北師大版（2019）高中英語必修第三冊Unit 8 Green Living單元達標+能力提升測試卷 2套匯編（含答案解析）.docx

1、北師大版2019扃中英語必修第三冊Unit8GreenLiving單元達標+能力提升測試卷2套匯編Unit8GreenLiving單元達標測試卷第一部分閱讀理解（共兩節(jié)，滿分50分）第一節(jié)（共15小題；每小題2.5分，滿分37.5分）閱讀下列短文，從每題所給的A、B、C和D四個選項中，選出最佳選項。ACity:HangzhouLaunched:2008Size:2,965stations/69,750bikesPrice:$28.59depositf押金）+timechargeWhiletakingalookatthiscity,youmayseethebestbikesharinginthe

2、world.Asthesecondontheplanetbysize,theHangzhouPublicBicycleSystemisoneofthemostcommonandusefulshares,largelybecauseitscombinedwithpublictransportation:asinglecardcanbeusedinsubway,bus,taxiandbikesharing.Residentsandtouristscanputdownadepositof200ChineseYuan（about$29）andrideforanhourforfreeinthisscen

3、iccity.Eachadditionalhourcostsonly$0.15.Itwasalsothefirstnew-generationbike-sharingsysteminChina.City:BarcelonaLaunched:2007Size:420stations/6,000bikesPrice:$61.93peryearBarcelonasBicyclingProgramdevelopedSpainsbike-sharingbusinessinabigway.Thisprogramtookofflikewildfireonwheels,andbecausefourtimesb

4、iggerinoneyear.Itinspireddifferentcopycatprogramsalloverthecountry.Today,Spainhas132bike-sharingsystems.Theprogramisoneoftheworldsmostrespectedandpopularshares.Butitisonlyopentoresidentsandtouristsarenotallowedtousethem.City:ParisLaunched:2007Size:1,751stations/23,900bikesPrice:$38.52peryear/$2.26pe

5、rdayBikesharinginParisisthestaroftheworld.Launchedin2007,itistheworldslargestoutsideofChina.CheapbyAmericanstandards,youcanridearoundParisona$1.7daypassthefirsthalfhourofeachtripisfree.Becausethissystemcoversthecitywithanaverageof50stations答案以及解析第一部分閱讀理解第一節(jié)A答案：1-3.ACA解析：1.細節(jié)理解題。根據City:Barcelona中的Bar

6、celonasBicyclingProgramdevelopedSpainsbike-sharingbusinessinabigway.”可知,BarcelonasBicycling項目極大地開發(fā)了西班牙的共享單車生意。故選A項。2. 細節(jié)理解題。根據“City:Paris”中的價格介紹Price:$38.52peryear/$2.26perday1可知，巴黎的共享單車收費為每天2.26美元。故選C項。3. 細節(jié)理解題。根據City:Hangzhou中的Residentsandtouristscanputdownadepositof200ChineseYuan(about$29)andride

7、foranhourforfreeinthissceniccity.”以及City:Paris中的最后一句中itsafavouritewithbothlocalsandtourists可知,HangzhouPublicBicycleSystem和bikesharinginParis都對本地居民和外來游客開放。故選A項。B答案：1-4.ABCD解析：1.推理判斷題。根據第一段”TheAndeanvillageChinchero.Sweepingviewsofsnow-coveredpeaksrulethehorizon.可知,本段主要描述了位于安第斯山脈中的村莊Chinchero周圍的美麗風景。2

8、. 細節(jié)理解題。根據第五段的Thenewairportcouldquadruple(使變?yōu)樗谋?tourists,to6millionfrom1.5millionayear,whichwouldmeanaburdenof22,000visitorsaday.PresidentVizcarrasupportedtheprojectin2018asawaytogetsupportinsouthernPeru.nJ知，機場修好后，游客的數量會提高四倍，為了贏得秘魯南方的支持，總統同意了修建機場。3. 推理判斷題。根據第二段的Thisdoubtfulprojectwoulddamagetheheart

