世纪大学英语基础第一册Unit讲课文档

世纪大学英语基础第一册Unit第一页，共316页。Unit5-main2PartI ListeningPartIIReadingPartIIISpeakingPartIVTranslation&WritingPartVTimetoRelaxVideoExercisesforU5-Workbook1第二页，共316页。Fromstudyingthisunit,studentsareexpectedtoObjectives1I.Objectives1.2.3.4.realizetheimportanceofbeingfriendlytoenvironment

;gaineaseandfamiliaritywiththetheme-relatedexpressionsandtheirfunctionalstructures;understandthemainideaofTextAandTextB,aswellasmastertheusefulsentencestructuresandwordsandexpressionsfoundinthetwotexts’follow-upexercises;memorizetheusefulsentencesinthetextsandbeabletoreproducethemwhenneeded;第三页，共316页。5.beabletoreadnoticesandunderstandhowtofollowtheinstructionsstatedinthem；6.beabletowritethank-younotes;Objectives2I.Objectives第四页，共316页。II.SuggestedTeachingPlanforUnit5SuggestedTeachingPlanforUnit1TimeContentsPlan1periodTheme-relatedListeningSection1&2A.B.C.D.E.Askstudentstoguesswhatthetopicisfortoday,basedonthevocabularybox;Nowplaytheshorttalkonce,ortwiceifnecessary,andasktheclasstocompletethethreestatementsthatfollow,accordingtothedirectionsgiven;Next,brieflydiscussthethreestatementstoexploretheshorttalk’smainidea;Afterwards,playtheshorttalkagainfordetailssothatstudentscanfillintheblanksinthetextexcerpt;Lastly,makealistofexpressionsusefulfordiscussingenvironmentprotection.第五页，共316页。SuggestedTeachingPlanforUnit2TimeContentsPlanSection3,4&5A.B.C.D.E.Transitmeaningfullyandsmoothlyfromtheshorttalkintothetwodialogues,keepingthethemeinmind;FocusonthewordLEDwhilehandlingthevocabularybox;Nowplaythefirstdialogueonce,ortwiceifnecessary,and,asawaytoexploreitsmainidea,askstudentstodecidewhethereachofthethreestatementsistrueorfalse;Next,playthefirstdialogueagainfordetailssoastoactivateadiscussionbasedonthequestions;Drawstudents’attentiontotheusefulexpressionstheyhavelearnedinthevocabularybox;第六页，共316页。SuggestedTeachingPlanforUnit3TimeContentsPlan1periodTheme-relatedListeningF.Thenplaytheseconddialogueonce,ortwiceifnecessary,andaskstudentstodothelisteningcomprehensionexercises;Afterwards,checktheanswersinameaningfulway,i.e.,notsimplybycallingoutthecorrectchoicesbutbyofferingrelevantinformation.3periodsABriefReviewofTheme-relatedListeningReviewA.B.First,brieflyreviewwhatstudentslearnedinthefirstperiod;Next,raisevariousquestionswiththestudentstofacilitatereviewandenhancecommunication.第七页，共316页。SuggestedTeachingPlanforUnit4TimeContentsPlanAfterfinishingthelisteningtasks,theteacherturnstoTextAoftheunit.Tobegin,theteacherStarterA.B.asksthestudentstomakealistofgreenenergysourcesanddescribetheuseswemakeofeach;givesthestudents10minutestoreadTextAandthendescribewhichmethodforwarmingorcoolingourbuildingsinthedifferentseasonsthewriterhastalkedabout.第八页，共316页。SuggestedTeachingPlanforUnit5TimeContentsPlanTheteacherTextAA.B.discussesthewholetextwiththestudents;guidesthestudentsthroughtheexercises,focusingoncertainoneswhileleavingothersashomework,dependingonstudents’levels.2periodsTheteacherA.asksthestudentstogooverthetextanddothesubsequentmultiplechoicequestions;TextB,TextC&Text-relatedExercisesTextB第九页，共316页。SuggestedTeachingPlanforUnit6TimeContentsPlanB.C.hasthestudentsdothevocabularyexerciseseitherinclassorafterclass.1periodSpeakingTheteacherA.hasthestudentsrelatetheusefulexpressionstothethemeofthetext,askingthemtomakealistoftheirownandthenspeakoutinclass;whilediscussingthetextwiththestudents,callsthestudents’attentiontotheuseofgerundialphrases;TextC

