必修三Unit4AstronomythescienceofthestarsWarmingupandPrereadingandReading.ppt.ppt

unit4astronomy thescienceofthestars zoe zoudongpumiddleschool whatsubjectsdoyoulearnatschool chineseenglishmathematicsphysicshistory geographyphysicsbiologychemistry brainstorming geophysics地球物理学 biochemistry doyoulikeastronomy doyouwanttobeanastronomer doyouknowsomefamousastronomers whatdoyouknowaboutastronomy astronomyisthescientificstudyoftheuniverseandtheheavenbodies suchasthesun themoon andstars gas anddustwithinit warmingup inoursolarsystemthereareeightplanetscirclingaroundthesun lookatthepicture whatarethey canyoumatchthenameswiththeplanets uranus天王星venus金星earthmars火星mercury水星jupiter木星neptune海星saturn土星 mercury venus earth mars jupiter saturn uranus neptune let sappreciatesomebeautifulpicturesofthesolarsystem totallunareclipse 月全食 totalsolareclipse 日全食 meteorrain 流星雨 comet 彗星 whatinterestsyouinastronomy doyouknowanyquestionsthatastronomersareinterestedin howdidlifebeginonearth howwastheuniverseformed pre reading istherelifeontheplanets eachreligionandculturehasitsownideasabouthowlifebeganonearth whatdoyouknow aretheytrueforthebeginningofthelife panguseparatedthesky盘古开天 nvwacreatedhumans女娲造人 godcreatedtheworld上帝创世论 panguseparatestheskyfromtheearth legend thegoddessnuwamendedtheheavenandcreatedhumanbeingsfromtheclay 粘土 女娲补天 accordingtobible 圣经 godcreatedtheworldandthefirstman adam 亚当 andthefirstwoman eve 夏娃 godcreatedtheworldinsevendays religiousbeliefs day1 godspokeandseparatedlightfromdarkness creatingdayandnight day2 godspokeandseparatedthewatercreatingskyandocean day3 godspokeandcreateddryland day4 godspokeandcreatedthesun themoonandstars day5 godspokeandcreatedlivingthingsintheairandsea day6 godspokeandcreatedthelandanimalsandthefirstman day7 godrestedandcalledthisdayholy 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 howlifebeganontheearth how lifebegan ontheearth reading readthetitleandlookatthepictures predictwhatthereadingwillbeabout scientifictheories famousscientistssuchasnewton einsteinandstephenhawkinghadtheirowntheoryabouttheoriginoftheuniverse theuniversebeganfromthebigbang lifefirstbeganintheseaontheearth lifewasbroughttotheearthbyetfromouterspace lifecamefromacometwhichhittheearth fastreading1 matchthemainideaofeachparagraphpara 1theformation 形成 oftheearth para 2theimportanceofwaterforlife para 3awidelyacceptedtheoryabouttheformationoftheuniverse para 4thearrivalofhumansandtheirimpactontheearth para 5thedevelopmentofplantsandanimalsontheearth 2 themainideaofthetext thetextmainlytellsusthe oftheearthandthe oflifeonit formation development readthepassageagainandputtheorderofdevelopmentoflifeintoatimelineaccordingtothereadingpassage exercise2onpage27 scanning 1 insectsandamphibiansappeared 3 theearthbecameasolidball 5 reptilesappeared 7 theearthwasacloudofdust9 shellfishandotherfishappeared 11 cleveranimalswithhandsandfeetappeared 2 dinosaursappeared 4 smallplantsgrewonthewater 6 plantsbegantogrowondryland 8 waterappearedontheearth10 theuniversebeganwitha bigband 12 mammalsappeared 8 3 10 9 11 5 1 7 4 12 6 2 canyouputtheorderofdevelopmentoflifeintoatimeline ex 2onp27 while reading readthepassageaslisteningtothetape andthenanswerthefollowingquestions skimming questions howdidtheuniversebeginaccordingtoawidelyacceptedtheory 2 whatwasproducedwhentheearthexploded 3 whyiswaterimportantontheearth 4 whydidgreenplantshelplifetodevelop 5 whyweremammalsdifferentfromotherlifeforms 6 what stheproblemwiththeearthnow 1 howdidtheuniversebeginaccordingtoawidelyacceptedtheory para 1 theuniversebeganwithabigbang 2 whatwasproducedwhentheearthexploded para 2 carbon nitrogen watervapourandothergases 3 whyiswaterimportantontheearth para 3 itallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas 4 whydidgreenplantshelplifetodevelop para 4 becausegreenplantscantakecarbondioxidefromtheatmosphereandfilltheairwithoxygen 5 whyweremammalsdifferentfromotherlifeforms para 4 becausetheygavebirthtoyoungbabyanimalsandproducedmilktofeedthem 6 what stheproblemwiththeearthnow para 5 theearthmaybecometoohottoliveon detailedreadingthistextcanmainlydividedintotwoparts part1 thedevelopmentoftheearthpart2 thedevelopmentoflife para1 3 para4 5 part1 thedevelopmentoftheearth 1 afterthebigbang whatwastheearthlike acloudofdust asolidglobe explodedwithfireandrock producedwatervapourandgases 2 whathappenednext 3 whatdidthewatervapourandgasesform theearth satmosphere waterappeared 4 whatappearedastheearthcooleddown waterisimportantforthebeginningoflifeontheearth whyiswatersoimportantforthebeginningoflife becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas part2thedevelopmentoflife smallplantsappearsinwater 1 whatlifedevelopedafterwaterappeared shellfishandallsortsoffish 2 whatlifedevelopedinwaternext greenplantsbegantogrowonland insectsappeared 3 whataboutthelifeonland reptilesappeared dinosaurdeveloped 5 whatlifedevelopedafterforestsappeared mammalsonland 6 whatlifedevelopedafterdinosaurs smallcleveranimals 7 whatlifedevelopedaftermammals summary afterthe bigbang theearthwasstilljustacloudof it loudlywithfireandrock whichwere toproducethe watervapourandothergases then begantoappearedontheearth dust exploded intime carbon water inwaterareconsideredtobetheearliestlivesontheearth theo2theysuppliedencouragedthelivesof slowlygreenplantsgrewonland whichwerefollowedby likeinsects whentheplantsgrewinto appeared then developedbutdisappearedlater whichmadetheriseofatotallydifferentanimal possible andfinally spreadallovertheworld shell fishandfish amphibians forests reptiles dinosau