Unit1Reading课件牛津上海版（使用本）（2007）英语九年级下册

1Environmentandlife1SavingtheEarthReading行业PPT模板http:///hangye/话题引入AWhatdoyouknowabout...?Whatdoyouknowabout'globalwarming'?Matchthetwohalvesofthesesentences.Thefirstonehasbeendoneforyou.AWhatdoyouknowabout...?Whatdoyouknowabout'globalwarming'?Matchthetwohalvesofthesesentences.Thefirstonehasbeendoneforyou.1Thereisanatmosphere 2Thisatmospherecontrols 3However,wearepolluting4Theatmosphereischanging5Thisheatwillcause6TheiceattheNorthandSouthPoles7Thentheseawillriseandawillmelt.b'globalwarming'.couratmospherewithharmfulgases.dcausefloods.eandkeepingintoomuchheatfromtheSun.faroundtheEarth.gtheheatontheEarth.fgcebadThefirstparagraphofapieceofwritingoftentellsyoualotaboutthecontent.Lookatthetitle,thefirstparagraph,theheadingsandthepicturesinTony’sreviewonpage3.1

Whatisthenameofthebookthatisreviewed?Whoaretheauthors?2

Thebookiscalledaguide.Whatdoesthisnamesuggestthebookwilldo?3

Aconsumerisanyonewhobuysandusesthings.Whatdoyouthinkagreenconsumeris?4 Whatdoyouthinkthemaintopicofthebookis?ThenameofthebookisTheYoungGreenConsumerGuide,andtheauthorsareJohnElkingtonandJuliaHailes.Aguidegivesusinformation,helporinstructionsaboutsomething.Thisbookwilltellushowtobegreenconsumers.He/Sheissomeonewhoonlybuysgoodsthatwillnotharmtheenvironment.Themaintopicofthebookisaboutgoodsthatareharmfultotheenvironmentandgoodsthataresafefortheenvironment.Readthroughthepassageonpage3quicklyandpayspecialattentiontotheheadings.Thenmatchthepictureswitheachpartofthepassage.1 Thegreenhouseeffect ____2 Damagetotheozonelayer ____3 Destructionoftheforests ____4 Badhabits ____5 HowcanwesavetheEarth? ____abcdebcaedWhileyoureadThisbooksaysourworldisindanger.Itdescribesthevarious

threatstotheenvironment.Thesituationissoserious

thatwemustdosomethingtosavetheEarth.Readtheintroductionandanswerthefollowingquestions.E11

WhatdoesTheYoungGreenConsumerGuidesayaboutourworld?2

Whatdoesthebookdescribetous?3

Whatdothewritersthinkofthesituation?4

Whatdothewritersthinkwemustdo?Itsaysourworldisindanger.Itdescribesthevariousthreatstotheenvironment.Itissoserious.WemustdosomethingtosavetheEarth.ThegreenhouseeffectThewritersaskusto‘imaginethattheEarthis

insideakindofgreenhousewiththeatmosphere

aroundit.Theatmosphereactsliketheglass:it

letssunlightinandkeepswarmthfromgetting

out.Theatmosphereisessentialforallliving

things.Withoutit,theEarthwouldbeascoldandlifelessasthesurfaceofthemoon’.‘Thetroubleisthatouratmosphereischangingbecausewearepollutingitwithchemicals—intheformofgases—anditiskeepingintoomuchheat!’Thesegases,mainlycarbondioxide(CO2),areproducedbyburningfuelssuchaspetrol.Thegreenhouseeffectmaycausetheleveloftheseatoriseandfloodcitiesandevenwholecountries.Readthefirstpartofthereview.Putthefollowingsentencesinthecorrectorder.____a ToomuchCO2makestheatmospherebecomethicker.____b Theatmospherecannotletthewarmthout.____c Theatmosphereletsthesunlightin.____d TheEarthkeepstoomuchwarmth.____e ThesunlightreachestheatmosphereoftheEarth.____f TheEarthbecomesveryhot.____g Peopleburnfuelslikepetrol

andproducealotofCO2.1234567Readthefirstpartagain.Completethefollowingparagraphwithproperwords.actsgreenhouseletswarmthlifelesschemicalsmucheffectlevelfloodDamagetotheozone

