北京市第四中學(xué)人教版高中英語導(dǎo)學(xué)案UnitEarthquakes語言應(yīng)用

學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精Unit4Earthquakes——語言應(yīng)用北京四中孫玲Naturaldisasters（catastrophe)e。g.earthquake,drought，flood，forestfire，hurricane，landslide，tsunami,typhoon,volcaniceruption，tornado,blizzard,avalanche[?v?l?nt?]，thunderstorm，wildfire，hailstormSafetyTipsforLightningSincelightningcanbeverydangerousandithaskilledandmaimed（使殘疾)manypeople,itisimportantforustofollowsafetymeasuresandprotectourselvesandproperty.Duringastormstayindoors,howeverifyouarecaughtoutsideinaseverestorm，neverstandunderanytallobjectssuchastrees。Itisbettertolaydowninanopenfieldawayfromanysurroundingtallobjects。Avoidanylargebodiesofwaterandifyouareswimming，leavethewaterimmediately。Stayawayfrommetalobjectssuchasbicyclesandtractors.Neverplaygolforgofishingduringastorm.Ifyouareoutsideplayinganygameswithmetalgear(齒輪)，besuretotakeitoffifastormstarts。Ifyouaredrivingacarduringathunderstormstayinthecarasthisisasafeplace，howeveravoidtouchinganymetalinthecar。Donotusethetelephonesincelightningmightstrikethetalltelephonepoles.Avoidusinganyelectricalequipmentsuchashairdriers，electricrazors，microwaveovens，orwashersetcetera.Today,mosttallbuildingsareprotectedbylightningrods(避雷針）.ThisconceptwasfirstintroducedbyBenjaminFranklinin1749.Thesearemetalrodswhichareplacedontopofthehighest，mostexposedpartofthebuilding。Awireleadsfromtherodandisburiedundergroundawayfromthebuilding.Thisattractsthelightningandconducts（引領(lǐng)）itsdischarge（放電）awayfromthebuildingandintotheground.SafetyTipsfortornadoesThereareanumberofwaystoprotectyourselffromthedeadlyeffectsoftornadoes。Ifyoueverfindyourselfinthevicinitysurroundingatornado,thebestthingtodoistogetintoashelterthatisequippedwithastormcellar(地下室)。Ifyoudon’thaveashelterdesignedtowithstand(承受）tornadoes，thengointoyourbasement。Donotstandnearanywindows，astheyareprone(易于…）toblowoutduetothedrastic（猛烈的)dropinpressure.Ifyoucannotreachthebasementintime,findaclosetorbathroomonthelowestfloorpossible。Toiletsandbathtubsareusuallyanchoredintotheground，andthusareusuallytheonlythingsleftintactafteratornadohits。Ifyouareinsideaschooloranyotherlargebuilding,donotstandunderanareawithaverylargeroofsuchasagymnasium，becausetheyarethemostlikelytocrumble（崩潰)firstduetothehighwindspeeds。Trytoavoidhallwaysthathavedoorwaysleadingoutsidethebuilding。Ifyouareoutside,findcoverunderanoverpass（天橋）。Aditch（溝）isalsoagoodchoiceifitisnotraining.Ifthereisrain，thenyouneedtowatchoutforflashfloodsanddrowning。Alwayscrouchdownandmakeyourselfasmall“target”.Ifyouareinacar，donottrytodriveawayfromthetornado，becauseyoumightactuallybedrivingtowardit.Numerouspeoplehavediedincarsbecausetornadoeshavethrownthecarsortoppled（推翻)themover.Ifyouliveinamobilehome，youshouldvacate（空出）itimmediately，foritoffersvirtuallynoprotectionatall。Thetornadocanpickituplikeatoyandhurl（猛投)itmilesfromitsoriginalspace.Ofcourse，therearetheusualchores（雜事）youcandowhenanylargestormisapproaching,suchasstockinguponcannedfood,freshwater，andbatteriesforradiosandflashlights。Butprobablythebestprecautiontoavoidgettinghurtbyatornadoistobealertandfollowinstructions。Manypeoplegethurtbytornadoesbecausetheyarenotinformedaboutsevereweatherconditionsinthearea，solisteningtoweatherforecastsareimportant.Youshouldhaveatleastonebatteryoperatedradiobecauseofthepossibilityofapowerfailure。SafetyTipsforatsunami1）Findoutifyourhomeisinadangerarea.

Knowtheheightofyourstreetabovesealevelandthedistanceofyourstreetfromthecoast。

Befamiliarwiththetsunamiwarningsigns。

Peoplelivingalongthecoastshouldtakeearthquakesunderconsiderationasawarningsignalofacomingtsunami。Ariseorfallincoastalwatersisasignthatatsunamiisapproachingthecoast.2）Makeevacuationplans。

Pickaninlandlocationthatiselevatedtoahighlevel。Afteranaturaldisasterstrikes,roadsmaybeblockedoff.Itisessentialtopickmorethanoneevacuationroute。

Teachfamilymembershowandwhentoturnoffgas，electricity，andwater.

Teachchildrenhowandwhentocall9-1—1andwhichradiostationtolistenforinformation.3）Havedisastersuppliesonhand.

FlashlightPortable，battery-operatedradioFirstaidkitEmergencyfoodandwaterEssentialmedicinesDevelopanemergencycommunicationplan。4)Incasefamilymembersareseparatedf