9、landoftheIncacivilisation.pollutionanduncontrolledurbanisa-tion.和倒數第二段的TheairportsconstructioncouldreducethewatershedofLakePiuray.wherefewpeoplelive.可Ml,在這個地方修建機場，對當地的動植物、印加文明的中心地帶以及村莊等都有著消極的影響。4. 觀點態(tài)度題。綜合第二段的信息以及最后段的Insteadofanotherairport,Perushoulddevelopsustainabletourismandinvestininfrastructur

10、etomaketheseareasmoreaccessible.nf知，作者認為秘魯政府應該發(fā)展可持續(xù)性旅游業(yè)，投資基礎設施建設，而不應該在著名的古文化遺址建設機場。故選D項。A項表示”中立的”;B項表示”贊成的”;C項表示“漠不關心的”,這些與文章的整體語氣不符。C答案：1-4.DDAB解析：1.詞義猜測題。根據文章第二段開頭可知，一件T恤衫的生命周期要經歷五個階段:原材料，生產，運輸，使用和處理。原材料的生產階段又包括播種、灌溉、施肥和收獲等。再根據第三句Whilecottonisanaturalfibre（纖維制品）andnotasharmfultotheenvironmentasman

11、madefibres,itstilltakesatollinthematerialandproductionstages.可知，雖然棉花是自然纖維，不像人造纖維一樣對環(huán)境有害，但它仍然會對原料籌集和生產階段造成不好的影響。所以D項正確。2. 細節(jié)理解題。根據第五段中的However,theaverageAmericanhouseholddoes400loadsoflaundryperyear,usingabout40gallonsofwaterperload.可知,每年一個美國家庭平均要洗400次衣服，每次要用40加侖水,40x400=16,000加侖，所以D項正確。3. 推理判斷題。根據文章

12、第三段中的theseprocessesalsouseagreatdealofwaterandenergy.Commercialdyesandbleachesareharmfulpollutantsandcaneventuallypollutegroundwater.可知，生產過程費水費能源。而印染原料和漂白劑是有害的污染物,會最終污染地下水。所以A項正確。4. 寫作意圖題。根據文章及最后一段第一句Therearealotofthingsyoucandotohelpreduceyourimpact.可知,文章的寫作意圖是呼吁人們從自身穿衣開始為環(huán)保做貢獻。D答案：1-4.BCDA解析：1.推理判

13、斷題。結合第三段的Oncefoundinthemillions,asfewas300redsiskinsremaininVenezuela和后面的內容可知，原先這種鳥有幾百萬只,但是現在只有300只了;對于這些鳥來說，剩下的時間不多了，除非人類立即采取保護措施。因此這句話說明了保護它們的緊迫性。2. 細節(jié)理解題。根據第二段的Theplanistohavefarmersplantorganiccoffeeplantswhicharecoveredwithbranchesthatmakegoodnestingplacesforthebirds.可知,這種有機咖啡植物的樹枝可以為這種鳥提供良好的筑巢

14、的地方。3. 細節(jié)理解題。根據第四段的Theywillbeabletosetpricesforsuchhighqualityproductsthatcanbefivetimeshigherthanlegalpricessetbythegovernment.可知，參與這個保護項目的農民們可既以高價出售他們的咖啡。4. 標題歸納題。本文主要介紹了一些科學家和委內瑞拉的一些農民們種植一種有機咖啡植物,從而為當地瀕臨滅絕的紅色黃雀提供良好的棲息地，以此來拯救這些珍貴的鳥類。故A項符合主題。第二節(jié)答案：-EAGDF解析：設空處前句講的是通過每天做些小事就可以減肥，此處承接上文，指出小的變化也能夠有大的作

