大学英语4,教案

本文格式为Word版，下载可任意编辑——大学英语4,教案Unit2DeerandtheEnergyCyclePreview1.Learnthevocabuaryandreadthroughthetext2.ScanningDirectionsScanthetextanddiscussinpairs,listthefactsaboutthelifeofdeerinfourseasons.SummeradultmalesadultfemalesfawnsFallWinterSpringPeriod1-2BackgroundInationandGlobalReadingI.Warm-upandBackgroundInation2.卡尔达舍夫等级1964年，俄罗斯天体物理学家尼古拉-卡尔达舍夫提出了这样一个理论他认为人类文明的技术进步与将其国民可操纵的能源总量息息相关。根据这条思路，他从低到高确定了银河系中文明进展的三种类型类型I该文明是行星能源的仆人，这意味着他们可以主宰整个世界能源的总和。

类型II该文明能够收集整个恒星系统的能源。

类型III该文明可以利用银河系系统的能源而为其所用。

II.GlobalReading2.QuestionsandAnswerspart2-318-20Period3-4DetailedReadingPartOne1Itisenergy,notloveormoney,thatmakestheworldgoround.Somepersonssaythatlovemakestheworldgoround.Othersofalessromanticandmorepracticalturnofmindsaythatitisntlove;itsmoney.Butthetruthisthatitisenergythatmakestheworldgoround.Energyisthecurrencyoftheecologicalsystemandlifebecomespossibleonlywhenfoodisconvertedintoenergy,whichinturnisusedtoseekmorefoodtogrow,toreproduceandtosurvive.Onthiscyclealllifedepends.1.2.turnn.anaturaltendency;inclination3.currencyn.4.ecologicala.ecologyn.5.convertvt.changefromone,use,oanother;causeapersontochangehisbeliefs,etc.convertinto;convertfrom;convertto改信6.1induecourseorsuccession2oneafteranotherHethatshutsLoveout,inturnshallbeshutoutfromLove.Tennysonbyturnsattheturnofthecentury7.paragraph2-6Itisfairlywellknownthatwildanimalssurvivefromyeartoyearbyeatingasmuchastheycanduringtimesofplenty,thesummerandfall,storingtheexcess,usuallyintheoffat,andthenusingthesereservesoffattosurviveduringthehardtimesinwinterwhenfoodisscarce.Butitisprobablylesswellknownthatevenwiththeirstoredfat,wildanimalsspendlessenergytoliveinwinterthaninsummer.1.timesofplenty2.Whatisthegrammaticalfunctionof“eating...,storing...,andthenusing...”3.excessn.过量，过度exceedv.超过inexcessof超过4.reservev.n.储蓄（物）reserve,preserveanidea,plan,hemind4.givebirthto5.6.Paraphrasethesecondunderlinedsentence.7.meetvt.satisfy;makebothendsmeet;meettheneedof8.consumeeatordrink,use,useupAsthesummerprogressesandthefawnsgrow,theybecomelessdependentontheirmothersmilkandmoredependentongrowingplantsasfoodsources.Theadultmalesspendthesummergrowingantlersandgettingfat.Bothmalesandfemalescontinuetoeathighqualityfoodinthefallinordertodepositbodyfatforthewinter.Inthecaseofdoesandfawns,agreatdealofenergyisexpendedeitherinmilkproductionoringrowing,andfatisnotaccumulatedasquicklyasitisinfullgrownmales.Fgress进展，进步2.“Highqualityfood”3.depositvt.putorstoreforsafekeeping;keepmoneyinabankShehadjustdepositedalargesumofmoneyinheraccount.4.Incaseof5.expendvt.expend,spendcollectorgatherlittlebylittleHequicklyaccumulate