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河北省衡水市第十三中学2019-2020学年高一英语下学期调研考试试(满分150分.用时120分钟)第一部分听力(共两节,满分30分)第一节(共5小题;每小题L5分,满分
7.5分)听下面5段对话每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题每段对话仅读一遍
1.WhatwillthemandonextWhatissmallforthewomanA.TheT-shirt.B.TheWhatdoesthemanmeanA.Thefilmisterrible.B.Thefilmcanbeseenonline.C.Thefilmisworththemoney.WheredoestheconversationmostprobablytakeplaceA.Athome.B.Atahospital.C.Atadrugstore.第二节(共15小题;每小题
1.5分,满
22.5分)听下面5段对话或独白每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间每段对话或独白读两遍听第六段材料,回答第6至7题Whatdoesthemanlikeabouthishometownnotexpensivetolivethere.energy-consumingappliancesinyourhome.Usingelectricalfansinsteadofyourairconditionerismuchmoreefficientanditsabigmoneysavertoo.38Onthosedayswhenyoutreatalargecrowdandarelowontimedontheatyourselfupifyouhavetousedisposable(——次性的)dishware.Thismethodreducesyourwaterusageandsavesenergy.Andasabonusifyourcityoffersroadsiderecyclingyourpaperplatesmayqualify.Updateyourinsulation(隔热)Allthatworkyouredoingtosaveenergyinyourhomecouldgotowasteifitsnotproperlyinsulated.Ifyoucantinsulatethewholehousepayspecialattentiontotheroof itreducesairflowfromoutside.Byupdatingyourinsulationyouresavingmoney.39TakeshowersinsteadofbathsAfullbathtubrequiresabout70gallonsofwater.40Showersarequitedifferent一takingafive-minuteshowerusesonly10to25gallons!ButdoyoureallyhavetoYoushoulduseyourairconditionersmartly.Turnoffwaterwhennotusingit.Plusyouneedntchangethemfrequently.Dontfeelguiltyaboutusingpaperplates.Anditsalsoeasiertocontrolyourhometemperature.Evenifyoudontfillittothetopitstillusesmuchmorewater.完型填空(每小题1分,满分15分)ScottPooreisananimallover.Hemovesintotheshelterkennel(犬舍)withthe41ofhelpingunwantedyoungdogsgetadopted.Queena3-year-olddoghasjustgottenthemost42roommatedespitethenarrowlivingroom.SincePooreisa43visitorattheshelterheisfamiliarwithallofthe
44.HoweverlittleQueeninparticularhasreally45hisheart.PooresaysthatherecentlybegantonoticethatQueenseemedtobe“losing46infindingaforeverhome.’IhavebeenvisitingQueeneverysingledayforoverayearnowandIcan£7seehergivingup.Sheusedtogetso48whenIwouldarriveandnowshejustliesinherbed.”SotoraiseawarenessofQueenssituationPoore49asuitcaseandmovedintothedogskennel.Pooresaysithasbeen50managinghisworkwhilealsolivingattheshelterbutheis51tostayinthekenneluntilsomeoneadoptsQueen.Sincehe52thekennelearlierthisweekheandhisnewcanineroommatehavebeen53theheadlinesofdozensofnationalnewsoutletsalthoughnopotential54havesteppedforward.DelightfullythisdoghasfinallybeengivenalovinghomeafterD.discussingD.donators第H卷阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式每空1分满分10分Thechildwaslastseen(漫游)inthestreetwithabagonhisback.Water在)inthreeformswhichareliquidgasandsolid.A(物理学家)isapersonwhodoesresearchconnectedwithphysicsorwhostudiesphysics.Thepresident(证实)thathewouldvisitFrenchthefollowingmonth.Atpresentthelocalgovernmentistakingimportant(措施)tosavepandas.Themoretimeyouspendwithhorses(观察)theirbehaviorthemoreeffectivelyyouwillbeabletojudgetheirmoods.Hessocaringand(考虑周至U的)andhemakesmefeellikeIdon,tdeservehimNooneistoseethedocumentwithoutthe(许可)ofthewriterofthereport.Childrenshow(好奇心)abouteverything.IamjustdoingwhatIcanin(支持)ofthem.