大学英语精读(3)华师在线作业(所有选择题部分)

Manyayoungpersontellsmehewantstobeawriter.Ialwaysencouragesuchpeople,butIalsoexplainthatthere’sabigdifferencebetweenawriterandwriting.Inmostcasestheseindividualsaredreamingofwealthandfame,notthelonghoursatatypewriter.“Youhavegottowanttowrite,”Isaidtothem,“notwanttobeawriter.”Therealityisthatwritingisalonely,privateandpoor-payingaffair.Foreverywriterkissedbyfortunetherearethousandsmorewhoselongingisneverrewarded.WhenIlefta20-yearcareerintheU.S.CoastGuardtobecomeafreelancewriter,Ihadnoprospectsatall.WhatIdidhavewasafriendwhofoundformemyroominaNewYorkapartmentbuilding.Itdidn’tevenmatterthatitwascoldandhadnobathroom.Iimmediatelyboughtausedtypewriterandfeltlikeagenuinewriter.Afterayearorso,however,Istillhadn’tgotabreakandbegantodoubtmyself.Itwassohardtosellastorythatbarelymadeenoughtoeat.ButIknewIwantedtowrite.Ihaddreamedaboutitformanyyears.Iwasn’tgoingtobeoneofthosepeoplewhodiedwondering.Whatif?Iwouldkeepputtingmydreamtotest(eventhoughitmeantlivingwithuncertaintyandfearoffailure).Thisistheshadow-landofhope,andanyonewithadreammustlearntolivethere.1.Thepassageismeantto___A____A、warnyoungpeopleofthehardshipthatasuccessfulwriterhastoexperienceB、adviseyoungpeopletogiveuptheirideaofbecomingaprofessionalwriterC、showyoungpeopleitisunrealisticforawritertopursuewealthD、encourageyoungpeopletopursueawritingcareer2.Whatcanbeconcludedfromthepassage?DA、Genuinewritersoftenfindtheirworkinterestingａｎｄrewarding.B、Awriter’ssuccessdependsonluckratheroneffort.C、Famouswritersusuallyliveinpovertyａｎｄisolation.D、Thechancesforwriterstobecomesuccessfularesmall.3.Whydidtheauthorbegintodoubthimselfafterthefirstyearsofhiswritingcareer?BA、Hewasnotabletoproduceasinglebook.B、Hehadn’tseenachangeforthebetter.C、Hewasn’tabletohavearestforawholeyear.D、Hefoundhisdreamwouldnevercometrue.4.In“…peoplewhodiedwondering”,“who”referstothose___B___.A、whothinktoomuchofthedarksideoflifeB、whoregretgivinguptheircareerhalfwayC、whothinkalotwithoutmakingadecisionD、whoarefullofimaginationevenupondeath5.“Shadow-land”inthelastsentencerefersto____C__.A、thewonderlandoneoftendreamsaboutB、thebrightfuturethatoneislookingforwardtoC、thestateofuncertaintybeforeone’sfinalgoalisreachedD、aworldthatexistsonlyinone’simaginationInmanystoriesonTVandinscience-fictionbooks,mentraveltofarawaystars.Theyhavequick,easyjourneys.Butsofar,menhavebeenabletoreachonlytheearth’sownmoon.Supposeamanwantedtoreachadistantstar.Evenifhetraveledhiswholelife,hewouldhavetomovefasterthanthespeedofthelight.Nothingcanmovethatfastexceptlightitself.Strangethingshappentoanobjectwhenitmovesrapidly.Theobjectweighsmore.Anobjectmovingat86percentofthespeedoflightistwiceasheavyasitisatrest.Astickappearsshorter.Aclockrunsmoreslowly.Amanwouldnotagesofastashewouldontheearth.Lighttravelsmorethan186,000milesasecond,orabout11millionmilesaminute.Inoneyear,lighttravelssixtrillionmiles.Thatgreatdistanceiscalledalight-year.Itisusedtomeasuredistanceinspace.ThestarclosesttooursunisAlphaCentauri.Itismorethanfourlight-yearsaway.Ifonetraveledatthespeedoflight,hecouldmakearoundtriptoAlphaCentauriinnineyears.But,evenatthatspeed,hecouldnotreachAlcaid(北斗星)inthehandleoftheBigDipper.Aone-wayjourneytoAlcaidwouldtakealmost200years.1.Inthispassagethewords“closesttooursun”meansthestar____B____.A、theearthweliveonB、AlphaCentauriC、theBigDipperD、themoon2.Aone-wayjourneytoAlcaidwouldtake___C_____.A、aboutnineyearsB、lessthanfouryearsC、almost200yearsD、lessthan100years3.Whydowemeasurethedistanceinlight-yearsinsteadofmiles?BA、Unitsoflight-yearssoundbetter.B、Usinglight-yearsreducedthenumberoffiguresused.C、Weusedtomeasuredistanceinlight-yearslongago.D、Wedonotmakemistakeswhenweｕｓｅlight-years.4.Ifastonemovedatthespeedoflight,it___A_____A、wouldweightwicemorethanitismotionlessB、wouldweighasmuchasitisonearthC、wouldweighlessthanitisonearthD、wouldnothaveweightatall5.Thisstoryismainlyabout_____B___.A、thedistancebetweenthesunａｎｄtheotherstarsB、theproblemsoftravelingtofarawaystarsC、whathappenswhenwetravelfasterthanthespeedoflightD、thetoolweｕｓｅwhenwegotofarawaystarsStudentscantravelintheUnitedStateswithoutspendingtoomuchmoneyiftheyfollowthesesuggestions.Atravelagentcangiveyouinformationonspecialeconomyfaresfortrains,busesandplanes.Thinkabouthikingorbikingforapartofyourtrip,too.You’llnotonlysavemoney,butyou’llalsoseealotmoreofthecountry.Somestudentsmaywanttotravelbycar.Besuretothinkaboutgoingwithotherstudents—manycollegeshave“rideboards”thatlistwhenandwhereotherstudentsplantotravel.Manyradiostationsprovidethesamesortofservice—theyannouncewho’sdrivingwhere,when,howmanyriderstheywilltakeandwhattheexpenseswillbe.Therearemanyinexpensive,olderhotelsnearbusortrainstations.Checkyourtravelguidefornamesofthebest.Manypartsofthecountryalsohaveyouthhostelswhereyoungpeoplecanstayforonlyafewdollarsanight.Youdon’thavetoeatinrestaurantsallthetime,butwedon’trecommendadietofcandyandcola,either.Youcanusuallygetahealthy,cheapbreakfastinarestaurant.Iftheweatheriswarm,youcanbuyfoodinsupermarketsoratroadsidestandsandhaveapicnicforlunch.Fordinneryoucangetthenamesofgood,cheaprestaurantsfro