《大学英语II》期末预测试卷No.1(附答案

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1、重庆交通学院《大学英语II》期末预测试卷No.1PartIListeningComprehension(20%)(略)PartIIReadingComprehension(40%)Directions:Therearefourreadingpassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefoursuggestedanswersmarkedA),B),C)andD).Choosetheb

2、estanswertoeachquestion.ThenyoushouldmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.Passage1Questions21to25arebasedonthefollowingpassage:Firefightersknowhowfiresbehave,justassoldiersknowhowanenemywillprobablyfight.Firegoeswhereveritcan,butitp

3、referstofollowadraft.Opendoorscanprovideenoughdraftsothatafirecanrunwild.Thatiswhyitisimportanttoclosedoorsonafire.Fireneedsair.Italsoneedsacertainhightemperatureinordertoburn.Thatiswhywaterhasalwaysbeenthemainweaponagainstfire.Watercoolsmaterialbelowitsburningpoint.It

4、alsocutsoffthefire’sairsupply.Butwaterwillnotputoutanoilfire.Oilseparatesitselffromwaterandgoesonburning.Firefightershavetosmotheroilfireswithablanketofpowderorfoam.Theyhavespecialfireextinguishersthatspreadchemicalstokeepairfromthefire,sothatitdies.Electricalfirealson

5、eedsfireextinguishers,butthesmotheringagentmustbeanon-conductor-thatis,amaterialthatwillnotconductelectricity.Ahomeownercangethurttryingtousethewrongkindofextinguisheronanelectricalfire.Everyhomeshouldhaveafireextinguisher.Itwillnothelpifafirehasagoodstart,butitcouldst

6、opasmallfire.Nountrainedpersonshouldtrytoputoutafirelargerthanoneinawastebasket.Homefirefightingislikefirstaid.Itmayhelpinthefirstsecondsofanemergency,butitcannotreplacefirefighters.Soitisveryimportanttosoundanalarmwhenthefireisstillsmall.Whenafirefighteriskilled,itisu

7、suallybecausethefirehasbeenburningalongtime,causingawalltocollapsewhilethefireisbeingfought.Paniccausesmanyfiredeathsincrowdedplaces.Frightenedpeoplemakearushforadoorandpileupagainstit,sothatnoonecangetout.Thisdoesnothappenifeveryonestayscalm.Keepingyourhead,insteadofc

8、rowdingandpushingtogettoanexit,maymakethedifferencebetweenlifeanddeathwhenfirebreaksout.21.Themainideaofthispassageis