语法填空(每空1分,满分10分)Roofsandwindowsofbuildingsarenttheonlysurfacesthatcanbeusedtoproducesolarpower.InChinaworkhasbegunonthe66constructofthecountrysfirstsolarhighwayinwhichsolarpanelsareplacedunderneathtransparentconcrete.Thesolarhighwayisa2kmstretch一段ofroad67lieontheJinanCityExpresswayanditsdividedintothreelayers.Thesee-throughconcreteprotectsasetofsolarpanelsoftwo68size.Beneaththesolarpanels69bealayerthatseparatesthemfromthedampground.Theroad70ithasalreadybeencompletedandnowitsonlyamatterofconnectingthegrid输电网71isexpectedtobefinishedbytheendoftheyearalongsidethecompletionoftheJinanExpressway,ssouthsection.ThisisntthefirstsolarroadChinahasworkedon.EarlierthisyeartheQiluTransportationDevelopmentGroupalsohandlingtheJinanExpresswaysolarroad72builda160-meter-longsolarroadin73cityofJinan.Ithastheabilitytoheatuptokeepthehighwayclear74snowandiceandisableto75wirelesschargeelectricvehicles.Thenewsolarhighwayisexpectedtoonedaybeequippedwiththesamefeatures.写作
一、应用文15分假设你是你所在地区的野生动物园的义务宣传员李康,为了提醒外国游客爱护动物和确保游览安全,请你写一篇100词左右的注意事项贴在动物园告示牌上内容需要包括
1.保护野生动物的原因
2.游览须知
3.祝福和希望LadiesandGentlemenStudentUnion
二、作文续写(20分)阅读下面短文,根据所给情节进行续写,使之构成一个完整的故事Whenatornado(龙卷风)toucheddowninasmalltownnearbymanyfamilieswereleftcompletelyruined.OneSundayaparticularpictureespeciallytouchedme.Ayoungwomanstoodinfrontofanentirelyruinedhome.Ayoungboysevenoreightyearsoldstoodathersideeyesdowncast.Clutching(紧握)atherskirtwasatinygirlwhostaredintothecameraeyeswidewithconfusionandfear.Thearticlethatwentwiththepicturegavetheclothingsizesofeachfamilymember.WithgrowinginterestInoticedthattheirsizescloselymatchedours.Thiswouldbeagoodopportunitytoteachmychildrentohelpthoselessfortunate(幸运的)thanthemselves.Itapedthepictureoftheyoungfamilytoourrefrigeratorexplainingtheirdifficultytomyseven-year-oldtwinsBradandBrettandtothree-year-oldMeghan.“Thesepoorpeoplenowhavenothing“Isaid.We11sharewhatwehavewiththem.”Ibroughtthreelargeboxesandplacedthemonthelivingroomfloorencouragingtheboystogothroughtheirtoysanddonate(捐赠)someoftheirlessfavoritethings.MeghanwatchedseriouslyastheboysandIfilledoneoftheboxeswithcannedgoodsandfoodsthattheynolongerneeded.MeghanwalkedupwithLucyhermuch-loveddollhuggedtightlytoherchest.Shestoppedinfrontoftheboxgaveherdollafinalkissthenlaidhergentlyontopoftheothertoys.“OhHoneyIsaid.YoudonthavetogiveLucy.Youlovehersomuch.”Meghannoddedseriously“LucymakesmehappyMommy.Maybeshe11makethatotherlittlegirlhappytoo.”注意.所续写短文的词数应为150左右;.应使用5个以上短文中标有下划线的关键词语;.续写部分分为了两段,每段的开头语已为你写好;.续写完成后,请用下划线标出你所使用的关键词语Paragraph1:Theboyshadwatchedopen-mouthedwhentheirsister...Paragraph2:Ilookedmychildrenforalongmoment.2019-2020学年第二学期19级调研考试英语试题答案听力答案
1.A
2.B
3.C
4.A
5.C
6.B
7.A
8.A
9.C
10.CB
12.C
13.A
14.C
15.A
16.B
17.C
18.B
19.B
