2022年安徽电气工程职业技术学院自考英语（二）练习题汇总（附答案解析）

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2022年安徽电气工程职业技术学院自考英语（二）

练习题汇总（附答案解析）

第1题【单选题】

［阅读理解】Thestructureofafamilytakesdifferentformsaroundtheworldand

eveninthesamesociety.Thefamily'sformchangesasitadaptstochangingsocial

andeconomicinfluences.Untilrecently,themostcommonforminNorthAmerica

wasthenuclearfamily,consistingofamarriedcouplewiththeirminorchildren.

Thenuclearfamilyisanindependentunit.Itmustbepreparedtofendforitself.

Individualfamilymembersstronglydependononeanother.Thereislittlehelpfrom

outsidethefamilyinemergencies.Elderlyrelativesofanuclearfamilyarecaredfor

onlyifitispossibleforthefamilytodoso.InNorthAmerica,theelderlyoftendo

notlivewiththefamily;theyliveinretirementcommunitiesandnursinghomes.

Theinformationinthefirstparagraphispresentedmainlythrough.

A、listingstatistics

B、tellingastory

C^pointingoutsimilarities

D、pointingoutdifferences

【正确答案】C

第2题【单选题】

【阅读理解】Wearesousedtoourlifeonthesurfaceoftheearththatitcanbe

quiteaneffortforourmindtobreakfreeofalltheideasthatwetakeforgranted.

Becausewecanfeelthatthingsareheavy,wethinkof"weight"asbeingafixed

qualityinanobject,butitisnotreallyfixedatall.Ifyoucouldtakeaone-pound

packetofbutter4,000milesoutfromtheearth,itwouldweighonlyaquarterofa

pound.Wefindithardtobreakfreefromideasconnectedwithlivingontheearth

because

A、itdemandstoogreataneffortforustodoso.

B、wearetoofamiliarwiththewaythingsaretoquestiontheideas.

C、wehaveprovedthatthoseideasarecorrect.

D、wearesosureofourselvesthatweneverdoubtanythingontheearth.

【正确答案】B

第3题【单选题】

【填句补文】Beesareflyinginsectscloselyrelatedtowaspsandants,andareknownfortheirrole

inpollination（授粉）andforproducinghoneyandbeeswax.Thebest-knownbeespecies

istheEuropeanhoneybee,which,asitsnamesuggests,produceshoney,asdoafewothertypesof

bee.

A、Thereisonlyonequeeninahive.

B^Everybeedoesajobwithoutbeingtold.

C、Therearenearly20,000knownspeciesofbees.

D、Beesdonotlikeiceandsnow.

【正确答案】C

第4题【单选题】

[2005.10]Thepeopleonthethirdfloorseem___aparty.Youcanhearthemlaughingand

shouting.

A、tohave

B^tobehaving

C>tohavehad

D、beinghad

【正确答案】B

第5题【单选题】

【填句补文】TheweatheroftheCaribbeanSeaisalmostalwayswarmandsunny.Sandybeaches

linethecoastsofmanyislands..Manytouristsarriveoncruiseships.

A、TheyareCuba,PuertoRico,Jamaica,andHispaniola.

B、TheCaribbeanIslandsareknownbyseveralnames.

C、Someoftheseislandsarenomorethantinyslivers（小片）ofexposedcoral.

D^Thisiswhymillionsoftouristsvisittheislandseachyear.

【正确答案】D

第6题【单选题】

［阅读理解】GyorgyBuzsakiofRutgersUniversityandhiscolleaguesanalyzedthe

brainwavesofsleepingratsandmice.Specifically,theyexaminedtheelectrical

activityemanatingfromthesomatosensoryneocortex(anareathatprocesses

sensoryinformation)andthehippocampus,whichisacenterforlearningand

memory.Thescientistsfoundthatoscillationsinbrainwavesfromthetworegions

appeartobeintertwined.So-calledsleepspindles(burstsofactivityfromthe

neocortex)werefollowedtensofmillisecondslaterbybeatsinthehippocampus

knownasripples.Theteampositsthatthisinterplaybetweenthetwobrainregions

isakeystepinmemoryconsolidation.Asecondstudy,alsopublishedonlinethis

weekbytheProceedingsoftheNationalAcademyofSciences,linksage-associated

memorydeclinetohighglucoselevels.Whatistheresultoftheexperimentwith

ratsandmicecarriedoutatRutgersUniversity

A、Theelectricalactivityisemanatingfromthesomatosensoryneocortex.

B、Oscillationsinbrainwavesarefromhippocampus.

C、Somatosensoryneocortexandhippocampusworktogetherinmemoryconsolidation.

D、Somatosensoryneocortexplaysitprimaryroleinmemoryconsolidation.

【正确答案】C

第7题【单选题】

【阅读判断】Energybeameddownfromspaceisonestepclosertoreality,nowthatCaliforniahas

giventhegreenlighttoanagreementthatwouldseethePacificGasandElectricCompanybuy200

megawatt(兆瓦)ofpowerbeameddownfromsolar-powersatellitesbeginningin2016.But

somemajorchallengeswillhavetobeovercomeifthetechnologyistobeusedwidely.Solar-power

satelliteswilluseradiowavestobeamenergydownfromspace.()

A、True

B^False

C、NotGiven

【正确答案】A

第8题【单选题】

Inonetypeoflaboratorytestallthevariablesonearecontrolled.

A、by

B、and

C、but

D、or

【正确答案】c

第9题【单选题】

[2005.4]Manyoftheyoungerbuyerssaytheyareturnedoffbythepoorofmodern

goods.

A、security

B、quantity

C、safety

D>quality

【正确答案】D

第10题【单选题】

【阅读理解】In1994,UnitedStatesCustomsseized204,391poundsofcocaine,

559,286poundsofmarijuanaand2,577poundsofheroin.Justhowmuchactually

flowsintothecountryisanyone'sguess.SomeCustomsofficialsestimatethatonly

10percentofthedrugscomingintothecountryareeverseized.InMiami,the

DistrictAttorney（检察长）won'tevenprosecutesmallfry."It'sgottobeoverfive

kilosofcocaine,aboveakiloofheroinandmorethan5,000poundsofmarijuanaor

it'snotsomethingthatwe'regoingtostopthepresseson"saysTomCash,aretired

agent.Whichofthefollowingcouldbestreplacetheexpression“smallfry“inthe

paragraph?

A^Smalldogs

B、Smallsheepdogs

C、Smallsmugglers（走私者）

D、Smallringleaders（主谋）

【正确答案】C

第口题【单选题】

Myskirtlookssimilaryours.

A、with

B、to

C>about

D、in

【正确答案】B

第12题【单选题】

[2005.10]Iwishyoumehowtoswimlastyear.

A、taught

B>havetaught

C、weretaught

D、hadtaught

【正确答案】D

第13题【单选题】

[2005.4]Theirmotherisbusyreadyforwork.

A、got

B^gets

C、toget

D、getting

【正确答案】D

第14题【单选题】

TheancientEgyptiansaresupposedrocketstothemoon.

A、tosend

B、tobesending

C、tohavesent

D、tohavebeensending

【正确答案】c

第15题【单选题】

【填句补文】Some20,000tonsofantibioticsareusedintheEuropeanUnionandtheUSeachyear.

Morethanhalfaregivetofarm—animalstopreventdiseaseandpromotegrowth..

A、ThewarningcomesfromaresearcherinSwitzerlandwholookedatlevelsofthedrugsinfarm

slurry.

B^Thedrugscouldbegettingintoourfoodandwater.

C>Manydrugsgiventohumansarealsoexcretedunchanged.

D、Butrecentresearchhasfoundadirectlinkbetweentheincreaseduseofthesefarmyard

drugsandtheappearanceofantibiotic-resistantbugsthatinfectpeople.

【正确答案】D

第16题【单选题】

【阅读判断】Theattractionofcollectingsolarpowerinspaceisthealmostuninterruptedsunshine

availableingeosynchronous(与土也球同步的)orbit.Earth-basedsolarcells,bycontrast,canonly

collectsun-lightduringdaytimeandwhenskiesareclear.Space-basedsolarcellscouldcollectsolar

poweronlywhenskiesareclear.()

A、True

B、False

C>NotGiven

【正确答案】B

第17题【单选题】

【填句补文】GangXiaoandBenSchragatBrownUniversity,visualizethecurrentbymeasuring

subtle（2田微的）changesinthemagneticfieldofanobjectand.

