选修6unit4-Globalwarming-reading省名师优质课赛课获奖课件市赛课一等奖课件.pptxVIP

选修6unit4-Globalwarming-reading省名师优质课赛课获奖课件市赛课一等奖课件.pptx

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Unit4GlobalWarmingTheEarthIsBecomingWarmer–ButDoesItMatter?

Workingroups---listthingsasrequired:1.Thingsthatconsumeenergyaroundusoratanyotherplaces.2.SourcesofenergyWarmingup–I(3m)

ThingsthatuseenergyInahouse

ThingsthatuseenergySourcesofenergylightstelevisioncassetteplayercomputerfridgestovewashingmachinehairdryervideorecordercoaloilnaturalgaswind(power)sun(solarenergy)water(hydro-electricpower)thesea(tidalenergy)uranium(nuclearenergy)plant(biomassenergy)

Windmills,renewable.What?Renewable?Warmingup–P25

What?Renewable?Acoalpowerstation,non-renewable.

What?Renewable?Anoilrefinery(精炼厂),non-renewable.

What?Renewable?Anuclearpowerstation,non-renewable.

solarpanelsrenewableWhat?Renewable?

What?Renewable?Ahydro-electricdam,renewable.

Geothermal(地热旳)EnergyPlant

Whatisthegreenhousemadeofandusedfor?Whatisthis?

Thesun.

Greenhouse

Howdoesitwork?Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthecoldperiod.

QuestionsWhatisgreenhouseeffect?

greenhouseeffect

Carbon-dioxide

Theleadinggassesare:Carbon-dioxideMethaneOzone(O3)NitrousOxide(N2O)Whichgreenhousegasesdoyouknow?

Astheearthisbecomingwarmer,therearemanydisasters.

tsunamiTheriseofthesealevel

floodssnowdisasterfaminesthespreadofdiseases

droughts

Listentothetapeandfindoutthemainideaofthepassage:Reading

Part1(Paragraphs1)Part2(Paragraphs2-5)Part3(Paragraphs6)Introduceadebateovertheissueofglobalwarming.Describehowglobalwarmingcomesabout.Listtwodifferentattitudesamongscientiststowardsglobalwarming.

Part4(Pa7)It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.

Choices.1.Whofoundouttheamoun

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