Unit+4+Natural+Disasters+Project+學習任務單 高一英語人教版（2019）必修第一冊

學習任務單

課程基本信息學科英語年級高一學期秋季課題UNIT4NATURALDISASTERS*Project:Giveapresentationonnaturaldisasters教科書書名：高中英語必修第一冊出版社：人民教育出版社出版日期：2022年6月學習目標Afterthisclass,youwillbeableto:1.activatetheknowledgeabouttheearthquakeinthisunit,especiallythestructureofthetext,thefunctionoffiguresandfigureofspeech.2.figureoutthecauses,possibleeffectsandsafetymeasuresofanaturaldisastertocreateaplantoprepareforanaturaldisaster.3.giveapresentationofanaturaldisasterbasedonthestepsofBrainstorm-Research-Organise-Present.4.connectstudents’cognitionandawarenessofreducingmortalitybymakingthepresentation.課前學習任務PrepareanA4sheet,andyouaregoingtomakeapresentationonit.Reviewthestructureandthelanguagecharacteristicsofapresentation(Page50TheNighttheEarthdidn’tSleep).(1)Apresentationmayinclude___________________________________________________________________________________________________________________________________.(2)Thelanguagecharacteristicsofapresentationareasfollows:_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.3.Readthefollowingintroductionsofsomenaturaldisastersandlearnsomerelativeexpressions.WhatisaNaturalDisaster?Anaturaldisasterisaneventwithanatural,asopposedtohuman,causethatresultsinlarge-scalelossoflifeordamagetoproperty.Itcouldberelatedtoweather,geology,biologyorevenfactorsoutsidetheEarth.Examplesareearthquakes,hurricanes,droughtsandflooding.WeatherandClimateTheplanet’sweatherproducesdisastersonafairlyregularbasis.Hurricanesareamongthemostprominentnaturaldisasters,occurringquitefrequentlyinthewarmerpartsoftheworld.Theybeginaslow-pressureareasoverwarmoceansandgrowintogiantstorms,hundredsofmilesindiameter,thatpersistforseveraldays.Theirpathsarefairlypredictable,whichgivesforewarningtoareaslikelytobeaffected.Evenso,theycancausesubstantiallossoflifeandmillionsofdollarsofdamage.Tornadoescovermuchsmallerareasandmayonlylastforafewminutes,butduringthattimetheycancausedevastation,duetotheextremelyhighwindspeeds.Intheworstcategoryof

tornado,thewindscanreach300mph(482.8km/h).Thisisenoughtocompletelydestroybrickbuildingsandhurlautomobilesthroughtheair.Muchlessspectacular,butmuchdeadlier,aredroughts.Manypeoplelivingindrierpartsoftheworldoftenrelyonseasonalrainfalltogrowcrops.Fromtimetotime,however,therainsfailtoarrive.Prolonged(持續(xù)的)lackofrainfallleadstocropfailure,starvationandmalnutrition(營養(yǎng)不良),claimingmillionsoflivesinsomecases.Excessiverainfallcancauseflooding,whichmayresultinlargenumbersofpeoplelosingtheirhomes,cropsbeingruinedorriversburstingtheirbanksandcausingdeathanddestruction.Floodingoftenresultsfromtheheavyrainthataccompanieshurricanes,compoundingthedamage.Prolongedheavyraincanalsocausedisastrouslandslidesandmudslides.GeologicalDisastersEarthquakesareamongthemostdestructivenaturaldisasters.Theyoccuratornearfault(斷層)lines:cracksintheEarth’scrust(地殼)thatmarktheboundarybetweentwodifferentsections.Whenthesesectionsmoverelativetooneanother,theresultingvibration(震動)producesanearthquake.Althougholdfaultlinescanoccasionallyproducesmallearthquakes,themostdestructiveonesoccuringeologicallyactiveareas,neartheboundariesofcontinentalplates.Whenanearthquakehappensundertheocean,itmayproduceatsunami,orhugewave,thattravelsrapidlyoutwardsfromitssource.Atsunamicancausemassivedestructiontocoastlineshundredsofmilesaway.Theseenormouswavescanalsobeproducedbylandslides.Volcanoesarerelatedtoearthquakesinthattheyoccuringeologicallyactivezonesaroundplateboundaries.Intheseareas,magma,underpressure,isclosetothesurfaceandcaneruptaslava.Muchofthedeathanddestructionfromthiskindofnaturaldisasterresultsfromvolcanicash,whichcanfilltheair,makingbreathingimpossible,andaccumulateonrooftops,causingbuildingstocollapseundertheweight.Pyroclasticflowisanothermajorhazard(危險)associatedwithsomevolcaniceruptions.Thisconsistsofamixtureofhotgas,ashandrockfragmentsracingathighspeedfromthesourceoftheeruptionanddestroyingeverythinginitspath.課上學習任務【學習任務一】Sortingoutnaturaldisasters

Lookatthepicturesandanswerthequestions:Whatnaturaldisastersarethey?Howmanytypesofnaturaldisastersarethere?___________________________________________________________________________________________________________________________________________________________.【學習任務二】Brainstormingatopic

Chooseearthquakeasanexampleandbrainstormanswerstothequestions.UnderstandthedisasterArethereanyknowncausesofthedisaster?Whatcanbedonetopreventit?PrepareforthedisasterWhatarethepossibleeffectsofthedisaster?Whatcanbedonetoprepareforit?IntheeventofadisasterWhatcanyoudotostaysafeduringthedisaster?Whatkindofhelpdosurvivorsneed?【學習任務三】ResearchingmoreinformationWatchavideoandtakenotes.___________________________________________________________________________________________________________________________________________________________.

【學習任務四】OrganisingthepresentationWhatkindsofinformationwouldyouliketoreportinyourproject?_____________________________________________________________________________.Whatcanmakeyourpresentationmoreattractiveandmorebelievable?_________________