阳光分级阅读初二上Hot and Cold Weather 课件

HotandColdWeather

天气冷暖知多少

阳光英语初二上

11Whatisthebookmainlyabout?Whatcanyouseeonthecover?ReadthecoverWhatisthetypeofthebook?A.astorybookB.asciencebook

非故事类文本/科普类文本Haveaguess√Non-fictionWhataffectstemperature?Whattemperatureaffects?ReadthecontentThebookcanbedividedintotwoparts.Whatisthemainideaofeachpart?

TheSeasonsP2-5Thinking:Whatcausestheseseasons?SummerAutumWinterNorthPole

SouthPole

TheEquater

AxisTheEarthArcticAntarcticTilt

Latitude地轴倾斜北极北极地区纬度

赤道南极地区南极

Revolutionaroundthesun

地球公转

Whenthe

istiltedtowardsthesun,theNorthernpartoftheworldhas

anditis

inthesouth.

NorthPoleReadP4-5summerwinterDoeseveryonehavesummerandwinter?P6-9

Thesun’srayshittheEarth

directly.

Thesun’srayshittheEarthatalowerangle.

Latitude纬度

ifclosertotheequater

ifclosertothetwopoleswarmercolderDoesthetemperaturechangeinaday?How?DailyTemperatures(P10-11)Inthemiddleoftheday,itis

,because...

Inthemorning/evening,itis

,because...

warmercoolerdirectlyoverheadslantingraysTheAtmosphereP12-141.Whatistheatmosphere?Thelayerofairaroundtheearth.2.Whatwouldhappenwithoutit?burninghotfreezingcold大气Howdoestheatmosphereaffectthetemperature?P12-14TimeWhat’sitlike

Whatdoesitdo?DuringthedayAtnightfilterblanketkeeptheheatoutkeepthewarmthinClouds,Smoke,DustandAsh(P15-17)

thesunandmakethetemperature

.lessheatgoupintospaceHowdotheyaffectthetemperature?

lesswarmthreachtheEarthcoolerblotoutWhatelseaffectstemperature?P18-21FactorsHowthehigheryougo,the

youget.colder

daysand

nightsAltitudeDistancefromtheseaDesertinsummer,

inlandand

onthecoast.warmercoolerfreezinghot高处不胜寒

海拔高度MakeasummaryWhattemperatureaffects?P22-23moisturewaterfrost,iceWhatformsdoeswaterhave?Howdoeswaterchangefromoneformtoanother?

Whatelsedoesthetemperatureaffect?GroupdiscussionWhichfactordoyouthinkcanbechangedbyhumans

FurtherthinkingHowcanhumanschangeit?Itisimportanttoachieveharmonybetweenhumanityandnature！

人与自然和谐共生Self-assessment(自我评价)Stars1.Talkaboutwhataffectstemperatureandwhattemperatureaffects.2.Thinkaboutthechangingweather.3.knowhowtoreadasciencebook.Tips:Excellent!Great!Comeon!Finishassessment

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