外研高中英语必修三

外研高中英语必修三第1页/共21页firehurricaneearthquake

volcaniceruptionlightninglandslideNaturaldisasters第2页/共21页Whatdisasterisit?Sandstorms第3页/共21页Whatareyourfeelingsaboutsandstorms?(Activity1onpage31)第4页/共21页What’sthecausesofsandstorms?(Activity2onp31)第5页/共21页Readingandvocabulary第6页/共21页skimming(findthemainideawitheachparagraph）Para.1suggestionsPara.2causesPara.3descriptionsPara.4measuresPara.5introductionPara.6effectsFast-readingTip:Thefirstorlastsentencecanbehelpful.第7页/共21页IntensivereadingReadthepassageagainandanswerthequestions.Tip:thekeywords.第8页/共21页Paragraphs2—4:1.Whataresandstorms?2.Wheredosandstormsoftenoccur?3.Whoexperiencedasandstormasachildand

whatdidhedescribeaboutit?4.WhyhavesandstormsincreasedinChina?5.WhensandstormshappeninBeijing,what’stheweatherlike?第9页/共21页1.Whataresandstorms?sandstormsstrongdrycarry

sandwindsareParagraph2:第10页/共21页Paragraph2:2.Wheredothesandstormsoftenoccur?ABCDCentralAsiaNorthAmericaCentralAfricaAustralia

第11页/共21页3.Whoexperiencedasandstormasachildandwhatdidhedescribeaboutit?RenJianbo.terrible;frightening;dangerousParagraph2:不定式做什么句子成分？

是什么从句？Tohavebeencaughtinasandstormwasaterribleexperience.ItwasthemostfrighteningandthemostdangeroussituationI’veeverbeenin.第12页/共21页4.WhyhavesandstormsincreasedinChina?Sandstormsappeartohaveincreasedinrecentyearsasaresultofdesertification.Paragraph3Asaresultofdesertification.appeartodo第13页/共21页When__________happen,citizenswakeuptoanorange_____andstrong______thatcoverthecityinathick,brown-yellow_____.dustskywindssandstorms5.WhensandstormshappeninBeijing,whatistheweatherlike?Traffic?trafficmovesveryslowly.Paragraph4第14页/共21页Paragraphs5-6:Theyadvisepeoplenottogoout.Whatisthegovernmentdoingtocontrolsandstorms?Thegovernmentisplantingtrees.What’stheweatherexperts’advice?第15页/共21页Sandstormsarestrong,drywinds_________carrysand.Theyappearto___________(increase)inrecentyearsasa_____ofdesertification.Whentheyhappen,thetrafficmovesvery

______(slow)becausethethickdustmakes___difficulttosee.Whenasandstormarrivesinthecity,weatherexperts______peoplenottogoout.So____youwanttogoout,you’dbetterweara______.Scientistshavetriedmanyways___solvetheproblem.___________(prevent)itcomingnearer,thegovernmentisplantingtrees.advisetoresultmaskslowlyithaveincreasedif②③④⑤⑥⑦⑧⑨⑩①that\whichTopreventPost-readingCompletetheblanks（走进高考）第16页/共21页1.forcenturies多个世纪以来2.amasscampaign大规模运动3.solvetheproblem解决问题4.getcaughtin被困住5.appearto似乎，好像6.asaresultof由于7.cutdown砍倒；削减8.digup挖掘9.wakeupto警觉到；意识到10.makeitadj/nountodo/clause12.makesbill让某人不舒服13.preventsbfromdoingsth阻止某人做某事Importantphrases第17页/共21页Howtopreventsandstorms?Brainstorm:

第18页/共21页recycleplanttreesridebikesu