高三周考英语试题 缺答案.docx

高三周考英语试题 缺答案.docx

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高三周考英语试题缺答案

2019-2020年高三11月周考英语试题缺答案

（时间120分钟，满分150）xx.11

第Ⅰ卷（共70分）

Ⅱ.Grammarandvocabulary（20%）

SectionA

Directions:

Afterreadingthepassagesbelow,fillintheblankstomakethepassagescoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.

Inmostindustrializedcountriesabout105boysarebornforevery100girls,foraratioof1.05,knownasthesecondarysexratio,orSSR;theprimarysexratioistheratioatconception.Thisisoftenexpressedasthepercentageofboysamongallbirths,orabout51.2percent.Thepercentageofmalesamongallbirthsisnotfixed,however.Sincethe1950sand1960stheoverallSSR25（decline）intheU.S.,CanadaandseveralEuropeancountries,therearealsobothpersonalandenvironmentalfactorsthataffecttheaveragesexratio.

26chanceofhavingaboyappears27（decline）withthemother'sage,thefather'sageandthenumberofchildrenthefamilyalreadyhas.Theseeffectsaresmall.OnestudyinDenmarkfoundthattheSSRofchildrenborntofathersyoungerthan25was51.6percent,whichdecreased2851.0percentamongchildrenoffathersatleast40yearsofage.ThereforeitisunlikelythatthedecliningSSRinmanycountriesresultssolelyfromlarge-scalechangesinsuchpersonalfactors.

Withregardtoenvironmentalfactors,improvedprenatalandobstetricalcareduringthefirstpartofthe20thcenturyislargelyresponsibleforan29（increase）SSRoverthisperiodinmanycountries.Themalefetusismoresusceptibletolossinthewombthanisthefemalefetus,sowithmoreconceptionsreachingterm,proportionallymoremalesareborn.

Itisdifficulttodiscernhowmuchofthedecreaseinsexratiosincethe1950sarisesfromcontaminantsintheenvironment.Whatisknownisthatdruguse,highoccupationalexposuresandenvironmentalaccidents30affectSSR.Forexample,hopefulmothers31（take）clomiphenecitrate（Clomid）forinfertilityborebabieswithanSSRofonly48.5percent.Workersproducing1,2-dibromo-3-chloropropane（DBCP）,achemicalusedtokillwormsinagriculture,experiencedevenlargerdecreasesinthenumberofmalebabies.EffectsofDBCPonspermquality32（discover）incidentallywhenmaleworkersfoundthattheywereunabletofatherchildren.Aftertheexposureended,maleworkersexperiencedsomerecoveryofspermqualityand36childrenwerebornto44workers.Ofthese36childrenonly10wereboys--anSSRofjust27.8percent.

Thesedramaticchangesresultingfromextremeexposuresraisetheconcernthatchemicalsintheenvironmentat33（low）concentrationsmayalsochangetheSSRbyexposingpeopleoverlongerperiodsoftime.Forexample,therearereportsthatparentalexposuretopolychlorinatedbiphenyls（PCBs）andmercury,eachofwhichiswidelydistributedintheenvironment,canaffectthesexratio.34（confirm）sucheffectswilltakecarefulworkonlargepopulations,buttheresultsmaybequiteimportant.

SectionB（8%）

Directions:

pletethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed.

A.acpanying

B.add

C.adolescents

D.emphasizing

AB.experience

AC.generally

AD.granted

BC.limited

BD.orientedCD.regularly

ABC.scene

Wanderingaroundartgalleriesandmuseumswillbearegularfeatureofschoollife,thankstoacurriculumreformpackageaimedatbroadeningyoungminds.

Teacherswillsoonbe35studentsintovenueswheretheywillbeexposedtothearts,saidShanghaivicemayorWengTiehuiatameetingwithlocalpoliticaladvisersyesterday.

“Shanghaihasbeen36artisticeducationandrequiringstudentstohaveatleastoneartisticskillbeforegraduatingfromhighschool,”Wengsaidatthefourthsessionofthe12thShanghaimitteeoftheChinesePeople’sPoliticalConsultativeConference.

“Weplanto37watchingdramasorseeingexhibitionstocurricula,suchasChinese,artandmusiccourses.Wewilltakestudentsintoartisticvenues.”

“Wehopethatourchildrenwillenjoyvisitingtheaters,galleriesandmuseumsafterworktomaketheirlifemorecolorfulwhentheygrowup,”sheadded.

“Mosttheatersfor38areemptyonweekdays,whichmeansourschoolshavenotmadegooduseofthem,”saidCaiJinping,apoliticaladviseranddirectoroftheChildren’sTheaterofChinaWelfareInstitute.”Artisticeducationshouldnotbe39tomusicorartclassesinschools,”Caisaid.

“Wehavetobringchildrenintoprofessionalvenuesto40thepletepresentationofrealandelegantartsinperson.”

WangYang,principalofCaoyangNo2HighSchool,weledtheplan,sayingthatChinesestudentsdonotenjoythesamestandardofarts41extracurricularactivitiesthataretakenfor42inwesterncountries.

