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WordsstudyGlobalwarmingUnit4WordsandexpressionsofUnit41.Comparedtothepastfewyears,what’stheweatherlikethisyear?2.Doyouwanttocheckitout?Herearesomepicturesbasedontheactuallifescenesintheseyearsforyoutoreferto.QuestionsInaddition,youmayturntoGraph1.onPage26tofindoutthechangesofthetemperaturesfromlong-termaverage.Conclusion:Thewholeworldisbecomingwarmerandwarmer.Butdoesitmatter?Thisisthetopictoday.Unit4GlobalWarmingReadingTheEarthIsBecomingWarmer–ButDoesItMatter?FastReadingGlancequicklyatthemagazinearticleandanswerthequestions.SophieArmstrongwrotethemagazinearticle.Thenameofthemagazineis“Earthcare”.1.Whowrotethemagazinearticle?2.Whatisthenameofthemagazine?Whatisthewritingstyle?A.Expositive(说明文)B.Practical(应用文）C.Argumentative(议论文）D.Narrative（记叙文）★★★CarefulReading1.Readthetextagainandtrytogetthemainideaofthearticle.Matchthepartswiththemainideas:•Explainhowglobalwarmingcomesabout.•Listtwodifferentattitudesamongscientiststowardsglobalwarming.•Introducethetopicofglobalwarming.It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.PartIPart2Part4Part3QuestionsHowhastheglobalwarmingcomeabout?①Humanactivity---burningoffossilfuels.②Greenhouseeffect---greenhousegases---weneedthosegases.Greenhousegases!What’sgreenhousegaseseffect?Greenhousegasestraptheheatofthesunandkeeptheairsurroundingtheearthwarm.Itiscalledthegreenhouseeffect.③WeaddhugequantitiesofextracarbondioxidetotheatmospherebyburningFossilfuels.Thecarbondioxideintheatmospherewentupfromaround315partspermilliontoaround370partspermillionfrom1957to1997(SeeGraph2onPage26)ThetwodifferentviewpointstowardstheeffectsofglobalwarmingbetweenDr.JaniceFosterandGeorgeHambleyDr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea____________andcouldbe______________.Morecarbondioxideisa__________thing,whichmakescrops_________more_andwillencourage____________________.goupcatastropheveryseriouspositiveproduceagreaterrangeofanimalsOfthetwoideas,whichareyouinfavorof?TheDrJaniceFoster’s.Why?Becausewehavewitnessedalargenumberofdisasterspredictedbysomepeople.Whataretheeffectsanddisastersofglobalwarming?What’sworse,theglaciers(冰川）oftheSouthPolearebeginningtocrack（破裂）TheglaciersofthePolesarestartingtomeltduetotheincreasingtemperaturescausedbyglobalwarming.tsunamiThesealeveltorise.tornadosSeverestormsdroughtsfaminesthespreadofdiseasesThedisappearanceofspeciesWhatshouldwedoabouttheterribleeffectsabove?..TrytoreducetheuseofmotorvehicleselectricvehiclebikerunningSolarenergycarPlantingtreesCleaningtherubbish疑难句破解并背诵下列句子。•Thereisnodoubtthattheearthisbecomingwarmerandthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.•毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成的，并非是一种无规律的自然现象。Somebyproductsofthisprocessare“greenhouse”gases,themostimportantoneofwhichis,carbondioxide.这个升温过程的一些副产品就叫作“温室”气体，其中最重要的就是二氧化碳。•Itmeansthatmoreheatenergytobetrappedintheatmospherecausingtheglobaltemperaturetogoup.这就意味着更多的热量被困在大气层中，从而引起全球温度上升。•Evenifwestartreducingtheamountofcarbondioxideandgreenhousegases,theclimateisgoingtokeeponwarmingfordecadesorcenturies.即使我们开始减少二氧化碳和温室气体的含量，在未来几十年或几个世纪内，气候仍会持续转暖。ReturnthegreenworldtousAssignment1.Writeanargumentationtitled“EnvironmentProtection”basedontheviewpointsinthetextandyours.2.PreviewthelanguagepointsinthetextandfindoutyourdifficultpointsLet’smakethisworldabetterplace!