Unit4GlobalWarming1/68LightourcitiesHeatourbuildings1.Whatdoweuseenergyfor?Manythingsconsumeenergy

inourdailylife.2/682.Wheredoesallthisenergycomefrom?Windpoweracoalpowerstation3/68anoilrefineryanuclearpowerplant煉油廠4/68solarpanelshydro-electricdam5/68Renewable

non-renewable:energysourcessuppliesofitneverrunoutonedaytheywillrunout.6/68Renewableornon-renewable?√7/68Renewableornon-renewable?√8/68

CoalOilNaturalgasUraniumWind(windpower)Sun(solarenergy)Water(hydro-electricpower)Plantwaste(biomassenergy)Hotspringsorgeysers(geothermalenergy)Thesea(tidalenergy)FossilfuelsNon-renewableRenewable化石燃料9/683.Whatarefossilfuels?Ancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Alsoknownasnon-renewableenergybecauseoncetheyareusedtheyhavegoneforever;theycannotberenewed.10/684.Whatisthegreenhousemadeandusedfor?11/6812/6813/68Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.14/685.Howdoesitwork?

Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsothe

plantscangrow

throughoutthe

coldperiod.15/686.Whatarethe“greenhousegases”?

Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,includingcarbondioxide,methane(甲烷,沼氣)andwatervapor.16/687.Whatdoyouthinkgreenhousegasesdo?

Theytrapheatfromthesunandthereforewarmtheearth.17/68TheEarthIsBecomingWarmer–ButDoesItMatter?18/68Lookatthemagazinetitlequicklyandtrytofindout:howisthetextorganized?Ithasatitle;afirstparagraphthatisinbold;themaintext;Diagram(graph);somequotes.19/68FastReadingReadthetextfastandanswerthequestionsonpage27Ex120/68Whowrotethemagazinearticle?Whatisthenameofthemagazine?

SophieArmstrongwrotethemagazinearticle.ThenameofthemagazineisEarthCare.21/68Whatarethenamesofthethreescientistsmentionedinthearticle?

TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.22/683.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?

Theydon'tagreewitheachother.

Dr.JaniceFosterthinkstheeffectsof

globalwarmingcouldbeveryserious.

GeorgeHambley

thinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.

23/684.Whatarethetwographsabout?Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to.Graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997.Graph1:Graph2:24/68Whatisthemaintopicofthearticle?

Globalwarming25/68CarefulReadingReadthetextcarefullyandsumupthemainideaofeachpart.26/68Partone:(para1)Introduceatopic/raiseaquestionParttwo:(para2-5)Explainhowglobalwarmingcomesabout.Partthree:(para6)ListtwodifferentattitudesPartfour:(para7)Drawaconclusion.27/681.Whatisthepurposeoftheparagraphthatisinbold?Tointroducethetopic.Toillustrate(闡述)pointsbyprovidingevidence.2.Whatarethediagramsfor?Questionnaires28/683.Theauthorprobablyagreesthat________

A.actuallyglobalwarmingisgoodforman.

B.weshoulddonothingabouttheglobalwarming.

C.catastropheswillhappeniftheglobekeepsonwarming.

D.alotremainstobefoundoutabouttheeffectsofglobalwarming.29/684."Buttherearesomeverydifferentattitudesamongscientiststowardsthisissue.”

“issue"heremeansthesameastheonein___.

A.Iboughtthenewstampthedayofitsissue.

B.Theyaretalkingaboutoneofthekeyissuesintheelectioncampaign.

C.Thegovernmentisexpectedtoissueastatementabouttheelection.

D.Themagazinehas12issueseachyear.30/68ReadingReadwiththetapeandfinishPart2onpage27True/false31/681.Howhastheglobalwarmingcomeabout?2.Whataretheeffectsofglobalwarming?CarefulReadingReadthetextagainandanswerthequestions.32/681.Howhastheglobalwarmingcomeabout?HumanactivityTheburningoffossilfuelsgreenhousegasesgreenhouseeffectHugequantitiesofextracarbondioxide(Weneedthosegases)33/682.Whataretheeffectsofglobalwarming?④Encourageagreaterrangeofanimals.①Thesealeveltorise.②Severestorms,floods,droughts,famines,thespreadofdiseases,anddisappearanceofspecies.③Makeplantsgrowquicker.Cropswillproducemore.Badeffects:Goodeffects:34/68Ofthetwoideas,whichareyouinfavorof?TheDrJaniceFoster’s.Why?Becausewehavewitnessedalargenumberofdisasterspredictedbysomepeople.35/68tsunamiThesealeveltorise.36/6837/68tornados38/68Severestormsdroughtsfaminesthespreadofdiseases39/68destructionofspecies40/68DicussionWhatshouldwedoabouttheterribleeffectsabove?41/68..Trytoreducetheuseofmotorvehicles42/68electricvehiclebikerunningSolarenergycar43/68PlantingtreesCleaningtherubbish44/68UsinglanguageWhatcanwedoaboutglobalwarming45/681.Whoarethewritersoftheletters?OuyangGuangandtheeditorofEarthCare.Reading46/682.What’sthepurposeofOuyangGuang’sletter?

