九年级上二单元

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1、Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionBWhichcolordoyoulikebest?Why?Whichcolorcanmakeyouthemostrelaxed?Whatcantreesdoforus?Whatcantreesdoforus?OurlifeOurenvironmentWhatwillourworldbelikewithouttrees?Whatwillourworldbelikewithouttrees?

2、sandstormdeserthumanbeingsWhatshouldwedo?Weshouldstopcuttingdowntrees.Weshouldpreventpeoplefromcuttingdowntrees.Listento1a,answerthequestions.Whataretheytalkingabout?Whatcausesthiskindofbadweather?Theyaretalkingaboutsandstorms.Peoplehavecutdowntoomanytrees.A

3、lotofrichlandhaschangedintodesert.（录音p35-1a）Read1a,answerthequestion.Whataretrees’functions?Treescanstopthewindfromblowingtheearthaway.Alotofwatercanbesavedbyforests.Treescanalsopreventthewaterfromwashingtheearthaway.A.B.C.Lookatthepicture,describethemusingt

4、hewordsgiven.washtheearthawayforestsgonesandstormscomeintobeingcutdowntreesNumberthepicturesandthentalkaboutthemingroups.()()()()()()Doyouknowhowsandstormscomeintobeing?415362Treesareveryusefultous.Theycanhelpusp_______thewindfromblowingtheearthawayandstopth

5、es_______frommovingtowardstherichland.Treesalsos________waterfromrunningaway.Theycankeepagreatd______ofwater.Sowemuststoppeoplefromc______downtoomanytrees.Otherwisealotofrichlandwillchangeintod_______,l_______onlysand.Wemustgetridof(摆脱)thiskindofbadb______.根

6、据句意及首字母提示完成句子。reventandaveealuttingeserteavingehaviorTreesareimportanttous,whatcanwedotoprotectthem?Weshouldpreventpeoplefrom…ProtectingandSavingWaterWaterisveryimportanttohumanbeings,butnoteverybodyknowshowtoprotectandsaveit.Herearesomeways:1.Passlawsagains

7、twaterpollution.2.Stopfactoriespouringwastewaterintorivers.3.Remembertoturnthetapoffwhenyouleave.4.Collectandreusewastewater....GroupworkUsefulexpressionsThewindisblowingstronglywithlotsofsand.Peoplehavecutdowntoomanytrees.Alotofrichlandhaschangedintodesert.

8、Andalotofwatercanbesavedbyforests.Theycanalsopreventthewaterfromwashingtheearthaway.Stopfactoriesfrompouringwastewaterintorivers.Bye-bye!