高三周考英语试题 缺答案Word下载.docx
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高三周考英语试题 缺答案Word下载.docx
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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%)
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%)
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
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
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