Unit3EnvironmentalProtectionReadingandThinking課件高中英語人教版選擇性

選擇性必修三Unit3Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.——MohandasK·Gandhi

地球能滿足每個人的需要，但滿足不了每個人的貪婪?！边_斯·卡拉姆昌德·甘地P.26Discussclimatechange1Beforeyouread,lookatthegraphandthepicturebelowanddiscussthesequestionsingroups.1Whatisthegraphabout?Whatinformationcanyougetfromit?2Haveyoueverseenthephotobefore?Whatmightbethestorybehindit?ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2016.Itshowsthetemperatureanomaly,whichshowshowmuchthetemperaturehasrisenabovewhatitwouldusuallybeatabaselevel.Ihaven’tseenthisphoto,butIhaveseenphotoslikeit.Thestoryisthatthepolarbearstarvedtodeathbecauseitcouldnotfindenoughtoeat.2Readthetextandanswerthequestions.

1Whathappenedtothepolarbearinthephoto?Whydidthewriterwriteaboutit?2Whyisthe“natural”greenhouseeffectimportantandnecessary?3Whataretheconsequencesofhighgreenhousegasemissions?4Whydidtheauthormentiontheclimatescientists’warning?5Whatistheauthor’spurposeofwritingthistext?P.26P.262Readthetextandanswerthequestions.

1Whathappenedtothepolarbearinthephoto?Whydidthewriterwriteaboutit?2Whyisthe“natural”greenhouseeffectimportantandnecessary?3Whataretheconsequencesofhighgreenhousegasemissions?4Whydidtheauthormentiontheclimatescientists’warning?5Whatistheauthor’spurposeofwritingthistext?P.26Theauthor’spurposeistoinformthereaderandinspirethemtodowhatevertheycantodealwiththisproblem.Thepolarbearinthephotodiedofstarvation.Thewriterwroteaboutitbecauseitshowedoneoftheeffectsofrisingtemperaturesduetoclimatechange.The“natural”greenhouseeffectisimportantbecauseitwarmstheEarth’ssurfaceandkeepsithabitable.

Highgreenhousegasemissionsleadtomoreheatenergybeingtrappedintheatmosphere

andrisingtemperatures.

Theauthormentionedtheclimatescientists’warningbecauseitisessentialthatwetakeactionandsoitneedstobebroughttoeveryone’sattention.P.27P.274Discussthesequestionsingroups.

1Whatexamplesofextremeweatheranddisastersdoyouknow?Canyoumakealist?2Doyouthinkclimatechangeistheresultofhumanactivity?Giveyourreasons.3Whodoyouthinkshouldtakeresponsibilityfordealingwithclimatechange?Whatcanwedo?TherearesadlymanyexamplesofextremeweatheranddisastersIknowof,suchastheextremerainfallinFranceandthedroughtinEastAfricain2014.Therewerealsoheatwavesonnearlyeverycontinentduetoclimatechange.

Idothinkthatclimatechangeistheresultofhumanactivitiesbecausethemajorityofscientistsalsothinkso,andalsobecauseglobaltemperatureshavefollowedtheriseinglobalemissionsandpopulation.P.26現(xiàn)象事例成因后果——危害措施Expositoryessay說明文LanguagestudyP.26_______________________表達：越來越多的證據(jù)表明，導致不良健康的真正因素并非高脂肪食物。有強有力和全面的證據(jù)表明，氣溫上升導致世界范圍內(nèi)極端天氣和自然災害增加。P.26_______Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevelsprovideevidenceofadramaticchangeintheglobalclimate.海洋和大氣的變暖，冰的融化和海平面的上升提供了全球氣候急劇變化的證據(jù)。

三個現(xiàn)在分詞都用作定語修飾名詞，分別表示“正在變暖的”、“正在融化的”和“正在上升的”；翻譯時，將作定語的現(xiàn)象用作主語。___________P.26______allthatremainedofthepolarbear=whatremainedofthepolarbear那只北極熊剩下的定語從句修飾all，強調(diào)剩下的東西少；用what引導時是名詞從句，不能加all作先行詞remain

vi.

留下(在原地)；(走了、用了或毀了之后)剩下；(其它的處理后)留待(處理)

linkingverb.

繼續(xù)保持(某狀態(tài))、依然；還是e.g.SheremainedintheclassroomwhentheotherswenttohavePEclass.

Fewbuildingsremainedaftertheearthquake.Whatremainsofthemountainvillagearesomedesertedhouses.Therearestillafewquestionsremainingtobeanswered._________________________表達：別人去上體育課時，她留在教室里。地震后剩下的建筑物寥寥無幾。那個山村遺留下來的時廢棄的房屋。仍有幾個問題有待回答。(all)skinandbones骨瘦如柴；皮包骨頭_____________________________________________________________________________________________________________________________________________________________________________

Expertsclaimedthatlowsea-icelevels

causedbyclimatechangemeant

thebearcouldnothuntsealsasbefore,soithadtotravelgreaterdistancesinordertofindfood.

專家稱，氣候變化導致的低海冰水平意味著這只熊不能像以前那樣捕獵海豹，因此它必須走更遠的距離才能找到食物。_______________主句①_____________________第一重賓語從句__________________第二重______________________賓語從句__________________________________________________主句②________________________過去分詞短語作定語__并列連詞P.26_______________________________________________________________________________________ThisalarmingcaseshowedhowtheincreaseintemperaturehadanimpactonEarth’secology.

這一令人震驚的事例表明，氣溫升高對地球生態(tài)有多大的影響。alarming

adj.

