Unit4EarthquakesObjectives1.Toknowthevariouskindsofnaturaldisastersandunderstandthedangerspeoplefaceinaquake.2.Toknowthebasicknowledgeofearthquakesandlearntohowtoprotectoneselfandhelpothersinearthquakes.Wordsandexpressionsreviewearthquakequakerightawaywelldisasterburstinruinsinjuren.地震n.地震立刻；马上n.井n.灾难；灾祸vi.爆裂；爆发n.突然破裂严重受损；破败不堪vt.损害；伤害Wordsandexpressionsreviewdestroyshockrescueelectricitytrapdamagequakerightawaywelldisasterburstinruinsinjurevt.破坏；毁坏；消灭vt.震惊；震动n.打击；震惊n.＆vt.援救；营救n.电；电流；电学vt.使陷入困境n.陷阱；困境n＆vt.损失；伤害Whatdoyouthinkofwhenyouseethedata?WenchuanEarthquakeIt’sTangshanEarthquakehappenedin1976.fireWhatotherdisastersdoyouknow?Lookatthepicturesbelowandnamethesedisastersifyouknow.volcanoeruptionsnowslidelandslidesandstormfloodWhichdisastermaycausetheworstdamage?Theearthquake.Howmuchdoyouknowabouttheearthquake?Whatisanearthquake?Anearthquakeiswhathappenswhentwoplates(板块)oftheearthsuddenlyslippastoneanother.Buildingsfalldown.Whathappenswhenthere’sanearthquake?Roads,bridgesandrailwaysaredestroyed.Manythingslieinruins.Thesupplyofelectricityandwateriscutoff.Manypeoplearekilledorinjured.Morepeoplelosetheirhomes.WhathappenedonMay12th,2008?AterribleearthquakestruckSichuan,ChinaonMay12,2008.Morethan60,000peoplelosttheirlives.Doyouknowsomeotherseriousearthquakesthathappenedbefore?TangshanTangshan,HebeiJuly28,1976唐山抗震纪念碑广场唐山大地震三十周年后的新唐山SanFrancisco,USAApril18th,1906Whatstrangethingsdoyouthinkmayhappenbeforeanearthquake?wellmicepond---Thereisoftenagreatsound.---Animalstoonervoustoeat.---Therearebrightlightsinthesky.---Asmellygasmaycomeoutofthewell.---Waterpipesmaycrackorburst.StrangethingsbeforeanearthquakeDiscussionWhatshouldwedotoprotectourselvesifanearthquakehappened?※Don’tbenervousandkeepcalm.※Don’ttrytorunoutoftheclassroom.※Protectyourheadbyputtingyourbagonyourhead.※Squatorsitdownunderyourdesk.※Leavetheclassroomaftertheearthquake.Imagineyourhomebeginstoshakeandyoumustleaveitrightaway.Youhavetimetotakeonlyonething.Whatwillyoutake?Why?DiscussionNaturaldisastersoccurthroughouttheworld,andChinahasaparticularproblemwithearthquakes.Tangshanearthquakein1976isacaseinpoint.Soitisimportanttotakestepstoreducethedamagecausedbyquakes.Here,Iwishtoexpressmythankstotheworkersandthesoldierswhoworkeddayafterdaywithoutresttohelpthosewhoneededitduringtheterribledisasters.SummaryHomework1.LookupthenewwordsandexpressionsoftheReadinginthedictionary.2.PreviewtheReading:ANIGHTTHEEARTHDIDN’TSLEEP
