tornadohurricaneNaturalDisastersearthquakesandstormlightningvolcaniceruptionModule4SandstormsinAsiaBCDANorthAmericaCentralAfricaAustraliaCentralAsiaBCAInnerMongoliaGansuXinjiangFastreading:1.Whataresandstorms?2.Whataretheplaceswheresandstormsoftenoccurintheworld?3.Whatisdesertification?4.Whydopeoplewearmasksinasandstorm?5.WhatistheBeijinggovernmentdoingtopreventthedesertfromcomingnearer?Furtherreading:1.Sandstormsarestrongwindscarrying____throughtheair.1.Sandstormsarestrongwindscarrying____throughtheair.A.dirtandmudB.rainandheatA.dirtandmudB.rainandheatC.sandanddustD.cloudandsnowC.sandanddustD.cloudandsnow2.Whatdotheexpertsadvisepeopletodowhenasandstormarrivesin2.Whatdotheexpertsadvisepeopletodowhenasandstormarrivesinthecity?thecity?A.Don’tgooutB.Don’twearmasks.A.Don’tgooutB.Don’twearmasks.C.Don’tgotoworkasusual.D.Don’tridebicyclesC.Don’tgotoworkasusual.D.Don’tridebicycles3.Thefactorsthatcauselandtobedesertare____.3.Thefactorsthatcauselandtobedesertare____.A.cuttingdowntreesB.diggingupgrassA.cuttingdowntreesB.diggingupgrassC.climatechangesD.alloftheaboveC.climatechangesD.alloftheabove4.Fromthelastparagraph,weknow____.4.Fromthelastparagraph,weknow____.A.thegovernmentistakingmeasurestopreventsandstorms.A.thegovernmentistakingmeasurestopreventsandstorms.B.thedistancebetweenthedesertandthecenterofBeijingisonlyB.thedistancebetweenthedesertandthecenterofBeijingisonly250kilometers.250kilometers.C.morethan30milliontreeshavebeenplantedinBeijing.C.morethan30milliontreeshavebeenplantedinBeijing.D.thegovernmentwon’tplanttreesanymoreinthenextfiveyearsD.thegovernmentwon’tplanttreesanymoreinthenextfiveyearsCompletethesesentences:1.Weatherexpertshavef_________anotherbigsandstorminaweek’stime.2.It’sf__________tobeoutsideinasandstorm.3.Iwasinaverybigsandstormsomeyearsago.Luckily,everyones_______.4.There’salotofd____onthefloor.Weneedtosweepitaway.5.Desertificationisalongp______thattakesmanyyears.6.ManyBeijingc______cycletowork.orcast(ed)righteningurvivedustrocessitizensfrighteningfrightening,,orangeorangesky,sky,strongstrongwind,wind,thickdust,thickdust,slowlyslowly•dirty,breathe,mask,cycling,traffic,etc.Question:Howdosandstormsaffectpeople’slifeDiscussion:Whatmeasuresshouldwetaketopreventsandstormscoming?Homework:1.Findmoreinformationaboutsandstormsontheinternetorotherbooksandwriteashortpassageaboutsandstorms.2.Designaposterthatencouragespeopletoprotecttheenvironment.