高二英语UNIT4 Global warming课件人教版选修6.ppt

doyouknowanythingthatconsumeenergyinourclass 消耗 doyouknowanykindofenergyresource warmingup lights television computer washingmachine hairdryer camera psp wind coal oil nuclearpower solarpower water renewable可再生的 renewable renewable non renewable不可再生的 non renewable non renewable globalwarming reasons arisingpopulation theuseofenergy greenhousegases burningoffossilfuels coal oilandnaturalgas agriculturalindustry destructionofforests whatisthegreenhousemadeandusedfor greenhouse agreenhouseismadeofglassandisusedforgrowingplants especiallyduringcoldweather greenhouseeffect温室效应 reading theearthisbecomingwarmer butdoesitmatter getanoverviewofthestructure 结构 ofthisarticle wheremayyouseethearticle amagazine b adiaryc anoveld astory thenfinishtheexerciseionp48ofyour bestenglish glancequicklyatthemagazinearticleandanswerthequestions whowrotethemagazinearticle whatisthenameofthemagazine sophiearmstrong earthcare 2 whatarethenamesofthethreescientistsmentionedinthearticle dr janicefoster charleskeelingandgeorgehambley 3 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother theydon tagreewitheachother dr janicefosterthinkstheeffectsofglobalwarmingcouldbeveryserious georgehambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences charleskeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide graphishowsthetemperatureincreaseofonedegreefahrenheitbetween1860to2000 whatarethetwographsabout 浓度单位 graph2isaboutthecarbondioxidecontentintheatmosphere 1958 1990 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth exercise2 thetemperatureinthelastcenturydidn tseemtoincreasemuch everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans janicefosterbelievesthatshecanmeasurethefutureglobalriseintemperature theriseincarbondioxideiscausingasteadyincreaseinglobalwarming t t f t exercise2 5 georgehambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth itisclearwhattheeffectsofglobalwarmingwillbe t f secondreading dividethewholepassageinto4parts dividethearticleandgivethemainideaofeachpart part1 1 part2 2 3 part3 4 5 6 part4 7 introduceadiscussionoverthequestionsofglobalwarming explainhowglobalwarmingcomesabout listtwodifferentattitudesamongscientiststowardsglobalwarming it suptoreaderstodecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot discussion doyouthinkglobalwarmingisgoodorbadforus whatcanwedotoslowitdown let ssaveenergyandprotectourearth usinglanguagewhatcanwedoaboutglobalwarming turna n offwhenyou renotusingit putonmoreclothesinsteadofturningupthe walkor insteadoftakingmotorvehicles cans bottles plasticsandnewspapers buythingsmadefrom buyproductsthatareeconomicalwith inyourgardenoryourschoolyard talkwithyourfamilyandfriendsabout electricalappliance heat rideabike recycle recycledmaterials energy planttrees globalwarming languagepoints 1 whatdoyouthinkgreenhousegasesdo 你认为温室气体有什么作用呢 本句中think后接了一个由what引导的宾语从句 但应注意的是 特殊宾语从句即当一般疑问句主句的谓语动词是think believe suppose consider imagine guess和suggest等时 表疑问的词要放在主句前即句首 例如 正 whodoyouthinkwillwininthegame 误 doyouthinkwhowillwininthegame 当然一般情况下宾语从句的疑问词应放在主句之后 例如 误 whydoyouknowwecan tcutdownthebigtree 正 doyouknowwhywecan tcutdownthebigtree pare compareto with 与 相比comparedto withmanywomen pareawithb 相比 不同 ifyoucompareherworkwithhis pareatob 把a比作bpoetshavecomparedsleeptodeath eabout comeabout takeplace happenpleasetellmehowtheaccident iamstillinthedark 2005江西 a camebyb cameoutc cametod cameabout 得到 获得 出来 露出 扑向 6 withoutthe greenhouseeffect theearthwouldbeaboutthirty threedegreescelsiuscoolerthanitis 如果没有温室效应 地球会比现在冷33 这是一个含蓄虚拟条件句 ifthereisno greenhouseeffect theearthwouldbeaboutthirty