令人驚恐的e.g.Thediseasehasspreadatanalarmingrate.(以驚人的速度)Therainforestisdisappearingatan

alarmingrate.

_________________________主句_____________________________________________________________賓語從句P.26P.27_____________________________________________________________________________________________主句______________________定語______________________________________________________________________________________________________________________________________________________________________________從句________________________________________________________________P.27____________The“natural”greenhouseeffectreferstothefactthatheatfromthesunenterstheatmosphereandwarmsEarth'ssurfaceasshort-waveradiation.

“自然”溫室效應是指太陽的熱量進入大氣層，以短波輻射的形式使地球表面變暖。_____________________________________________主句_____________________________________________同位語__________________________________________________________________________________________________________________________________________________________________________從句Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsomeoftheheat,keepingEarth'sclimatewarmandhabitable.

大氣中的溫室氣體，如甲烷和二氧化碳，會吸收部分熱量，使得地球氣候保持溫暖和適宜居住。_________________________________主語_______________________________________定語______________________________________________________________________________________________________________________________________________________________________________結果狀語P.27___________________謂語trap

C

(捕捉動物的)陷阱、捕捉器、夾子；圈套、詭計；(難以逃脫的)困境

vt.

使陷入困境、使落入陷阱；卡住、夾住、絆住、纏??；留住、吸收(能量等)；

設陷阱捕捉；抓捕；使陷入困境、使中計、誘騙e.g.Help!I’mtrapped!救命??！我被困住了！Takecare.Don’ttrapyourfingersinthedoor.小心！別讓門夾了手指頭。Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels,

moreheatenergyistrappedintheatmosphereandcausesEarth'ssurfacetemperaturetorisequickly.

當人們通過燃燒化石燃料產(chǎn)生大量額外的溫室氣體時，更多的熱能被困在大氣中，導致地球表面溫度迅速上升。________________________________________________________________________________________主句________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________狀語從句P.27_________________________P.27_______________________________________________________________________________________________________________________________________主句______________________________________________________________同位語_________________________________________________________________________________________________________________________________________________________________________從句_________________________結果狀語___________________________________結果狀語表達：我們要對現(xiàn)有的體制進行全面的研究。這是所有景點的詳細指南。P.27____________________________________________________

Climatescientistshavewarnedthatifwedonottakeappropriateactions,thiswarmingtrendwillprobablycontinueandtherewillbeahigherpricetopay.

氣候科學家警告說，如果我們不采取適當?shù)男袆?，這一變暖趨勢可能會繼續(xù)下去，將付出更高的代價。______________________________主句________________________________________________________________賓語______________________________________________________________________________________________________________________從句_____________________________________賓語從句的條件狀語從句trend

C

(形勢發(fā)展、變化的總的)趨勢、動向

e.g.Latelytherehasbeenagrowingtrend

towardsearlierretirement.Adisturbingtrendisthatfewerwomenarewillingtohavemorethanonechild.Thegrowingtrendisforyoungpeopletogetmarriedlater.tendency

C

(個體或部分人物的)傾向；(總的變化或發(fā)展方向)趨勢e.g.Thedrughasatendency

tocauseheadaches.Thereisanincreasingtendency

forwomentohavechildrenlaterinlife.______________________________________________________________________________

Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.

事實上，有關極端暴雨和熱浪造成死亡和經(jīng)濟損失的新聞報道經(jīng)常播出。

____________主語__________________________________介詞短語作狀語_______________________________________________________________________________________介詞短語作狀語P.27___________謂語______評價性狀語_________頻度狀語P.27________________________________________________________________________________________

Continuedgreenhousegasemissions

willresultinfurtherwarmingandlong-lastingchangestotheglobalclimate.

持續(xù)的溫室氣體排放將導致全球氣候進一步變暖和長期變化。_____________________________________主語___________________________作介詞賓語_________________________________________________名詞短語__________謂語continued

adj.

持續(xù)不斷的；繼續(xù)存在的(指到現(xiàn)在為止的持續(xù)不斷的情況)e.g.Humanactivitiesthreatenthecontinuedexistenceofmanyspecies.Thankyouforyourcontinuedsupport.continuing

adj.

持續(xù)不斷并可能持續(xù)下去的

continuous

adj.

一段時間內(nèi)持續(xù)不斷的e.g.Thankyouforyourcontinuingsupportofournewbusiness.Thankyouforyourcontinuoussupportoverthelast25years.表達：感謝你一直以來對我們的支持。P.27________________________________________________________________________________________

Governments

needtoconsidermakingpoliciesandtakingappropriateactionsandmeasures

toreducegreenhousegasemissions.政府需要考慮制定政策并采取適當?shù)男袆雍痛胧﹣頊p少溫室氣體的排放。_____________主語__________________________________不定式短語作目的狀

語________________________________________________________________________動名詞短語作賓_________________謂語______________________語P.27_________________________________________________________________________

We

asindividualscanalsoreduceour“carbonfootprint"byrestrictingtheamountofcarbondioxide

ourlifestylesproduce.我們個人也可以通過限制我們的生活方式產(chǎn)生的二氧化碳量來減少我們的“碳足跡”。__主語____________________________介詞短語作方式_____________________賓語_______________謂語_________________________________________________________狀語_____________方式狀語____________________從句作定語restrict

vt.

限制、控制(大小、數(shù)量、范圍等)；約束、妨礙(行動或活動)e.g.Schoolsshouldrestrictclasssizesto45students.Speedisrestricted

to30mphintowns.Irestrictmyselftoonecupofcoffeeaday.limit

vt.

(對某