新编英语教程5Unit2教案.doc

该【新编英语教程5Unit2教案 】是由【莫比乌斯】上传分享，文档一共【7】页，该文档可以免费在线阅读，需要了解更多关于【新编英语教程5Unit2教案 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。UnitTwoTEXT1BEWARETHEDIRTYSEASGeoffreyLeanObjectives:,or,-classworkUseyourownwordstorephrasethedifficultsentencesinLW7,..&Devl.,andfindoutwhilepreviewingthetextthethesis(),thecausesandconsequencesofpollution(-15),thegeographic,anddemographicfactorsthatcontributetotheseverityofthecase(-20),andatlast,thesolutiontothepollutionproblem(,22).In-readinginterpretationStepone:Useyourownwordstorephrasethefollowingdifficultsentences,withoutchangingitsoriginalmeaning:(LW7),whichnurturedsomanycivilizations,isgravelyill-=furtherthedevelopmentof,careofill=here,pollutedfallvictimto=evictimofabilities=development,civilizationattitudes=irresponsiblementality:pourindustrialpoison,sluiceuntreatedsewageevolve=developgradually(byalongcontinuousprocess)WhathappensisthattheM,thecradleofmanyancientcultures,.---?(-1)TheMhasmadepositivecontributionstothedevelopmentandprosperityofthecountriesalongitsshoresbuttheeffectproducedbytheindustrializationandmodernizationofthesecountriesontheMhasbeennegative-,mostcitiesjustdropitinstraightoffthebeach;,whiletheplacessuchasCannesandTelAvivdisposeoftheirwastesthroughapipestretchingoutonlyhalfamilefromtheshore,-,andeventhemostmodernrarelyhasproperwaste-,fewofwhich,includingthemostsophisticated,?Inwhichlinedoesthewriterstatehisthesis?TheMisseriouslypolluted.(,)Theseverityofthepollutionis:Mhasonly1%oftheworld’sseasurface,butcarriesmorethanhalftheoilandtarfloatingonthewaters.()?CAUSES:sewage(-10),industrialpoison(-13),untreatedpesticides,detergents,fertilizers,andplankton(),oil()EFFECTS:Thegeneraleffectsofthepollution-,andthepollutionharmsnotonlythelifeofthesea,,.(,4)Sewageinparticular(-10)1Whatarethecountriesorcitiesthattreattheirsewagerelativelyproperly?-2),()andGreece-oneofthecleanercountriesofthenorthernshore.(Eventhoughlessthan1/40ofthecoastalpeopleofGreecehavetheirsewageproperlytreated,theyarenotdoingtoobadly.)(-3)()2Whatarethecountriesorcitiesthattreattheirsewageimproperly?Mostofthe120coastalcitiesdropthesewagedirectlyalongthebeach,rarelyhalfamileoffshore.()OthercountriesonthenorthernshorearecausingmoreseriouspollutiontotheseathanGreece.()Israeli/LebanoncoastandBarcelona/Genoacoastflushoutover200tonsofsewageeachyearforeverymileoftheircoastlength.()Whatistheharmfuleffectofthepollutioncausedbysewage?---Harmfultoswimmers:Theswimmersaremorelikelytogetsomesortofdiseasebecausethewaterscarrybacteria.()’sestimate,1/7chance,%ofswimmersintheMwillgetsomesortofdisease.(-4)---Harmfultosealife:Becauseofthetremendoussewage,sealifeisbadlyaffected,ordeliciousseafoodcarriesviciousdiseasesofthearea.(,10)seductive=-5)Howaretheshellfishgrowinginunpollutedwatersaffectedwhentheyaresoldinthemarket?Inordertokeepthemasfreshasbefore,theyareoftenputintothewater,’(-13)Showstatisticstodemonstratetheindustrialpollution:15,000factoriespolluteItalianLigurianriviera,60,000factoriespolluteTyrrhenianSeabetween…,76factoriespollutethelagoonofVenice;,detergents,fertilizers,planktonwithitchyslime()Howdothesefactorsdoharmstothesea?Pesticidesareblownoffthefieldsintothesea,detergentsarewashedoffthesinks,andfertilizersareflushedout,:-7)Oil()Figurestoshowthepollutionbyoil:350,000tons…,15,000tons…,4times…,40times….?