A、toshrinkittothesizeofadesktopcomputer

B、tomakeitcapableofmeasuringveryweakchangesinmagneticfields

C、aswellasrevealingmicroscopicdefectsinanythingfromaircrafttobanknotes

D>convertingtheinformationintoacolorpictureshowingthedensityofcurrentateachpoint

【正确答案】D

第18题【单选题】

[2004.10]Itisimpolitetoinothers'privateaffairs.

A>involve

B、invade

C、integrate

D、interfere

【正确答案】D

第19题【单选题】

【填句补文】Five-year-oldLanistilltakessevenmedicineswithherbreakfasteverymorning."She's

verygoodaboutit,“saysherfatherDavid.LaniisalivetodaybecauseofherfatherDavid,inmore

thanoneway;whenshewasoneyearoldshereceivedpartofherfather'sliverina

liver-transplantoperation.Laniwasbornwithaliverillness..Doctorsadvisedthata

transplantwastheonlywayinwhichshewouldlive.

A、Shehadoneoperationwhenshewassixweeksold,whichwasnotsuccessful.

B^Davidquicklyrecoveredfromtheoperation.

C、Davidwasfinallyabletoridehisbikeagainafteraboutayear.

D、Doctorshopethatshewillcontinuetogetstrongerandstronger.

【正确答案】A

第20题【单选题】

【阅读理解】Parentsandkidstodaydressalike,listentothesamemusic,andare

friends.Isthisagoodthing?Sometimes,whenMr.Ballmerandhis16-year-old

daughter,Elizabeth,listentorockmusictogetherandtalkaboutinterestsboth

enjoy,suchaspopculture,heremembershismoredistantrelationshipwithhis

parentswhenhewasateenager."Iwouldneverhavesaidtomymom,'Hey,the

newWeezeralbumisreallygreat.Howdoyoulikeit?'"saysBallmer."Therewas

justacompletegapintaste."Musicwasnottheonlygulf.Fromclothingand

hairstylestoactivitiesandexpectations,earliergenerationsofparentsandchildren

oftenappearedtomoveinseparateorbits.Theword"gulf"mostprobablymeans

A^interest

B、distance

C、hope

D、separation

【正确答案】D

第21题【单选题】

【阅读理解】Wearesousedtoourlifeonthesurfaceoftheearththatitcanbe

quiteaneffortforourmindtobreakfreeofalltheideasthatwetakeforgranted.

Becausewecanfeelthatthingsareheavy,wethinkof"weight"asbeingafixed

qualityinanobject,butitisnotreallyfixedatall.Ifyoucouldtakeaone-pound

packetofbutter4,000milesoutfromtheearth,itwouldweighonlyaquarterofa

pound.Howmuchwouldfourpoundsofteaweighifitwastaken4,000milesout

fromthesurfaceoftheearth?

A^1pound.

B、2pounds.

C、3pounds.

D、4pounds.

【正确答案】A

第22题【单选题】

【阅读理解】ThegreatseavoyagesofEurope's"AgeofDiscovery,"suchas

ChristopherColumbus'striptotheWestIndiesin1492,wouldhavebeen

impossiblewithouttheuseofacompass.Thisgreatdeviceforseavoyageswas

introducedtotheWestfromChinaduringthethirteenthcenturyWehaveto

thankancientChinesefortheirinventionofthecompass.Whatistheparagraph

mainlyabout?

A、Columbuswasagreatsailoranddiscoverer.

B、ThecompasswasinventedbyColumbus.

C、Theinventionofthecompassisimportantinhumanhistory.

D、ColumbusintroducedthecompasstotheWestIndies.

【正确答案】C

第23题【单选题】

[2007.10]SpanishpeopleusuallyspeakthanEnglishpeople.

A、quick

B^quickly

C、morequick

D、morequickly

【正确答案】D

第24题【单选题】

[2007.10]Tosomeextentthegoodserviceatthehotelthepoorfood.

A、broughtout

B、cameabout

C、gotdownto

D、madeupfor

【正确答案】D

第25题【单选题】

【填句补文】Mother'sDayisaspecialdayforeveryone!Weusethisdaytohonorourmothersall

overtheworld!ItisheldonthesecondSundayofMayinmanycountries,suchasAustralia,

CanadaandtheUnitedStates.ItisheldexactlythreeweeksbeforeEasterSundayintheUnited

Kingdom.Sundaysareusuallynon-schoolandnon-workingdaysinthesecountries.

