【突破极限】人教版高中英语必修3教学课件： Unit 4 Astronomy the science of the stars Unit 4 Section One.ppt

unit4astronomy thescienceofthestars warmingup whatarethenamesoftheeightplanetsthatcircleoursun 土星saturn 天王星uranus 金星venus 地球earth 火星mars 木星jupiter 海王星neptune 水星mercury thesun doyouknowanyquestionsthatastronomersareinterestedin howdidtheuniversebegin howdidlifebegin istherelifeonotherplanets arethereotherlifeformsintheuniverse whathappenedtoallthematterafterthe bigbang whatare blackholes 1 theoriginoflifeonearthisaquestionthatinterestsastronomers whatdoyouknowaboutit howoldistheuniverse severalbillionyearsago howoldistheearth between4 5and3 8billionyearsago whichwerethefirstcreaturesorplantsonearth extremelysmallplants pre reading 2 eachreligionandculturehasitsownideasabouthowlifebeganonearth whatdoyouknow inchina weallknowthatpanguseparatestheskyfromtheearthandnvwamadehumans panguseparatestheskyfromtheearth 中国神话传说中有盘古开天地的说法 巨人盘古用一把利斧劈开混沌 将天地分开 死后 他的气息化成风和云 声音变成轰轰的雷声 左眼化为太阳 右眼化为月亮 手足与四肢变成大地的四极与五方的名山 血液化成江河 筋脉铺成道路 肌肉形成田地 须发成为星星 牙齿和骨骼化为金属 珍珠 玉石 汗水成为滋润万物生长的甘霖和雨露 nvwamadehumans otherlegendsaboutthebeginningofuniverse thebiblicalaccount day1 godspokeandseparatedlightfromdarknesscreatingdayandnight day2 godspokeandseparatedthewatercreatingskyandocean day3 godspokeandcreateddryland day4 godspokeandcreatedthesun moonandstars day5 godspokeandcreatedlivingcreaturesintheairandsea day6 godspokeandcreatedthelandanimalsandman day7 godrestedandblessedthisdaycallingitholy howlifebeganontheearth bigbang otherbodies stars earth acloudof atoms dust summary asolid theearth s other4 water tothedevelopmentoflife watervapour nitrogen carbon extremelysmall onthesurfaceofthewater globe gases atmosphere fundamental plants early andallsortsoffish greenplantsonland landanimals insects amphibians hugeanimals dinosaurs theriseof humanbeings shellfish reptiles mammals comprehending readthepassagecarefullyandanalyseitsstructure writethemainideaforeachparagraph para 1theformation 形成 oftheearth para 2theimportanceofwaterforlife para 3awidelyacceptedtheoryabouttheformationoftheuniverse para 4thearrivalofhumansandtheirimpactontheearth para 5thedevelopmentofplantsandanimalsontheearth theorderofdevelopmentoflife theuniversebeganwitha bigbang theearthwasacloudofdust theearthbecameasolidball waterappearedontheearth smallplantsgrewonthewater shellfishandotherfishappeared plantsbegantogrowondryland insectsandamphibiansappeared reptilesappeared dinosaursappeared mammalsappeared cleveranimalswithhandsandfeetappeared thinkaboutwhatyouhavereadanddiscussthesequestionsinpair 1 whywastheearthdifferentfromotherplanets thewaterremainedontheearth 2 whydidtheplantsgrowbeforetheanimalscame becauseplantsprovideoxygenforanimalstobreathe 3 whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth 4 thereusedtobenineplanetsinthesolarsystem recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet doyouknowthenameofthatplanet doyouknowwhytheyremovedit pluto scientistsnowthinkitistoosmalltobecalledaplanet 5 whatproblemiscausedbyhumanbeings humanbeingscausedglobalwarming readthepassageagainandunderlineallthediscoursemarkersandsentenceconnectors discoursemarkers however next afterthat later finally thus asaresultofthissentenceconnectorsorconjunctions and but because