【文档说明】《Unit 2 Topic 2 All these problems are very serious》PPT课件8-九年级上册英语仁爱（科普版）.ppt，共(13)页，4.011 MB，由小喜鸽上传

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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionAGametime对对碰相邻的两个颜色相同的单词可以消掉，老师让学生读单词，老师点击。注意点击时一定要看好再点，否则无法返回。当出现没有相邻的同色椭圆时，游

戏失败。？sandsandstormchangeintocompletelyhumanbeingalthoughhumanbeingreducecompletelyalthoughdesertsandstormChangeintocompletelysanddesertr

educereducesandHumanbeingalthoughreducehumanbeingcompletelycompetitionsandsandstormHumanbeingChangeintodesertalthoughreducecompletelyWhatcantreesdofo

rus?Whatwillourworldbelikewithouttrees?Listento1a,choosetheanswer.Theboyandgirlsaretalkingabout_____

_A.differenttypesofsandstormsB.thereasonsforsandstormsC.sandstormsindifferentcities（录音1）B1.Treescanstopthewindfro

mblowingtheearthaway.2.Alotofwatercanbesavedbyforests.3.Treescanstopthewaterfromwashingtheearthaway.CRead1aandcompletet

rees’functions.Doyouknowhowsandstormscomeintobeing?Numberthepictures.washtheearthawaymanytreesLookatthepictures,d

escribethemusingthewordsgiven.cutdowntreessandstormscomeintobeingforestsgonechangeintodesertFreetalk:1.Aretreesimportanttous?why(trees’

functions)?2.Whatwillourworldbelikewithouttrees?3.Whatcanwedotoprotecttheearth?Weshould(hadbetter)\oughtto)Weshouldn

’t(hadbetternot\oughtnotto)1.Wehaveknown:1)phrases:2)theimportanceoftrees:2.Wehaveknown:SummaryTrees,ourfriends!(以freetalk为提纲)

环保格言:1、哪里有绿色，哪里就有生命。wherethereisgreen,thereislife.2、我们的地球需要每个人的保护。Weneedeveryonetoprotecttheearth.3、从自己做起，爱护我们的家园。Sta

rtsfromoneself,totakecareofourhomeHomeworkThanksforlistening