高中英语Unit 2 The environment Task外研版必修五.ppt

unit2task designingaposter pleaselistthethingsthatwecandotopreservetheenvironment turnoffthetapwhenyouarecleaningyourteeth turnoffthelightswhenyouarenotinaroom walkorcycleeverywhere takeabagwithyouwhenyougoshoppingusebothsidesofasheetofpaper recyclepaperandglass getsomethingrepairedratherthanbuyanewoneuseunleadedpetrolincars skillsbuilding1 listeninganddrawingconclusions ifyouhear yetanotherskyscraper 摩天大厦 hasbeenbuiltinshanghai therearealreadysomeskyscrapersinshanghai whenyoudrawconclusions 得出结论 youthinkaboutsituationandtheinformationyouhave andtrytodecidewhatitmeans sometimesalltheinformationyouneedaboutasubjectisnotincludedinthesourceyouarelisteningto thisiswhenyoumustdrawaconclusion man thetrainisgoingtobelatetoday woman i mnotsurprised thetrainisoftenlate a i vejustbeentothehospital andthedoctoraskedmetotakesomemedicine thespeakerisill parta listentotheseshortdescriptionsfromnewsreportsanddrawaconclusionaboutwhatkindofnaturaldisasteroccurred 发生 ineachsituation flood fire earthquake typhoon台风 drought干旱 it fortendaysandthentheriver andwaterwaseverywhere thefieldthatwehadjustwithricewascompletely 2thehousejustwentupinflames hadbeenraining burstitsbanks coveredwithwater wecouldnotstopitfromburningdown 3 oneminuteiwasstandingandthenextihadfallenontheground severalcars bigholesontheroads itwasreally iamlucky the groundwasmovingallaroundme weretrappedin frightening tobealive 4 thewindwasverystrongandtherainjust manyshopwindowswerebrokenandlotsof poureddown streetsigns weredestroyed 5 therehasbeen formorethanfiveyeashere thecrops andthereis hardlyanythingtoeat norain havefailed 失收 partb listentothenewsreportanddecideifeachconclusionbelowislogical 符合逻辑的 ifitis tickthebox 1 thefireshavebeenburningforquitesometime 2manypeoplehavelosttheirhomes 3thepolicesuspectcitizensoflosangeleshelpedstartthefires 4thereporterthinksitisverysadthatoldtreeswillbeburnt 5 thefiredepartmenthasgivenuphopeofstoppingthefires step1 listeningtoalecture parta yourscienceteacherhasaskedyourgrouptomakeaposteraboutdesertificationforanationwidecontest 竞赛 beforeyoucanbeginyourposter youmustlearnaboutdesertification listentoyourteacher slectureandcollectinformationaboutyourtopic whatisdesertification wheredoesithappen howarepeopleaffectedbyit whydoesithappen whoshouldbeconcerned questions 1 whatisdesertification itiswhenusablelandbecomesdryandturnsintoadesert 2 wheredoesithappen ithappensinafrica theusa southamericaandchinaandsoon 3 howarepeopleaffectedbyit peoplelosetheirhomesandfarms manyfamiliesstarve 挨饿 andothersmovetothecitytofindwork 4 whydoesithappen peopleplanttoomuchonthelandwithoutgivingitarest toomanyanimalsalldependonthesamelandtoeat andpeoplecutdowntreesforfuelsandtomakespaceformorefarms 5 whoshouldbeconcerned everyoneshouldbeconcerned skillsbuilding2 readingforinformation whenwereadforinformation welookforspecific 具体的 informationthatweneed wereaddifferentsourcestofinddifferenttypesofinformation weoftenscanthetextwhilelookingforthespecificinformationthatwerequire parta inpairs thinkofreasonswhyyoumightwanttoreadthefollowing partb readthefollowingfromanewspaperandunderlinetheinformationwhichanswersthequestionsthatfollow atwhattimecanyouseethematrix revolution whatistheweatherlikeinbeijing whathasjustopened howmanypeoplewenttotheopening step2 readingascientificarticle 1 whatisdesertification thenameforwhathappenswhenfarmablelandisturnedintodesert 2 whatiscndmc cndmcisshortfor chinanational desertificationmonitoringcentre thestepschinahastakentostoptheprocessofdesertification encourage build stop from provide plant effective greenwall spend undergroundwater research bettermanagement training in sharing informationandsolution usingsatellites partb listthreethingsstudentscandotohelpstopdesertification collectsomemoneytohelpthepoorfarmers saveasmuchwateraspossibleinourdailylife askscientiststofindmoreplantsthataresuitableforgrowingindeserts makesomeposterstoeducatepeopleaboutthegrowingproblem step3designingaposter a desertificationiscausedbypeoplecuttingdowntreesanddiggingupbushesb peopleshouldnotkeeponplantingthingsonthesamepieceofland thelandneedsarest c desertsformnaturally weshouldn tworryaboutdesertification itwillfixitself d out datedfarmingmethodscausedesertification e weneedtolearnhowtousewaterbetter ifwearecareful we llhaveenoughwaterforpeople animalsandplantsandthennodesertswillform f farmersshouldstoplettingtheiranimalseatallthegrass ifthereisnograss adesertwillform g wemuststopbuildingfactories theypollutethewaterandalltheplantsdie thenthelandturnsintodesert discussthefollowingquestions whyisitimportanttopreventthedesertification whatcanwedotopreventthedesertification whatprogresseshavebeenmadetofightdesertification nowadays desertificationhasbeenaglobalproblem muchgoodfarmlandisindangerofbecomingdesert insomeareasofnorthwestchina desertificationisalsoaseriousproblem manyareashavebeenaffected itisworseforthepeoplewholiveinthesedesertareas notonlydotheybreatheindustyair buttheyalsolosetheirhomesandfarmsbecausethelandistoodrytouse manyfamiliesstarve andothersmovetothecitiestofindwork thesepeople livesarebeingruinedbecauseofdesertification thedisasterismainlycausedbybadfarmingmethodsandseveralyearswithverylittlerainfallmakesthingsworse peopleplanttoomuchonthelandwithoutgivingitarest toomanyanimalsalldependonthesamelandtoeatandpeoplecutdowntreesforfuelsandtomakespaceformorefarms chinahastakenmanymeasurestostoptheprocessofdesertification includingeducatingpeopleaboutdesertification encouragingfarmerstobuildfencestostopwindfromblowingthedirtaway chinaisplantinga greenwall ofplantsandbushesinthenorth eastpartofthecountryandalsospendingmoneytryingtofindundergroundwaterandisresearchingwaystogetittothes