高中英语人教版Unit4Globalwarming unit4sectionⅰ

Unit4Globalwarming随着经济的发展，更多的温室气体被排放，其中大约70%为二氧化碳，全球气候变暖是目前人类面临的最大环境问题。Withthedevelopmentofeconomy，moreandmoregreenhousegasesarebeingdischargedintothemakesupabout70%ofthegreenhousegases，whichisconsideredtobeoneofthegreatestcausesofglobalhasharmfuleffects，causingthesealeveltoriseandmanynaturaldisasterstostrike.Sowemusttakeeffectivemeasurestosaveour，weshouldusemorecleanenergyandlesscoaland，weshouldgotoworkonfootorbybusinsteadofdrivingacarifpossible.Third，weshouldplantmoretrees，becauseplantscanturnCO2intoimportantly，weshouldformthehabitofsavingenergyinourdailylife.1．dischargevt. 放出；流出；发射2．takeeffectivemeasures 采取有效措施1．Whatcausesglobalwarming?2．Howmanymeasuresmustwetakeaccordingtothepassage?【答案】does..SectionⅠWarmingUp&Reading—Preparing根据提示写出下列单词1．consumevt. 消费；消耗；吃完2．mildadj. 温和的；温柔的；淡的3．subscribevi. 同意；捐赠；订阅vt. 签署(文件)；捐助4．quantityn. 量；数量5．tendvi. 趋向；易于；照顾vt. 照顾；护理6．opposevt. 反对；反抗；与(某人)较量7．statevt. 陈述；说明8．consequencen. 结果；后果；影响9．rangen. 种类；范围10．glancevi. 看一下；扫视n. 一瞥看单词学构词consequence中­ence是名词后缀，如existence，reference，dependence等。根据提示补全下列短语1．subscribeto 同意；订阅2．comeabout 发生；造成3．quantitiesof 大量的4．goup 涨价；上涨5．resultin 导致6．beopposed to 反对7．keepon 继续8．compare...to 与……相比根据提示补全下列教材原句1．Thatprobablydoesnotseemmuchtoyouorme，butitisarapidincreasewhencomparedtoothernaturalchanges．这个数值对你我来说可能是无所谓的，但是跟其他自然变化相比较而言，这却是一种快速的增长。2．Thereisnodoubtthattheearthisbecomingwarmer(seeGraph1)andthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.毫无疑问，地球是在变暖(见表一)，而地球变暖正是人类活动导致的，并非是一种无规律的自然现象。3．Evenifwestartreducingtheamountofcarbondioxideandothergreenhousegases，theclimateisgoingtokeeponwarmingfordecadesorcenturies.即使我们开始减少二氧化碳和其他温室气体的含量，在(未来)几十年或几个世纪内，气候仍会持续转暖。4．Withoutthe‘greenhouseeffect’，theearthwouldbeaboutthirty­threedegreesCelsiuscoolerthanitis.如果没有“温室效应”，全球的温度会比现在低33摄氏度左右。阅读P26－27教材原文，选择最佳答案。1．Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?A．DrJaniceFoster.B．CharlesKeeling.C．GeorgeHambley.D．SophieArmstrong.2．Theauthorprobablyagreesthat．A．actuallyglobalwarmingisgoodformanB．weshoulddonothingabouttheglobalwarmingC．catastropheswillhappeniftheglobekeepsonwarmingD．alotremainstobefoundoutabouttheeffectsofglobalwarming3．What'sthemainideaofthesecondparagraph?A．Thecauseoftheearth'sbecomingwarmer.B．Theconsequenceofburningfossilfuels.C．Theincreaseofcarbondioxide.D．Globalwarmingwillgoon.4．AccordingtoGeorgeHambley，．A．globalwarmingisaveryseriousproblemB．there'snoneedtoworryaboutglobalwarmingC．thelevelsofCO2intheairwillbecomelowerinthefutureD．moreanimalswillmakegreenhousegasesdecrease5．Wecaninferfromthetextthat．A．thedebateabouttheeffectsofglobalwarminghasnotbeensettledB．thegreenhouseeffectistheresultofpeople'sactionsC．allscientiststhinkitisimportanttoreducetheamountofCO2intheatmosphereD．reducinggreenhousegaseswillimmediatelydecreasetheearth'stemperature【答案】1－5BDABA阅读P26－27教材原文，在空白处填入适当内容(1个单词)或括号内单词的正确形式。Duringthe20thcenturythetemperatureoftheearth1.(rise)aboutonedegreehasthiscome2.？Allscientistssubscribe3.theviewthatitishumanactivity4.hascausedtheglobal5.(burn)offossilfuelslikecoal，naturalgasandoilhasresultedintheincreaseincarbondioxide，quantitiesofwhich6.(add)intotheglobaltemperaturegoesupwithmoreheatenergy7.(tend)tobetrappedintheattitudesofscientiststowardstherisearecompletelydifferent.Ontheonehand，somethinkthetrendwouldbe8.catastrophe.Ontheotherhand，some9.(oppose)totheabovepredictthatany