threedegreescelsiuscoolerthanitis butforelectricity iftherewerenoelectricity therewouldbenomodemindustry 要是没有电 就不会有现代工业 hewashavingameetingwithhisstudents otherwisehewouldhavecome 他当时正与他的学生进行讨论 否则的话他就来帮我们了 hefeltverytiredyesterday orhewouldhaveattendedtheparty 他昨天很累 不然他就参加那个聚会了 7 resultin导致 造成 leadto theaccidentresultedinthreepeoplebeingkilled 这一事故导致他的死亡 theaccident thedeathoftwopassengers a resultedfromb resultedinc resultedofd resultedwith resultfrom 起因于 因为 10 consequence inconsequence因此asaconsequence结果asaconsequenceof由于 的结果 11 range in withinrange在射程之内outof beyondrange在射程之外rangefromatob范围从a到b 13 evenif though usedtoemphasizethat althoughsomethingmayhappenormaybetrue itwillnotchangeasituationiwouldn ttellyouevenifiknew evenifshesurvives she llneverfullyrecover eventhoughhe s24now he sstilllikealittlechild icanstillremember eventhoughitwassolongago grammar theuseof it 1 用于代表前面提到的人或事物 who sit itisme lookatthepicture itisapictureofourschool 2 用于代替指示代词this和that isthisjacketyours yes itis 一 it做代词 3 用以表示时间 距离 天气 季节 环境等 itishalfpasteightnow it sonlyhalfanhour swalkfromheretoourschool ihopethatitwillbefinetomorrow it sspringnow it squiethere time distance weather season circumstance 二 it做形式主语 1 主语从句 1 it be 名词 that从句e g itisapitythatyoumissedtheconcert 2 it be 形容词 that从句e g itispossiblethatwewillwin 3 it 不及物动词 that从句e g itappearsthatheisill 4 it be 动词的过去分词 that从句e g itisknownthatfenghuangoldtownisoneofthetwomostbeautifultownsinchina 二 it做形式主语 2 5 it be 形容词 名词 forsb ofsb todoe g it scarelessofhertomakeaspellingmistake it shardformetofinishitintwodays it smydutytotakecareofallthestudents 6 it be 名词 doinge g it snouse nogoodsmoking 三 it做形式宾语 主 v it adj n 不定式 动名词 that从句 iconsideritwrongtocheatinanexamination don tyoufinditawasteoftimewatchingtelevisiontoomuch ithoughtitstrangethatjackshouldhavehadsomuchmoneytospendthesedays 四 it的其他句型 强调句 itis was 被强调部分 that who 剩余部分 ienjoytheenglishclasswithmisshuangeveryday itisiwho thatenjoytheclass itistheenglishclassthatienjoywith itismisshuangwho thatienjoy itiseverydaythatienjoy itwasatteno clock igothome itwasteno clock igothome itwasintheroom iwasborn thisistheroom iwasborn that where that when puzzle 1 强调句or定语从句 wherewereyouborn whyareyoulateforclass whendoyouwanttohavethemeeting wherewasitthatyouwereborn whyisitthatyouarelateforclass whenisitthatyouwanttohavethemeeting puzzle 2 强调句的疑问句 2 it be 一段时间 since 自从 有多久了itis3yearssinceicametothisschool itis3yearssinceididn tstudyinthisschool 我到这所学校已经三年了 我不在这所学校学习已经三年了 3 it be 时间段 before 过多久 才 itwastwohoursbeforethefiremenarrivedhere itwasnotfiveminutesbeforethefiremenarrivedhere 过两个小时消防员才到 没过五分钟消防员就到了 4 it shightimethatsb did shoulddo sth 虚拟语气我们早该向他道歉了 it shightimeweapologizedtohim weshouldapologizetohim 5 it sthefirsttimethatsb havedone 这是我第一次看刘德华的演唱会 it sthefirsttimethatihaveseenandy sconcert summary theuseofit 一 it做代词 二 it做形式主语 1 主语从句 二 it做形式主语 2 三 it做形式宾语 四 it的其他句型 强调句 2 itis 一段时间 since 3 it be 时间段 before 4 it stimethatsb did shoulddo sth 5 it sthefirsttimethatsb havedone 与过去一个世纪相比 地球表面的温度已经大约升高了一摄氏度 其实 我们已可以感受得到 我们越来越难以忍受夏天的炎热 也不习惯冬天的暖和 气温的升高已经对人类的健康 动植物的生存 生态系统产生了很大的影响 毫无疑问 人类活动应该对环境的恶化负责任 条件允许的话 世界各国都应该努力改善环境 若没有全世界人们的共同奋斗 我们明天将会是怎样 thelastcentury theearth ssurfacetemperature fahrenheittoday wemayfeelthatwe andwecan t thewarmwinter theriseoftheearth ssurfacetemperaturehas humanhealth theexistenceofcreaturesandthebalanceofecosystems thebadenvironment withoutallpeople scommonefforts whatwouldourfuturebelike comparedto hasrisenbyabout1degree asamatteroffact canhardlyputupwiththehotsummer getusedto mademuchdifferenceto thereisnodoubtthathumanbeing sactivitiesareresponsiblefor