英语真题.docx
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英语真题.docx
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英语真题
江苏省2012年普通高校专转本统一考试
英语卷
PartIReadingComprehension(共20题,每题2分,共40分)
PassageOne
AmericanresearchershavedevelopedatechniquethatmaybecomeanimportanttoolinfightingAIDS.ThetechniquestopstheAIDSvirusfromattackingitstarget-cellsinthebody'sdefensesystem.WhenAIDSvirusenterstheblood,itsearchesforbloodcellscalledT4lymphocytes(淋巴细胞).ThevirusconnectstotheoutsideofT4lymphocytes,thenforcesitswayinside.Thereitdirectsthecells'genetic(基因的)materialtoproducecopiesoftheAIDSvirus.ThisishowAIDSspreads.
ResearchersthinktheymaybeabletostopAIDSfromspreadingbypreventingvirusfromconnectingtoT4cells.WhenAIDSvirusfindsaT4cell,itactuallyconnectstoapartofthecellcalledCD4protein.
ResearcherswanttofoolthevirusbyputtingcopiesorclonesoftheCD4proteinintotheblood.ThiswaytheAIDSviruswillconnecttotheclonedproteininsteadoftherealones.Scientistsusethegeneticengineeringmethodstomaketheclones.NormallyaCD4proteinremainsontheT4cellatalltimes.TheAIDSvirusmustgotoit.
Inanewtechnique,however,theclonedCD4proteinisnotconnectedtoacell.Itfloatsfreely,somanymorecanbeputintothebloodtokeeptheAIDSvirusawayfromrealCD4proteinsonT4cells.OnereportsaystheAIDSvirusconnectstotheclonedproteinsjustaseffectivelyastorealprotein.Thatreportwasbasedontestswithbloodcellsgrowninlabs.Thetechniqueisjustnowbeginningtobetestedinanimals.Ifsuccessful,itmaybetestedinhumanswithinayear.
1.Thenewtechniquecan________.
A.cureAIDSB.killtheAIDSvirus
C.preventtheAIDSvirusfromspreading
D.producenewmedicinesforAIDS
2.WhentheAIDSvirusenterstheblood,itisreproducedby________.
A.theinsideofthevirusitselfB.anybloodcellsinthebody
C.theCD4proteinD.thegeneticmaterialofT4cells
3TheAIDSvirusconnectstoclonedproteinsinsteadoftotherealonesbecause________.
A.theclonedproteinsstayontheT4cells
B.theclonedproteinscanfloatfreelyintheblood
C.itconnectstoclonedproteinsmoreeffectivelythantotherealones
D.theclonedproteinsaremadebygeneticengineeringmethods
4.WhichofthefollowingstatementsisNOTtrue?
A.Thenewtechniquehasbeentestedinlabs.
B.Thenewtechniqueisbeingtestedinanimals.
C.Thenewtechniquemaybetestedinhumans.
D.Thenewtechniqueisnowunderclinicaltest.
5Whichofthefollowingcouldbethebesttitleofthispassage?
A.AIDS---aFatalDisease.
B.ANewTechniqueinfightingAIDS.
C.AReportontheSpreadofAIDSVirus.
D.TheTechniqueofClonedCD4Protein.
PassageTWO
Duringtheearlyearsoflastcentury,wheatwasseenastheverylifebloodofWesternCanada.Whenthecropsweregood,theeconomywasgood;whenthecropsfailed,therewasdepression.Peopleoncitystreetswatchedtheyieldsandthepriceofwheatwithalmostasmuchfeelingasiftheyweegrowers.Themarketingofwheatbecameanincreasinglyfavoritetopicofconversation.
Warsetthestageforthemostdramaticeventsinmarketingthewesterncrop.Foryears,farmersmistrustedspeculative(投机的)grainsellingascarriedonthroughtheWinnipegGrainExchange.Wheatpricesweregenerallylowintheautumn,butfarmerscouldnotwaitformarketstoimprove.Ithadhappenedtoooftenthattheysoldtheirwheatsoonafterharvestwhenfarmdebtswerecomingdue(到期),onlytoseepricesrisingandspeculatorsgettingrich.Onvariousoccasions,producergroupsaskedforfirmercontrols,butgovernmentshadnowishtobecomeinvolved,atleastnotuntilwartimewheatpricesthreatenedtorunwild.
Anxioustocheck(控制)inflation(通货膨胀)andrisinglivingcosts,thefederalgovernmentappointedaboard(董事会)ofgrainsupervisorstohandledeliveriesfromthecropsof1917and1918.GrainExchangetradingwassuspended(暂停)andfarmerssoldatpricesfixedbytheboard.Tohandlethecropof1919,thegovernmentappointedthefirstCanadianWheatBoard,withfullauthoritytobuy,sell,andsetprices.
6.Theauthorusestheterm“lifeblood”(Line1,para1.)toindicatethatwheatwas_______.
A.difficulttoproduceinlargequantities
B.waseasilyaffectedbyanimalsandplants
C.essentialtothehealthofthecountry
D.expensivetogatherandtransport
7.Accordingtothepassage,mostfarmers’debtshadtobepaid__________.
A.whentheautumnharvesthadjustbeencompleted
B.becausewheatpriceswerehigh
C.assoonastheWinnipegGrainExchangedemandedpayment
D.whencropfailurecauseddepression
8.Accordingtothepassage,wheatpricesbecameuncontrolledbecauseofconditionscausedby_____.