layerThewriterstellusthat‘ozoneisagaswhichoccurs20to50kmabovetheground.ItformsanessentialprotectivelayeraroundtheEarth.Withoutit,theSunwouldburnusup.Wearemakingholesintheozonelayer,mainlybyusingchemicalscalledCFCs.Weusetheseinfridgesandspraycans,andtomakeplasticitemssuchasfastfoodboxes.Readthesecondpartofthereview.Completetheillustrationwithproperwordsornumbers.E48-4(1)_____to(2)_____kmabovethegrounda(3)__________layerthatpreventstheSunfrom(4)______________________Thisisa(5)__________inthelayerwhichismainlycausedby(6)__________.Theyareusedin(7)__________and(8)__________,andtomakeplasticitemslike(9)_________.2050protectiveburningusupholeCFCsfridgesspraycansfastfoodboxesDestructionoftheforestsTheburningandcuttingdownoftheforestsismakingthegreenhouseeffectworsebecausetreestakeinCO2.Italsocausessoil

erosionandflooding,aswellasdestroyingthehomesofpeopleandanimalsthatliveintheforests.Readthethirdpart.Completethecause-effectchart.E5CauseEffecttheburningandcuttingdownoftheforestssoilerosionfloodingdestroyingthehomesofpeopleandanimalsthatliveintheforestsReadthethirdpartagain.Tellwhytheburningandcuttingdownoftheforestscausessomanybadeffects.E6BecausetreestakeinCO2.TheburningandcuttingdownoftheforestsmakesthegreenhouseeffectworsemakingthegreenhouseeffectworseBadhabitsManyofourhabitscausepollution,especiallyourhabitofusingthingsonceandthenthrowingthemaway.Thiscreatesmassivemountainsofrubbish.Wedonotknowwhattodowiththerubbishanditpollutesourlandandsea.Forexample,peoplethrowawayasmanyassevenbilliondrinkcansinBritaineachyear.ThatisenoughtoreachfromtheEarthtothemoon.Readthefourthpartofthereview.Thinkaboutthesequestions.E71 Whatisthefourthpartmainlyabout?2 Whatkindofhabitisthemostserioustotheenvironment?3 Whatistheresultofthisbadhabit?4 WhydidthewritersgivetheexampleoftheBritishthrowingaway7billiondrinkcanseveryyear?5 Whereistheexampleprobablyfrom?Itisaboutthebadhabitsthatcausepollution.Thehabitofusingthingsonceandthenthrowingthemaway.Itcreatesmassivemountainsofrubbish.Becausetheywantedtotellushowseriouslyourbadhabitsaffecttheenvironment.ItmaybefromTheYoungGreenConsumerGuide.HowcanwesavetheEarth?Thebookisaskingustobecome‘greenconsumers’.ThatmeansweshouldonlybuyanduseenvironmentallyfriendlygoodssothatwecansavetheEarth.Thesegoodswillnotdamagetheenvironment.Let’sbegreenconsumersandenjoylivingabetterlifeontheEarth!Readthelastpartofthereview.Thinkaboutthesequestions.E81 Findthetopicsentenceofthisreviewinthispart.2 Whydidthewriterstellustodoso?3 Whatisthewriters’suggestiontoallofus?4 Canyougiveanyexamplesof

environmentallyfriendlygoods?WeshouldonlybuyanduseenvironmentallyfriendlygoodssothatwecansavetheEarth.Becauseenvironmentallyfriendlygoodsdonotdamagetheenvironment.Tobegreenconsumersandenjoy

livingabetterlifeontheEarth!UsethewordsfromC1tocompletethesesentences.Changetheformsifnecessary.C21

Thatplanetisprobably_____________.2

Herdressislongenoughto_____________thefloor.3

Carelessdriversarea_____________tothelivesofothers.4

Thegovernmentplanstospendalargeamountofmoneyprotectingourcity’s_____________frompollution.5

Rainfallmostoften_____________inthesouthofChina.6

Waterfromthestorm_____________thevillage

yesterday.lifelessreachthreatenvironmentoccursflooded1

Thecovering

ofozonearoundtheEarthprotectsusfromtheSun.2

Insomecities,manypeoplewearmasksovertheirnosesandmouthstoprotectthemselvesfromthedangerousanddirtythingsintheair.3

Themixtureofgasesaroundourplanetisessentialforalllivingthings.4

Weusethingslikegas,oil,petrolandcoal

toprovideuswithheatandpower.5

Floodscauseharm

tothesmallvillageeveryyear.Findthesewordsinthereview,workouttheirmeanings,andusethemtoreplacetheitalicizedwordsinthesesentences.C3atmospherefuelslayerdamagepollution

layer

pollution

atmosphere

fuels

damageComprehensionReplacetheitalicizedwordswithinformationfromthereview.Thefirstonehasbeendoneforyou.D11

Thewriterscomparetheatmosphereto

it.it=theglass2

Theysaywearepollutingit

withgases.3

Thegasescomefromburningthem.4

It

protectsusfromtheSun.5

Thedamagetotheozonelayeriscausedbythem.6

Theburningoftheforestsmakesit

worse.7

Thishabitcreatesahugeamountofrubbish.it=theatmospherethem=fuels(suc