小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com课时作业(四)Unit2SectionⅠWelcometotheunit&ReadingⅠ.阅读理解AWhatisthegreatestthreattomankind?Maybedifferentpeoplecomeupwithdifferentanswers.However,thereisnodenyingthefactthattheonlythreattohumankind,apartfromhumankinditself,is,withoutanydoubt,thenature.Naturaldisastersaretheresultofnaturalenvironmentalprocessesthathaveadamagingeffectonpeople.Naturaldisasterscancomeinmanyforms:suchasgeologicaleventslikeearthquakes,tsunamisormudrockflows,climaticeventslikestorms,hurricanesortornadoesandfireeventslikeforestfiresandwildfires.Thedamagedonebynaturaldisastersismainlyasaresultofourinabilitytopredictexactlywhentheywillhappen.Althoughgreatprogresshasbeenmadeindesigninganddevelopingforecastingmodelsforsomenaturaldisasters,completecertaintyisstillimpossible.Eventobepessimistic,thereisapossibilitythathumanbeingswillneverachieveaccuratepredictionofthehappeningofallnaturaldisasters.What'smore,eventhoughweareabletopredictthesedisastersfromnature,preventingthemisequallyimpossible.Soweonlyhavetwowaystobothpreventinjuriesordeathsandreduceeconomiclossestotheleast.Thesetwomethodsaretopreparebeforeanaturaldisastercomestohit,andtomanagethenecessaryresourcesandpublicservicesafteranaturaldisasterstrikes.Thesetwothingshavealwaysbeenattheleadingpositionoftheprojectsofbothnationalgovernmentsandinternationalorganizations.IntheUnitedStates,theFederalEmergencyManagementAgency(FEMA)isresponsibleforthe“preparedness,responseandrecoveryplanning”ofbothmanmadeandnaturaldisasters.Mostnaturaldisasterscannotbeprevented,andbothemergencypreparationandgooddisastermanagementarethebestwaystodealwiththem.Althoughnaturaleventsmayappeartoservenopurposebutsimplytopunishanddestroy,naturaldisasters,aperfectsymbolofthegreatpowerofthenature,aredisplayofourplanet'sevolutionanditsstateofchange.1．Accordingtothepassage,bothhumankindandnature________．A．canbemanagedorderlyB．canthreatenhumanbeingsC．arehardtocontrolD．havealargefamily2．Whichcan'tberegardedasasimilaritybetweentornadoesandearthquakes?A．Theycannotbeprevented.B．Theyarebothgeologicalevents.C．Theyareboththeresultofnaturalenvironmentalprocesses.D．Theycausedamagetopeople.3．Whydonaturaldisasterscausesomuchdamage?A．Itisverydifficulttopredictwhenexactlytheywillhappen.B．Ourforecastingequipmentistoooldformanynaturaldisasters.C．Wedon'tdoenoughpreparationbeforenaturaldisastersstrike.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comD．Wedon'thavethenecessarypublicservicestouseafternaturaldisastersstrike.4．Whatcanbeconcludedfromthepassage?A．Naturaldisasterscannotbepredictedatall.B．Humanbeingsarepessimisticaboutthefuture.C．Beingwellpreparedcanavoideconomiclosses.D．Goodpreparationanddisastermanagementareadvisable.BAlmosteveryonehasheardtheexpression,“thecalmbeforethestorm”.Itisusuallyusedtodescribeapeacefulperiodjustbeforeaverystressfulsituationoratenseargument.Britishsailorscoinedthephrase.Theynotedthatbeforecertainstormstheseaswouldseemtobecomestatic(静止的)andthewindswoulddrop.Butwhyisitoftensocalmbeforeastorm?AccordingtotheUSwebsiteHowStuffWorks,acalmperiodoccursbecausemanystorms,tornadoesandhurricanesdrawinallthewarmandwetairfromthesurroundingarea.Astheairrisesintothestormclouds,itcoolsanda...