20.A听力原文现在是听力试音时间M:Hello.InternationalFriendsClub.CanIhelpyouW:Ohhello.IreadaboutyourclubinthepapertodayandIthoughtIdphonetofindoutabitmore.M:Yescertainlywellwereasortofsocialclubforpeoplefromdifferentcountries.Itsquiteanewclub一wehaveabout50membersatthemomentbutweregrowingallthetime.W:Thatsoundsinteresting.试音到此结束听力考试正式开始第一节Text1W:CouldyouturntheTVdownImtryingtostudyandthenoiseisbotheringme.M:Imsorry.I11watchthismovielater.Text2W:WhenVm65IwillgetSocialSecuritypaymentsfromthegovernment.M:Thatmeansyouhavetwentyyearstogoandthenyoucanquityourjob.Text3W:TheT-shirtfromGrandmalooksniceonme.Buttheskirtshegavemeisntbigenough.M:WhataboutthehatGrandmagaveyouW:ItsquitelargebutIlikeit.Text4W:HowdidyoulikethefilmM:WellIwalkedoutafterhalfanhour.Iveneverseensuchbadacting.IthinkImgoingtoreadfilmreviewsonlinebeforegoingtothecinemanexttimesoIwontwastemymoney.Text5M:ExcusemeImlookingforsomethingforastomachache.W:Iseesir.HowlonghaveyouhadthisproblemM:Forafewdays.W:Youcouldtrythismedicine.Itmayhelp.ButIthinkyoushouldseeadoctor.第一节到此结束第二节Text6W:WhereinCanadaareyoufromKenM:ImfromToronto.W:OhIveneverbeenthere.WhatsitlikeM:Itsabigcitybutitsnottoobig.Thenightlifeiscolorful.Ienjoyit.W:IsitexpensivethereM:Yeahalittlebit.W:AndwhatstheweatherlikeinTorontoM:Wellitsprettycoldinthewinterandveryhotandwetinthesummer.Itsniceinthespringandfallthough.Youcanalwaysseetheclearskythen.听下面一段对话,回答第8和第9两个小题现在,你有10秒钟的时间阅读这两个小题Text7M:SophiaIvejustconfirmedourflightonlineanditlookslikewe11bedelayedbyanhour.Theflightisnowscheduledtoleaveat4:00duetotheheavywind.W:Thenwereintrouble.WewontbeabletogettoChicagoby6:00forthedinnerwithMr.ONeil.M:Dontworry.I11talktohim.Imgoingtocallhimtospeakaboutourreport.W:Dontforgettoapologizetohimaboutbeinglate.听下面一段对话,回答第10至第12三个小题现在,你有15秒钟的时间阅读这三个小题Text8W:AreyoustayingbyyourselfagainthissummervacationM:NoImnot.Mybrotherandsisterarestayingwithmerightnow.W:ReallyWhataretheydoingthissummerM:Wellmybrotherisonvacationnow.Healwayswantstocomeandvisitthecity.W:WhataboutyoursisterM:Shehasapart-timejobattheuniversity.W:AnddoyouhaveanythingspecialtodoM:Nothingspecial.Iworkasawaiterinthemorning.AndintheafternoonIreadbooksboughtfromabookstoredaysago.WhataboutyouJuneAreyouinschoolthissummerW:YesIam.M:OhareyoutakingFrenchandSpanishagainW:WellImnottakingthembutImstartingJapanese.M:ReallyThatsexciting.听下面一段对话,回答第13至第16四个小题现在,你有20秒钟的时间阅读这四个小题Text9M:MyhistoryprofessorsaysIshouldthinkaboutajobinpolitics.ButIdontthinkIdmakeagoodpolitician.W:WhynotM:Youknowme.Imnotgoodatdealingwithpeople.Andpoliticianshavetoworkwithpeopleallthetime.W:Thatstrue.SowhatdoyouthinkyouwanttodoM:IthinkIwillbeagoodartist.Ilovepaintingpictures.W:ThatremindsmeofaproblemImhaving.YouknowmyparentshavearestaurantrightTheywantmetobethemanager.M:AndyouwanttoW:Noway.Arestaurantmanagerhastomanageotherpeople.Itdbeterrible.Imtoodisorganized.HonestlyIwanttobeateacherbecauseIlikeworkingwithkidsandImgoodatit.M:Thatstrue.