Thistextshouldbereadbythestudentsthemselvesastheirhomeworkorasfast-readinginclass.第十页，共316页。SuggestedTeachingPlanforUnit7TimeContentsPlanB.C.requeststhestudentstoreadloudthedialoguebeforedoingtherole-play(independentofthescript);encouragesstudentstousethelanguagetheyhavelearnedfromthetextsintheexerciseofmonologue.1periodTranslationandWriting,TimetoRelax&WorkbookTheteacherA.B.leavesthesentencetranslationexerciseasthestudents’homework;helpsthestudentslearnhowtowritethank-younotesinEnglishbydoingthefirstexerciseinPracticalWriting,andthenrequiresthemtodothenexttwoexercisesafterclass;第十一页，共316页。SuggestedTeachingPlanforUnit8TimeContentsPlanC.D.playsthesong“SolarEnergy”inclassandhasthestudentsfillintheblanksinthelyrics(thiscanbedoneashomeworkifthereisn’tmuchtimeleftinclass);ifpossible,playstheWorkbookvideoinclassandhasthestudentsdotheexercisebasedonthevideo.第十二页，共316页。Greenbuilding

Greenbuildingisastructuredesignedandbuiltinawaythatlimitsitsharmtotheenvironment.Greenbuildingcanalsorefertotheprinciplesandguidelinesbuildersandarchitectsuseinmakingsuchbuildings.Greenbuildingstypicallyuseenergy,land,andwatermoreefficientlythandootherbuildingsandproducelesswasteandpollution.Theirbuildersoftenchoosematerialsthatarerecycled,thataremadeusingfewtoxicchemicals,orthatcanbeobtainedfromnaturesustainably—thatis,withoutcausinglastingdamage.Theconstructionandoperationofabuildingcanharmtheenvironmentinmanydifferentways.Themakersofgreenbuildingstrytoreduceabuilding’simpactinallpossibleways.Intermsoflocation,forexample,theconstructionofaGreenbuilding1第十三页，共316页。Greenbuilding2buildingcandisturbordisplacewildlife.Themakerofagreenbuildingmighttakecaretochooseabuildingsitewithfewwildinhabitants.Intermsofenergy,designersmightlowercarbondioxideemissionsbyinstallingsolarpanelstogenerateenergy,reducingtheneedforfossilfuels.Therootsofthegreenbuildingmovementcanbetracedtothe1970’s.Duringthattime,politicaldisagreementsledtoatemporaryfuelshortageintheUnitedStatesandWesternEurope.Theshortagecausedmanygovernmentstoadoptbuildingcodesthatcalledforincreasedenergyefficiency.Startinginthe1990’s,severalorganizationsestablishedgreenbuildingguidelinestoassistandencourageinterestedbuildersandarchitects.GovernmentengineersintheUnited第十四页，共316页。Greenbuilding3Kingdomcreatedthefirstguidelinesystem,theBuildingResearchEstablishmentEnvironmentalAssessmentMethod(BREEAM).In1998,anon-profitorganizationcalledtheU.S.GreenBuildingCouncilcreatedtheLeadershipinEnergyandEnvironmentalDesign(LEED)GreenBuildingRatingSystem.BuildingsthatmeetLEEDguidelinesaregivenawardsrangingfromCertified,thelowestrating,toSilver,Gold,andPlatinum,thehighestrating.(fromWorldbook2010)第十五页，共316页。PartI Listening1.Listentotheupcomingshorttalkandthenfillintheblanksinthesentencesthatfollowwithtwoorthreewords.Firstgettingtoknowtheusefullanguagebelowmightbehelpful.PartI Listening1.1UsefulLanguagecallfor

