最新必修三Unit4-reading教学讲义PPT课件.ppt

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1、必修三Unit4-readingUranus天王星Venus金星Earth地球Mars火星Mercury水星Neptune海王星Saturn土星Jupiter木星Quiz:InoursolarsystemeightplanetscirclearoundtheSun.Whatarethey?Matchthenameswiththeplanets.FastreadingReadthepassagequicklyandfindthemainidea.Abriefintroductiononhowtheuniversedevelopedandh

2、owlifebeganontheearth.4.Whichkindoflife-beingfirstappearedontheearth,plantsoranimals?Why?Atfirst,smallplantsbegantoappearonthesurfaceofthewater,theyproduceoxygen,whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.5.Whyweremammalsdifferentfromalllifeforms

3、inthepast?Theyweredifferentbecausetheyproducedtheiryoungfromwithintheirbodiesandproducemilktofeedthem.Letreviewtheevolutionoflifeontheearth.Afterthe“BigBang”,theearthwasfullofwater.Originalcellsappearedintheocean.Thecellsinthewaterbegantoseparate.Smallplantscameintobeing

4、.EarlyshellfishandallsortsoffishSomeanimals(amphibian&insects)cametoland.Reptileappeared.dinosaursmammalsManhadevolvedfromapes.Wearemakingtheworldbetter.Wearemakingtheworldworse.DiscussionBecausetheyareputtingtoomuchcarbondioxideintotheatmosphere.Theearthmaybecometoohott

5、oliveon.Theearthisbecominghotterandhotter!solarenergyplanttreesrecyclerubbishsavewaterpurifyairWhatcanwedototakecareoftheearth?Whetherlifewillcontinueontheearthdependsonhumanbeings.政府接待礼仪制作者：刘慧时间：2014-7-15一、政府接待礼仪之座次安排领导为单数时，主要领导居中以左为尊123453领导为双数时，主要领导居中以左为尊二、宴席座次“以右为上”。

6、当餐桌有左右之分时，应以面向门的右侧之餐桌为上桌。“内侧为上”。当餐桌距离餐厅正门有远近之分时，一般以距门较远的餐桌，即靠内侧的餐桌为上桌。亦称“以远为上”。“居中为上”。当多张餐桌排列时，一般居中央者为上。主陪副陪1243门口门口三、仪式的座次签字双方主人在左边，客人在主人的右边。客主四、乘车的座次司机主人五、合影座次安排与主席台座次安排相同——以左为尊注意：政界的会议以左为尊，商界的会议以右为尊。（政界）开会以左为上，（政商）吃饭以右为上。国际礼仪以右为尊。谢谢观看！