15、用，E項符合語境，其中small為關鍵詞。故選E項. 設空處為小標題，根據本段內容可知，餐盤的直徑會對你吃多少食物產生很大的影響，你的餐盤越大，裝的東西就越多，你吃進去的東西也就越多，因此本段主要是建議要用小一點的餐盤，故選A項。 空前一句講到坐下來吃光一整袋薯片或一整包曲奇餅干是很容易的，下一段建議用食物日記或應用程序來記錄攝入的卡路里，因此該空內容應是關于一整袋薯片或一整包曲奇餅干中的卡路里含量的，G項(但是如果你知道它們有多少卡路里，你可能決定改變主意)符合語境，其中的howmanycaloriesareinthem為關鍵信息。故選G項。 空后的andyoumaybereadingthe

16、signsallwrong說明你可能完全誤解了這些跡象，設空處應與誤解身體信號方面的問題相關。D項(我們常常把口渴誤認為饑餓)符合語境。空后的allwrong和選項中的mistake相呼應。故選D項。 根據本段小標題Exercisemore以及段落中的exercise,10-mileruns等可知，本段內容有關鍛煉，根據關鍵詞可定位至F項，F項指出鍛煉不一定是刻意為之，也可以是有趣的，符合語境。第二部分語言知識運用第一節(jié)答案：1-5BADCB6-10BDACC11-15ACBDA解析：1.由前一句中的TheJeepwasfullypacked和下文的setofftowardstheirnewh

17、ome可知,大家都擁進車里準備出發(fā)，也包括(including)薩姆。故選B項。2. 根據后一句中的Alexdroveformiles可知，亞歷克斯發(fā)動(started)了車的引擎。故選A項。3. 由空前一句中的theyneededmoresupplies可知,他們需要一些日用品,所以是在超市那里停(stopped)車了o故選D項。4. 根據空前的drivingintotheparkinglot可知，進停車場要尋找(hunt)車位停車。故選C項。5. 根據空后的manycars,shoppingcarts,flashinglightsandbusypeople可知,停車場很擁擠(crowded

18、)o故選B項。6. 由前一句中的manycars,shoppingcarts,flashinglightsandbusypeople可知，停車場很擁擠,人和車很多，所以薩姆應是覺得被噪音(noise)包圍。故選B項。7. 根據卜一段第一句Alexwasabouttopullinwhenastrangecarsuddenlypulledintotheemptyspot.可知，此處指亞歷克斯找到了一個空的(empty)車位。故選D項。8. 由上下文可知，司機把車停在了亞歷克斯好不容易找到的車位上，然后直接沖向超市，這肯定讓亞歷克斯-家很生氣。故anger符合語境。9. 根據后文的Alexcaugh

19、ttheman可知，亞歷克斯追上了那個人，所以他是快速(quickly)下車。故選C項。10. 據本段最后,句Theyreturnedtotheparkingspaceandtheircarssothattheycouldbothparkthere.可知，他們把車都停在空的車位上，所以是分享(share)車位。故選C項。11. 由上文可知，兩個人要分享車位，而一個車位上停兩輛車應該是需要調整(adjusted)車的位置。故選A項。12. 此處為同義復現。根據最后一段的第三句Itmadeastrongimpressiononhim.可知，整件事讓薩姆印象深刻(impressed)oimpress

20、ed和impression為同義復現。故選C項。13. 由上下文可知，亞歷克斯把車和陌生人的車停在一起后就進超市買東西去了，這說明整件事以和平方式落幕。故peacefully符合語境。14. 由上文可知，車位被占后，父親并沒有生氣，而是選擇和陌生人一起分享車位，說明父親是慷慨的。故generous符合語境。mean意為吝嗇的;aggressive意為挑釁的。15. 由上文可知，車位被占，父親并未生氣，而是以和平的方式解決問題，這是一種善意(Kindness)o故選A項。第二節(jié)答案：which;that;their;in;topull;using;havetaken;powerful;stren