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为…提供PartI Listening1.2第十七页，共316页。BoththeBeijingOlympicsandtheShanghaiExpocalledfor.Theproblemisthatourcitiesaregrowingbiggerandbigger,andthus.Nothingisthantosaveourplanet.greenlife__________Script:warmerandwarmer____________________moreimportant_______________PartI Listening1.3-script第十八页，共316页。Script:Hi,everybody,BoththeBeijingOlympicsandtheShanghaiExpocalledfor“greenlife.”Howaboutyourcarbonfootprinttoday?Whathaveyoudonetoreduceit?Chinaisabigcountrywithalargepopulation.Asinmanyothercountries,urbanizationisgrowingrapidlyinChina,whichmeansmoreandmorepeoplearemovingtothecities.Asaresult,thecitiesaregettingbigger,andthuswarmer.Today,nobodycanturnablindeyetosuchthingsasweatherchange,globalwarming,sealevelrise,andextremeweathers.Asyouknow,suchthingshavemuchtodowithourhumanactivities.Sowecan’tgoonlikethis.Nothingcanbemoreimportantthantosaveourplanet.Thisistheonlyplanetonwhichwelive.Listening1.4第十九页，共316页。Script:Whatshouldwedothen?Thisisaquestiontoallofus.Itisuptoeachandeveryoneofusto“gogreen.”Let’slivealow-carbonlife,andreduceourcarbonfootprint—forthesakeofourplanetandforourselves.Nobodycangiveupbreathing,drinkingandeating.Butwe’llhavenothingifourplanetcannotprovideforus.Listening1.5第二十页，共316页。Hi,everybody,BoththeBeijingOlympicsandtheShanghaiExpocalledfor“greenlife.”Howaboutyourcarbonfootprinttoday?Whathaveyoudoneto1)?Chinaisabigcountrywithalargepopulation.Asinmanyothercountries,urbanizationis2)inChina,whichmeansmoreandmorepeoplearemovingto3).Asaresult,thecitiesaregettingbigger,andthuswarmer.2.Listentotheshorttalkagainandfillintheblanksbelowwiththemissingwords.reduceit_________growingrapidly_______________thecities_________2PartI Listening2.1第二十一页，共316页。PartI Listening2.2Today,nobodycan4)tosuchthingsasweatherchange,5),sealevelrise,andextremeweathers.Asyouknow,suchthingshavemuchtodowithourhumanactivities.Sowecan’tgoonlikethis.Nothingcanbemoreimportantthanto6).Thisistheonlyplanetonwhich7).Whatshouldwedothen?Thisisaquestiontoallofus.Itisuptoeachandeveryoneofusto8)“.”Let’slivealow-carbonlife,andreduceourcarbonfootprint—9)andforourselves.Nobodycan10)breathing,drinkingandeating.Butwe’llhavenothingifourplanetcannotprovideforus.turnablindeye_______________globalwarming_______________saveourplanet_______________welive_______gogreen_________forthesakeofourplanet__________________________giveup_______第二十二页，共316页。3.Intheupcomingconversation,ChristineandCharlesaretalkingaboutanewlightsource.Listentothemandthendecidewhethertheconversation-basedstatementsbelowaretrueorfalse.Firstgettingtoknowthefollowingusefullanguagemightbehelpful.LEDemit/I

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ad.lightsourcePartI Listening2.3UsefulLanguage=light-emittingdiode发光二极管散发二极管半导体越来越多地光源3第二十三页，共316页。remind/rI