conditionspermitting allcountriesintheworldshouldtryhardtoimproveourenvironment readingtime readadairyfromastudentin3minutesthenfinishtheexx comprehensionanelectrichairdryerawashingmachineafridgeanair conditioneratv electricalappliances readingtime 2 vocabularyfeetistowalkaslungisto hotistocoldasabnormalisto supperistoeveningasbreakfastisto examistoexaminationas istorefrigerator filmistocinemaas istotv productistofactoryas istocow breath normal morning fridge program milk 3 guessingthemeaning wehavetowashourwindowsveryoften why thewindowsgetfoggedupfromthepollutionintheair 2 asiamfedupwiththefoodinthecanteen ibuypackagedfood 变得雾蒙蒙的 厌烦 难以忍受 b e p101 theposted 过去分词做定语 修饰circular abanonsthbebannedfromgivingwhich thataccordingtoalargequantityofpollutionfewerarebeingdiscussed 现在进行时的被动语态 bookp65 mildcircumstancefloodcatastrophesteadilycasualaveragewidespreadelectricalmotoradvocatedputupwithkepton listeningskills 1 payattentiontonumberwhenlistening 时间 距离 号码 价钱 年龄 数量 尺寸 exx pleasewritedownthenumbersfromyourmemory 一打二十十年十四四十第十四第四十十九九十第九第十九第九十 dozenscoredecadefourteenfortyfourteenthfortiethnineteenninetyninthnineteenthninetieth text9w ken youjustmadeahardshipupmteverest right so tellmeaboutit m ok well asyouknow mteverestisthetallestmountainintheworld it stoughtogettoandclimbup andithasthemostextremeweatherofanymountainintheworld w youhadexperiencedthat hadn tyou m isuredid iwascomingdownthemountainwhensuddenlytheweatherchanged therewasastrongwindandthetemperaturedroppedfrom 10 to 40 inhalfandhour w wow diditsnow m no itwassunny thewindhadblownallthecloudsaway withthewindblowingat75kmperhour itkeptgettingcolderandcolder downto 70 iwasnearlyfreezingandcouldhardlymove w sowhathappened m well iradioedthebasecampforhelp whilewaitingforrescue ithoughtitwastheendofme butlaterthewinddroppedandthetemperaturebegantoclimbbackupnearzero andrightthenisawthehelicoptercomingtorescueme w youweresolucky iguessyou llneverclimbmteverestagain huh m i mgoingbacktodoitagainnextmay 1 今天他不能来此 我将代表他发言 2 他们不能再忍受这么糟糕的工作环境 3 只要不下雨 我们就可以去打篮球 4 我喜欢运动 例如游泳 跑步 划艇等等 5 你无论如何也不能离开家 hecan tcomeheretoday soiwillgiveaspeechonbehalfofhim onhisbehalf theycan tputupwithsuchabadworkingenvironmentanylonger solongasitwon train wecangoplayingbasketball ilikesports swimming running boatingandsoon undernocircumstanceshallyouleaveyourhome writing 全球变暖已经成为一个越来越受人关注的现象 地球也日趋炎热 是什么原因造成了全球变暖这个现象 请列举两点以上的原因并给出两点以上自己的建议或措施 字数控制在100 150之间 structure para1 简要概括现象或者出现的问题 para2 分析形成原因para3 提出自己的建议或解决措施 最后写上总结性的话 1 nowadays it scommonthatchinesestudentsgoabroadtostudy evenincludingsomeprimaryschoolstudents 2 notonlycanstudentsbroadentheirhorizonsandlearndifferentculturesandlanguagesfromforeigncountries butalsotheywillbecomemoreindependentinlives 3 however it stoomuchofanexpensetostudyabroadsothatnotallfamiliescanaffordit 4 furthermore studentswillhavetobefacedwithmanyhardships facemanydifficultiessuchasgettingusedtoanentirelynewenvironment whicharehardtodealwithforthestudentsthataretooyoung 5 inmyopinion wecanconsiderstudyingabroadwhenwearemature oldenoughtodecidewhattodoandwecanapplyforscholarshipstoreducetheexpenses thereisnodoubtthattheearthisbecomingwarmerandwarmer becausepeopleburnmuchfossilfuelslikecoal naturalgasandoiltoproduceenergythathasresultedinthisincreaseincarbondioxide ontheotherhand thisglobalwarmingisnaturalphenomenon too besides toomanytrees werecutdownwhichfastenthetendencyofglobalwarming inordertocontrolthisglobalwarming isuggest3ideas first youshouldturnofftheelectricalappliancethenyoudon tusethem second youshouldwalkorrideabikeinsteadofmotorsifyoucan finally youshouldtalkwithyourfamilyandfriendsabo