外因引起,且病痛时间较短。（2）illness主要指因人体内部的虚弱或失调引起的疾病,且病痛时间较长。4.Every year,millions
11、of people around the world die as a result of smoking. millions of表示模糊概念,意为“数百万的”,此时million用复数形式,且与of连用。We plant millions of trees every year.每年我们种植数百万棵树。【拓展】（1）当million前有基数词,表达确数时,无论基数词是什么,million永远都用单数形式。three million三百万（2）与million用法相同的单词还有hundred,thousand和billion。die在这里为不及物动词,意为“死,死亡”,其过去式和过去分词都为
12、died,现在分词为dying,形容词为dead/dying,名词为death。The old man died of cancer yesterday.昨天这位老人死于癌症。The doctors have saved the dying man.医生们已经救活了那个垂死的人。as a result of由于,因为,相当于because of,后面接名词或代词。He was late as a result of the heavy snow.由于大雪,他迟到了。5.If you smoke,you harm yourself,and youre also harming the peopl
13、e around you with your second-hand smoke. harm在本句中为及物动词,意为“伤害,损害”。harm oneself意为“伤害某人自己”,与hurt oneself同义。6.Whenever someone offers you a cigarette,you should always say no. whenever为连词,意为“无论何时,在任何的时候”,相当于no matter when,引导让步状语从句。【拓展】whatever=no matter what无论什么wherever=no matter where无论哪里however=no ma
14、tter how不管怎样offer为及物动词,意为“（主动）提供,给予”,其后可接双宾语,即offer sb. sth.,相当于offer sth. to sb.,意为“向某人提供某物”。【固定搭配】offer to do sth.主动提出做某事7.Dont take that risk. risk为名词,意为“危险,风险”。take a risk冒险。take the risk of doing sth.意为“冒险做某事”。A good pilot never takes a risk.优秀的飞行员从来不冒险。8.Once you get into the habit of smoking,
15、its not easy to give it up. get into the habit of为固定短语,意为“习惯于,养成的习惯”。I get into the habit of listening to music every night.我养成了每天晚上听音乐的习惯。give up为固定短语,意为“放弃”,若宾语为人称代词,则须放在give与up之间。give up doing sth.意为“放弃做某事”,give up不能接动词不定式作宾语。He gave up smoking at last.最终他戒掉了烟。9.Stay away from cigarettes and you
16、can live a long,healthy and happy life. stay away from为固定短语,意为“离开,远离”,与keep away from同义。Why did you stay away from school?你为什么没上学?live alife表示“过的生活”。live a happy life过幸福的生活live a hard life过艰苦的生活设计意图对文中的重难点句型进行讲解,帮助学生明确语言点,为课文的理解清除障碍。Step.Reading1.Read the text.Monitor the students pronunciation and
17、comprehension.2.Show Lets Do It!No. 1.Fill in the chart with the information from the lesson.Harmful effects of smoking Advice to stay away from cigarettesSmoking is bad for your.It can causeof the heart and lungs. Smokingthe environment. Second-hand smoke isto people who dont smoke. Nevercigarettes
18、. When somebody talks about smoking,change the. your family members to stop smoking. Eat more fruits and.Do more.Form good. 【Keys】health,diseases,pollutes,harmful;touch,topic,Encourage,vegetables,exercise,habits设计意图通过学生们反复朗读课文,加强学生们的记忆,同时也锻炼学生们的口语表达能力。Step.TaskGroup work:Project1.Instruct the studen
19、ts to work in groups to discuss the negative effects of smoking and take down notes during the discussion.2.Then ask them to come up with a theme for next years World No Tobacco Day and create a poster to go with it.The theme and the poster should focus on why smoking is bad and how we can help to g
20、et rid of it.You may want to provide the students with some research materials to help inspire them.3.Ask the students to present their posters to the class.Put them up on the bulletin board in your school!设计意图培养学生们的写作能力及创造力。Step.Practice.Show Lets Do It!No. 2.Read the following sentences and pay at
21、tention to the modal verb “should”.Then give advice for each problem using “should”.We should go to the hospital right now.As a student,you should never smoke.1.I have a very bad toothache!You should go to see a dentist. 2.My new bicycle was stolen._3.My bedroom is a mess.4.My computer is broken.I c
22、ant work without it.5.I was late for school this morning,and my teacher was angry with me. 设计意图锻炼学生们的思考问题和总结问题的能力,培养自主学习的意识和习惯。.根据汉语意思完成句子1.由于他的努力,他很容易地通过了考试。 his hard work,he passed the exam easily. 2.吸烟是一个坏习惯,它能引发癌症和心脏病。Smoking is a bad habit,and it can cause cancer and . 3.我们不应当违反法律。We shouldnt b
23、e . 4.过马路时我们不能冒险。We mustnt when we cross the street. 5.如果你习惯了吸烟,就不容易戒掉。If you smoking,its not easy to give it up. .根据句意及首字母提示补全单词1.Smoking is h to your health. 2.Smoking can cause d of the heart and lungs. 3.When s talks about smoking,change the topic. 4.Smoking can not only harm yourself,but also h
24、arm the people around you with your s smoke. 5.We often go to the country to b fresh air on weekends. 【Keys】.2.You should call 110./You should ask the policeman for help.3.You should tidy it up.4.You should ask someone to fix it.5.You should get up early and never be late again.1.As a result of2.hea
25、rt disease3.against the law4.take a risk5.get into the habit of.1.harmful2.diseases3.somebody4.second-hand5.breathe设计意图锻炼学生的思考能力,同时培养学生的语感。Step.SummaryIn this class,weve learnt something about smoking and some key words and sentences.设计意图给学生以总结,让学生明确这节课的学习内容。Step.Homework1.Finish off the remaining exercises in the activity book.2.Read the next reading in the students book.3.Write a poster in your exercise book.设计意图让学生通过习题巩固本节内容,并提前做好预习。Lesson 4Dont Smoke,Please!Main phrases:stay away fromMain sentences:
