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1、Unit11TheStoryofanEyewitnessKeytotheExercisesTextcomprehensionI.Decidewhichofthefollowingbeststatestheauthor'spurposeofwriting.BII.Judge,accordingtothetext,whetherthefollowingstatementsaretrueorfalse.1.T(RefertoParagraph1:Theearthquakebroughtaboutalo
2、ssofthousandsofdollarsworthofhousingwhiletheconflagrationburneduphundredsofmillionsofdollarsworthofproperty.)2.T(RefertoParagraph1,inwhichitissaidthat"Thereisnoestimatingwithinhundredsofmillionstheactualdamagewrought,"meaningthatitisimpossibletoestim
3、atetheactualdamagewithinhundredsofmillionsofdollars.)3.F(RefertoParagraph6,whereitisindicatedthatthepurposeofman'sdynamitingthecitywastopreventtheadvancementofthefuriousfireratherthanmaliciouslydestroythecity.)4.F(RefertoParagraph6,whereitisshownthat
4、organizedfirefightersmadeeffortstocombattheflames.)5.F(RefertoParagraphs11?2,whichtellusthatthemenbroketheirheartovertheirtrunksbecausetheywerecompelledtoabandontheirtrunks,whichcontainedtheirfamilytreasuresandwhichtheyhadbeendraggingalongwithgreatdi
5、fficultyforadozenhours.)6.T(RefertoParagraphs13?4,whichshowthattwentyhoursaftertheearthquake,milesandmilesofmagnificentbuildingsandskyscrapersstillstoodintact.)III.Answerthefollowingquestions.1.RefertoParagraph4.Theyrefertotheshrewdman-madeconvenienc
6、esoflifeandsafeguardsinSanFranciscosuchasthestreets,thesteelrails,thetelephoneandtelegraphsystems.2.RefertoParagraph5.No.Awayfromtheburningcity,itwasdeadcalm.Insideit,however,theflameswerebecomingmoreandmorerampantandtheheatedairbecamelighterandlight
7、erandrosecontinuously.Thusadiscrepancyofairpressurewasformed.Consequently,underthehigherpressurefromoutside,airwaspouringinuponthecitywheretheatmosphericpressurewaslower.3.RefertoParagraph6.Itwasveryhardorevenimpossibleformantohalttheadvancementofthe
8、flames.Hiseffortstocombattheconflagrationturnedouttobeuseless.4.RefertoParagraph7.Astheauthorseesit,itwillbeimpossibletoknowtheexactnumberofthevictimsoftheearthquakebecausealltheirtraceshavebeenerasedbytheflames.5.RefertoParagraph11,whichtellsusthato
