选修六 unit 4 global warming-Using language 公开课课件.ppt

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1、Unit 4Global warming,Using language,Goals,1.知识目标To get the general idea of the passage and understand what can we do about global warming.,2. 能力目标To improve reading ability and writing skills.,3. 情感目标To know what the effects global warming has brought about and what we should do to protect our earth

2、.,the causes,the effects,Global warming,causes,A rising population,The use of energy,Greenhouse gases,Burning of fossil fuels,Agricultural industry,Destruction of forests,Whats the result of global warming,rising of sea level,severe storm,What can we do about global warming?,Reading &Writing,Skim th

3、e letters and find who the writers are and what their purpose of writing the letters is.,Skimming,The first letter is written by a student who is on behalf of his school, asking for suggestions for his project global warming.The second letter is written by an editor of Earth Care magazine，who offers

4、 the student some suggestions on what to do about global warming.,代表,Task: List Earth Cares suggestions.,Reading,1.If you are not using electrical appliances, turn them off.,2.Put on more clothes instead of turning up the heat.,3.Walk or ride a bike if you can.,4.Recycle and buy things made from rec

5、ycled materials.,5.Get your parents or friends to buy products that are made to save energy.,6.Plant more trees.,7.Talk with your family and friends about global warming and tell them what youve learned.,Why should we follow the suggestions?,To save energy!,To save energy is another way of saving th

6、e earth.,Have you found that in school.,Waste of energy and sources,Have you found that in school.,Wasted paper and rubbish thrown everywhere,Whats your feeling？,Lets live in low-carbon way！,鉴于你在校园中发现的一些不环保的现象，请你写一篇演讲稿（speech），倡议同学们成为“低碳一族”（be low-carbon people）,节约资源，爱护地球。要点如下：1.步行或骑自行车上学，锻炼身体，减少大气污

7、染；2.不浪费水和食物，充分使用纸张；3.不乱扔垃圾，做好垃圾分类（waste sorting）4.离开宿舍或教室时，记得关上灯和电扇，节约用电。注意：词数100-120字，可适当增加细节，行文要规范。,Writing,Have a discussion on the tips in groups.,1. Finish your composition after class；2.Preview the language points in the Text.,Homework,1. I am doing a project on behalf of my school about globa

8、l warming. on behalf of 代表一方，作为的代言人e.g. Im writing on behalf of my mother to express her thanks for your gift. 我代表我母亲写信, 对你的礼物表示感谢。,Language points,He spoke on behalf of all the members of the staff. 他代表全体教职员工讲了话。,2. We don not have to put up with pollution. put up with 忍受，容忍e.g. He couldnt put up w

9、ith the noise, so he kept the windows shut all day long. 他忍受不了嘈杂声，所以整天窗户紧 闭。,I cant put up with her another day she never stops complaining.她整天抱怨，我一天也不能忍受了。,3. It is OK to leave an electrical appliance on so long as you are using it if not, turn it off! so long as 只要，也可以用作as long ase.g. You will do

10、all right so long as you follow my advice. 只要你听我的建议, 你一定会做好的。 I am happy so long as you are happy. 只要你高兴，我就高兴。,4. Recycle cans, bottles, plastic bags and newspapers if circumstances allow you do. circumstance n. 环境，情况e.g. I know I can trust her in any circumstance. 我知道我在任何情况下都能信任她。 You should soon a

11、ccommodate yourself to the new circumstance. 你应尽快适应新环境。,In/under the circumstances In/under no circumstances,在这种情况下，既然如此绝不，无论如何不,Practise,I. 根据句意及所给单词的首字母或汉语提示，写出所缺单词的正确形式。 The cool water r_ John after his long sleep.2. This is a formal party so youd better not wear c_ clothes.3. I was asked to give

12、 a short p_ on the aims of the plan.,refreshed,casual,presentation,4. The companys _ (承诺) to providing quality at a reasonable price has been vital to its success.5. It is very difficult to see doctors, so many people _ (提倡) building more hospitals.6. Its the best result that could be expected under

13、 the _ (情况).,circumstances,commitment,advocate,II. 根据汉语提示，补全下列句子。 Im writing _ (代表我母亲) to express her thanks for your gift.2. I _ (再也不能忍受Ivy了) she never stops complaining.3. I dont care about the price, _ _ (只要这块儿表质量好).,on behalf of my mother,cant put up with Ivy any more,so long as the watch is of

14、good quality,4. If you know a foreign language you can tell your foreign friends about _ _ (你的家 庭、学习等情况). 5. To the doctors disappointment, the medicine _ (对这个病人几乎不起作用).,your family, your study and so on,has little effect on the patient,6. In sport _ (重要的是) is not the winning but the playing. 7. The doctor told Paul to _ _ (少抽烟).,what really counts,cut down on smoking,