【課件】選擇性必修第三冊(cè)Unit 3 Reading and Thinking P26-28

ReadingandThinkingP26-28新人教版選擇性必修Book3

Unit3ENVIRONMENTALPROTECTIONLookatthepictureanddiscussthequestions.1.Wheredoyouthinkthisphotowastaken?2.Whatdoesthisphotomakeyouthinkof?1.IthinkthisphotowastakenineithertheArcticorAntarctica,asthoseplaceshavelargeicesheetslikethis.2.Thephotomakesmethinkoftheproblemofglobalwarming.Nowdiscussthefollowingquestions.Pre-readingBeforeyouread,lookatthegraphandthepicturebelowanddiscussthesequestionsingroups.1.Whatisthegraphabout?Whatinformationcanyougetfromit?ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2016.Itshowsthetemperatureanomaly,whichshowshowmuchthetemperaturehasrisenabovewhatitwouldusuallybeatabaselevel.12.Haveyoueverseenthephotobefore?Whatmightbethestorybehindit?Ihaven'tseenthisphoto,butIhaveseenphotoslikeit.Thestoryisthatthepolarbearstarvedtodeathbecauseitcouldnotfindenoughtoeat.Readthetextandanswerthequestions.While-reading21.Whathappenedtothepolarbearinthephoto?Whydidthewriterwriteaboutit?Thepolarbearinthephotodiedofstarvation.Thewriterwroteaboutitbecauseitshowedoneoftheeffectsofrisingtemperaturesduetoclimatechange.2.Whyisthe“natural”greenhouseeffectimportantandnecessary?The“natural”greenhouseeffectisimportantbecauseitwarmstheEarth'ssurfaceandkeepsithabitable.3.Whataretheconsequencesofhighgreenhousegasemissions?Highgreenhousegasemissionsleadtomoreheatenergybeingtappedintheatmosphereandrisingtemperatures.4.Whydidtheauthormentiontheclimatescientists'warning?Theauthormentionedtheclimatescientists'warningbecauseitisessentialthatwetakeactionandsoitneedstobebroughttoeveryone'sattention.5.Whatistheauthor’spurposeofwritingthistext?Theauthor’spurposeistoinformthereaderandinspirethemtodowhatevertheycantodealwiththisproblem.Readthetextagainandcreatadiagramdescribinghowthegreenhouseeffectworks.DrawadiagramDiagramsareveryusefultoolsthatcanbeusedtobrainstormideas,mapoutprocesses,showcauseandeffectrelationships,explainanewideaorconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyoutovisualisetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-solving.3THEGREENHOUSEEFFECTEarthAtmosphereHeatreflectedbacktoEarth'ssurfaceHeatreflectedbackintospaceSunlightReflectedsunlightDiscussthesequestionsingroups.1.Whatexamplesofextremeweatheranddisastersdoyouknow?Canyoumakealist?TherearesadlymanyexamplesofextremeweatheranddisastersIknowof,suchastheextremerainfallinFranceandthedroughtinEastAfricain2014.Therewerealsoheatwavesonnearlyeverycontinentduetoclimatechange.42.Doyouthinkclimatechangeistheresultofhumanactivity?Giveyourreasons.Idothinkthatclimatechangeistheresultofhumanactivitiesbecausethemajorityofscientistsalsothinkso,andalsobecauseglobaltemperatureshavefollowedtheriseinglobalemissionsandpopulation.3.Whodoyouthinkshouldtakeresponsibilityfordealingwithclimatechange?Whatcanwedo?Ithinkweallneedtotakeresponsibilityfordealingwithit.Individualscanchangetheirbehaviorandtrytoreducetheirfootprint,whilecompaniesandgovernmentscandothesameonthelargerscale.LanguagepointsP26-27新人教版選擇性必修Book3