听下面一段独白,回答第17至第20四个小题现在,你有20秒钟的时间阅读这四个小题Text10W:Goodmorningeveryone.TodayweregoingtolookatthewidedifferencesinfamilylifebetweentherichandthepoorinVictoriantimes.Letsbeginwiththeupperclasses.InVictoriantimestheupperclassesmadeuplessthan3%ofthepopulationyetheldmorethan90%ofthecountryswealth.Mostoftheirservantswereverypoorlypaidbutwerealwayslivinginthehomesofupper-classVictorianfamiliessotheydidnthavetopayforhousingfoodandclothing.Themoneywhichtheydidearntheysenttotheirfamilies.Manyservantscamefromthecountryside.Amongthemwerecookscleanersgardenersandsoon.Thefamilywouldalsoemployachildsnursewhosemainrolewastocareforthechildren.Shewasresponsibleforteachingthechildrenhowtobehaveandtakingcareofthemwhentheywereill.Nursesdidnothowevereducatethechildren.Generallychildrenfromwealthyfamiliesdidntattendschooloutsidethefamilyhome.Tutorswouldcometothehousetodothis.NowtheVictorianupperclasseshavethereputationofbeingquitecruel;butthiswasntalwaysthecase.Theywerealsoquitegenerous.Someschoolsweresetupwithmoneyfromtheupperclassessothatpoorchildrencouldhavesomeformofeducation.AdditionallymostVictorianparentswereveryproudoftheirchildren.Thisgoesagainstthecommonideathatparentswereverystrictwiththeirchildren.Infacttheoppositewasgenerallytherule.Howeverthesituationforlowerclassfamilieswasverydifferent.Letshavealook.阅读21-23DBA24-27DACB28-31DBCB32-35ACDC36-40DAEFG完型:
41.C;
42.A;
43.D;
44.B;
45.C;
46.A;
47.A;
48.C;
49.B;
50.D;51A;
52.C;
53.A;
54.C;
55.B单拼:
56.wandering
57.exists
58.physicist
59.confirmed
60.measures
61.observing
62.considerate
63.permission
64.curiosity
65.support语法填空construction;lying;sizes;is;itself;which;built;the;of;wirelessly【范文】LadiesandGentlemenWelcometoourwildlifepark.Wildanimalsareourfriendswithoutwhomwecantliveontheearthalone.Thereforetoprotectourfriendsandguaranteeyoursafetypleasedoasfollows:Firstlynevergetclosetotheanimalsespeciallydangerousonesliketigerslionsandelephants.Notonlyareyouforbiddentothrowanythingattheanimalsorfeedthembutalsoyouarentallowedtotakephotoswiththemincaseyouwillbeattacked.Meanwhileyoudbetternotplaygameswithanimalstrainedbynon-professionals.Finallynolitteringsignscanbeseenaroundtheparksopleaseobeythem.Iwishyouhaveagoodtimehere.【写作指导】onepossibleversion
7.Whatistheweatherlikeinthefallinthemanshometown听第七段材料,回答第8至9题WhattimewastheplaneoriginallyscheduledtoleaveWhyisthewomanworriedThereportisnotfinished.Anappointmentwillbedelayed.听第八段材料,回答第10至12题Whydoesthemansbrothergotothemansplace听第九段材料,回答第13至16题WhatarethespeakersmainlytalkingaboutA.Whatjobtodointhefuture.B.Whichprofessortofollow.C.topossess.WhatsubjectdoesthemanprobablypreferWhatdothewomansparentsexpecthertobeWhatisthewomangoodatdoing听第十段材料,回答第17至20题HowdidtheservantsdealwiththeirearningsinVictoriantimesTheboyshadwatchedopen-mouthedwhentheirsisterplacedherfavoritedollinthebox.Withoutawordtheboysroseandwenttotheirroomsandcamebackcarryingtheirfavoritetoystothelivingroom.AstonishedIrealizedthattheboyshadalsorecognizedwhatlittleMeghansactionmeant.Ithinkallofthemwanttomakethesepoorpeoplewhohavenothinghappylikethem.SwallowingbacktearsIpulledallthreeofthemintomyarms.Ilookedmychildrenforalongmoment.Iremovedmyoldjacketfromtheboxofclothestoo.IreplaceditwiththenewhuntergreenjacketthatIhadfoundonsalelastweek.IhopedtheyoungwomaninthepicturewouldloveitasmuchasIdid.WhatMeghandidtaughtmealessonthatthetruespiritofdonatingistogivewithyourheart.Theypaidforthehousing.Theyboughtfoodandclothes.Theysentthemtotheirfamilies.WhatwasanursesmaindutyA.Cookingmeals.B.Lookingafterchildren.C.Educatingchildren.HowdidtheVictorianupperclassparentstreattheirchildrenactuallyA.Cruelly.B.Kindly.C.Strictly.WhatwillthespeakertalkaboutnextLowerclassfamilies.Upperclasschildrenssituation.Comparisonsbetweenupperandlowerclasses.第二部分阅读理解共两节,每小题