21、gth;a解析：考查關系代詞。withwhichtheycouldkilltheirenemies.”是介詞+關系代詞弓I導的定語從句。 考查強調句型。該句為強調句型,被強調的是時間狀語morethan8,000yearsago。 考查形容詞性物主代詞。名詞prey前應用形容詞性物主代詞作定語。 考查介詞。inlength是固定表達，意思是”在長度上考查不定式的用法。不定式短語”topullthestringofthelongbowallthewayback作目的狀語。 考查現在分詞的用法?，F在分詞短語usingthisbow作定語，修飾anyone,use與主語anyone之間存在邏輯上的主

22、謂關系，故用現在分詞形式。 考查時態(tài)。時間狀語inthepasttwenty-fiveyears常與現在完成時連用;本句主語為復數名詞,故謂語用復數形式。 考查形容詞。空格處所填單詞在句中作表語，故用power的形容詞形式。 考查名詞。空格處所填單詞在句中作主語，需用strong的名詞形式。 考查冠詞。此處意思是:它(弓)是人類歷史上的一大進步。表示泛指,應用不定冠詞;great是以輔音音素開頭的單詞,故用不定冠詞a。第三部分寫作第一節(jié)答案：DearEditor,Imastudentatamiddleschool.Imwritingtoexpressmygreatconcernfortheen

23、vironmentinmyhometown.Thickforestsandgreengrassusedtobeseen.However,aspeopleherecutdownmanytreestobuildhousesandgrowmorecrops,theforestswereseriouslydestroyed.Besides,becauseofclimatechangesitrainslittlenow.Asaresult,sandstormsoccurfrequently.Topreventtheprocessofdesertification,allthepeopleshouldta

24、kegoodcareoftheforestsandplantmoretrees.Lookingforwardtohearingfromyou.Yours,Lihua第二節(jié)答案：SinceIwasaverynaughtyboy,Irockeditharder.EachtimeIrockedharder,sheaskedmetostop.ButIwashavingtoomuchfunscaringherandswingingaround.SowhatdidIdo?Irockeditashardasmylittlebodycouldmanage.Itgottothepointthatmygrandm

25、otherwasyellingatthetopofhervoice,whilekickingandscreamingatmetostop.Itwassomuchfun.TheridefinishedandIknewIwasgoingtobeintrouble.Buttomysurprise,mygrandmaactuallyenjoyedtheterrifyingexperiencewithme.Iactuallydidntgetintotrouble,butshevowedtoneverrideitwithmeagain.Tothisday,mygrandmaandIstillrecalla

26、ndlaughaboutourterrifyingSunWheelexperience.ShestoldmethatshealwaysthinksbacktothatmomentwhenshethinksabouthowmuchIhavechangedsincethen,andIalwaysthinkbacktoitasafunexperiencewithherthatIwillneverforget.Unit8GreenLiving單元能力提升測試卷第一部分閱讀理解（共兩節(jié)，滿分50分）第一節(jié)（共15小題；每小題2.5分，滿分37.5分）閱讀下列短文，從每題所給的A、B、C和D四個選項中，選

27、出最佳選項。AAnimalsinAntarcticaTherearenolandanimalsthatactuallyliveinAntarctica!However;thesurroundingoceanisrichinlivingcreatures!Itsjusttoocoldtosupportverymanylifeforms!NowletsmeetsomeoftheAntarcticasanimals.WeddellSealTheyarethesouthernmostpinniped（鰭足類的）intheworld.Malesaregenerallysmallerthanfemales

28、.Interestingly,newbornpupshaveacoatoflonghair,whichtheywillshed（脫落）withinthefirstmonthastheprotectivelayeroftheirbodyisdeveloped.BlueWhaleNamedforitsblue-graycolor,thishugeanimalmaygrowtoberoughly100feetlongandweighmorethan120tons!Abluewhaleeatsabout4tonsofkrill（磷蝦）perdayduringthefeedingseason!Thism

29、eansthatabout40millionkrillareeateneverydayforsixmonthsbyabluewhale!ThetongueofthebluewhalecanbeasbigasaVolkswagen!Thebluewhaleistheloudestanimalonearth!RockhopperPenguinOneofthemostbeautifulpenguins,therockhoppershaketheirheadsandcausetheiryelloweyebrowstoflyintoahaloinordertoattractamate!Wandering

