新編英語(yǔ)教程4Unit8Antarctica新編英語(yǔ)教程4Unit8Antarctica新編英語(yǔ)教程4Unit8Antarctica資料僅供參考文件編號(hào)：2022年4月新編英語(yǔ)教程4Unit8Antarctica版本號(hào)：A修改號(hào)：1頁(yè)次：1.0審核：批準(zhǔn):發(fā)布日期：Unit8AntarcticaI.Lead-inActivities:1.DoyouknowAntarcticaHowdidyouknowitWhatkindofnewsaboutitareyouofteninformedthroughthemediaKeywords:continent,southernmost,expedition:ajourneytakenbyagroupofpeoplewithadefiniteobjective2.HowmuchdoyouknowaboutAntarctica

FeaturesofAntarctica:antarctica.map.docWhyAntarcticahasnotbeenconqueredbymansofarandhowourtenureofitisquestionableeventoday.Reasons:Greatisolationfromotherland;(ll.13-14)Notinhabitedbyhumans;(ll.18-19)Hardlyanyplantoranimallife;(ll.20-21)Verylittlerain;(para.5,ll.25-29)intensecold;(ll.15-16,ll.30-36)Howlingwind;(para.6)Nohumanchildeverbornthere(l.21)Themosttempestuousseasaroundit(l.14,lastpara)II.Details:1.WhatdosethewriterintendtotellthereaderaboutAntarcticabypresentingastrikingdescriptionofit

Useafewwordstodescribeitsmostdistinctiveappearace.

Heintendstoenfoldthe“mostspectacularnaturalphenomenon”onearth.Seenfromspace,itisahugeicesheetwhichradiateslightlikeagreatwhitelanternacrossthebottomoftheworld.2.WhydoyouthinkpeopleusedtoregardtheArcticandtheAntarcticasmuchalike?

Whatisthefactabouttheirsimilaritiesanddifferences?Sincebotharetheendsoftheearthaxisrespectivelyinthenorthandinthesouth,coveredwithavastandthicklayeroficeandsnow,Bothareextremelycoldallyearround.However,thefactisthattheirdifferencesoutweightheirsimilarities.(para.3)Asurveyoftheirdifferences:1)geographicalposition:TheArcticisclosely____(by)the___continentsofEurope,AmericaandAsia;whiletheAntarcticais__,separatedfromthenearestlandbyvast__ofthemost__seasonearth.(hemmedin/surrounded,populated,isolated,reaches,tempestuous)2)climate:refertothetextandsummarizetheirclimaticdifference;3)rainfall(precipitation):(ll.25-29)4)vegetation:theonlyplantsare____ontherockfaces.(ahandfulofmossesandlichens)Animals:theonlylandlife___(ll.20-21)Population:thereisnopermanent___,thoughthereareresearchstationsinAntarctica.3.WhyhasnotnohumanchildeverbeenborninAntarctica

Thereisalackofthebasicessentialstolife:rainfall,warmthandadegreeofstillness.Apartfromextremecold,windisasinjurioustohumanhealthascold.(ll.43-45)4.WhatwasthemaindrawbacktotheunveilingofAntarctica

Besidestheclimate,anevengreaterdrawbackwhichhadpreventedpeoplefromsettingeyeandsetfootonwasthenatureoftheSouthernOceanwhichsurroundsit.iii.ComprehensionExercises:1.TrueorFalse:TextbookP.137-1382.DifficultSentences:WorkbookP.128-129LanguagePoints:1.beinclinedtodosth.:belikelyto,tendtoE.g.Tomisinclinedtobelazy.

Nooneseemedinclinedtohelp.2.asregards:regarding,concerning,about,asfaras…isconcernede.g.Asregardshisability,weallfeelhehasgreatpotential.Youcanrestassuredasregardshischaracter.3.byfar:alargeamountordegree.Generallyusedwithacomparativeorsuperlativeadj.E.g.Thenewmodeofcellphoneisbyfarthebestofitskind.4.Haveaneffecton:affectE.g.Eachlivingthinginanecosystemhasagreateffectonmanyothersinmanyways.Pollutionwillhaveadirecteffectontheunexpectedchangeinclimateallovertheworld.5.Smallwonder(that)…:nowonder,notsurprisinglyE.g.Mostyoungpeopleareinclinedtofollowthefashion.Smallwonder(that)myteen-agenieceissofashion-conscious.AnewgovernmentpolicyonforestsisduetobeunveiledinApril.7.outweigh

verb[T]

tobegreaterormoreimportantthansomethingelse:Thebenefitsofthistreatmentfaroutweighanyrisks.8.hemsbinphrasalverb[M]

tosurroundsomeoneandpreventthemfrommovingordoingwhattheywanttodo:WhentheyreachedOxfordCircus,thedemonstratorswerehemmedinbythepolice.Wordsandphrasesforself-study:ahandfulofAtspeedBedescribedasBeinjurioustoIn…isolationRemaininviolateThinkof…asAttimesIncontrastInlength