九年级英语上册 Unit 2 Saving the earth Topic 2 All these problems are very serious Section C课件 （新版）仁爱版.ppt

《九年级英语上册 Unit 2 Saving the earth Topic 2 All these problems are very serious Section C课件 （新版）仁爱版.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit2SavingtheEarthTopic2AlltheseproblemsareveryseriousSectionCEnvironmentalproblemsonourplanetGlobalWarmingForestplummeted森林锐减AirpollutionLandDesertification土地荒漠化waterpollutionOceanpollution海洋污染Theenvironmentisbecomingworseandworse.Whatcanwedotoprotectourenvironment?Giv

2、easpeechWeshould…Weshouldn’t…LearnAims（学习目标）：Wordsandphrases：hole,form,rise…takeaway,ozonelayer…学会使用笔记来获取文章的主要信息以及将信息整理归类学习并利用阅读技能：预测、获取大意、猜测词义carbondioxide/ˈkɑ:bəndaɪˈɔksaɪd/oxygen氧气/'ɒksɪdʒən/CO2二氧化碳O2氧气Pre-readingSometrees’functionsTreescanbreathein__________________a

3、ndbreatheout_________________.carbondioxide(CO2)oxygen(O2)吸入呼出Pre-reading/ɔ:/形成/ˈblæŋkɪt/毯子/ɪˈskeɪp/逃离、渗出Ithasformedablanketandtheheat(热气）fromthesuncan’tescape.Thetemperatureisrising.rise/ˈraɪz/上升ButCarbondioxidehasincreased(增加)alot.aspecialkindofoxygencalled“ozone”(O3)(

4、被叫做）Pre-readingO3/ˈəʊzəʊn/ozone臭氧ozonelayer臭氧层/ˈəʊzəʊnˈleiə/hole/həʊl/洞averybigholeintheozonelayer（臭氧层）Thereistoomuchharmfulradiationfromthesun/ˌreɪdɪˈeɪʃn/放射物readagain/həʊl/洞/fɔ:m/形成/raɪz/上升holeformriseblanket毯子carbondioxide二氧化碳ozone臭氧radiation放射物fewertreesfactorypollut

5、iontrafficpollutiontheozoneholemorecarbondioxideCanyoumatch(匹配）them?Lookatthefollowingpicturesandpredictthemainideaofthepassagepredict12345预测Skimming(1b-1P40)1.ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.A.TrafficpollutionB.Factorypollution

6、C.FewertreesD.TheozoneholeE.MorecarbondioxideSkimmingChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebecomedeserts,somanykind

7、sofanimalsandplantsaredisappearing.C.FewerTreesParagraph2takeaway拿走、带走_________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems.Skimming:thesuitabletitle(正确标题）Paragraph3A.TrafficPollution_______________Factorieshavealsopollutedthelandand

8、thewater.Asaresult,manyriversandlakesarenowdead.Paragraph4B.FactoryPollutionSkimming:thesuitabletitle(正