(吉林省实验中学2007届高三第四次模拟考试B篇)

Manydeathsfromhomefiresaretheresultofburnsandpanicbutmostarecausedbydeadlysmokeandgases.Thesefatalfiresareoftencausedbysuchcarelessactsasthrowingawayalightedmatchorcigaretteallowingrubbishtopileupoverloadingelectricalwiresormisuseofhealingandcookingequipment.

Fewfamiliesgotobedatnightwithoutfirstcheckingtomakesurethatthedoorsandwindowsarelockedbuttheyoverlookaverybasicfiresafetyrule.Thisrulestatesthatpeopleshouldsleepwiththeirbedroomdoorsclosed.Nighttimefiresaremostseriousbecausethefamilyisasleepandthediscoveryoffireisusuallytoolate.

Aclosedbedroomdoorgivesextraprotectedbydelayingthegasesandfirethusgivingthefamilyafewminutestoescape.

Atthefirstsightoffireinahomeitisnecessaryforeveryonetogetoutofthehouseespeciallychildrenandelderlypersonswhomayneedhelp.Noteveryonefleesquicklyfromaburninghome.Childrenoftenpanicandhideinclosetsorunderbeds.Beingpreparedorknowingwhattodoincasefirebreaksoutcanmeanthedifferencebetweenlifeanddeath.Allmembersofthefamilyshouldknowcertainbasicsteps.

Everyoneshouldknowanescaperouteandsecondroutefromeachroominthehouse.Veryyoungchildrenandoldpersonsshouldreceivecarefulthoughtwhenmappingoutfamilyescapeplans.Bothgroupswillneedspecialhelpinescapingfromhomefires.Afamilyshoulddetermineawayinwhichanymemberscansoundanalarm.Itislikelythatfiremayblockhallwaysandpreventapersonfromreachingotherbedrooms:Familymembersshouldbetaughtnottowastetimegettingdressedorcollectingvaluablepossessions.Speedisnecessaryinescapingfromfire.

45．Mostdeathsfromfirearecausedby .

A．burns B．fright C．smoke D．panic

46．Duringafirechildrenoften .

A．panic B．jumpfromwindows

C．cry D．knowcertainsteps

47．Themostseriousfireshappenduring .

A．theafternoon B．themorning C．t