英语口语练习题

1英语口语练习题一、阅读理解PassageOneUnlesswespendmoneytospotandpreventasteroids(小行星)now,onemightcrashintoEarthdestroylifeasweknowit,saysomescientists.Asteroidsarebiggerversionsofthemeteoroids(流星)thatraceacrossthenightsky.MostorbitthesunfarfromEarthanddon’tthreatenus.ButtherearealsothousandswhoseorbitsputthemonacollisioncoursewithEarth.Buy＄50millionworthnewtelescopesrightnow.Thenspend＄10millionayearforthenext25yearstolocatemostofthespacerocks.Bythetimewespotafatalone,thescientistssay,we’llhaveawaytochangeitscourse.Somescientistsfavorpushingasteroidsoffcoursewithnuclearweapons.Butthecostwouldn’tbecheap.Isitworthit?Twothingsexpertsconsiderwhenjudginganyriskare:1)Howlikelytheeventis;and2)Howbadtheconsequencesiftheeventoccurs.ExpertsthinkanasteroidbigenoughtodestroylotsoflifemightstrikeEarthonceevery500,000years.Soundsprettyrare-butifonedidfall,itwouldbetheendoftheworld.“Ifwedon’ttakecareofthesebigasteroids,they’lltakecareofus,”saysonescientist.“It’sthatsimple.”Thecure,though,mightbeworsethanthedisease.DowereallywantfleetsofnuclearweaponssittingaroundonEarth?“Theworldhaslessgofearfromdoomsday(毁灭性的)rocksthanfromagreatnuclearfleetsetagainstthem,”saidaNewYorkTimesarticle.1.Whatdoesthepassagesayaboutasteroidsandmeteoroids?A.Theyareheavenlybodiesdifferentincomposition.B.Theyareheavenlybodiessimilarinnature.C.Therearemoreasteroidsthanmeteoroids.D.Asteroidsaremoremysteriousthanmeteoroids.2.WhatdoscientistssayaboutthecollisionofanasteroidwithEarth?A.Itisveryunlikelybutthedangerexists.B.Suchacollisionmightoccuronceevery25years.C.CollisionsofsmallerasteroidswithEarthoccurmoreoftenthanexpected.D.It’sstilltooearlytosaywhethersuchacollisionmightoccur.3.Whatdopeoplethinkofthesuggestionofusingnuclearweaponstoalterthecourseofasteroids?A.Itsoundspracticalbutitmaynotsolvetheproblem.B.Itmaycreatemoreproblemsthanitmightsolve.C.ItisawasteofmoneybecauseacollisionofasteroidswithEarthisveryunlikely.D.Furtherresearchshouldbedonebeforeitisprovedapplicable.4.WecanconcludefromthepassagethatA.Whilepushingasteroidsoffcoursenuclearweaponswoulddestroytheworld.B.asteroidsracingacrossthenightskyarelikelytohitEarthinthenearfuture.C.theworryaboutasteroidscanbelefttofuturegenerationssinceitisunlikelytohappeninourlifetime.D.workablesolutionsstillhavetobefoundtopreventacollisionofasteroidswithEarth.5.Whichofthefollowingbestdescribestheauthor’stoneinthispassage?A.OptimisticB.CriticalC.ObjectiveD.ArbitraryPassageTwoBelieveitornot,opticalillusion(错觉)cancuthighwaycrashes.Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Bentstripes,calledchevrons(人字形)paintedontheroadsmakedriversthinkthattheyaredrivingfasterthantheyreallyare,andthusdriversslowdown.NowtheAmericanAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyear,thefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes.Excessivespeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidents,accordingtothefoundation.Tohelpreducethoseaccidents,thefoundationwillconductitstestsinareaswherespeed–relatedhazardsarethegreatest–curves,exitslopes,trafficcircles,andbridges.Somestudiessuggestthatstraight,horizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.However,trafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbar.Chevrons,scientistssay,notonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealanespeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents.6.ThepassagemainlydiscussesA.anewwayofhighwayspeedcontrol2B.anewpatternforpaintinghighwaysC.anewapproachtotrainingdriversD.anewtypeofopticalillusion7.OnroadspaintedwithchevronsdriverstendtofeelthatA.theyshouldavoidspeed–relatedhazardsB.theyaredrivinginthewronglaneC.theyshouldslowdowntheirspeedD,theyareapproachingthespeedlimit8.Theadvantageofchevronsoverstraight,horizontalbarsisthattheformerA.cankeepdriversawakeB.cancutroadaccidentsinhalfC.willhavealongereffectondriversD.willlookmoreattractive9.TheAmericanAssociationFoundationforTrafficSafetyplanstoA.tryouttheJapanesemethodincertainareasB.changetheroadsighsacrossthecountryC.replacestraight,horizontalbarswithchevronsD.repeattheJapaneseroadpatterns10.Whatdoestheauthorsayaboutstraight,horizontalbarspaintedacrossroads?A.TheyarefallingoutofuseintheUnitedStates.B.Theytendtobeignoredbydriversinashortperiodoftime.C.Theyareapplicableonlyonbroadroads.D.Theycannotbeappliedsuccessfullytotrafficcircles.I、单项选择题Choosethebestanswerfromthechoicesgiven:1.Tothedinnerpartyallher__________wereinvited.[]a.relationb.relationsc.arelationd.therelations2.Hisill-healthmaywellbe__________malnutrition.[]a.duetob.nexttoc.thankstod.upto3.Whyisthere_______trafficonthestreetsinFebruarythaninMay.[]a.fewerb.fewc.littled.less4.__________friendsusuallyspeakhighlyofhim.[]a.Hissomeb.Hismanyc.Manyhisd.Somehis5.Theshipwassunkbyacollision;but________divingapparatusthecargowa