30、AlbatrossThisspeciesofalbatrosswanderstheoceanformonthsatatimesearchingforfood.Itsleepsontheoceansurfaceatnightanddrinksseawater.Thewanderingalbatrossisthelargestbirdintheworldintermsofthewingspan一11feet!RossSealRosssealsareveryrarelyseenbecausetheylivedeepwithinthepackice.ItisbelievedthatRosssealsf

31、eedmainlyonsquid,fishandkrill.TheywerenamedaftertheBritishpolarexplorerSirJamesRoss,whofirstdiscoveredthemin1840.EmperorPenguinEmperorpenguinsarethebiggestofthe18penguinspecies.Theyareflightlessbirds.TheyaretheonlylivingspeciestoreproduceduringtheharshAntarcticwinter.Withoutanest,thefatheremperorpen

32、guinkeepstheeggwarmbyholdingitonhisfeetfor23monthsuntilspring,duringwhichthefatherdoesnteatanythingandhejusteatsalittlesnowformoisture.Unbelievable!WhataDad!1. Weknowfromthe5thparagraphthatthewanderingalbatross.A. nevertouchesthelandisagoodswimmerandflyerB. drinksfreshwatersleepsonboats2. Accordingt

33、othelastparagraph,wecanlearnthat.A. thereare19penguinspeciesonearthemperorpenguinsspendmostoftheirtimeonlandwheretheyfindfoodB. penguinsarebirdswithnowingsthemotheremperorpenguinlaysoneeggduringthewinter3. Weknowfromthereadingthat.A. amaleWeddellsealislargerthanafemalerockhopperpenguinsarethemostbea

34、utifulpenguinsB. itishardtoseeaRosssealabluewhaleeatsabout4tonsofkrilleverydayBANativeAmericanvillageintheU.S.state,Alaska,hasvotedtorelocateitsentirepopulationofsome600peopleduetothethreatofrisingseas.Shishmaref,locatedonatinyislandnorthoftheBeringStraitthatseparatestheUnitedStatesandRussia,islosin

35、guptothreemetersofshorelineeachyear.ItisoneofdozensofoldvillagesinAlaskathatfacegrowingthreatsoffloodinganderosionduetoglobalwarming.Itsresidents,whoaremembersoftheInupiattribe,voted89to78torelocate,saidDonnaBarr.Thisisnotthefirsttimeitsresidentshavemadesuchadecision.Theyvotedin2002torelocatebutthat

36、effortfailed.ItsnotgoingtobethelasttimethattheUnitedStateshastodealwithcommunitiesseverelythreatenedbyclimatechangeandimpactsandwhetherornottheycanstaythere,shesaid.InShishmaref,TommyRichter;pastoroftheLutheranChurch,theislandsonlychurch,saidthecommunitywastomoverleavingitsheritagebehind.Therearepeo

37、pleherewhohavebeenhereforgenerationsanddontwanttoleaveatall,hesaid.Thecostofrelocationhasbeenestimatedatsome$180million,andauthoritiesareseekingstateandfederalfunding,accordingtolocalmedia.Wheretorelocateremainstobedecided,theclerksaid.Twositesonthemainlandarebeingconsidered.Relocationcouldtakemoret

38、hantenyears.Theisland,whichis18squarekilometers,liesfivemilesoffthemainland.Itseconomyisbasedlargelyonfishingandhunting.ScientistsattributecoastalerosioninShishmareftoglobalwarmingthathasthawedseaicethatonceshieldedtheislandfromstormsurges.Itslayerofpermanentlyfrozensoilonwhichitisbuilt,ismeltingasw