2.5分,满分50分AUpcomingMusicfestivalsandconcertsinBostonin2019NewBedfordFolkFestival2019The24thAnnualNewBedfordFolkFestivalwillfeaturethebestincontemporarytraditionalandCelticfolkmusic.Called“oneofthemostexcitingandsmartlyprogrammedfestivalsintheNortheastnand“NewEnglandsmostenjoyablefolkfestivalvNewBedfordFolkFestivalisanaffordabledestinationforfamiliesseekingafun-filledweekend.•Location:WaterfrontNewBedfordMA•Phone:617999-5231•Dates:SaturdayJuly62019-SundayJuly72019•Hours:SaturdayandSundayJuly7and8from11:00AM.to7:00PM.•In/Outdoor:Outdoor•Cost:S289perfamilylimit4membersperfamily;$59perticketformorethan4BostonCallingMusicFestival2019BostonCallingMusicFestivalisathree-daytwo-stagefestivalfeaturingsomeofthebiggestandbestactsinlivemusic!ThemusicalcelebrationtakesplaceattheHarvardSportsComplexwitheasyaccesstostagesawidevarietyoffoodservicesandmore.Allagesarewelcomeandchildrenunder10arefree.•Location:HarvardSportsComplexAllstonMA•Phone:617536-4100•Dates:FridayJuly192019-SundayJuly212019•Hours:Friday:6PM-11PMSaturday/Sunday:12AM-11PM•In/Outdoor:Outdoor•Cost:$98perperson;childrenunder10freeLevitateMusicArtsFestival2019JoinusforadayofmusicartfoodandtheoutdoorsattheMarshfieldFairgrounds!Therewillbelotsofmusicartscraftsanddeliciousfoodtruckstoenjoy!•Location:140MainStreetMarshfieldMA02050•Phone:617635-4505•Dates:FridayJuly122019-SundayJuly142019•Hours:12:00AM-8:00PM•In/Outdoor:Outdoor•Cost:3DayTickets-$109advanceGA$269advanceVIP.Kidsunder12FreeJazzintheParkSummerConcertSeries
2019.NempacPresentsJazzintheParkSummerConcertSeries2019everyTuesdayfromJuly23thtoJuly30that6:00prn-7:30pm.Comeandenjoywithus!•Location:Parcel10BostonMA02113map•Phone:617227-2270Dates:July23rdtoJuly30th•Hours:6:00PM-8:00PMIn/Outdoor;OutdoorCost:$50perperson;Childrenunder18free.WhichfestivalwouldyouliketogoifyouhavespecialinterestinfolkmusicJazzintheParkSummerConcertSeries
2019.BostonCallingMusicFestival
2019.LevitateMusicArtsFestival
2019.NewBedfordFolkFestival
2019.WhichnumbershouldyoudialifyouwanttolearnmoreinformationabouttheJazzconcertA.617635-4505B.617227-2270C.617999-5231D.617536-4100WhatdothefoureventshaveincommonA.Theytakeplaceoutdoors.B.Theylastforthreedays.C.TheyareforfamiliesD.Theydon,tchargechildren.BBeforemydaughterEvelynwasborn1eagerlyexpectedherfirstyearoflife.Iimaginedcelebratingeverymilestone一bondingwithherasanewbornseeinghersmileforthefirsttimehearinghersayherfirstword.Ididntthinkoffeedingtubeslonghospitalstaysoranorgantransplant移植.ForEvelynthefirstyearincludedallandmore.Evelyncameintothisworldatjust34weeksweighinglessthan3pounds.GenetictestingrevealedshehadAlagillesyndromeageneticdisorderthatcandamagetheliver肝脏,heartandotherorgans.SoonwereceivedthenewsthatbabyEvelynneededalivertransplant.OurfamilymovednearertoUPMCChildrensHospitalofPittsburghsothatwewerecloserifaliverwasavailableforEvelyn.WhenEvelynwasaddedtotheorgandonationwaitlistitwasundertheliverallocationpolicyinplaceatthattimewhichwasmap-based.Thispolicylacksanyspecialconsiderationfortransplantcandidates.Weweretolditwouldlikelytakethreemonths.Justthenanewpolicyforliverallocationwastriedout.Underthenewsystemthesickestchildpatientsgetfirstpriority优先.Thenewpolicywasonlyineffectforalittleoveraweek.ButinthatperiodEvelynreceivedherlivertransplant.Haditbeenjustoneweekearlieroelaterwewouldnothavereceivedthecall.AsEvelynrecoversfromhertransplantwearegratefulforthechange.Iamalsosadbecausethenewpolicywasshort-lived.Thatmeansanothermomlikememightnotreceivethatphonecallwithgoodnews.OtherchildrenshouldhavethesameopportunityasEvelyntolivehealthyhappylives.Whenitcomestolivertransplantpolicywecanandmustdobetterforchildren.
24.WhatprobablyhappenedtoEvelynshortlyaftershewasbornA.Shefailedtogiveasmile.B.Shesufferedfromaheartattack.C.Shesaidherfirstwordquickly.D.Shehadaseriousliverfailure.
25.WhydidtheauthorsfamilymovenearertothehospitalWemustguaranteekidshavehealthylivers.Thesickestkidsshouldgetlivertransplantsfirst.C.Kidsshouldhavechancesofalivertransplant.D.Theoldpolicylacksspecialconsiderationforkids.CI*vehadmanywonderfulholidaysbutmyfavoritememoryisthatofafewsummerweeksspentinItalywhenIwasabout
13.Mymomhadtogotoaclinictherefortreatmentandweallwenttogetherasafamilyandtooktheopportunitytohaveabeautifulvacationaswell.ItwasthefirsttimeabroadformeanditwasavacationthatbroadenedmyperspectivetaughtmealotandhelpedshapeabitofwhoIamtoday.AlthoughwedidvisitmanyfamousplacesinnorthernItalywestayedmostlyinalittletownwheresomefriendsofmyparentslived.NothinghelpedmeunderstandItalianculturebetterthanmystayinthispicturesquealmostmagicaltownthatmanyhaven,tevenheardof.ThankstotheholidayspentinItalyIquiteashallowgirlalsodiscoveredmypassionformusicwhichstayedaliveinmetothisdayandwillprobablystayforever.Myparents,friendshadasonRicardowhowasapianist.Dadhadrepeatedlybutunsuccessfullytriedtomakemestudyaninstrumentandsticktoit.HoweverwhenIheardRicardoplayIinstantlyfellinlovewithmusicandfeltagreatdesiretolearnit.RicardotaughtmethefirstsongIeverplayedonthepianoasillyplayfullittletunethatIstillknowbyheart.WetookashorttriptotheItalianAlpsatsomepoint.Ihadneverseensuchmajesticbeautybefore!Thesnowshy;coveredpeakstheintimidatingrocksthefreshharshair—whatanexperience!AndwhatIrememberimpressedmethemostwasthefactthatalthoughthiswasapopulartouristicareatheregionwasincrediblycleanstill“natural”withplacesthatseemedtoneverhavebeentouchedbyhumans.ThentheshallowteenthatIwaslearnedwhatarealtreasurenatureisandhowimportantitistoprotectit.WhatwasthemainpurposefortheauthorandherfamilytogotoItalyToexperienceandlearnfromanotherculture.Tohaveafamilyreunionwhiletravelling.Tobroadenandshapetheauthorsperspective.Tocuretheauthorsmotherofherillness.WhatcontributedtotheauthorspassionformusicA.Herfather,sinstructions.B.Ricardosperformance.C.Thepianosheplayedon.