Sandstorms-in-Asia课件.ppt

Module4SandstormsinAsia,宝清二高英语组刘南,Butonedaysomethinghappened.,sandstorm,Whatarethecausesofsandstorms?,Thinking,Thecausesofsandstorms,1.desertification(沙漠化);2.climatechanges;3.cuttingdowntreesanddiggingupgrass;4.improperuseofland;5.hightemperatureandlittlerain;6.thedestructionofenvironment;7.thegrowingpopulationoftheworld,SandstormsinAsia,Fast-reading,Readthepassagequicklyandmatchthemainideaswitheachparagraph.,Matchthemainideawitheachparagraph.,Para.1Para.2Para.3Para.4Para.5Para.6,A.thedescriptionofsandstormsB.theeffectsofsandstormstoBeijing.C.themeasuresthegovernmenttakestopreventsandstormsD.Sandstormshavebeenamajordisaster.E.theadvicetheweatherexpertsgivetopeopleF.thecausesofthesandstormsinChina.,description,effects,measures,amajor,disaster,advice,causes,Careful-reading,Readthepassageagaincarefullyandanswersomequestions.,Part1(Para.1),Whatsthefunction(功能)ofthefirstparagraph?,A.Toleadinthetopicofthispassage.B.Totelluswhatsandstormsare.C.Totelluswherethesandstormsoccur.,1.Whataresandstorms?2.Wheredosandstormsoccuroften?3.Whoexperiencedasandstormwhenhewasyoungandwhatshisfeeling?4.WhyhavesandstormsincreasedinChina?5.WhensandstormshappeninBeijing,whatstheweatherlike?,Part2(Para.2-4),What,Where,Who,Why,When,strong,dry,winds,carrysand,1.Whataresandstorms?,sandstorms,are,2.Wheredothesandstormsoftenoccur?,CentralAsia,NorthAmerica,CentralAfrica,Australia,4.WhyhavesandstormsincreasedinChina?,Sandstormsappeartohaveincreasedinrecentyearsasaresultofdesertification.,3.Whoexperiencedasandstormwhenhewasyoungandwhatwashisfeeling?,desertification,RenJianboexperiencedasandstormwhenhewasyoung.Andhethoughtthat.,When_happen,citizenswakeuptoanorange_andstrong_thatcoverthecityinathick,brown-yellowed_.,dust,sky,winds,sandstorms,5.WhensandstormshappeninBeijing,whatistheweatherlike?,Traffic?,Part3(para.5-6),1.Whatstheweatherexpertsadvice?,Theyadvisepeoplenottogoout.,2.Whatisthegovernmentdoingtocontrolsandstorms?,Thegovernmentisplantingtrees.,Post-reading,Fillintheblanksaccordingtothepassage,Sandstormsarestrong,dry_thatcarrysand.Theyappearto_(increase)inrecentyearsasa_ofdesertification.Whentheyhappen,thetrafficmovesvery_(slow)becausethethickdustmakes_difficulttosee.Whenasandstormarrivesinthecity,weatherexperts_peoplenottogoout._youwanttogoout,youdbetterweara_.Scientistshavetriedmanyways_solvetheproblemandamasscampaign_(start)inChina.,advise,to,result,mask,slowly,it,haveincreased,If,hasbeenstarted,winds,haze雾霾,flood洪水,drought干旱,landslide滑坡,Discussion,Whatcanwedotoprotectourearth?,Task1:Workingroupsoffourandmakealistofyoursuggestions,recycle,savewater,planttrees,saveelectricity,ridebikes,uselesspaper,Writing,Whatcanwedotoprotectourearth?,Task2:Writeashortpassageaboutwhatwecandotoprotectourearth,accordingtothesuggestionsabove.,WorldEarthDay世界地球日(4月22日)它是一项世界性的环境保护活动,其主题为“我们只有一个地球”。2009年第63届联合国大会决议将每年的4月22日定为“世界地球日”。该活动旨在唤起人类爱护地球、保护家园的意识，促进资源开发与环境保护的协调发展，进而改善地球的整体环境。,L,Jointoget