高二英語選修6第四單元課件

Unit4GlobalWarmingPeriod1&2WarmingupandReadingIWorkingroups---listthingsasrequired:1.Thingsthatuseenergyaroundusoratanyotherplaces,(ie.light)2.Sourcesofenergy(ie.coal)Warmingup–I(３m)ThingsthatuseenergySourcesofenergylightstelevisioncomputerfridgestovewashingmachinehairdryercoaloilnaturalgaswind(power)sun(solarenergy)water(hydro-electricpower)thesea(tidalenergy)Uranium鈾(nuclearenergy)plantwaster(biomassenergy)Windmills,renewable.What?Renewable?Warmingup–II(5m)What?Whatkind?Renewable?Acoalpowerstation,non-renewable.What?Whatkind?Renewable?Anoilrefinery(精煉廠),non-renewable.What?Whatkind?Renewable?Anuclearpowerplant,non-renewable.What?Whatkind?Renewable?Ahydro-electricdam,renewable.

CoalOilNaturalgasUraniumWind(windpower)Sun(solarenergy)Water(hydro-electricpower)Plantwaste(biomassenergy)Hotspringsorgeysers(geothermalenergy)Thesea(tidalenergy)FossilfuelsNon-renewableRenewableWhatarefossilfuels?

Ancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Alsoknownasnon-renewableenergybecauseoncetheyareusedtheyhavegoneforever;theycannotberenewed.Theearthisbecomingwarmer—butdoesitmatter?ReadingReadthepassageagaintofindouttheanswerstothequestionsinEx.1ReadingI–scanning(5m)1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?SophieArmstrong.EarthCare.DrJaniceFoster,ChrlesKeeling,GeorgeHambley.3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.4.Whatarethetwographsabout?5.Whatisthemaintopicofthearticle?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.Globalwarming/thewarmingoftheearth.

Readthepassagecarefullyandjudgewhetherthestatementsaretrueorfalse?Thetemperatureinthelastcenturydidnotseemtoincreasemuch.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.ReadingII-skimming(5m)FTT4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.TTF1.Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?

A.Dr.JaniceFoster.

B.CharlesKeeling.

C.GeorgeHambley.

D.SophieArmstrong.BReadingIV(3m)2.Theauthorprobablyagreesthat________

A.actuallyglobalwarmingisgoodforman.

B.weshoulddonothingabouttheglobalwarming.

C.catastropheswillhappeniftheglobekeepsonwarming.

D.alotremainstobefoundoutabouttheeffectsofglobalwarming.DThedifferentideasbetweenDr.JaniceFoster&GeorgeHambley

Dr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea____________andcouldbe______________.Morecarbondioxideisa__________thing,whichmakescrops__________andwillencourage____________________________.goupcatastropheveryseriouspositiveproducemoreagreaterrangeofanimalsReadingV(4m)SummarySkimoverthepassage,andtellwhatyouhavelearntinclass.

Trytotalkingeneraltermsratherthanindetails.eg:Ilearntthattheearthisbecomingwarmer.Ilearntthatglobalwarmingcouldhaveterribleeffectsontheenvironment.

….DebateABA:Weshalldosomethingaboutglobalwarming.B:Weshalldonothingaboutglobalwarming.AssignmentReadthepassageagainandreviewthenewwordsandexpressions.Preparethedebateingroups.Surftheinternetformoreinformationaboutglobalwarming.LanguagepointsforreadingI…itisarapidincreasewhencomparedtoothernaturalchanges.compareAtoB

compareAwithB：把A比作B，一般要有相似之處，顯示某人或某物與他人或他物相同。：把A和B進(jìn)行比較eg:我們常把兒童比作花朵。eg:如果你把這本字典和那本比較一下，你就會發(fā)現(xiàn)許多不同之處。Weoftencomparechildrentoflowers.Ifyoucomparethisdictionarywiththatone,you’llfindmanydifferences.LanguagepointsforReadingI2.Sohowhasthiscomeaboutanddoesitmatter?comeabout:發(fā)生，造成相當(dāng)于happeneg:你能告訴我事情是怎么發(fā)生的嗎？eg:隨著電的使用，種種大變化發(fā)生了。Canyoutellmehowtheaccidentcameabout？Withtheuseofelectricity,greatchangeshavecomeabout.comeoutcomeup出現(xiàn)；〔消息〕傳開；〔觀點(diǎn)〕公開發(fā)生、舉行；〔在空中〕出現(xiàn)3.randomadj&n.Adj.隨意的，任意的eg:Theinformationisprocessedinarandomorder.這些信息是隨機(jī)處理的。n.atrandom隨意地eg:我隨意點(diǎn)了個人。Icalledoneatradom.4.phenomenon

n.現(xiàn)象；奇跡，罕見的人才或事物eg:雨雪是天氣現(xiàn)象。Rainandsnowarephenomenaoftheweather.eg:不應(yīng)該簡單地視未婚媽媽為一種社會現(xiàn)象。Unmarriedmothersshouldnotberegardedsimply_____________________.eg:貝多芬是音樂家中的天才。Beethovenwas________________amongmusicians.復(fù)數(shù)形式pl.phenomena

asasocialphenomenon.aphenomenon5.subscribev.不及物動詞，后接to1>訂閱，訂購〔報(bào)紙等〕eg:我今年訂了中國日報(bào)。IsubscribedtoChinaDailythisyear.2>捐贈。3>subscribetosth贊成同意sthHesubscribetowhatIsaid.他同意我說的。6.tend

1>v.后跟to常常會，eg:女人往往比男人長壽。Womentendtolivelongerthanmen.2>v.后跟介詞eg:近年來物價趨于上升。Thepriceshavetendtowardsoverrecentyears.3>vt.照顧，伺候n.tendency傾向偏好adj.tender溫柔的辨析：trendn.趨向7.resultin產(chǎn)生，導(dǎo)致(=cause/leadto)主語：in的賓語：eg:努力終歸成功。Hardworkresultsinsuccess.resultfrom

主語：|from的賓語：起因結(jié)果由…引起，產(chǎn)生結(jié)果起因Hissicknesswascausedbyeatingtoomuch.=Hissicknessresulted______eatingtoomuch.(in/from)from5.statev.陳述，聲明；

n.狀況，情況；國家；+n.state+that從句+wh-從句；可用于被動結(jié)構(gòu)，也可用過去分詞作定語。n.statement聲明，陳述+n.state+that從句+wh-從句；他已公開聲明他會支持那項(xiàng)政策。Hehaspublicly________________forthepolicy.statedhissupport2.我聽見那位官員說不接納兒童。Iheardtheofficialstatethattheywouldnotacceptchildren.3.合同清楚地表達(dá)了那項(xiàng)工作應(yīng)在何時完成。Thecontractstatedwhentheworkshouldbefinished.eg:她今天心情不好。eg:國家首腦n.狀況，情況；國家Sheisinaterriblestatetoday.theheadofstate6.range

v.排列,使成行；偏袒，站在…的方面。

n.范圍(尤指從…到…各種種類,可供選擇的范圍等，可加不定冠詞)；排列

beyondtherangeof…

outofone’srange超越……的范圍某人達(dá)不到的eg:這家商店商品品種多。Theshopkeeps____________________.eg:年齡范圍自6歲到12歲。_____________isfromsixtotwelveyearsold.awiderangeofgoodsTheagerang