“It’simportanttocultivateartistictastesinourchildrenwhentheyareyoung.Listeningtoaconcertwhenbeingtaughtaboutamusician,orseeinganexhibitionafterlearningabouttheartist,wouldbereallyhelpfulinunderstandingthearts,”hetoldShanghaiDaily.

“Butmoststudentsfocusonlessonsatschoolandonlysomewhoaremembersofstudentartisticgroupshavetheopportunitytovisitartisticvenues43.”

Hesaidthatsomeparentsbringchildrentoconcertsorexhibitionsonweekends,butnoteveryfamilycanaffordit.

“Visitstogalleriesandtheatersarecheaperwhentheyareorganizedbyschools,”Wangsaid,addingthatthegovernmentcouldhelptoimproveShanghai’scultural44bybuildingnewartsvenues.

Readingprehension（45%）

SectionA

Directions:

ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA,B,CandD.Fillineachblankwiththewordorphrasethatbestfitsthecontext.

Whileonsummerbreakinxx,JackAndrakamadeabreakthroughincancerdetectionthathadeludedmedicalexperts.TheboyfromMarylandwas15.

UsinginformationhefoundonGoogleandWikipedia,theboy45anideafordiagnostictestforpancreaticcancer（胰岛腺）.Thetest,hesays,is168times46,400timesmoresensitiveand26,000timesmoreeconomicalthanthemedical47.

Currently,toscreenthebloodofapatient48forpancreaticcancer,doctorsmustsendvialstoalab,whereblood49aretestedforincreasedlevelsofabiomarker.Cancerresearchersanddoctorssaythatthesetests,whichare60yearsold,oftendon’tshowanyabnormalitiesevenwhenthecanceris50.

Andraka’stestprovidesanansweronthespotinfiveminuteswithwhatheestimatesiscloseto100percent51.Itinvolvesdippingfilterpaperinasolutionwhichdetectsa（n）52protein.53thebloodcontainsthebiomarker,itchangesthepaper’selectricalpotential,whichcanbe54withanohmmeter.

Thenow17-year-oldfirstgottheideafortheprojectatage13whenafamilyfriend“whowaslikeanuncle”tohimdiedfromthedisease,oneofthedeadliesttypesofcancer.Thewhizkid,whobecameinterestedinscienceatanearlyageandspendsmuchofhistimeinthelab,55helpfromscientistsandbegantocarryoutoneexperimentafteranothertoeventually56.

LenLichtenfeld,amedicalexpertattheAmericanCancerSociety,57Andraka’sworkasan“incredibleacplishment.”Inxx,Andrakawasawardedthe$75,000grandprizeintheIntelInternationalScienceandEngineeringFairforhiswork.Sincethen,hehasbeea（n）58inscientificcirclesandhastravelledaroundtheworldtogiveTEDtalks.

Whilethetestisn’tavailablemerciallyyet,Andrakaisworkingwithseveralpaniestocontinuetotestand59theproductinthehopethatitcanbesoldover-the-counterinthefuture.

45.A.caughtupwith

B.cameupwith

C.lookedforwardto

D.gaveupon

46.A.clearer

B.earlier

C.faster

D.slower

47.A.format

B.frame

C.level

D.standard

48.A.atcost

B.atrisk

C.inshadow

D.introuble

49.A.case

B.example

C.sample

D.symbol

50.A.advanced

B.awaited

C.suffered

D.sensed

51.A.accuracy

B.clarity

C.definition

D.distinction

52.A.especial

B.exact

C.special

D.specific

53.A.Although

B.Because

C.If

D.When

54.A.calculated

B.checked

C.estimated

D.measured

55.A.chased

B.hunted

C.searched

D.sought

56.A.breakthrough

B.setout

C.standout

D.takeup

57.A.broasted

B.emphasized

C.overstated

D.praised

58.A.celebrity

B.expert

C.pioneer

D.superior

59.A.exploit

B.evolve

C.improve

D.promote

SectionB

Directions:

Readthefollowingthreepassages.Eachpassageisfollowedbyseveralquestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.

（A）

Thecaseforcollegehasbeenacceptedwithoutquestionformorethanageneration.Allhighschoolgraduatesoughttogo,saysconventionalwisdomandstatisticalevidence,becausecollegewillhelpthemearnmoremoney,bee"better"people,andlearntobemoreresponsiblecitizensthanthosewhodon'tgo.

Butcollegehasneverbeenabletoworkitsmagicforeveryone.Andnowthatclosetohalfourhighschoolgraduatesareattending,thosewhodon'tfitthepatternarebeingmorenumerous,andmoreobvious.Collegegraduatesaresellingshoesanddrivingtaxis;collegestudentsinterferewitheachother'sexperimentsandwritefalselettersofremendationintheintensepetitionforadmissiontograduateschool.Otherfindnostimulationintheirstudies,anddropout—oftenencouragedbycollegeadministrators.

Someobserverssaythefaultiswiththeyoungpeoplethemselves—theyarespoiledandtheyareexpectingtoomuch.Butthatisacondemnationofthestudentsasawhole,anddoesn