高二下学期期末考前测试英语试题.docx

高二下学期期末考前测试英语试题.docx

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高二下学期期末考前测试英语试题

高二期末考前测试英语试卷

第二部分：

阅读理解（共两节，满分40分）

第一节：

（共10小题；每小题2.5分，满分25分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

A

Plastic-EatingWorms

Humansproducemorethan300milliontonsofplasticeveryyear.Almosthalfofthatwindsupinlandfills（垃圾填埋场），andupto12milliontonspollutetheoceans.Sofarthereisnoeffectiveway

togetridofit,butanewstudysuggestsananswermaylieinthestomachsofsomehungryworms.

ResearchersinSpainandEnglandrecentlyfoundthatthewormsofthegreaterwaxmothcanbreakdownpolyethylene,whichaccountsfor40%ofplastics.Theteamleft100waxwormsonacommercialpolyethyleneshoppingbagfor12hours,andthewormsconsumedandbrokedownabout92milligrams,oralmost3%ofit.Toconfirmthattheworms’chewingalonewasnotresponsibleforthepolyethylenebreakdown,theresearchersmadesomewormsintopaste（糊状物）andappliedittoplasticfilms.14hourslaterthefilmshadlost13%oftheirmass--apparentlybrokendownbyenzymes（酶）fromtheworms’stomachs.TheirfindingswerepublishedinCurrentBiologyin2017.

FedericaBertocchini,co-authorofthestudy,saystheworms’abilitytobreakdowntheireverydayfood--beeswax--alsoallowsthemtobreakdownplastic."Waxisacomplexmixture,butthebasicbondinpolyethylene,thecarbon-carbonbond,isthereaswell,"sheexplains."Thewaxwormevolvedamethodorsystemtobreakthisbond."

JenniferDebruyn,amicrobiologistattheUniversityofTennessee,whowasnotinvolvedinthestudy,saysitisnotsurprisingthatsuchwormscanbreakdownpolyethylene.Butcomparedwithpreviousstudies,shefindsthespeedofbreakingdowninthisoneexciting.Thenextstep,DeBruynsays,willbetoidentifythecauseofthebreakdown.Isitanenzymeproducedby

thewormitselforbyitsgutmicrobes（肠道微生物）？

Bertocchiniagreesandhopesherteam

’sfindingsmightonedayhelpemploytheenzymetobreakdownplasticsinlandfills.Butsheexpectsusingthechemicalinsomekindofindustrialprocess-notsimply"millionsofwormsthrownontopoftheplastic.”

21.Whatcanwelearnaboutthewormsinthestudy？

A.Theytakeplasticsastheireverydayfood.

B.Theyarenewlyevolvedcreatures.

C.Theycanconsumeplastics.

D.Theywindupinlandfills.

22.AccordingtoJenniferDeBruyn,thenextstepofthestudyisto____.

A.identifyothermeansofthebreakdown

B.findoutthesourceoftheenzyme

C.confirmtheresearchfindings

D.increasethebreakdownspeed

23.Itcanbeinferredfromthelastparagraphthatthechemicalmight.

A.helptoraiseworms

B.helpmakeplasticbags

C.beusedtocleantheoceans

D.beproducedinfactoriesinfuture

24.Whatisthemainpurposeofthepassage？

A.Toexplainastudymethodonworms.

B.Tointroducethedietofaspecialworm.

C.Topresentawaytobreakdownplastics.

D.Toproposenewmeanstokeepeco-balance.

B

WhilefamousforeignarchitectsareinvitedtoleadthedesignsoflandmarkbuildingsinChinasuchasthenewCCTVtowerandtheNationalCenterforthePerformingArts,manyexcellentChinesearchitectsaremakinggreateffortstotakethecenterstage.

Theireffortshavebeenprovenfruitful.WangShu,a49-year-oldChinesearchitect,wonthe2012PritzkerArchitecturePrize—whichisoftenreferredtoastheNobelPrizeinarchitecture—onFebruary28.HeisthefirstChinesecitizentowinthisaward.

WangservesasheadoftheArchitectureDepartmentattheChinaAcademyofArt（CAA）.HisofficeislocatedattheXiangshancampus（校园）oftheuniversityinHangzhou,ZhejiangProvince.Manybuildingsonthecampusarehisoriginalcreations.

ThestyleofthecampusisquitedifferentfromthatofmostChineseuniversities.Manyvisitorswereamazedbythecomplexarchitecturalspaceandabundantbuildingtypes.Thecurves（曲线）ofthebuildingsperfectlymatchtheriseandfallofhills,formingauniqueview.

Wangcollectedmorethan7millionabandonedbricksofdifferentages.Heaskedtheworkerstousetraditionaltechniquestomakethebricksintowalls,roofsandcorridors.ThiscreationattractedalotofattentionthankstoitsmixtureofmodernandtraditionalChineseelements（元素）.

Wang’sworksshowadeepunderstandingofmodernarchitectureandagoodknowledgeoftraditions.Throughsuchabalance,hehadcreatedanewtypeofChinesearchitecture,saidTadaoAndo,thewinnerofthe1995PritzkerPrize.

Wangbelievestraditionsshouldnotbesealedinglassboxesatmuseums."Thatisonlyevidencethattraditionsonceexisted,"hesaid.

"ManyChinesepeoplehaveamisunderstandingoftraditions.Theythinktraditionmeansoldthingsfromthepast.Infact,traditionalsoreferstothethingsthathavebeendevelopingandthatarestillbeingcreated,"hesaid.