A、Shewantedtomemoryhermother,AnnJarvis.

B^WhenistheearliestMother'sDaycelebration

C>ManyfamiliesbeginMother'sDaywithbreakfastinbed.

D、Mother'sDayfallsondifferentdaysindifferentthecountries.

【正确答案】D

第26题【单选题】

【填句补文】Mexico'scurrentlackoffundsisalsopartlyduetooil.Thecountryhasrichoilfields

andafewyearsago,whenoilwasexpensive,MexicowassellinglargequantitiesofoiltotheUSA

andearningalotofmoney..However,thepriceofoilthendropped,andMexicohasbeen

leftowingenormoussumsofmoneyandwithnotenoughincomefromoilsalestopaybackthe

loans.

A、Butthoseruinsareindangerofbeingseriouslydamagedbypollution.

B、Scientistsestimatethataboutonemillimeterofstoneiswornawayeverytwelveyears.

C、Atothersthepaintedsurfacesinsidetemplesareliftingandflakingoffandthestoneisbeing

eatenaway.

D、Thegovernmentwasthereforeabletoborrowhugesumsofmoneyfrombanksaroundthe

world,thinkingtheywouldhavenoproblemrepayingtheirdebts.

【正确答案】D

第27题【单选题】

[2005.10]Youcanneverknowheisreallyaimedat.

A、what

B、how

C、why

D^who

【正确答案】A

第28题【单选题】

[2005.4]Theirmotherisbusyreadyforwork.

A、got

B、gets

C>toget

D^getting

【正确答案】D

第29题【单选题】

[2009.7]Shefoundthejob,andfeltthatshewasn'taccomplishinganythingthere.

A^rewarding

B^frustrating

C、appealing

D、challenging

【正确答案】B

第30题【单选题】

【阅读理解】In1994,UnitedStatesCustomsseized204,391poundsofcocaine,

559,286poundsofmarijuanaand2,577poundsofheroin.Justhowmuchactually

flowsintothecountryisanyone'sguess.SomeCustomsofficialsestimatethatonly

10percentofthedrugscomingintothecountryareeverseized.InMiami,the

DistrictAttorney（检察长）won'tevenprosecutesmallfry."It'sgottobeoverfive

kilosofcocaine,aboveakiloofheroinandmorethan5,000poundsofmarijuanaor

it'snotsomethingthatwe'regoingtostopthepresseson,“saysTomCash,aretired

agent.Whichofthefollowingcouldbestreplacetheexpression“smallfry“inthe

paragraph?

A、Smalldogs

B^Smallsheepdogs

C、Smallsmugglers（走私者）

D、Smallringleaders（主谋）

【正确答案】C

第31题【单选题】

【阅读判断】Today,nottoofaroffNixon'sdeadline,Americaislookingatthatpossibility.Overthe

weekend,HillaryRodhamClinton,wifeofformerpresidentBillClinton,announcedherrunfor2008

presidency.Q:BillClintonwillstronglysupportHillarytorunforthe2008presidency.

A、True

B、False

C>NotGiven

【正确答案】c

第32题【单选题】

【填句补文】Five-year-oldLanistilltakessevenmedicineswithherbreakfasteverymorning."She's

verygoodaboutit,"saysherfatherDavid.LaniisalivetodaybecauseofherfatherDavid,inmore

thanoneway;whenshewasoneyearoldshereceivedpartofherfather'sliverina

liver-transplantoperation.Laniwasbornwithaliverillness..Doctorsadvisedthata

transplantwastheonlywayinwhichshewouldlive.

A、Shehadoneoperationwhenshewassixweeksold,whichwasnotsuccessful.

B^Davidquicklyrecoveredfromtheoperation.

C、Davidwasfinallyabletoridehisbikeagainafteraboutayear.

D、Doctorshopethatshewillcontinuetogetstrongerandstronger.

【正确答案】A

第33题【单选题】

[2005.10]I'mafraidnothingIcandoaboutit.

A、itis

B、thisis

C、thereis

D、thatis

【正确答案】c

第34题【单选题】

【阅读理解】Myteacheroncesaidtome,"Ifyoudon'tquit,youwillwin”.Ihaveno

desiretoquitwritingasI'mhavingtoomuchfun.MythanksgotoAssociated

ContentandtheYahoo!ContributorNetworkforallmyprogressinwriting!Andto

myfellowwriters—thankyousomuchforyoursupportandfriendship.Maywe

continuetosupporteachotherformanyyearstocome!Wecanlearnfromthe

passagethat.

