Unit4Globalwarming复习课件- 高中英语人教新课标选修六.pptx

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1、 ReviewUnit 4 Global warmingReview123Vocabulary revisionSentence revisionTopic revisionDuring the 20th century the temperatureof the earth _ about one degree. The carbon dioxide in the atmosphere_ from around 315 parts to around 370 pearts per million.rosewent up a phenomenon- global warminghuman ac

2、tivitiesHow did it come about ?a random and natural phenomenonorThere is no doubt that it is human activity that has caused this globlal activity rather than a random but natural phenomenon.There is (some) doubt whether .I doubt whether.review it is/ was + 被强调部分+ that / who.it is / was not until. th

3、at.human activitiesthe burning of _ _ like coal, natural gas and oilmore _ gases, the most important of _ is carbon dioxide.deforestationless carbon dioxide will be _ _ of trees are being cut down by people.fossilfuelsgreenhousewhichabsorbedquantitiesThe _ of three scientists _ the rise are _ differ

4、ent. Janice Foster Charles Keeling George HambleyThese two scientists_ _ the view that global warming will lead to a _ while George Hambley is _ _ the opinion.atitudestowardscompletelysubscribe tocatastropheopposed toHow to state others opinions about a problem? He believes/ thinks/ that.He holds _

5、_ that.There are those_ , like sb. , are opposed to the view that.There are those_ , like sb. , subscribe to the point that.He thinks that., others who agree with him believe that . approve of the idea believe that. review the opinion/viewwhowhosnow melt droughtfloodcoastal cities will be submergedI

6、t is time for us to take measures to fight against global warming. It is time that _ _ take measures to fight against global warming. It is time that we _ measures to fight against global warming. review 是该做.的时候了。we shouldtookTogether, individuals can .make a differencea group work: Discuss with you

7、r classmates and figureout what we can do to fight against globalwarming in our daily life. some good ideas: 1. Turn off electrical appliance if not using. 2. Walk or ride a bike if you can. 3. Recycle cans, bottles, plastics and newspapers. If you can, buy things made from recycled materials. 4. Ge

8、t your parents to buy products that are economical with with energy. 5. Plant more trees. 6. Finally and most importantly, be an educator. Talk with your family and friends about global warming.Ouyang Guangone persona magazinetwo lettersEarth CareInvitationDear Ouyang Guang : In order to raise peopl

9、es awareness of protecting environment, our magazine intends to host a speech competition with the topic of “ how to fight against global warming ”. Wesincerely invite you to take part in the competition on behalf ofyour school. Yours, Earth Caresome good ideas: 1. Turn off electrical appliance if n

10、ot using. 2. Walk or ride a bike if you can. 3. Recycle cans, bottles, plastics and newspapers. If you can, buy things made from recycled materials. 4. Get your parents to buy products that are economical with with energy. 5. Plant more trees. 6. Finally and most importantly, be an educator. Talk wi

11、th your family and friends about global warming.Transitional expressions:In the first place; First and foremost; To begin with; Then; Also; Secondly; Besides; Moreover; Furthermore; Meanwhile In addition; Additionally; What is more; Finally and most importantly; Last but not least.To be clearer and better-organized To be more polite and convincing Useful sentence patterns:Why not do .?/Why dont you do.?It would be a good idea if .I think it would be more beneficial if you could. If I were you, I would.I would like to recommend/suggest that.HomeworkPolish your speech draft and hand it in.