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发布时间：2023-10-25 09:40:42
精品文档V.ReadingComprehension(15%AItwas3.21a.m.whennine-year-oldGlennKreamerawoketothesmellofburning.Exceptforthecrackling（爆裂声）offlamessomewherebelowtherewasnotasoundinthetwo-storeyhouseatBaldwin,LongIsland.Withhisfatherawayonnightdutyatalocalfactory,Glennwasworriedaboutthesafetyofhismother,hissisterKaren,14andhis12-year-oldbrotherTodd.Herandownstairsthroughthesmoke-filledhousetopushandpullatKarenandTodduntiltheysatup.Thenhehelpedeachonthroughthehousetothesafetyofthegarden.There,hissisterandbrother,takingshortandquickbreathsandcoughing,collapsedonthelawn.Thenine-year-oldracedbackintothehouseandupstairstohismother'sroom.Hefounditimpossibletowakeherup.Mrs.Kreamer,avictimofthesmoke,wasunconscious,andtherewasnobodytohelpGlenncarryhertothegarden.Buttheboyremainedcalmand,asafiremansaidlater,"actedwithalltheself-controlofatrainedadult."Onthebedroomtelephone,luckilystillworking,Glenncalledhisfatherand,leavingMr.Kreamertotelephonethefirebrigadeandambulanceservice,gotonwiththetaskofsavinghismother.Firsthefilledabucketwithwaterfromthebathroomandthrewwateroverhismotherandherbed.Then,withawetclotharoundhisheadhewentbacktothegarden.Hecouldhearthefireenginecomingup,buthowwouldthefiremenfindhismotherinthesmoke-filledhousewhereflameshadalmostswallowedupthegroundfloor?Graspingfirmlyaballofstringfromthegarage,Glennracedbackintothehouseanddashedupstairstohismother'sroom.Tyingoneendofthestringtoherhandheranback,layingoutthestringashewent,throughthehallandbackoutintothegarden.MinuteslaterhewastellingfirechiefJohnCoughlan:"Thestringwillleadyoutomother."Mrs.Kreamerwascarriedtosafetyastheflameswerebreakingthroughherbedroomfloor.71．WhydidGlennrundownstairsfirst?A．Hewantedtofindoutwhatwashappening.B．Hewasworriedabouthismother'ssafety.精品文档
精品文档C．Hewantedtosavehissisterandbrother.D．Hewenttoseeifhisfatherhadcomeback.72．Whocalledthefirebrigadeandambulanceservice?A．Glenn.B．Glenn'sfather.C．Glenn'ssister.D．Glenn'sneighbor.73．WhatdidGlenndotoprotecthimself?A．Heputawetclotharoundhishead.B．Hethrewwateralloverhimself.C．Hehidhimselfinthebathroom.D．Herushedouttothelawn.74．Glennsavedhisfamilybecause__________.A．hisfatherhadtaughthimtodosoonthephoneB．hehadlearnedsomethingaboutfirstaidC．hehaddealtwiththeemergencycalmlyandwiselyD．hehadfollowedhismother'sinstructionBTherearethreeseparatesourcesofdangerinsupplyingenergybynuclearpower(原子能.First,theradioactivematerialmusttravelfromitsplaceofproductiontothepowerstation.Althoughthepowerstationsthemselvesarestronglybuilt,thecontainersusedforthetransportofthematerialsarenot.Normally,onlytwomethodsoftransportareinuse,namelyroadorrail,Unfortunately,bothofthesemayhaveaneffectonthegeneralpublic,sincetheyaresuretopassnear,oreventhrough,heavilypopulatedareas.Second,thereistheproblemofwaste.Allnuclearpowerstationsproducewastesthatinmostcaseswillremainradioactiveforthousandsofyears.Itisimpossibletomakethesewastesnonradioactive,andsotheymustbestoredinoneoftheinconvenientwaysthatscientistshaveinvented.Forexample,theymaybeburiedundertheground,ordroppedintodesertedmines,orsunkinthesea.However,thesemethodsdonotsolvetheproblem,sinceanearthquakecouldeasilybreakthecontainers.Third,theremayoccurthedangerofaleak(泄漏oranexplosionatthepowerstation.Aswiththeothertwodangers,thisisnotverylikely,soitdoesnotprovideaseriousobjectiontothenuclearprogram.However,itcanhappen.精品文档
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