高二 人教版选择性必修三 英语 第三单元《Lesson 2 Language Points》课件.pptx

高二—人教版选择性必修三—英语—第三单元EnvironmentalProtectionLesson2LanguagePoints

Teachingobjectives:Bytheendofthisperiod,youwillbeableto…1)learntoguessthemeaningofthenewwordsfromthecontext.2)furtherunderstandtheusagesofsuchimportantwordsandexpressionsasgreed,starve,ecologyandsoon.3)learntousethesetargetwordsbyputtingthemintherightcontextwiththerightfrom.

Whodoyouthinkshouldtakeresponsibilityfordealingwithclimatechange?Review

Earthprovidesenoughtosatifyeverymansneeds,butnoteverymansgreed.——MohandasK.Gandhi

greed[不可数名词]astrongdesireformorewealth,possessions,power,etc.thanapersonneeds贪婪；贪心；贪欲

greedGreed?is?not?merely?caring?about?money?and?possessions,?but?caring?too?much?about?them.?

Humanbeingsshouldtakeresponsibilityfordealingwithclimatechange.

Q1:Lookatthepicture,whathappenedtothepolarbear?Thepolarbearappearedtohavestarvedanddied.starvevi.vt.tosufferordiebecauseyoudonothaveenoughfoodtoeat;tomakesomebodysufferordieinthisway(使)挨饿；饿死

She’s_______________totrytoloseweight.starvingherself

【用法小结】starvemeaningcollocationderivative（衍生词）suffergreatlyfromlackoffoodstarvetodeathstarvesbintodoingsth.bestarvedofsth.starvationpartofspeechverb

Q2:Whatimplicationscanwegetfromthenewsphotoofadeadpolarbearbyreferringtothediagram?ItshowedtheincreaseintemperaturehadanegativeimpactonEarth’secology.ecologyn.therelationofplantsandlivingcreaturestoeachotherandtotheirenvironment;thestudyofthis生态学；社会生态学Ecologyhelpsusunderstandcomplexproblems.Oilpollutioncoulddamagethefragileecologyofthecoralreefs.

Theprefix“eco”

describesomethingasbeingrelatedtoecology.ecosystemecosphere生态学生态学的生态学者生态系统生态圈；生态层ecologyecologicalecologist

ABCDA.Heatenterstheatmosphere.D.Heatistrappedbygreen-housegases.B.Heatwarmsth