仁爱英语九年级unit2topic2sectionB课件.ppt

《仁爱英语九年级unit2topic2sectionB课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionB（歌曲1）教学资源共享Whichcolordoyoulikebest?Why?Whichcolorcanmakeyouthemostrelaxed?Whatcantreesdoforus?Whatcantreesdoforus?OurlifeOurenvironmentWhatwillourworldbelikewithouttrees?Whatwillourworldbelikewithouttr

2、ees?sandstormdeserthumanbeingsWhatshouldwedo?Weshouldstopfromcuttingdowntrees.Weshouldpreventpeoplefromcuttingdowntrees.Listento1a,answerthequestions.Whataretheytalkingabout?Whatcausesthiskindofbadweather?Theyaretalkingaboutsandstorms.Peoplehavecutdowntoomanytrees.

3、Alotofrichlandhaschangedintodesert.（录音1）Read1a,answerthequestion.Whataretrees’functions?Treescanstopthewindfromblowingtheearthaway.Alotofwatercanbesavedbyforests.Treescanalsopreventthewaterfromwashingtheearthaway.A.（影片）B.C.Lookatthepicture,describethemusingthewords

4、given.washtheearthawayLookatthepicture,describethemusingthewordsgiven.manytreesLookatthepicture,describethemusingthewordsgiven.changeintodesertLookatthepicture,describethemusingthewordsgiven.forestsgoneLookatthepicture,describethemusingthewordsgiven.sandstormscomei

5、ntobeingLookatthepictures,describethemusingthewordsgiven.cutdowntreesNumberthepicturesandthentalkaboutthemingroups.()()()()()()Doyouknowhowsandstormscomeintobeing?415362Treesareveryusefultous.Theycanhelpusp_____thewindfromblowingtheearthawayandstopthes_______frommo

6、vingtowardstherichland.Treesalsos________waterfromrunningaway.Theycankeepagreatd______ofwater.Sowemuststoppeoplefromc______downtoomanytrees.Otherwisealotofrichlandwillchangeintod_______,l_______onlysand.Wemustgetridof(摆脱)thiskindofbadb______.根据句意及首字母提示完成句子。reventan

7、daveealuttingeserteavingehaviorTreesareimportanttous,whatcanwedotoprotectthem?Weshouldpreventpeoplefrom…ProtectingandSavingWaterWaterisveryimportanttohumanbeings,butnoteverybodyknowshowtoprotectandsaveit.Herearesomeways:1.Passlawsagainstwaterpollution.2.Stopfactori

8、espouringwastewaterintorivers.3.Remembertoturnthetapoffwhenyouleave.4.Collectandreusewastewater....GroupworkReadanddiscussdifferentwaysofprotecti