浙江省临海市杜桥中学高中英语 unit4 Reading 新人教版必修3.ppt

unit4astronomythescienceofthestars reading howlifebeganontheearth warmingup whatarethenamesoftheeightplanetsthatcircleoursun 海王星neptune 水星mercury 金星venus 地球earth 火星mars 木星jupiter 土星saturn 天王星uranus aquizgame 1 howoldistheearth a about3 5billionyearsb about4 5billionyearsc about5 5billionyearsd about6 5billionyears2 oftheearthsurfaceiscoveredbywater a 20 b 30 c 50 d 70 3 howmanyplanetsarethereinthesolarsystem a 6b 7c 8d 94 whatisthetotalpopulationofhumansontheearth a about3 5billionb about4 5billionc about5 5billiond about6 5billion 5 howlongdoestherotation 自转 oftheearthtake a 12hoursb 24hoursc amonthd 365days6 whichcontinentisthesmallest a africab northamericac southamericad oceania7 onwhatdayistheearthdaycelebrated a april22b may4c august21d november11 8 whichoceanisthelargest a thepacificoceanb thearcticoceanc theindianoceand theatlanticocean9 whichcountryhasthelargestarea a canadab chinac russiad u s a prediction lookatthepicture doyouknowthetopicofthisunit 海洋里的细胞开始分裂 登陆 爬行动物 恐龙 mammals 人类的兴起 doyouknowwhatitwaslikebeforelifeappearedonearth 可以演化成低级生命的小液滴水泡状的太空原始生命体 itwasfullofwater 1 whatdowemeanwhenwesaywearestudyingasubjectscientifically orwhat sthecorrectattitudetowardsscience weshouldbeobjective notsuperstitious answerthesequestions 2 what sthecorrectwaytoproveascientificidea weshoulddesignexperimentstotestitforseveraltimes thenwecananalyzetheresultsanddrawaconclusionatlast 3 whatarethemostimportantskillsweneedtoberealscientists careful objectiveandlogical drawconclusionsfromtheexperimentsandnotimposeconclusionsonthedata impose on 把 强加于 1 theoriginoflifeonearthisaquestionthatinterestsastronomers whatdoyouknowaboutit howoldistheuniverse severalbillionyearsago howoldistheearth between4 5and3 8millionyearsago whichwerethefirstcreaturesorplantsonearth 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 indiabrahmaisthegodfirstrepresentedinthehindutriad heisthecreatoroftheuniverseandalllivingbeingsaresaidtohaveevolvedfromhim bigbang gas newstars dyingstars remnants 平面图 太阳系 地球大气 1 whendidthe bigbang happen ithappenedseveralbillionyearsago scanning readthepassagequicklyandanswerthequestions 2 whatformwastheearthafterthe bigbang theearthwasstilljustacloudofdust 3 whatmadeuptheearth satmosphereaftertheearthexploded carbon nitrogen watervapourandothergases 4 howdidwatercomeintobeingontheearth astheearthcooleddownafteritexploded watercameintobeing 5 what sthesignificanceofthepresenceofwaterontheearth itallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas 6 whatwasimportanttothedevelopmentoffish oxygen 7 whatmadepossibletheriseofmammalsontheearth thedisappearanceofdinosaursmadethepossibletheriseofmammalsontheearth 8 whyaremammalsdifferentfromalllifeformsinthepast theygavebirthtoyoungbabyanimalsandproducedmilktofeedthem carefulreading i readthepassagecarefullyandmatchthemainideawitheachparagraph para 1theformation 形成 oftheearth para 2theimportanceofwaterforlife para 3awidelyacceptedtheoryabouttheformationoftheuniverse para 4thearrivalofhumansandtheirimpactontheearth para 5thedevelopmentofplantsandanimalsontheearth ii answerthefollowingquestions 1 whywastheearthdifferentfromotherplanets thewaterremained 2 whydidtheplantsgrowbeforetheanimalscame becauseplantsprovideoxygenforanimalstobreathe 3 whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth 4 whydoyouthinkthathumansarethecleverestanimalsontheearth theyarethecleverestanimalsbecausetheyhavelargerbrainsthananyothercreatureontheearthsofar 5 thereusedtobenineplanetsinthesolarsystem recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet doyouknowthenameofthatplanet doyouknowwhytheyremovedit pluto scientistsnowthinkitistoosmalltobecalledaplanet 6 whatproblemiscausedbyhumanbeings theycauseglobalwarming iii fillintheblanksinthefollowingform atoms violent atmosphere presence acids oxygen shellfish amphibians reptiles existed gavebirthto clever dioxide iv true t orfalse f 1 theearthappearedbeforethebigbanghappened 2 theoriginalatmosphereconsistedofnitrogenandoxygen 3 themaindifferencebetweentheearthandotherplanetsisthatthereiswaterontheearth 4 lifebeganinwaterandthenonland f f t t 5 mammalsappearedbeforethedevelopmentofdinosaurs 6 dinosaurscouldgivebirthtoyoungbabyanimalsandproducedmilktofeedthem 7 humanbeingsproducetoomuchcarbondioxidewhichcausestheglobalwarmingontheearth 8 accordingtothetext humanbeingswoulddisappearintheend f f t f howlifebeganontheearth bigbang otherbodies stars earth acloudof atoms dust summary asolid theearth s other 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 wehaveonlyoneearth speaking whatshouldwedoforourearth youcanusethefollowingwordsorphrasestohelpyou prevent from har