39、ell.ThevillagealreadyhasmovedseveralhomesandaNationalGuardArmoryawayfromitscoastlineandbuiltseawallsthathavehadlimitedsuccess.Since2014,morethan140tribesandtribalorganizationshavegottengovernmentfundingtohelpaddresstheimpactsofglobalwarming,itsaid.l. TheresidentsinShishmarefvotedtomovebecause.A. the

40、irvillageisbeingfloodedeveryyeartheshorelineoftheirislandisdisappearingB. theyfoundlessfishtobecaughtneartheseamostpeopleexpectedtoleadamodemlife2. Theresultofthevotessuggeststhatsomepeople.A. havenochoicebuttoremainhereB. havenomoneytomovetothemainlandC. realizethedangerofglobalwarmingCI. realizeth

41、edangerofglobalwarmingD. arereluctanttoleavetheirhome3. Whatisproblemwiththerelocation?A.Thecost.B.Theplace.C.Theweather.D.Thetransportation.4. Whatmightbethemostsuitabletitleforthetext?A. CIimateChangeInfluencesanAmericanVillageAlaskaVillageRelocatesDuetoClimateChangeB. AVillageIsGoingtoMoveAllItsV

42、illagersRisingSeaWaterFloodsAwayaSmallVillageCThedaywillcomewhenrenewableenergysuchaswind,solar;geothermalandothersreplacefossilfuelsasthemajorsourceofworldenergy.Howevecmostanalystsinsistthatthisdaywillnotarriveformanyyearstocomecertainlywellpastthemiddleofthecentury.Systemsoffossilfuelshavealready

43、beenfirmlysetup,anditistoocostlyorimpracticaltoreplacetheexistingsystemswithrenewables.Buttherearegoodreasonstobelievethatthetransition（轉變）torenewableswillcomemuchfasterthanpreviouslythought.Itishardlysurprisingthatmanyexpertssaywewillseearelativelyslowtransitionfromfossilfuelstorenewables,givenwhat

44、isknownaboutpreviousenergychangesofthissort.Energytransitionstakealongtime,observedVaclavSmiloftheUniversityofManitobainScientificAmerican.Ittookmorethan50yearsforcoaltoreplacewoodastheworldsleadingsourceofenergyandanother50yearsforoiltoreplacecoal;thechangefromfossilfuelstorenewables,heargued,isnot

45、likelytocomeanyfaster.Underordinarycircumstances,Smilsforecastwouldnodoubtproveaccurate.Butthesearenotordinarytimes.GrowingconcernoverclimatechangeisleadingtoincreasinglystrictcontrolsonCO2andothergreenhousegas(GHG)emissions(排放)，whilethedevelopmentinrenewablestechnologyisloweringtheirpriceandspeedin

46、gtheirinstallation.Thereare,ofcourse,manydifficultiesintheeffectivecontrolofcarbonemissions,asdemonstratedbycoalcompaniestoblocktheintroductionofnewrulesbytheUSEnvironmentalProtectionAgency.Nevertheless,itisimpossibletodismisstheprogressbeingmadeatthelocalandinternationallevelstopromotetheuseofrenew

47、ables.TheEuropeanUnion(EU),forexample,iswellonthewaytoachievinga20%reductioninGHGemissionsfrom1990levelsby2020,alongwitha20%increaseintheuseofrenewableenergy.Thetransitiontorenewableswillbefasterduetodramaticimprovementsinthepricingandperformanceofsuchsystems.Asaresultofthesteadyincreasesintheeffici

48、encyofwindandsolarsystems,togetherwiththesavingsachievedthroughlarge-scalemanufacture,thepriceofrenewablesisfallingglobally.Withpricesdroppingthisfast,solarenergyisnowprovingcompetitivewithfossilfuelsforgeneratingelectricityinmanyareas.Thechangefromfossilfuelstorenewableenergywillnotcomeovernight,an

49、ditwillnotescapemanysetbacks.Nevertheless,renewablesarelikelytoreplacefossilfuelsasthemainsourceofelectricalpowerwellbeforemid-century.1.VaclavSmilbelievesthat.A. renewableenergiesarenotverypracticalthechangetorenewableswillcomeslowlyB. systemsoffossilfuelshavebeenfirmlysetuptherearemanysetbacksofre

50、newableenergies2. WecanlearnfromthepassagethatEuropeanUnion.A. hascutdownhalfofthecarbonemissionshasfailedtofindawaytoreduceGHGemissionsB. istryingtheirbesttoencouragetheuseofrenewablestriestostoptheintroductionofnewrulesonrenewables3. Therenewablesaremorecompetitivebecauseof.A. theirfallingpricesB.