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defInItlI/ad.PartI Listening2.4UsefulLanguage使想起难忘的那是毫无疑问的。电转变很难想象。环保的明确地，一定第二十四页，共316页。1)2)3)TFPartI Listening2.5______CharlessaysthatExpo2010ShanghaiChinaisagoodexampleofincreasinglyusedLEDs,anewkindoflighting.ChristinefoundtheLEDsattheExpositewonderful.BothCharlesandChristinearealreadylivinglow-carbonliveswithLEDs.T___Script:第二十五页，共316页。Script:DidyousayLED?Whatdoyoumeanbythat?It’stheshortformforlight-emittingdiode.Idon’tgetit.What’sthat?Well,aLEDisasemiconductorlightsource.Everywhere,LEDsareincreasinglyusedforlighting.Expo2010ShanghaiChinaisagoodexample.Oh,Isee.YoujustremindedmeofmytriptotheExposite.Thelightswerebeautifulthatevening.Theywerecolorfulandintenselybright.Itwasareallyunforgettabletrip.Ibetitwas.Bytheway,doyouknowhowmuchelectricityLEDscansave?Christine:Charles:Christine:Charles:Christine:Charles:PartI Listening2.6-script第二十六页，共316页。PartI Listening2.7-scriptIcan’timagine.Butfromwhatyousaid,IcantellthefutureoflightsreliesonLEDs.Yeah,theswitchisalreadyhappening.Intime,I’msuretheirusewillbeevenwider.You’vegottoberight.Theyarereallyenvironment-friendly.That’ssoimportant!Yes,theyare.Wecandefinitelyliveamorelow-carbonlifewiththem.Itsureisagoodstepintherightdirection.Christine:Charles:Christine:Charles:Christine:第二十七页，共316页。4.Listentotheconversationagainandthenanswerthefollowingquestions.ItisLED.______________________________________________1)Whatistheshortformforlight-emittingdiode?Theyareincreasinglyusedforlighting.______________________________________________2)WhatdoesCharlessayaboutLEDs?BecausetheLEDlightswerebeautiful,colorfulandbright.____________________________________________________________________________________________________3)WhydoesChristinesaythatitwasareallyunforgettabletriptotheExposite?PartI Listening4.14第二十八页，共316页。Theycansavemuchelectricity.______________________________________________4)WhatcanLEDssave,accordingtoCharles?Theyareenvironment-friendly.______________________________________________5)WhatisthemostimportantthingaboutLEDs?PartI Listening4.2第二十九页，共316页。5.Intheupcomingconversation,CharlesandChristinearetalkingabouttheLondonCasePavilion.Listentothem,andthenanswerthequestionsbychoosingthebestanswer.Firstgettingtoknowthefollowingusefullanguagemightbehelpful.PartI Listening5.15UsefulLanguageenergyefficiencyLondonCasePavilion/p

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n.justaboutevery…Youtookthewordsrightoutofmymouth.难怪信息几乎你以为我不知道！还要你告诉我！你把我要讲的话先说出来了；千真万确。PartI Listening5.2UsefulLanguageScript:第三十一页，共316页。Script:Speakingofenergyefficiency,whatwasyourfavoriteShanghaiExpopavilion?IwouldsaytheLondonCasePavilion.It’sazero-carbonpavilion.Itotallyagree!WhenIvisitedit,Ihadlunchinthezero-carbonrestaurant.Didyou?Yes,Idid.Youknow,eventhechopsticksanddishescouldbeeatenrightalongwiththefood,becausetheyweremadeofchocolateandpastry.You’retellingme!Nowonderit’sreallyzero-carbon!Charles:Christine:Charles:Christine:Charles:Christine:PartI Listening5.3-script第三十二页，共316页。PartI Listening5.4-scriptJustabouteverysquareinchattheExpositesentthesamemessage:livealow-carbonlifeineverypossibleway.That’ssotrue.Tohaveabettercityistohaveabetterlife.Youtookthewordsrightoutofmymouth.Wecannottalkaboutacitywithouttalkingaboutitswayoflife.Iknowwhatyoumean.Andleadingalow-carbonlifeiskeytobetteringourcity.Hey,look!Somanylightsareon,rightoverourheadsinthisclassroom!Charles:Christine:Charles:Christine:Charles:第三十三页，共316页。PartI Listening5.5-scriptLet’skillthem.Thelightfromallthesewindowsisplenty.Youkillthese.I’lltakecareoftherest.Ok.Christine:Charles:Christine:第三十四页，共316页。1)WhereareChristineandCharlestalking?A)Inazero-carbonrestaurant.B)IntheLondonCasePavilion.C)AttheShanghaiExpo.2)WhatissaidabouttheLondonCasePavilion?A)Itisazero-carbonrestaurant.B)ItisinthecityofLondon.C).Itisthebesteatingplace.PartI Listening5.6D)Intheirclassroom.D)Itemitsnocarbon.第三十五页，共316页。PartI Listening5.73)WhatdidCharlesseeeverywhereattheExposite?A)Anoldwayoflife.B)Differentcultures.C)Differentshapes.4)Whatcanwedotobetterourcity,accordingtoChristine?A)Notusechopsticksanddishes.C)Eatintherestaurant.D)Notuselights.D)Greenlife.B)Livealow-carbonlife.第三十六页，共316页。5)Whataretheygoingtodo?A)Havelunch.C)VisittheShanghaiExpo.D)Moveontothenextpavilion.PartI Listening5.8B)Turnoffthelights.第三十七页，共316页。PartIIReading-main3TextA HowGreenIsMyCityPartIIReadingTextB TheEnergyRevolutionExercisesExercisesTextC HowCanWeSaveEnergy?第三十八页，共316页。PartII ReadingTextAHowGreenIsMyCityMarciaAmidonLusted