Unit3ENVIRONMENTALPROTECTION課文回顧根據(jù)課文內(nèi)容填空。Asweknow,Earthisgettingwarmerandwarmer,______resultsinmeltingiceandrisingsealevels.In2013,adeadpolarbear________(find)onNorway'sArcticislandofSvalbard.Expertssaidthatitwaslowsea-icelevels______(cause)byclimatechange_____killedthepolarbear.Scientistsmentionthatthe“man-made”greenhouseeffectisabigproblem.______riseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwide,__________(cause)seriousdamageandcostinghumanlives.whichwasfoundcausedthatThecausingTheglobalclimate’sfurtherwarmingresulted_______thecontinuedgreenhousegasemissions_________(require)theattentionofpeopleallovertheworld.Governmentsneedtomakepoliciesandtakemeasures__________(reduce)greenhousegasemissions.Asindividuals,weshouldalsoreduceour“carbonfootprint”byrestrictingtheamountofcarbondioxideour_________(lifestyle)produce.fromrequirestoreducelifestylesThereislittledoubtthatEarthisgettingwarmerandwarmer.句意：毫無疑問，地球正變得越來越暖和。Thereislittle/nodoubtthat...毫無疑問……，that引導(dǎo)的是同位語從句。其中there不能換成it。例句：1.Thereisnoboubtthattorealizeagoal,oneneedsnotonlyknowledgebutalsogoodpersonalities.2.Thereislittledoubtthatstudentsshouldlearnsomethingabouthowcomputerswork.隨堂練：1.Atpresent,thereislittledoubt_______theshortmessageplaysanincreasinglyimportantroleinourlives.2.毫無疑問，看電視會(huì)影響人們的行為舉止。漢譯英：thatThereisnodoubtthatwatchingTVcaninfluencethewaythatpeoplebehave.Anexpertwhohasstudiedpolarbearsformanyyears

saidthatfromthepositionofitsbody,thebearappearedtohavestarvedanddied.句意：一位長期研究北極熊的專家說，從實(shí)體的姿勢(shì)看，這只北極熊像是餓死的。定語從句賓語從句starvev.(使)挨餓；餓死starvefor渴望，極想得到starvetodeath餓死starvationn.挨餓starvingadj.極想的，渴望的bestarvingfor渴望得到某物例句：1.Hewasworriedthathissonswoulduseuphismoneyandstarvetodeath.2.Sometimespeoplearestarvingformorethanfood.Sometimestheyarestarvingforlove.隨堂練：1.Thelonelystudentis_______(starve)forfriendship.2.Sincethefaminebrokeout,thenumberofpeopledyingof__________(starve)hasbeenincreasing.starvingstarvationThereisstrongandcomprehensiveevidencethattheriseinthetemperaturehasledtoanincreaseinextremeweathernaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.句意：有充分和全面的證據(jù)表明，氣溫升高導(dǎo)致全球極端天氣和自然災(zāi)害增加，不僅造成嚴(yán)重破壞，而且使人喪命。同位語從句現(xiàn)在分詞短語作結(jié)果狀語Itisourresponsibilitytoseizeeveryopportunitytoeducateeveryoneaboutglobalwarming,alongwithitscausesandimpacts,becausethisisthemostseriousissueaffectingallofusontheplanet.句意：我們有責(zé)任抓住每一個(gè)機(jī)會(huì)，教育每個(gè)人了解全球變暖的原因和影響，因?yàn)檫@是影響這個(gè)星球上我們所有人的最嚴(yán)重的問題。形式主語不定式作真正的主語原因狀語從句現(xiàn)在分詞短語作定語Completethesentenceswiththecorrectformsofthewordsinthebox.broadcastcomprehensiveecologystarveseize1.TheAmazonbasin,knownasthe“l(fā)ungsoftheworld”,notonlyprovidessome__________balancefortheplanet,butalsofoodandresourcesforthelocalnatives.2.Thousandsofbabypenguins__________todeathbecausethechangingclimateforcedtheirparentstoleavethemandtravellongdistanceinsearchoffood.ecologicalstarved13.ManyexpertslinkChina’seconomicsuccesstothe____________reformthatChinahasundergonesince1978.4.Thespeakersaidthemediashouldmakemore________thatspreadawearnessoftheclimatecrisisandpossiblesolutions.5.Todealwithclimatechange,wemust_________prehensivebroadcastseizeCompletethepassagewiththecorrectformsofthewordsinthebox.fuelpolicyreleaserestrictsustaintrendCarbondioxideis________throughhumanactivitiessuchasdestroyingforestsandburningfossil________,aswellasnaturalprocessessuchasvolcaniceruptions.Themeasurementsbyclimateexpertsshowarising_______ofcarbondioxideemissions.Ifthiscontinues,ourplanetwillfacefurtherenvironmentaldisasters.Inresponsetothisenvironmentalissue,Chinaisimplementingsignificant_______andmeasurestoaddressclimatechange,aimingto_______coalconsumption,promoteaharmoniousrelationshipbetweenmanandnature,builda__________energysystem,andadvocateamoderate,green,andlow-carbonlifestyle.releasedfuelstrendpoliciesrestrictsustainab