51、thedeclineincoalindustryC.internationaltradeD.thenewrulesonCO2emission4. Theauthorwritesthispassageinorderto.A. callonpeopletouselessfossilfuelsgiveadviceonhowtopromoterenewablesB. arguethattheenergytransitionwillcomesoonerprovetherenewableswillbethemajorsourceofenergyDBytheendofthecentury,ifnotsoon

52、er,theworldsoceanswillbebluerandgreenerthankstoawarmingclimate,accordingtoanewstudy.Attheheartofthephenomenonlietinymarinemicroorganisms（海洋微生物）calledphytoplankton.Becauseofthewaylightreflectsofftheorganisms,thesephytoplanktoncreatecolourfulpatternsattheoceansurface.Oceancolourvariesfromgreentoblue,d

53、ependingonthetypeandconcentrationofphytoplankton.Climatechangewillfuelthegrowthofphytoplanktoninsomeareas,whilereducingitinotherspots,leadingtochangesintheoceansappearance.Phytoplanktonliveattheoceansurface,wheretheypullcarbondioxide（二氧化碳）intotheoceanwhilegivingoffoxygen.Whentheseorganismsdie,theybu

54、rycarboninthedeepocean,animportantprocessthathelpstoregulatetheglobalclimate.Butphytoplanktonarevulnerabletotheoceanswarmingtrend.Warmingchangeskeycharacteristicsoftheoceanandcanaffectphytoplanktongrowth,sincetheyneednotonlysunlightandcarbondioxidetogrow,butalsonutrients.StephanieDutkiewicz,ascienti

55、stinMITsCenterforGlobalChangeScience,builtaclimatemodelthatprojectschangestotheoceansthroughoutthecentury.Inaworldthatwarmsupby3C,itfoundthatmultiplechangestothecolouroftheoceanswouldoccur.Themodelprojectsthatcurrentlyblueareaswithlittlephytoplanktoncouldbecomeevenbluer.Butinsomewaters,suchasthoseof

56、theArctic,awarmingwillmakeconditionsriperforphytoplankton,andtheseareaswillturngreener.Notonlyarethequantitiesofphytoplanktonintheoceanchanging,shesaid,butthetypeofphytoplanktonischanging.Andwhydoesthatmatter?Phytoplanktonarethebaseofthefoodweb.Ifcertainkindsbegintodisappearfromtheocean,Dutkiewiczsa

57、id,itwillchangethetypeoffishthatwillbeabletosurvive.Thosekindsofchangescouldaffectthefoodchain.Whatevercolourchangestheoceanexperiencesinthecoiningdecadeswillprobablybetoogradualandunnoticeable,buttheycouldmeansignificantchanges.Itllbeawhilebeforewecanstatisticallyshowthatthechangesarehappeningbecau

58、seofclimatechange,Dutkiewiczsaid,butthechangeinthecolouroftheoceanwillbeoneoftheearlywarningsignalsthatwereallyhavechangedourplanet.Whatarethefirsttwoparagraphsmainlyabout?A. Thevariouspatternsattheoceansurface.B. Thecauseofthechangesinoceancolour.persquaremile,itsafavouritewithbothlocalsandtourists.1. WhatdoweknowaboutBarcelonasBicyclingProgram?A. IthasdriventhedevelopmentofSpainsbikesharing.B. lthasoncebeenruinedbyfireaccidents.C. ltispopular