1Whenwethinkaboutcities,sometimesallwecanpictureispollutionandheatandsmog.Wemightwonder,“Isitpossibletoliveacleanlifewhenyou’reacityperson?”Well,thankstosomeamazingnewideas,therearealotofpeoplelivingcleanandgreeninthecity!TextA1第三十九页，共316页。1)Whatisthemainideaofthefirstpartofthetext?Newideashaveenabledpeopletolivecleanandgreeninthecity.Question1Para.1ofTextAQuestionAboutThisParagraph第四十页，共316页。我住的城市有多绿马西娅•阿米登•勒斯蒂德当我们想到城市时，我们有时只能想象到污染、高温和烟雾。我们也许会感到疑惑：“当你是个城里人时，有可能过上一种清洁的生活吗？”好啦，由于一些惊人的新理念，已有很多人在城市里过上了清洁、绿色的生活!ChineseVersionChineseVersion第四十一页，共316页。MarciaAmidonLusted:istheauthorofoverfortynonfiction

(非小说类)booksforchildrenandyoungadultsintheU.S.MarciaAmidonLustedNotes第四十二页，共316页。…sometimesallwecanpictureispollutionandheatandsmog.……我们有时只能想象到污染、高温和烟雾。定语从句wecanpicture修饰all，其引导词that已省略。课文中类似的定语从句还有citybuildingsmightgetthechilltheyneed和Thissolvesaproblembuildershavehadtodealwithinotherways.SometimesallwecanpictureNotes第四十三页，共316页。…therearealotofpeoplelivingcleanandgreeninthecity!……很多人在城市里过上了清洁、绿色的生活！句中clean和green分别表示inacleanway和inanenvironmentallyfriendlyway。…therearealotNotes第四十四页，共316页。green:a.harmingtheenvironmentaslittleaspossible尽可能不破坏环境的，绿色的greenLanguagePointse.g.greenenergysourcesgreenfarmingmethodsWeneedtodevelopgreenercleaningproducts.我们需要开发更为绿色的去污产品。绿色能源绿色耕作方法第四十五页，共316页。thinkabout:rememberorconsider想到；考虑thinkaboutLanguagePointse.g.IthoughtofyouwhentheywantedsomeonewhocouldspeakEnglish.当他们需要一个会讲英语的人时，我想到了你。第四十六页，共316页。picture:vt.createanimageinyourmind想象pictureLanguagePointse.g.Canyoupicturelifeontopofamountain?

Pleasepictureyourselflyingonabeachinthehotsun.你能想象在山顶上的生活吗？请想象自己在大太阳下躺在沙滩上的情景。第四十七页，共316页。pollution/

/:n.processofmakingair,water,soil,etc.dirty污染pollutionLanguagePoints第四十八页，共316页。smog/

/:n.formofairpollutionthatisorlookslikeamixtureofsmokeandfog,esp.incities烟雾smogLanguagePoints第四十九页，共316页。thanksto:becauseof由于thankstoLanguagePointse.g.Thankstoyourhelp,wehavesolvedtheproblem.Itwasagreatsuccess—thankstoalotofhardwork.由于你的帮助，我们已经解决了这个问题。由于做了很多艰苦的工作，大功告成了。第五十页，共316页。amazing:a.verygood,especiallyinanunexpectedway;verysurprising令人惊奇的amazingLanguagePointse.g.anamazingachievement/discovery