A、theauthorthinkswritingontheNetisveryeasy

B、theauthorhashisfirstbookpublishedontheNet

C、twoyearshaspassedsincetheauthorbeganwriting

D^theauthorisgratefulforthecontentsitessincerely

【正确答案】D

第35题【单选题】

（填句补文】Inordertoproducehighqualityproducts,theTasmaniangovernmentunderstandsthe

needforgettinghighqualityirrigationequipmentatalltimes,suchastravellingirrigators（灌溉车）,

pumpsandotherirrigationtools,whicharethekeytothesuccessofthegrowers.Itisalsono

wonderwhyirrigationequipmentmakersandsuppliersaremakingmuchmoneyintheregion.

A、Theyplayakeyroleinmeetingtheneedsofthefarmers.

B、Throughtheyears,peopletherehavecomeupwithlong-termsolutionsthatmainlyfocuson

developingorimprovingitsvariousirrigationsystems.

C、TravellingirrigatorsfirstappearedintheEastHanDynastyinChina.

D^Nextonthelistisdripirrigationandsprayirrigation.

【正确答案】A

第36题【单选题】

【阅读判断】Norwich,thecapitalofthepartofBritainknownasEastAnglia,hasbeeninexistence

formorethantwothousandyears.ItbeganasasmallvillagebesidetheRiverWensum.Atthetime

oftheNormaninvasionin1066ithadgrowntobecomeoneofthelargesttownsinEngland.The

RiverWensumflowsbyNorwich

A、True

B、False

C、NotGiven

【正确答案】A

第37题【单选题】

[2004.10]Theteacher'sinsistenceonhighstandardsresulted___excellentwork.

A、with

B、from

C、in

D、to

【正确答案】c

第38题【单选题】

[阅读理解】WritingforthecontentsitessuchastheYahoo!ContributorNetwork

alsointerestsme.I'vebeentryingcreativewriting,news,reviewsandnumerous

lifestyleissues.Andallofthesetopicshavebeenofmyownchoosing.Thenthereis

theopportunitytomeetotherwriters.TheYahoo!ContributorNetworkhasa

wonderfulin-housemessagingsystemthatallowsitswriterstocommunicateeasily

withoneanother.Notallyourtriesarerosyandeasywhenyouwriteforacontent

site,butyouwillgetmuchbenefitifyoutryit.WhatisthebenefitthattheYahoo!

ContributorNetworkoffersaccordingtotheauthor?

A、Youcanhaveallyourarticlespublished.

B、Youcangetalotofrewardsfromthesite.

C^Youcaneasilycommunicatewithotherwriters.

D、Youcanuseitsinformationandmessagesfree.

【正确答案】C

第39题【单选题】

[2007.10]Tosomeextentthegoodserviceatthehotelthepoorfood.

A、broughtout

B、cameabout

C>gotdownto

D、madeupfor

【正确答案】D

第40题【单选题】

【阅读理解】Besides,itisratherunrealtogradepeoplejustaccordingtotheir

intellectualability.Thisisonlyoneaspectoftheirtotalpersonality.Weare

concernedtodeveloptheabilitiesofallourpupilstothefull,notjusttheir

academicability.Wealsovaluepersonalqualitiesandsocialskills,andwefindthat

mixed-abilityteachingcontributestoalltheseaspectsoflearnlng.Theauthorargues

thatateacher'schiefconcernshouldbethedevelopmentofthestudent's.

A、personalqualitiesandsocialskills

B、totalpersonality

C、learningabilityandcommunicativeskills

D、intellectualability

【正确答案】B

第41题【单选题】

[2007.4]Diamondsarethehardestsubstance___innature.

A、find

B、found

C、finding

D、tofind

【正确答案】B

第42题【单选题】

【填句补文】Onceuponatimetherewasarichvillage.Thewealthiestofthevillagersdecidedto

hideahugelump(堆)ofgoldtoprotectitfromrobbers.

A、Apooroldfarmerdecidedtoplowthefield.

B、Whenyouarealwaysreadytoshareyourownthingswithothers,youaredoomedtobenefit

fromit.

C、AndIwillreceivethehonorwiththefourthbygivingittotheneedy.