A.farmersB.supervisorsC.weatherD.war
9.Theword“check”(Line1,Para.3)couldbestbereplacedbywhichofthefollowing?
A.controlB.investigateC.financeD.reinforce
10.Accordingtothepassage,apreliminarystepinthecreationoftheCanadianWheatBoardwastheappointmentof______.
A.theWinnipegGrainExchangeB.aboardofsupervisors
C.severalproducergroupsD.anewgovernment
PassageThree
YellowstoneParkisvisitedbytwomillionpeopleeverysummerandistheoldest,largestandmostvisitedwildernessintheworld.
Allarewelcomeandareinvitedonarrivaltoleavetheircarsandexploreonfoot.
Yellowstone,anationalparkforever100years,liesintheStateofWyoming,totheeastoftheRockyMountain.ItisalsointhecenteroftheNorthAmericancontinent,midwaybetweentheequatorandtheNorthPole,ataheightofover2300meters.
Theverycoldwinterinthisareaclosestheparkaroundmid-NovemberandlastsuntilAprilorevenMay.InFebruarythetemperaturefallsaslowas60Fdegreebelowfreezing,andtheanimalsthatspendwinterintheparkarebestabletoliveintheconditionssuchasbison,wapiti,beaversandotters.Fortunately,theareaaroundthehotspringsandgeysersbecomesacentrallyheatedoasis(绿洲)inthedesertofsnow,providingwarmthandacertainmountoffoodfortheanimals.
Bisonusedtogoaroundtheplainsintheirmillionsuntiltheywerehuntedalmosttoextinction(灭绝)bywhitemenwithguns.In
1900onlytwodozenofthemremainedinthepark.However,sincetheybecomeaprotectedanimal,theirnumbershaverisentoovertwothousand.
Theendofwinteristhemostdangeroustimefortheanimalsasfoodbecomesevenlessandtheytakegreatrisks(冒险)tofindit,suchaswalkingacrossthinice.Thisperiodisknownas“winterkill”,whenmanyoftheweakandtheolddie,oftenfrombeingtootiredout,thusprovidingfoodforscavengerssuchasthecoyote(akindofwolf).Withthearrivalofsummer,plantsreappearandtheanimalsfillthemselveswithrichfood.Theyounggrowstrongandthetouristsreturntoenjoythewarmthor4monthsbeforeYellowstoneParkfreezesoveragain.
11Bisonusedtogoindanger.Withtheprotection,thenumberis________now.
A.fallingdownB.goingup
C.stayingthesameD.becomingless
12TheRockyMountainsare_____________
A.inthecenterofWyoming
B.tothewestofYellowstonePark
C.inthenorthofYellowstonePark
D.totheeastofYellowstonePark
13WhichofthefollowingisNOTananimal?
A.otterB.beaverC.geysersD.coyote
14.Attheendofthe19thcentury_______________.
A.bisonranaroundtheplainsintheirmillions
B.bisonwerehuntedalmosttoextinction
C.bisonbecameakindofprotectedanimal
D.theirnumberrosemorethan200
15.Fromthetext,wecanknowthat“scavengersinthelastparagraphare_______________
A.animalswhichfeedonotherdeadanimals
B.placeswherewatercomesnaturallyfromtheground
C.birdswhichliveingrassseeds
D.animalswhichalwayseatasmuchaspossible
PassageFour
Whatisyourfavoritecolor?
Doyoulikeyellow,orange,red?
Ifyoudo,youmustbeanoptimist(乐观者),aleader,anactivepersonwhoenjoylife,peopleandexcitement.Doyouprefergraysandblues?
Thenyouareprobablyquiet,shyandyouwouldratherfollowthanlead.Ifyoulovegreen,youarestrong-mindedanddetermined.Youwishtosucceedandwantotherpeopletoseeyouaresuccessful.Atleastthisiswhatpsychologist(心理学家)tellusandtheyshouldknow,becausetheyhavebeenseriouslystudyingthemeaningofcolorpreference,andtheeffectthatcolorshaveonhumanbeings.Theytellusthatwedon’tchooseourfavouritecoloraswegrowup.Ifyouhappentolovebrown,youdidsoassoonasyouopenedyoureyes,oratleastassoonasyoucouldseeclearly.
Ayellowroommakesusfeelmorecheerfulandmorecomfortablethanadarkgreenone,andareddressbringswarmthandcheertothesaddestwinterday.Ontheotherhand,blackisdepressing(压抑).Lightandbrightcolorsmakepeoplenotonlyhappierbutmoreactive.Itisafactthatfactoryworkersworkbetter,harderandhavefeweraccidentswhentheirmachinesarepaintedorangeratherthanblackordarkgray.
Remember,then,thatifyoufeellow,youcanalwaysbrightenyourdayoryourlifewithanewshirtorafewcolorfulthings.Rememberalsothatyouwillknowyourfriendsandyourenemiesbetterwhenyoufindoutwhatcolorstheylikeanddislike.Anddon’tforgetthatanyonecanguessalotaboutyourcharacterwhenyouchooseapieceofhandkerchieforalampshade.
16.Fromthispassagewelearnthatanactivepersonwouldpreferthosecolors________.
A.red,greenandyellowB.gray,blueordark
C.orange,yelloworredD.yellow,orangeorred
17brightcoloredroomcan_______one’smood.
A.depressB.brightC.happyD.cheerup
18Knowingthecolorpreferencecanhelpone____________intheirsociallife.
A.understandtheotherpeoplemoreB.affectotherpeoplemo
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