Herstorywasquiteamazing.令人惊奇的成就/发现她的故事令人惊奇。第五十一页，共316页。

2Citiesarehotplaces.Massesofconcrete,narrowstreets,andtallbuildingstraptheheatfromthesun,cars,trucks,buses,andothermachines.Scientistscallthistheheatislandeffect.Itmakescitiesasmuchastendegreeshotterthansurroundingareas.Onasummerday,it’spossiblefortheroofofatallbuildingtogetashotas190degreesFahrenheit.Youactuallycouldfryaneggupthere!

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heatsup,it’sgettingmoreandmoredifficulttokeepcitiescool.Butthankstosomenewideasforbuildingrooftops,citybuildingsmightgetthechilltheyneed.TextA2第五十二页，共316页。1)Whatfactorshavecausedtheheatislandeffectincities?Factorsincludethesun,carsandtrucks,andothermachinesthatpeopleuseathome.3)Whenitis90degreesFahrenheitoutsideacity,howhotcanitbeinthecity?100degreesFahrenheit.Question1Paras.2-3ofTextAQuestionsAboutTheseParagraphs第五十三页，共316页。

城市是些炎热的地方。大量的混凝土、狭窄的街道和高大的建筑物困住了太阳、汽车、卡车、公共汽车和其他机器散发出来的热量。科学家们把这称作热岛效应。它使得城市比其周围地区要热10度之多。在夏天，高大建筑物的屋顶有可能热到华氏190度。你真的可以在屋顶上煎个蛋!

随着全球气候变热，使城市保持凉爽正变得越来越困难。但由于一些建造屋顶的新理念，城市建筑也许能得到它们所需要的凉爽。ChineseVersionChineseVersion第五十四页，共316页。…asmuchastendegreeshotterthansurroundingareas.……比其周围地区要热10度之多。asmuchas表示“多达…，达到…那种程度”。…asmuchastendegreesNotes第五十五页，共316页。mass

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buildingmaterialthatismadebymixingtogethercement,sand,smallstonesandwater混凝土concreteLanguagePoints第五十七页，共316页。narrow

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1)n.deviceforcatchinganimals陷阱，罗网，夹，捕捉器e.g.abeartrapIthinktheonlywaytocatchmiceistosetatrap.我觉得捕鼠的唯一方法就是架设鼠夹。捕熊陷阱第五十九页，共316页。trap22)vt.prevent(sth.)frommovingfreely卡住，套住，困住e.g.Themousetraphastrappedamouse.There’snowayout!We’retrapped!出不去了！我们被陷在里面了。鼠夹夹住了一只老鼠。第六十页，共316页。machineLanguagePointsmachine/

/:n.manufactureddevice,usu.withmanyparts,thatusespowertodoaparticularjob

机器第六十一页，共316页。scientistLanguagePointsscientist/

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科学家第六十二页，共316页。effectLanguagePointseffect/I

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结果；效果；效应e.g.heatislandeffectsideeffectMygrandpa’sdeathhadabigeffectonme.副作用热岛效应祖父的去世对我影响很大。第六十三页，共316页。degreeLanguagePointsdegree/dI

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度第六十四页，共316页。FahrenheitLanguagePointsFahrenheit/

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oforusingascaleoftemperatureinwhichwaterfreezesat32°andboilsat212°华氏温度计的，华氏的（冰点为32°，沸点为212°）第六十五页，共316页。actuallyLanguagePointsactually

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/fraI/:vt.cook(sth.)inhotoil油煎，油炸e.g.KentuckyFriedChickenFrythepotatoesforabout5minutes.把土豆放在油里炸5分钟。肯德基炸鸡第六十七页，共316页。globalLanguagePointsglobal

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bl/:a.coveringoraffectingthewholeworld全球的，全世界的e.g.aglobalproblemglobalvillage地球村世界问题第六十八页，共316页。climateLanguagePointsclimate