D、Soheburieditinanearbyricefield.

【正确答案】D

第43题【单选题】

【阅读理解】TwoUnitedNationsagencieswarnedonTuesdaythatchildrenare

mostatriskofdevelopingskincancersasaresultofthelong-termdeclineinthe

earth'sprotectiveozonelayer.Theagencies,theWorldHealthOrganization(WHO)

andtheUNEnvironmentalProgramme(UNEP),issuedthewarningasthey

launchedaglobalprogrammeaimedatalertingschoolstothedangersofexposure

tothesun.Whydoestheriskofdevelopingskincancersinchildrenbecomegreater

andgreater

A、Becausetheypaylittleattentiontotheirskinhealth.

B、Becausetheyareshortofphysicaltraining.

C>Becausetheearth'sprotectiveozonelayerdeclinesyearafteryear.

D>Becausetheearthisgettingwarmerandwarmer.

【正确答案】c

第44题【单选题】

[2005.4]Manyoftheyoungerbuyerssaytheyareturnedoffbythepoorofmodern

goods.

A>security

B>quantity

C、safety

D、quality

【正确答案】D

第45题【单选题】

【填句补文】Theblackrobin（旅鸦）isoneoftheworld'srarestbirds.Itisasmall,wildbird,andit

livesonlyontheislandofLittleMangere,offthecoastofNewZealand.In1967therewereabout

fiftyblackrobinsthere;in1977therewerefewerthanten..

A、Thesearetheonlyblackrobinsleftintheworld.

B、Thosethatfailtomeetthechallengeswilldisappearearly.

C>Bothrepresentordersintheclassificationoflife.

D^Detailedstudiesaregoingon,andapublicappealformoneyhasbeenmade.

【正确答案】A

第46题【单选题】

［阅读理解】Ontheotherhand,onthemoontherewillbeanattractionbetween

thebutterandthemoon;butthebutterwillweighonlyaboutone-sixthasmuchas

itdoesontheearth.Thisisbecausethemoonissomuchsmallerthantheearth.

Theamountofgravitationalpullthatabodyproducesdependsontheamountof

materialinit.Apacketofbutterhasagravitationalpullofitsown;butthisisvery

smallinrelationtothepullofsomethingaslargeasthemoon,ortheearth,orthe

sun.Wedonotfeelthegravitationalpullofapacketofbutterbecause

A、itistoosmalltohaveagravitationalpullofitsown.

B、itspullissosmallthatwetendtoignoreit.

C^itspulldisappearsinthepresenceoftheearth'sgravitation.

D、ittendstomeltandlosesitsgravitationalpull.

【正确答案】B

第47题【单选题】

【阅读理解】GyorgyBuzsakiofRutgersUniversityandhiscolleaguesanalyzedthe

brainwavesofsleepingratsandmice.Specifically,theyexaminedtheelectrical

activityemanatingfromthesomatosensoryneocortex(anareathatprocesses

sensoryinformation)andthehippocampus,whichisacenterforlearningand

memory.Thescientistsfoundthatoscillationsinbrainwavesfromthetworegions

appeartobeintertwined.So-calledsleepspindles(burstsofactivityfromthe

neocortex）werefollowedtensofmillisecondslaterbybeatsinthehippocampus

knownasripples.Theteampositsthatthisinterplaybetweenthetwobrainregions

isakeystepinmemoryconsolidation.Asecondstudy,alsopublishedonlinethis

weekbytheProceedingsoftheNationalAcademyofSciences,linksage-associated

memorydeclinetohighglucoselevels.Whatistheresultoftheexperimentwith

ratsandmicecarriedoutatRutgersUniversity

A、Theelectricalactivityisemanatingfromthesomatosensoryneocortex.

B、Oscillationsinbrainwavesarefromhippocampus.

C、Somatosensoryneocortexandhippocampusworktogetherinmemoryconsolidation.

D、Somatosensoryneocortexplaysitprimaryroleinmemoryconsolidation.

【正确答案】C

第48题【单选题】

【阅读理解】Decibels（分贝）measuredinwateraredifferentfromthose

measuredonland.Anoiseofonehundred-twentydecibelsonlandcausespainto

humanears.Inwater,adecibellevelofone-hundredninety-fivewouldhavethe

sameeffect.Whichofthefollowingisdiscussedintheparagraph?

