1、Unit 1 Stay HealthyLesson 4: Dont Smoke, Please!I. Learning aims:Master the new words: smoke, harmful, disease, lung, breathe, harm, cigarette, whenever, risk, somebody II. Learning important and difficult points: 1) In many countries, smoking in public places is now against the law.2) Never touch c
2、igarettes.3) If your family members smoke, encourage them to stop smoking.4) Once you get into the habit of smoking, its not easy to give it up.Language Points:1. risk【用法】作可数名词，意为“危险、冒险”。【举例】Despite such accidents, even more people are taking the risk. 尽管事故频发，但很多人仍然在冒险。【用法】作及物动词，意为“冒的危险”，后面的动词要用动名词形
3、式。【举例】They risked losing lives to save that children. 他们冒着生命危险挽救那个孩子。2. In many countries, smoking in public places is now against the law. 在很多国家，在公共场所吸烟现在是违法的。【用法】这句话中的smoking in public places 是动名词短语作主语， 此时谓语动词要用单数形式。【举例】Playing with children is very interesting. 和孩子们在一起玩很有趣。【用法】介词短语 against the la
4、w意为“违背法律”，在句中作表语或定语。【举例】We cant do anything against the law. 我们不能做任何违法的事情。3. If your family members smoke, encourage them to stop smoking. 如果你的家人吸烟，鼓励他们戒烟。【用法】句式encourage somebody to do something 意为“鼓励某人做某事”，这里用不定式作宾语补足语。【举例】The teachers always encourage us to study hard. 老师总是鼓励我们努力学习。【用法】句式 stop do
5、ing something 意为“停止做某事”，类似句式stop to do something 则表示“停下来去做某事”。【举例】It is too late. Please stop playing games. 时间很晚了。请不要玩游戏了。4. Once you get into the habit of smoking, its not easy to give it up. 一旦你养成吸烟的习惯，就不容易戒掉了。【用法】句式get into the habit of doing意为“养成或形成习惯”，介词of后加动名词作宾语。【举例】His uncle has got into the habit of drinking wine. 他叔叔养成了喝酒的习惯2