/

klaImIt/:n.generalweatherconditionsinacertainarea气候e.g.warm,wetclimateclimatechangeTheseflowerswillnotgrowincoldclimates.气候变化暖湿气候这些花在寒冷的气候中生长不了。第六十九页，共316页。heatupLanguagePointsheatup:becomehotorwarm变热，变暖e.g.Astheairheatsupinside,theballoonrises.当里面的空气变热后，气球升了起来。第七十页，共316页。rooftopLanguagePointsrooftop/

/:n.屋顶，平屋顶第七十一页，共316页。chillLanguagePointschill/t

/:n.寒冷；凉意第七十二页，共316页。WhenColorCounts

4Inhotpartsoftheworld,peoplehaveknownforalongtimethathouseswithrooftopspaintedwhiteoralightcolorwillbecoolerinside.That’sbecauselightcolorsreflectsunlight.Darkcolorsdotheopposite:Theyabsorbheat,likeaspongeabsorbswater.TextA3第七十三页，共316页。1)Whatdowelearnaboutlightcolorsanddarkcolors?Lightcolorsreflectlightanddarkcolorsabsorbit.2)Whyarehouseswithrooftopspaintedwhitecoolerinside?Becauselightcolorsreflectsunlight.Question1Para.4ofTextAQuestionsAboutThisParagraph第七十四页，共316页。当颜色重要时在世界的炎热地区，人们很久以来就知道，屋顶涂成白色或浅色的房子里面会凉快一些。这是因为浅颜色能反射阳光。深颜色则正相反：它们吸收热，像海绵吸水一样。ChineseVersionChineseVersion第七十五页，共316页。Theyabsorbheat,likeaspongeabsorbswater.它们吸收热，像海绵吸水一样。句中like用作连接词，意为“inthesamewayas”。Theyabsorbheat…Notes第七十六页，共316页。sunlightLanguagePointssunlight/

/:n.lightfromthesun阳光，日光第七十七页，共316页。oppositeLanguagePointsopposite

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p

zIt/:n.personorthingthatisasdifferentaspossiblefromsb.orsth.else对立的人（或物），相反e.g.Thetwomenwerecompleteopposites—Simontallandthin,Georgeshortandfat.这两个人完全相反——西蒙又高又瘦，乔治又矮又胖。第七十八页，共316页。absorbLanguagePointsabsorb

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b

s

b/:vt.takein吸收e.g.absorbheatWaterandsaltsareabsorbedintoourbloodstream.吸收热量水和盐被吸收进我们的血流中。第七十九页，共316页。spongeLanguagePointssponge/

/:n.海绵第八十页，共316页。It’sCooltobeGreen!

5Anotherwaytostaycoolistobegreen—literally.Insteadofcoveringflatroofswithasphalt(whatusuallyhappensincities),somebuildersarestartingtomakerooftopsgreen.Andwe’renottalkingaboutpaintcolorhere.Greenroofsarecoveredwithlivingplants—grass,leafyplants,evenvegetablesandherbs.Someevenhavebloomingflowersforatouchofcolor.

6Onceagreenroofhasbeeninplaceforafewyears,theroot

systemsgrowthickerandactlikeablanket.Buildingsstaycoolerinthesummerandwarmerinthewinter.Greenroofsalsoabsorbalotofrainwater.Thissolvesaproblembuildershavehadtodealwithinotherways.TextA47Greenroofscanbemorethanjustenergysavers,too.Imaginehowniceitwouldbetotaketheelevatoruptotheroofandenjoyapicnicinthegrass!

第八十一页，共316页。1)Whatdopeopleusuallyusetocoverflatroofsinthecity?Asphalt.2)Whatdopeopleusetocoverroofstomakebuildingscoolerinside?Grass,leafyplantsandvegetables.Question1Para.5-7ofTextAQuestionsAboutTheseParagraphs3)Whatcangreenroofsdo?Theycankeepbuildingscoolerinsummerandwarmerinwinter.Theycanalsoabsorbalotofrainwater.第