A^Thesamenoiselevelproducesadifferenteffectonlandandintheocean.

B、Differentplacesmayhavedifferenttypesofnoises.

C、Thedecibelisnotasuitableunitformeasuringunderwaternoise.

D、Differentoceananimalsmayhavedifferentreactionstonoises.

【正确答案】A

第49题【单选题】

【阅读理解】Untilrecently,the"scienceofthefuture"wassupposedtobe

electronicsandartificialintelligence.Todayitseemsmoreandmorelikelythatthe

nextgreatbreakthroughsintechnologywillbebroughtthroughacombinationof

thosetwoscienceswithorganicchemistryandgeneticengineering.This

combinationisthescienceofbiotechnology.Accordingtothepassage,thescience

ofthefutureislikelytobe.

A、electronics

B、biotechnology

C、geneticengineering

D、nucleartechnology

【正确答案】B

第50题【单选题】

【概括大意】Radarisnowafamiliartool.Likemanyothersitwasanunexpecteddiscovery.Itwas

firstobservedbytworesearchers,whowerestudyingsoundcommunication.Theyweresending

signalsfromastationononesideofariverinWashingtonDtoavehicleacrosstheriver.They

discoveredthattheirsignalswerestoppedbypassingships.Theyrecognizedtheimportanceofthis

discoveryatonce.Themainideaofthisparagraphis.

A、StudyofRadar

B、Radarisnowafamiliartool

C、RadarWorkingPrinciples

D、RadarwasDiscoveredbyChance

【正确答案】D

第51题【单选题】

【阅读理解】Mostofuswalkandcarryitemsinourhandseveryday.Theseare

seeminglysimpleactivitiesthatthemajorityofusdon'tquestion.Butan

internationalteamofresearchers,includingDr.RichmondfromGW'sColumbian

CollegeofArtsandSciences,havediscoveredthathumanwalkinguprightmayhave

originatedmillionsofyearsagoasanadaptationtocarryingscarce,high-quality

resources.WhichofthefollowingstatementsisNOTtrueaccordingtothefirsttwo

paragraphs

A、Manypeoplequestionthesimplehumanactivitiesofwalkingandcarryingitems.

B、Chimpanzee'sbehaviorsmaysuggestwhyhumanswalkontwolegs.

C、Humanwalkinguprightisviewedasanadaptationtocarryingpreciousresources.

D^Ourancestors/ecologicalconditionsresembledthoseofmodern-daychimpanzees7.

【正确答案】A

第52题【单选题】

【阅读理解】In2006,Blackburn,oftheUniversityofCalifornia,SanFrancisco,and

Greider,ofJohnsHopkinsUniversityinBaltimore,sharedtheLaskerprizeforbasic

medicalresearchwithJackSzostakofHarvardMedicalSchool.Theirworksetthe

stageforresearchsuggestingthatcancercellsusetelomerasetosustaintheir

uncontrolledgrowth.TheresearchbyBlackburnandGreiderhelpssuggesttherole

of.

A、moneyinmedicalresearch

B、proteinsincancertreatment

C、hormonesinthefunctioningoflife

D、telomeraseinthegrowthofcancercells

【正确答案】D

第53题【单选题】

【阅读理解】Myteacheroncesaidtome,"Ifyoudon'tquit,youwillwin".Ihaveno

desiretoquitwritingasI'mhavingtoomuchfun.MythanksgotoAssociated

ContentandtheYahoo!ContributorNetworkforallmyprogressinwriting!Andto

myfellowwriters—thankyousomuchforyoursupportandfriendship.Maywe

continuetosupporteachotherformanyyearstocome!Wecanlearnfromthe

passagethat.

A、theauthorthinkswritingontheNetisveryeasy

B、theauthorhashisfirstbookpublishedontheNet

C、twoyearshaspassedsincetheauthorbeganwriting

D、theauthorisgratefulforthecontentsitessincerely

【正确答案】D

第54题【单选题】

【阅读理解】Inthisworldofchangeandcomplexity,theneedforinformationisof

greatestimportance.Thosepeoplewhohaveaccurate,reliableup-to-date

informationtosolvetheday-to-dayproblems,thecriticalproblemsoftheir

business,socialandfamilylife,willsurviveandsucceed"Knowledgeispower"may

wellbethetruestsayingandaccesstoinformationmayb