远程英语下辅导1Word下载.docx

远程英语下辅导1Word下载.docx

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PartIReadingComprehension（30%）

Directions:

Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandblackenthecorrespondingletterontheAnswerSheet.

PassageOne

“Ihavegreatconfidencethatbytheendofthedecadewe’llknowinvastdetailhowcancercellsarise,”saysmicrobiologistRobertWeinberg，anexpertoncancer.“But,”hecautions,“somepeoplehavetheideathatonceoneunderstandsthecauses,thecurewillrapidlyfollow.ConsiderPasteur.Hediscoveredthecausesofmanykindsofinfections,butitwasfiftyorsixtyyearsbeforecureswereavailable.”

76）Thisyear，50percentofthe910000peoplewhosufferfromcancerwillsurviveatleastfiveyears.Intheyear2000,theNationalCancerInstituteestimates,thatfigurewillbe75percent.Forsomeskincancers，thefive-yearsurvivalrateisashighas90percent.Butothersurvivalstatisticsarestilldiscouraging–13percentforlungcancer，and2percentforcancerofthepancreas（胰腺）．

Withasmanyas120varietiesinexistence,discoveringhowcancerworksisnoteasy.Theresearchersmadegreatprogressintheearly1970s,whentheydiscoveredthatoncogenes,whicharecancer-causinggenes（基因），areinactiveinnormalcells.Anythingfromcosmicraystoradiationtodietmayactivateadormantoncogene,buthowremainsunknown．Ifseveraloncogenesaredrivenintoaction，thecell，unabletoturnthemoff，becomescancerous．

77）Theexactmechanismsinvolvedarestillmysterious,butthelikelihoodthatmanycancersareinitiatedatthelevelofgenessuggeststhatwewillneverpreventallcancers.“Changesareanormalpartoftheevolutionaryprocess,”sayoncologistWilliamHayward.Environmentalfactorscanneverbetotallyeliminated;

asHaywardpointsout,“Wecan’tprepareamedicineagainstcosmicrays.”

Theprospectsforcure,thoughstilldistant,arebrighter.

“First,weneedtounderstandhowthenormalcellcontrolsitself.Second,wehavetodeterminewhethertherearealimitednumberofgenesincellswhicharealwaysresponsibleforaleastpartofthetrouble.Ifwecanunderstandhowcancerworks,wecounteractitsactions.”

1.ThepurposeoftakingtheexampleofPasteuristo______.

A.predictthatthesecretofcancerwillbeexposedinadecade

B.illustratethattheprospectsforcuringcancerarebright

C.provethatcancerwillbecuredintenyears

D.indicatethatthereisstillalongwaytogobeforecancercanbeconquered

2.Bytheyear2000,itispossiblethat_______.

A.therewillbearemedytocureallthecancer.

B.90percentoftheskin-cancerpatientstodaywillstillbeliving

C.thesurvivalstatisticswillbefairlyevenamongpatientswithvariouscancers

D.therewon’tbeadrasticincreaseofsurvivalrateofallcancerpatients

3.Oncogenesarecancer-causinggenes_______.

A.thatarealwaysinoperationinahealthyperson

B.whichremainunharmfulsolongastheyarenotactivated

C.thatcanbedrivenoutofnormalcells

D.whichnormalcellscan’tturnoff

4.Theword“dormant”inthethirdparagraphmostprobablyisreplacedby______.

A.sleepyB.potencialC.deadD.inactive

5.Itcanbeincludedthat_____.

A.oncesomeoneunderstandsthecausesofcancer,thecurewillrapidfollow

B.itisknownthathowtoactivateadormantoncogene

C.theprospectforcuringcancerisnotbrightatall.

D.wecan’tcounteractcancer’sactionunlessweknowhowcancerworks

PassageTwo

KelleyMcKeeofSteelton,Pennsylvania,neverhadanyintentionsoftakingDistanceEducationcourses.Shehadalreadyobtainedacertificateatabusinessschool.Shewasmarried,hadchildrenandworkedasalegalassistant.Butherlifechangedforeverwhenshebrokeherneckandbecameparalyzed.Shewasjust27yearsold.

78）Overtime,Kelleyhaslearnedtomoveherfingersenoughtouseacomputerandtogetarounddailywiththehelpofawheelchair.Althoughthatprogressisnotenoughtoallowhertocontinueherpreviouscareer,otheropportunitieshaveopenedupforher.

Kelleysaid,"

Theaccidentchangedmyoutlookonlife,andIimmediatelylookedtoeducationsinceIhadnodegree."

Mosttraditionalprogramsdidnotallowhertobalancehereducationwithagrowingfamily.Then,KelleyfoundPennStateDistanceEducation.

DistanceEducationishardwork,butmychildrenmakeitallworthwhile.EvenifforsomereasonIcan'

tworkafterobtainingmydegree,Iwillbeaneducatedperson,settingagoodexampleformychildrenandhavinggainedtheknowledgethatcanhelpthemintheirfutureefforts.DistanceEducationhaschangedmylifefromtragedytotriumph,"

shesaid.DistanceEducationaffordsmeanopportunitytopursuemyowngoalsandpersonalwork.Myeducationisseparatefrommy"

issuesregardingmydisabilityormyfamilylifeandcaringformychildren."

CommentingonMcKee'

sexperience,GaryE.Miller,vicepresidentforDistanceEducationanddirectoroftheWorldCampus,noted,"

Kelley'

sstoryisawonderfulreminderabouttheimpactofDistanceEducationonthelivesofourstudentswhocannotmeettheirneedsthroughtraditionalon-campusprograms."

JaneIreland,academicadvisorforDistanceEducationandtheWorldCampus,added:

"

KelleyremindsusofthemissionwehaveinDistanceEducation--tobringaqualityeducationandexperiencetostudentsregardlessoftheirgeographicvocationorlifecircumstances.Kelleyisawonderfulexampleforusofthegreateffectwehaveonthelivesofagreatmanystudentswhotrulyneedaccesstoeducation."

Kelleyisasuccessfulstudent,carryingcreditseachsemester.Sheplanstocompleteherbachelor'

sdegreeinletters,arts,andsciences,thencontinueontoobtainanonlinemaster'

sdegree.

Aftergraduation,McKeehopestoworkwithinjuredordisabledindividuals,possiblyincounselinginarehabilitationsetting.JaneIrelandhasnodoubtKelleywillachievehergoals.

79）Kelleyisthankfultoheroutstandinginstructorsandanumberofstudentsupportservices,includingfinancialaid,disabilityservicesandvocationalrehabilitation.Manyofthesefacultyandstaff,however,saythatitisKelleyMcKeewhohasbeenoutstanding.

SusanWaitkus,instructorinEnglishatPennState'

sDuBoisCampus,stated,Kelleyinspiresnotonlyotherstudents,butalsofacultyfortunateenoughtoknowher.Sheremindsushowprivilegedwearetoteach."

6.KellyMcKeedidn’tthinkoftakingDistanceEducationcoursesbecause_______.

A.takingdistanceEducationCourseswasalotofwork

B.shewassatisfiedwithherpreviouseducation

C.therewasnothingsheparticularlywantedtolearn

D.shehadasuitableeducationforherpreviouscareer

7.Kelley’slifewaschangedsomuchbytheaccidentthatshe_______.

A.neededconstanthelpindailylife

B.couldn’tlivewithoutherdoctor’shelp

C.neededtouseawheelchair

D.hadtohireapersontotakecareofher

8.Kelleydidn’tchoosetraditionaleducationbecause_______.

A.shedidn’tlikeit

B.herfamilyneededherathome

C.itwouldn’ttakemarriedstudents

D.shewasdisabled

9.DistanceEducationwasofgreatimportancetoKellybecause______.

A.shecouldbecomeabettereducatedperson

B.shecouldsetagoodexampletoherchildrenandhelpthem

C.shecouldhaveotheropportunitiestoworkandachievehergoals

D.alloftheabove

10.Accordingtotheacademicadvisorsfordistanceeducation,theirmissionis_______.

A.tohelpanystudentwhocannotgotothecampustohavequalityeducation

B.toprovidethestudentswiththebesteducationtheycanofferonthecampus

C.tobringeducationtoagreatgeographicdistanceusingmoderntechnology

D.tohelpdisabledstudentswhocannototherwisehavetheireducation

PassageThree

Asaresource,theWorldWideWeb（Web）containshugeamountsofinformation.TheWebisextensive,relativelyeasytoaccess,andprovidesvirtuallyunlimitedinformation.Anexcellentresourcetogainknowledge,theWebisleadingthe"

informationrevolution"

.Ithasmadeahugedifferenceintheworld,andwillcontinuetodoso.Whenyouneedcurrentinformationandyouneeditnow,thereisnoalternative.

Overthepast12yearsIhavebeeninvolvedintechnologyresearch.Originally,IobtainedsoftwareinformationfromprintedreferencematerialsandthenfromCDs.TheadventoftheWebasaresearchtoolhasgreatlyexpandedtheavailabilityofinformationwhilereducingtheamountoftimeneededoneachtask.

ThemajorityofmytimeontheWebinvolveslookinguptechnicalcomputerinformation,whichIuseforteachingMicrosoftapplicationsclassesandprovidingtechnicaladviceatwork.Outsideofwork,Ireallylikefollowingallaspectsofthefinancialworld,andtheWebhasturnedintoagreatresourceforthishobby.

Ican'

timaginebeingwithoutit.Althoughittakestimetosiftthroughthemultitudeofsources,IfindthatafteryearsofuseIcanquicklyanalyzethesearchresultstofindthemostappropriatesite.TheamountofinformationontheWebisstaggering,soitisimportanttorememberwhatitisyouaresearchingforandnotgetsidetracked.

TheWebisawonderfulresourcewhenyoucansubstantiatethattheinformationprovidedisaccurateandtrue.Likeanyotherresource,theWebhasgoodandnotsogoodinformationtoshare.Dependingonwhatyouarelookingfor,youhavetojudgeforyourselfhowrelevantthematerialisforyou.Itisimportant