热带雨林课件

Unit4OurWorldTopic1PlantsandanimalsareimportanttousSectionC---byLinhaiyanChengxingMiddleSchool,FuQing教学目标与要求复习导入与呈现语言点练习巩固作业阅读1阅读2Teachingaimsanddemands1.(1)Learnsomewordsaboutrainforests:cover,surface,meter,dark,forest,control,wood,rubber,protect(2)Learnsomeotherwordsandexpressions:fact,infact,makeup,large,lake,sea,ocean,drop,indanger(3)Learnsomeusefulexpressions:thousandsandthousandsofbeveryimportanttobenecessaryfor…can’tlivewithout…saveeverydropofwaterReviewcomparativeandsuperlativedegreesofadjectives:(1)Theplantsintheforestshelptomaketheairfresher.(2)Butnowrainforestsarebecomingsmallerandsmaller.(3)Watermakesupthelargestpartofthehumanbody.3.Describenatureresourceandrealizetheimportanceofenvironmentprotection:(1)Theyalsohelptocontroltheweather.(2)Therainforestsgiveuswood,rubber,fruit,medicineandsoon.(3)Itisimportanttoalllivingthings.返回REVIEW•ReviewcomparativeandsuperlativedegreesofadjectivesComparetheirheightYaoMingistallerthanOlaYaoMingisthetallestplayerintheteam.ComparetheirageIam55yearsoldIamjust10JackychanisolderthanLinMiaoke.LinMiaokeisyongerthanJackyChan.WhatdoyouthinkofthenumberofChinesepopulation?•Itisthelargestintheworld,andit’sbecominglargerandlarger.比较级and比较级越来越好：betterandbetter越来越新鲜：fresherandfresher越来越漂亮：moreandmorebeautiful返回LeadinThisisourworldHowdoyoufeel?Question:Howshouldwedotoprotectourworld?•Savewater•Protecttheforests•Redusetheairpollution•Planttrees•……..PresentationRainforestsQuestion:Couldyoutellmesomeimportancesofrainforests?Orwhyweshouldprotectrainforests?Well,nowlet’scometothenewlessontogettheanswers.1a.ReadandunderstandRainforestscan:•Helptomaketheairfresher.•Helptocontroltheclimate.•Giveuswood,rubber,fruit,medicine•………Trytothinkaboutit.Youcandoit!1b.Workalone()1.Rainforstscoverhalfoftheearth”ssurface.()2.Wecaneverythingclearlyinrainforests.()3.Rainforestscangiveusmanyusefulthings.()4.Inrainforestsalltheanimalsliveontheground.()5.Withoutrainforests,theenvironmentwouldbecomequiteterrible.Marktrue(T)orFalse(F)accordingto1a.FFTFT返回Rainforestsreallyhelpusalot,soweshouldtryourbesttoprotectthem.Apartfromthis,what’salsoimportanttoourworld？absolutely,it’swater.let’sseehowimportantwateris!2a.ReadandunderstandWorkaloneWateris＿＿＿toalllivingthings.all＿＿＿and＿＿＿needwater.＿＿＿alsoneedwatertodrink,tocookand＿＿＿＿＿＿..＿＿＿Water,therecouldbenolifeonearth.Sowemustsavewater.Completethepassageaccordingto2a.importantplantsanimalsHumanstowithoutclean返回They’replantingtrees,it’salsoagreatthingtoprotectourenvironment.Whataretheydoing?•Springiswarm.it’sthebest＿＿toplanttrees.Whenyouplanttrees,first,＿＿aholeintheearth,makesuretheholeis＿＿enoughforthetree.Then,putthetreeinthehole,and＿＿itstraight.Afterthat,filltheholewithearth,thenmaketheearthhardwithyour＿＿.Finally,waterthetree.IfeverythingisOK,thetreewillgrowleavesafewdayslater.Let’slistentothetapetogethowtoplanttrees.3.Workalone.Listentothetapeandfillintheblanks.seasondigbigkeepfeet返回Languagepoints1.Rainforestscover6%oftheearth’ssurface.热带雨林覆盖地球表面的百分之六.百分数的读法:先读基数词,再读百分号%﹝percent﹞6%读作:sixpercentcover覆盖Watercoversmostpartsoftheearth.2.Thousandsandthousandsofanimalsliveinrainforests.千千万万的动物生活在热带雨林.当hundred,thousand,million,billion等表示不确定的数目,表示一个大概的数量,常用复数形式,后面跟介词of,意思为,数以百计的，成千上万的,数百万计的,几十亿的.当这些词与具体数字连用时不用复数形式.Fivehundred,sixthousand.3.Manyofthemliveinthetreesover30metersfromtheground.Over=morethan多于,超过意思.Morethan/Over100studentsare的plantingtrees.Lessthan少于,不超过TheylivedinShanghailessthanayear.4.Infact,watermakesupthelargestpartofthegumanbody.Makeup形成,组成,构成.Girlstudentsmakeuponly40%ofallthestudents.5.Wemustsaveeverydropofwater.Drop名词,滴Adropofwater还可以当动词,掉下,放弃Abottledroppedontothefloor.返回Exercises随堂巩固1.Five_____peoplearewaitingforbus.A.HundredofB.hundredsC.hundredD.hundredsof2.Ican______whenIwasfiveyearsold.A.MakeabedB.makethebedC.MakebedD.makethebeds3.Weshouldpretectwildanimals_______.A.WellB.goodC.muchD.many4.Thenumberofwildanimalsarebecoming________thanbefore.A.MuchmoresmallB.muchmoresmallerC.SmallD.muchsmaller5._________hisphotosareverybeautiful.A.MostB.MostofC.ThemostD.MoreCBADB返回Homework•Talkingroupafterclassaboutwhatelsewecandotoimproveourenvironment.•Makealistoftheanimalsindangeranddiscusswhatshouldbedonetosafethem.返回Thanksalot!Bye-bye