Togetsomesuggestionsforwhathecandoaboutglobalwarming.ReadOuyang’semailandanswer:47/683.WhatareOuyangGuang’stwoconcerns?

Thefirstisthathefeelsthatindividualcannothaveeffectonhugeenvironmentalproblems.Thesecondisthatheisnotsurewheretostartwithhisproject.48/685.DoesEarthCareagreewithOuyangGuang’sopinionthatindividualscanhavelittleeffect?

No,EarthCaredoesn’tagree.ReadEarthCare’sreplyandanswer:49/686.WhatsuggestionsdoesEarthCaregivehim?①Turnelectricalappliancesoffwhennotusingthem.②Don’tturnuptheheat,putonmoreclothes.③Walkorrideabike,don’tdrive.④Recycle.⑤Buythingsmadefromrecycledmaterials.⑥Buyproductsthatuselessenergy.⑦Planttrees.⑧Talkwithfamilyandfriendsaboutglobalwarming.50/68GroupDiscussionWhatelseshouldourgovernmentdotoslowdownglobalwarming?51/681.Givemoneytogreenthesurroundingsandprotecttheforests.52/682.Encouragepeopletofindandusemorerenewableenergy.53/68rareplantsrareanimals3.Makelawstoprotectrareplantsandanimals.54/68Returnthegreenworldtous55/68Let’smakethisworldabetterplace!Haveaniceday.Goodbye!56/681.onbehalfof代表…一方；作為…代言人

I’dliketothankyouonbehalfofmyfamily.2.putupwith忍受；容忍=

tolerate

Idon’tknowhowyouputupwiththeirendlessquarrels.putforward提出putoff推遲；延期putout撲滅；熄滅putthrough接通電話puton穿上；上演putdown記下；平定putaside儲存；放在一邊57/68Icannotputupwiththetoothache.

Wecan'tchangethebadweather,sowemustputupwithit.

Iwon’tputupwithherrudenessanylonger!Ican’tputupwithstressofstudy58/683.advocatevt.擁護；提倡；主張

advocate(doing)sth.提倡做某事

advocatethatsb.(should)do…提倡…..如：Idon’tadvocatebuildingafactoryaroundourschool.Peopleadvocatethatsomething(should)bedonetoprotecttheenvironment.

59/684.electricalapplianceonsolongasyouareusingit.electric:電.電力(指產(chǎn)生電或用電直接產(chǎn)生或用電操作等)electricgenerator發(fā)電機anelectricshock觸電anelectriclight電燈electrical:adj.與電相關(guān)concerningelectricity

概括總稱電器anelectricalengineer.

anelectricalfault.電力故障electricalequipment/appliances60/685.solongas=aslongasconj.

只要,假如It’sOKtoleaveanelectricalapplianceonsolongasyouareusingit.2.只要你不把書弄臟,就能夠借給你.只要你在使用電器,使它處于工作狀態(tài)是能夠.Youmayborrowthebooksolongasyoukeepitclean.61/68

—Doyouhaveaminute?I’vegotsomethingtotellyou.—OK,______youmakeitshort.A.nowthat B.ifonlyC.solongas

D.everytime[點撥]nowthat既然，表示原因；ifonly是……就好了，后面普通用虛擬語氣；everytime每次，每當，表示時間。62/68同義詞組:onconditionthat,onlyif,ifproviding(that),provided(that)注意:aslongas

有時表示“像…那么久”;onlyif

接從句用于句首,主句主謂語倒裝;ifonly

表示“要是…該多好啊!”需要虛擬語氣.63/68同義表示：Youcangooutonconditionthatyouwearanovercoat.Youcangoout__________________youwearanovercoat.Youcangoout____________youwearanovercoat.Youcangoout___