Unit 3 Reading and Thinking阅读学案-高中英语人教版选择性必修第三册

Unit3EnvironmentalProtection

ReadingandThinking

Climatechangerequirestheworld'sattention

课型：新授课课时：2课时

班级:姓名:小组:

【学习目标】

leachingObjectives：

1.Toexplaincausesandnegativeeffectsofglobalwarming

2.Torealizetheimportanceofcuttinggreenhousegasesandtakeeffectiveaction

todoit

3.Tolearntoidentifythestyleofthistextandinferthewriter'spurpose

I.了解感知

1.Whatcausestheclimatechange?

2.Whatarethesolutionstostopclimatechange?

II.深入学习

Step1Pre-reading

Task1.Readthepicturesandanswersomequestions:

①Whatisthegraphabout?Whatinformationcanyougetfromit?

(2)Whathappenedinthepicture?Doyouknowwhatcausedit?

Task2.根据课文内容选择正确答案

①Whattypeofwritingisthispassage?

A.ArgumentativewritingB.Narrativewriting

C.ExpositorywritingD.Advertisingwriting

②Inwhichpartofanewspaperormagazinemaywefindthispassage?

A.EntertainmentB.Economy

C.EducationD.Environment

Task3.Readthetextandsumupthemainideaofeachparagraph

Paral:Globalclimateis.

Para2:Anaboutabearstarvedtodeath

Para3:Whatiscausingtheincreaseintheglobal

temperature

Para4:Theoftheriseintemperatureandthewarning

Para5:Furtherpossiblechangestotheandourduty

Step2.Whilereading

Task1.Structure

PartPara.Mainidea

11-2The_____________ofdramaticclimatechangethathadanimpac

onEarth'secology

23The___________oftheincreaseintheglobalaveragesurfac

temperature

34

The__________oftheriseintemperature

45

The____________toreducinggreenhousegasemissions

Part1Evidence

1.Whathappenedtothepolarbearinthephoto?Whydidthewriterwriteabout

it?

/Thepolarbearinthephoto.

/Becauseitshowedoneoftheeffectsofdueto

climatechange.

2.Canyouuseyourwordstodescribehowclimatechangehaveinfluencedthe

polarbear'slife?

Climatechangebearscouldnothuntha

totravelgreaterdistancestofindfoodstarvedtodeathitsdead

bodyfound

Part2Cause

1.Whyisthe“natural“greenhouseeffectimportantandnecessary?

The“natural“greenhouseeffectisimportantbecause

2.theconsequencesofhighgreenhousegas:

3.Figureoutthereasonwhyearth'stemperaturerising.

Part3consequences

1.Theconsequencesofglobaltemperaturerise:

Y

2.Whydidtheauthormentiontheclimatescientists9warning?

Theauthormentionedtheclimatescientist'swarningbecauseitisessentialthat

weanditneedstobebroughtto

3.Whatistheauthor'spurposeofwritingthistext?

Part4solutions

Asindividuals,whatcanwedoinourdailylifetohelptominimizeclimate

change?

Step3.Post-reading

Choosetherightitemfromtheboxtomakethesummarycomplete.Change

theformwhennecessary.

Starve,natural,ecology,naturaldisaster,carbonfootprint,fossilfuel

Warmingoceans,meltingiceandrisingsealevelsproveclimatechangeis

happening.ItsshockingimpactonEarth's1.couldbeseenina2013

photoofapolarbearontheNorway'sArcticislandofSvalbardthathad2.

todeath.Unabletohuntsealsasbefore,scientistsconcludedlowsea­

icelevelsduetoclimatechangehadforcedittotravellongdistancestofindfood.

Whenexplainingclimatechange'scauses,scientistsoftentalkabouttwotypes

of“greenhouseeffect"—"3."and"man-made."Asthesunwarms

earth,greenhousegasesintheatmospheresuchasmethaneandcarbondioxide

trapsomeheatin,makingEarthwarmenoughtoliveon.Extraman-made

greenhousegasesfromburning4.trapevenmoreheatinthe

atmosphere,leadingtoextremeweatherand5..Scientists

warnofmoredisasterstocomeifthisman-madeglobalwarmingisnotstopped.

Bothgovernmentandindividualactionsarer