初中英语Lesson 4 Don't Smoke, Please!优质导学案

Lesson 4: Don’t Smoke, please!  导学案

【学习目标】

1. 重点单词：

smoke,harmful,disease,lung,harm,breathe,public,law,cigarette,whenever,somebody

2. 重点词组：be bad for,get into the habit of...,stay away from...

3. 重点句式：

(1)Every year,millions of people around the world die as a result of smoking.

(2)Don’t take that risk.

(3)Once you get into the habit of smoking,it’s not easy to give it up.

(4)Stay away from cigarettes and you can live a long,healthy and happy life.

【重点难点】

重点:掌握并运用重点短语和句型。

难点:学会谈论一些健康问题,远离香烟。

【导学过程】

一、课前预习

1. ________ v. 吸烟　n. 烟 2. ________adj. 有害的；导致损害的

3. ________adj. 公共的；大众的 4. ________n. 法律；法规

5. ________ conj. 在任何……的时候 6. ________n. 危险；风险

7. ________ pron. 有人；某人 8. disease n. ________

9. lung n. ________ 10. harm v. & n. ________

11. breathe v. ________ 12. cigarette n. ________

1. harm→________(adj. ) 2. breathe→________(n. )　　　　　　　

3. disease→________(同义词)

Step 1. 自主探究，合作交流 

1. Listen to the tape and then answer T or F

1. As a student, you should never smoke. (    )

2. Every year, thousands of people around the     world die as a result of smoking. (    )

3. Once you get into the habit of smoking, it’s easy to give it up. (    ) 

Step 2. 交流展示

1. 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。

【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。

2. Every year,millions of people around the world die as a result of smoking. 

　1）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。

　eg. 每年我们种植数百万棵树。

   We plant                trees every year.

【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。

2）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died,现在分词为dying, 形容词为dead/dying,名词为death。

eg. ①昨天这位老人死于癌症。

     The old man                cancer yesterday.

　② 医生们已经救活了那个垂死的人。

     The doctors have saved the         man.

3.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 matter how不管怎样

4. Don’t 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”。

　 eg. 优秀的飞行员从来不冒险。

      A good pilot never                        .

5. plenty of“大量；许多”=many/much=a lot of /lots of   plenty  of 大量的,既可修饰可数名词 又可修饰不可数名词,等同于a lot of或lots of.修饰可数名词复数时相当于many,修饰不可数名词时相当于much。

 Eg: There are plenty of eggs.（同义句） There are _____ _____ eggs.

三、知识点拨：

1.be bad for sth./sb.意为“对某物/人有害处”;

同义词组:be harmful to sth./sb.或 do harm to sth./sb.。

Smoking is harmful to your health.=Smoking does harm to your health.

反义词组:be good for意为“对……有好处”。

Eating more vegetables is good for your health.

2.as a result of意为“由于;作为……的结果”,等于because of;

as a result 意为“结果”,后面是事情的结果,自己单独使用,用逗号与其他部分隔开。

3.should 的用法:

(1)用于第一人称疑问句,表征询意见。如:Should I open the window?

(2)should表义务,可用于各种句式,通常指将来。如:

You should do what your parents tell you.

(3)should表推测,暗含很大的可能。如:

It's 4:30.They should be in New York by now.

(4)should可用在某些从句中,表虚拟语气。如:

I suggest that you should stay here as if nothing had happened.

(5)should表感情色彩,常用在以why,how开头的疑问句中。如:

Why shouldn't you invite him?

4.get/fall into the habit of...意为“养成……的习惯”,强调动作;

George has got into the habit of going to bed late.

be in the habit of...意为“有……的习惯”,强调状态。

They were in the habit of going for long walks.

四、【知识巩固】

Ⅰ.根据单词及语境完成句子

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. 

Ⅱ.根据课文内容完成短文

Smoking is 　　　 for your health.Every year,millions of people 　　　 the world die 　　　 smoking.If you smoke,you harm yourself,and you're also harming the people around you.Smoking 　　　 the environment,too.Smoking in public places is now 　　　 the law.Whenever someone 　　　 you a cigarette,you 　　　 always say no.Don’t 　　　 that risk.When somebody 　　　 smoking,change a topic.If your family members smoke,encourage them 　　　 smoking.Eat more fruits and vegetables. 

答案：

一、课前预习

核心单词　1.smoke　2.harmful　3.public　4.law　

5．whenever　6.risk　7.somebody　8. 病；疾病　9. 肺　

10．伤害；损害　11.呼吸　12.香烟；卷烟

单词变形　1.harmful　2.breath　3.illness

二、Step 1.自主探究，合作交流：

T      F     F

Step 2. 交流展示：

拓展交流

2.1) millions of  2) ① died of  ② dying  4. takes a risk  5. lots of

四、【知识巩固】

Ⅰ.1.Smoking　2.against　3.take　4.form

Ⅱ.bad;around;as a result of;pollutes;against;offers;should;take;talks about;to stop