"Today,manyChinesepeoplearelearningWesternstylesandtheoriesratherthanfocusingonChinesetraditions.Manypeopletendtotalkabouttraditionswithoutknowingwhattheyreallyare,"saidWang.

Thestudyoftraditionsshouldbecombinedwithpractice.Otherwise,therecreationoftraditionswouldbeartificialandempty,hesaid.

25.Wang’swinningoftheprizemeansthatChinesearchitectsare___________.

A.followingthelatestworldtrend

B.gettinginternationalrecognition

C.workingharderthaneverbefore

D.relyingonforeignarchitects

26.WhatmadeWang’sarchitecturaldesignasuccess？

A.Themixtureofd

ifferentshapes.

B.ThebalanceofEastandWest.

C.Theuseofpopulartechniques.

D.Theharmonyofoldandnew.

27.WhatshouldwedoaboutChinesetraditionsaccordingtoWang？

A.Spreadthemtotheworld.

B.Preservethematmuseums.

C.Teachtheminuniversities.

D.Recreatetheminpractice.

C

Languageshavebeencomingandgo

ingforthousandsofyears,butinrecenttimestherehasbeenlesscomingandalotmoregoing.Whentheworldwasstillpopulatedbyhunter-gatherers,small,tightlyknit（联系）groupsdevelopedtheirownpatternsofspeechindependentofeachother.Somelanguageexpertsbelievethat10,000yearsago,whentheworldhadjustfivetotenmillionpeople,theyspokeperhaps12,000languagesbetweenthem.

Soonafterwards,manyofthosepeoplestartedsettlingdowntobecomefarmers,andtheirlanguagestoobecamemoresettledandfewerinnumber.Inrecentcenturies,trade,industrialisation,thedevelopmentofthenation-stateandthespreadofuniversalcompulsoryeducation,especiallyglobalisationandbettercommunicationsinthepastfewdecades,allhavecausedmanylanguagestodisappear,anddominantlanguagessuchasEnglish,SpanishandChineseareincreasinglytakingover.

Atpresent,theworl

dhasabout6,800languages.Thedistributionoftheselanguagesishugelyuneven.Thegeneralruleisthatmildzoneshaverelativelyfewlanguages,oftenspokenbymanypeople,whilehot,wetzoneshavelots,oftenspokenbysmallnumbers.Europehasonlyaround200languages;theAmericasabout1,000;Africa2,400;andAsiaandthePacificperhaps3,200,ofwhichPapuaNewGuineaal

oneaccountsforwellover800.Themediannumber（中位数）ofspeakersismere6,000,whichmeansthathalftheworld'slanguagesarespokenbyfewerpeoplethanthat.

Alreadywellover400ofthetotalof6,800languagesareclosetoextinction（消亡）,withonlyafewelderlyspeakersleft.Pick,atrandom,BusuuinCameroon（eightremainingspeakers）,ChiapanecoinMexico（150）,LipanApacheintheUnitedStates（twoorthree）orWadjiguinAustralia（one,withaquestion-mark）:

noneoftheseseemstohavemuchchanceofsurvival.

28.Whatcanweinferaboutlanguagesinhunter-gatherertimes?

A.Theydevelopedveryfast.

B.Theywerelargeinnumber.

C.Theyhadsimilar

patterns.

D.Theywerecloselyconnected.

29.Whichofthefollowingbestexplains"dominant"underlinedinparagraph2？

A.complex.B.advanced.C.powerful.D.modern.

30.Whatisthemainideaofthetext？

A.Newlanguageswillbecreated.

B.People'slifestylesarereflectedinlanguages.

C.Humandevelopmentresultsinfewerlanguages.

D.Geographydetermineslanguageevolution.

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

选项中有两项为多余选项。

Everyanimalsleeps,butthereasonforthishasremainedfoggy.Whenlabratsarenotallowedtosleep,theydiewithinamonth.31

Oneideaisthatsleeph

elpsusstrengthennewmemories.32Weknowthat,whileawake,freshmemoriesarerecordedbyreinforcing（加强）connectionsbetweenbraincells,butthememoryprocessesthattakeplacewhilewesleephavebeenunclear.

Supportisgrowingforatheorythatsleepevolvedsothatconnectionsbetweenneurons（神经元）inthebraincanbeweakenedovernight,makingroomforfreshmemoriestoformthenextday.33

Nowwehavethemostdirectevidenceyetthatheisright.34.Thesynapsesinthemicetakenattheendofaperiodofsleepwere18percentsmallerthanthosetakenbeforesleep,showingthattheconnectionsbetweenneuronsweakenwhilesleeping.

IfTononi’stheoryisright,itwouldexplainwhy,whenwemissanight`ssleep,wefinditharderthenextdaytoconcentrateandlearnnewinformation—ourbrainsmayhavesmallerroomfornewexperiences.

Theirresearchalsosuggestshowwemaybuildlastingmemoriesovertimeeventhoughthesynapsesbecomethinner.Theteamdiscoveredthatsomesynapsesseemtobeprotectedandstayedthesamesize.35“Youkeepwhatmatters,”Tononisays.

A.Weshouldalsotrytosleepwellthenightbefore.

B.It’sasifthebrainispreservingitsmostimportantmemories.

C.Similarly,whenpeoplegoforafewdayswithoutsleeping,theygetsick.

D.Theprocessestakeplacetostopourbrainsbecomingloadedwithmemories.

E.That’swhystudentsdobetterintestsiftheygetachancetosleepafterlearning.

F