Unit3本套试卷共120分。考试时间100分钟。Ⅰ.阅读理解(共两节;满分40分)第一节(共15小题;每小题2分,满分30分)AAroundtwentyyearsagoIwasgoingthroughhardtimes.Icouldnotfindasatisfyingjob.Tomyshame,Ihadtodriveaschoolbustomakeendsmeetandlivedinafriend'shouse.Oneafternoon,whiledrivingthroughaquietsuburban(郊外的)neighbourhoodIwassosadthatIkeptaskingmyself,“Whyhasmylifebecomesohard?”“What'swrongwiththeworld?”ThenIpulledoverthebustodropoff(让……下车)alittlegirlandasshepassedshehandedmeaprettyearring,sayingshefounditonthefloorofthebusandIshouldkeepitincase(以防)theownercametolookforit.Intheevening,theownerdidcometolookforherearring.WhenIhandedittoher,shegotveryexcitedandcontinuedsaying,“Thanks,you'rearealgentleman.”Itoldherthatsheshouldthankthelittlegirlwhohadfoundit.Shesaid,“Yes,andyouareagooddriver,too.Whatalovelyworlditis!”Thensheleftwithsatisfaction.Iwastouchedbyherlastwords.Ihadthoughtsomethingwaswrongwiththeworldjustbecauseofmypoorcondition.Infact,nothingwaswrongwiththeworld.Ishouldchangemyattitudetowardslife.Ishouldbepositiveaboutlife.Atfirstitwashard,andthenitgoteasier.EverydayIcouldfindthingstomakemehappy.Thenonenighttherewasaphonecallformeatmyfriend'shousefromaladywhowasamanagerinalargehospital.ShesaidshehadreadmyapplicationformandaskedmeifIwouldliketoworkinthehospital.Isaidyesandgotthejob.Lookingbackattheexperience,Iknowthemostimportantistohaveapositiveattitudetowardslife.21.Whatdoweknowfromthesecondparagraph?A.Theauthorcriedwhiledrivingthatafternoon.B.Agirlpickedupanearringbeforegettingoff.C.Therewasonlyonepassengeronthebus.D.Thegirlgavetheauthoranearringasagift.22.Theauthordecidedtohaveachangeinlifebecause________.A.whattheearringownersaidmovedhimB.hedidn'twanttobeadriveranymoreC.hisfriendshelpedhimbecomepositiveD.hewasofferedabetterjobinahospital23.Howdidtheauthorfeelwhengettingacallfromthemanagerofthehospital?A.Surprised.B.Disappointed.C.Shocked.D.Delighted.24.Whatdoestheauthorwanttoshowinthispassage?A.Lostthingsshouldbereturnedtotheowner.B.Lifeisusuallyhardfortheyoungatthebeginning.C.Oneshouldholdapositiveattitudetowardslife.D.Itisnoteasytofindagoodjobnowadays.BLatethatafternoonItookthetrainbacktoSydney.ThereIfoundanothersurprisewaitingforme.Myroomhadbeengiventosomebodyelseandtheyhadnoroomforme.Harkinhadknownmytravelplansandhadarrangedeverything.Howcouldhehavebookedtheroomonlyforthreedays?Therewasnothingtobedonebuttofindanotherhotel.Thewaiterswerehappytofindmeanewhotel,andwhenIsaidthatIwashappytostayattheAirport,thinkingitmightbecheaperthanstayinginthecity,theysuggestedtheHolidayInnattheairport.Therewasonesmallmatter:theroomratewas$300pernight.ThebesthotelinKatoombawantedonly$145.Iaskediftherewasanythingcheapertheymightsuggestbuttheywarnedthatmosthotelswouldalreadybefullbythistime.Thehotelwasfarfromthetrainstation,soI'dbesttakeataxi,at$25.OnthewaytotheHolidayInn,wepassedahoteljusttwoblocksfromtheHolidayInnthatadvertisedaroomrateof$104.AtthedeskIaskediftheirroomratecouldgodownalot.“No,thisisa4starhotel,”thewaitertoldme.“Inthatcase,”Ireplied,“I'lljustwalkthetwoblockstothecheaphotel.”ButshewarnedmethattheywereprobablyfullandthatifIdidn'ttaketheroom,itmightnotbeavailablewhenIcameback.Finally,Idecidedtotaketheroom.Theroomitselfwasbig,buttheairconditioningcouldn'tkeepupwiththeAustralianheat.Icouldn'tgettosleepuntilabout1:00am.25.Whydidthewriterhavetolookforanotherhotel?A.Hedidn'tbookearly.B.Harkinmadeamistake.C.Hewasshortofmoney.D.Hewasn'twellreceived.26.HowdidthewriterfeelwhenhearingtheroomrateattheHolidayInn?A.Nervous.B.Happy.C.Surprised.D.Relaxed.27.WhydidthewritertakearoomintheHolidayInnfinally?A.It'sa4starhotel.B.It'saroundthestation.C.Itwasmidnightthen.D.Theroomwasingreatdemand.28.Whatwastheweatherlikeatthatmoment?A.Cool.B.Warm.C.Cold.D.Hot.CTheskiesarerainingbigblocksofice,andexpertsaretryingtolearnwhat’sgoingon.Forthesecondtimeinsixdays,Californiawasattackedbyiceballs.ThelastesthappenedonearlyThursday.AlargeblockoficedroppedintoLomaLinda,California.Theicecrashedthroughthemetalroofofafitnesscenter,leavingaholeupto2feetwide.Noonewashurt.TwotennisplayerswereplayingoutsidetheDraysonCenteronThursdaymorning.Suddenlytheyheardastrangesound,saidCrawford,anofficialoftheLomaLindaFireDepartment.AsimilareventhappenedlastSaturdayinOakland,California.EarlyinthemorninganiceballdroppedintoafeldatBushrodParkandmadeupaholeupto2feetwide.Luckily,nooneintheparkwasinjured.Onetheoryistheicewasdroppedfromplanes.Burthere’slittledirectsupportforthat.Afewexpertshavesuggestedtheremaybeothercausesofsimilaricefalls,perhapsevenglobalwarming.Storiesaboutdroppingicegobackforcenturies.Theydidn’tbegintoreceiveseriousscientificattentionuntilafewyearsago,however,whenSpainwasattackedbyadozenlargeiceballsin2000.ScientistJesusMartinez-FriasinMadridandhisteamhavecollectedreportsoffortycasesaroundtheworldsince1999ofpuzzlingfallingice.Hethinkstheiceformsintheairbyaprocesssimilartotheformationofhail(冰窖)insidestormsbutwithoutastorm.Martinez-Friasbelievesglobalwarmingiscausingthetroposphere(对流层)torise.Thismeanstheroofofthetroposphereisforcedtoagreaterheight,whereitcoolsmorethannormal.Thus,thetempe