(,17)---narrowandshallowoutletoftheStraitofGibraltar:Exceptforthe9-milewideStraitofGibraltar,theMislandlockedandtherefore,isunabletocleanseitself.()Remorseless:(lit.)withoutdeep,bitterregretforwrongdoing(here)itrefersthatpeopleareunregretfulforthepollutionoftheMtheyhaveproduced.---weakcoastalcurrentsandfeebletides:Coastalcurrentsandseatidesaretooweaktoremovepollutantsoffshore.()?---Peoplehavealwaysusedtheseafortheirwastes,orlong-standingpracticeofdumpingwastesintothesea()healthhazard:,butwhenitisdumpedintothesea,.---multiplicationofpopulation:Thepopulationgrowthissofastthatitishardforeventhebestwastetreatmentplantstocopewiththeworseningsituation.().(-9);theseaismuchmoreseriouslypollutedthanbeforewhenthepopulationwassmall.---Increasingnumberoftourists()SothesegeographicanddemographicfactorshavemadetheMmorevulnerabletopollutionthanotherseasintheworld.(-8)Solutiontotheproblemofpollution(,22):,?(-10)‘anuglynewfootprint’implyinthe1stparagraph?()?Itisgravelyfouledbyoil.(:foul,stain,blighted,coated,congealed,oldshoestoprotect,...)IfthisislandfaroutintheAtlanticispolluted,nearlyeveryotherislandispolluted,andthereisnolongeranescape.()Theairwillsoonnotbeclearwhenanairstripisbuilthere;thewaterisnotasblueandgreenasafewyearsago,itisdirtier;thelandwillbedespoiledastheotherpollutedareas.()Whatisthemaincauseandtheeffectsofthepollution?Technologyratherthanoverpopulation---reason:‘Mankind,...butitismorethan...perperson.’‘...notby...chokingtodeath.’‘Thetechnology...breathingtube.’()---:technology–sincemanisill-adaptedtohislivingenvironmentas,say,abird,hehastoresorttoartificialaids,whichhaveeventuallygivenrisetopollution,,automobiles,ships,etc.,-8:man’sinefficientphysicalfunctions–unabletocontroleitherhisbodywaste(papers,tincans,garbage)orhispopulation(populationexplosionbringsaboutpollution).:oil–:technologicalpollution-outboardmotors:thefoulingsmell,theloudsound,theslickingoil,...‘It’sstillearlyhere.’in4thpara.?Isitechoedorcontradictedwith‘…howlateitisalready’?Environmentalpollutionhereisjustbegun;‘…howlateitisalready’.Theauthor’smessageis‘Don’tyouthinkthatitwillbesometimebeforepollutiongetsreallyserioushere;whenthebeachisfoundtobefouled,itisalreadytoolatetokeeppollutionawayfromtheisland.’Analysis:CauseandEffectpatterns:thesingle-causeandmanyeffectspatternthemany-effectsandsingle-effectpatternways:-5,-1Post-:DiscussthepollutionoftheYangtzeRiver,LiRiver,orsomeotherpollutioninyourenvironment(thecauses,theeffects,andthesuggestedmeasures)byprovidingfactsandfigures(10mins.),whichisbettertolastthreetofiveminutes.(10mins.)Waterpollutionisamajorelementof20th-,lakes,rivers,andstreamsofphysical,chemical,andbiologicalsubstancesthatareeitherdirectlyharmfultolifeorthathavedangerousorharmfulsecondaryandlong-,industrialwaste,garbageandrefuse,andagriculturalfertilizers,pesticides,,hemicals,,suchasleadandmercury,,sewagetreatment,plants,andinstallationstokeepfertilizersandinsecticidesfromenteringthewater.