D.Thelocalmusicculture.ThetriptotheItalianAlpshelpedtheauthorlearntoPeoplehavebeenwonderingwhyelephantsdonotdevelopcancereventhoughtheyhavelifespans(寿命)thataresimilartohumanslivingforaround50to70years.Nowscientistsbelievetheyknowwhy.AteamattheUniversityofChicagoUShasfoundthatelephantscarryalargenumberofgenesthatstoptumors(肿瘤)developing.Tobeprecisetheyfound20copiesofananti-tumorgenecalledTP53inelephants.Mostotherspeciesincludinghumansonlycarryonecopy.AccordingtotheresearchtheextracopiesofthegeneimprovedtheanimalssensitivitytoDNAdamagewhichletsthecellsquicklykillthemselveswhendamagedbeforetheycangoontoformdeadlytumors“Anincreasedriskofdevelopingcancerhasstoodinthewayoftheevolutionoflargebodysizesinmanyanimals“thestudyauthorDr.VincentLynchtoldTheGuardian.Ifeverylivingcellhasthesamechanceofbecomingcancerous(癌变的),largecreatureswithalonglifespanlikewhalesandelephantsshouldhaveagreaterriskofdevelopingcancerthanhumansandmice.Butacrossspeciestheriskofcancerdoesnotshowaconnectionwithbodymass.ThisphenomenonwasfoundbyOxfordUniversityscientistRichardPetointhe1970sandlaternamedPetosparadox(悖论)”.Biologistsbelieveitresultsfromlargeranimalsusingprotectionthatmanysmalleranimalsdonot.IntheelephantscasethemakingofTP53isnatureswayofkeepingthisspeciesalive.Thestudyalsofoundthatwhenthesamegeneswerebroughttolifeinmicetheyhadthesamecancerresistanceaselephants.Thismeansresearcherscouldusethediscoverytodevelopnewtreatmentsthatcanhelpstopcancersspreadingorevendevelopinginthefirstplace.“Naturehasalreadyfiguredouthowtopreventcancer“saidJoshuaSchiffmanabiologistattheSchoolofMedicineUniversityofUtahUS.Itsuptoustolearnhowdifferentanimalsdealwiththeproblemsothatwecanusethosestrategiestopreventcancerinpeople.”.WhyareelephantsunlikelytodevelopcancerTheycarrymanygenestopreventtumorsdeveloping.TheirgenessuffernoDNAdamage.Certaingenesintheirbodykillexistingtumors.Theyhavearatherlargebodysize..AccordingtothepassagewhathasbeenariskintheevolutionoflargeanimalsA.Cellskillingthemselves.D.SensitivitytoDNAdamage..Whatdoestheunderlinedpart“ThisphenomenonninParagraph5probablyrefertoLargeranimalshaveprotectionfromTP
53.Thelargeranimalsarethebiggerriskofcancertheywillhave.Largeranimalssufferthesameriskofcancerassmallerones.Theriskofcancerisnotrelatedtobodysize..WhatcanbeconcludedfromthepassageDependingonnatureissurelyenoughtofightagainstcancer.TheTP53geneshaveprovedusefulinstoppingcancerinpeople.HumansareexpectedtopreventcancerwiththemakingofTP
53.Theextracopiesofelephantsgenesareusedtocurecancerpatients.阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项选项中有两项为多余选项Itsnotalwayseasytorunanenergy-efficienthouse.Buttherearesomesimplethingsanyonecando.GoLEDwithyourlighting.Thereareseveralbenefitstoswitchingtoenergy-efficientlightbulbs.Oneofthemissavingmoney一thoughtheLEDbulbsmightcostmorethantraditionalbulbstheaveragesavingonLEDbulbsis$75ayear.36LEDbulbscanlastyearsorevendecades.DontrunyourairconditionerconstantlyAstheweatherstartstowarmyoumightbethinkingabouttherighttimetoturnonyourairconditioner.37Airconditionerunitsareamongthemost。