高二英语选修6 unit 4教案1.doc

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教案1Unit4Globalwarming
Warmingup&Listening
Teachinggoals
Enablethestudentstoknowsomethingaboutenergyresourcesandsomethingthatuseenergy,andlistenfordetailsandcatchthespecificinformationasmuchaspossible.
Learningabilitygoals
Enablethestudentstopredictsomeimportantinformationintheprocessoflisteningandencouragethestudentstotalkaboutthesituationsaccordingtothelisteningmaterials.
Teachingimportantanddifficultpoints
Howtomakesuretheanswersoflisteningmaterial.
Teachingaids
Arecorderandcassettetapes,aprojector,andacomputer
Teachingprocedures
Step1Warmingup
Doyouknowanykindofenergyresource?
Doyouknowanythingthatuseenergy?
thingsthatuseenergyinahouse
(Slideshow:somepicturesofthingsthatuseenergyinahouse.)
ThingsthatuseenergySourcesofenergylights
television
cassetteplayer
computer
fridge
stove
washingmachine
hairdryer
videorecordercoaloil
naturalgas
wind(power)
sun(solarenergy)
water(hydro-electricpower)
thesea(tidalenergy)
uranium(nuclearenergy)
plantwaster(biomassenergy)T:Nowlet’slookatsomemorepicturesanddecidewhethertheyarerenewableor
not.
(Slideshow:picturesofsomeformsofenergy)
windenergyrenewable
solarenergyrenewable
hydroelectricpowerrenewable
geothermalenergyrenewable
tidalenergyrenewable
biomassenergyrenewable
nuclearpowerplant,non-renewable(picture)
anoilrefinery(精炼厂),non-renewable(picture)
coalpowerstation,non-renewable(picture)
naturalgasnon-renewable(picture)
uraniumOre(铀矿石)non-renewable(picture)
Theelementuraniumdoesnotoccurinpureforminnaturebutisfoundinmineralssuchascarnotite（钒钾铀矿）,picturedabove.(picture)
Conclusion
non-renewable
coaloilnaturalgasUraniumfossilfuels
renewable
wind(windpower)sun(solarenergy)water(hydro-electricpower)
plantwaste(biomassenergy)hotspringsorgeysers(geothermalenergy)
thesea(tidalenergy)
Slideshow
Whatarefossilfuels?
Ancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.
Alsoknownasnon-renewableenergybecauseoncetheyareusedtheyhavegone
forever;theyc