高中英语 Unit 4 Astronomy the science of the stars Reading1课件 新人教版必修3.ppt

unit4astronomy thescienceofthestars pre reading doyouknowhowourlifebeganontheearth doyouknowanyancientideaaboutthebeginningoftheuniverse 盘古开天辟地女娲补天造人 inthewesternculture whocreateseverythingintheworld thegod howlifebeganontheearth reading scanning 1 whatisthemainideaofthetext 2 whichparagrapharethequestionsmentionedin 1 howoldistheearth 2 howdoestheuniversebegin 3 isthereanywaterinthemars 4 whendiddinosaursdisappear 5 whichanimalisthemostimportantoneontheearth para 4 para 2 para 3 para 5 para 1 howlifebeganontheearth passagestructure mainbody para1 para2 para3 para4 para5 awidelyacceptedtheoryabouttheformationoftheuniverse theformationoftheearth theimportanceofwaterforlife thedevelopmentofplantsandanimalsontheearth thearrivalofhumansandtheirimpactontheearth readthepassagecarefullyandanalyseitsstructure earth atmosphereandwater lifedevelopment humanbeings carefullyreading ainsectsandamphibiansappeared bdinosaursappeared ctheearthbecameasolidball dsmallplantsgrewonthewater ereptilesappeared fplantsbegantogrowondryland gtheearthwasacloudofdust hwaterappearedontheearth shellfishandotherfishappeared jtheuniversebeganwitha bigbang kcleveranimalswithhandsandfeetappeared lmammalsappeared 5 10 6 2 9 4 8 3 7 1 detailedreading puttheorderofdevelopmentoflifeintoatimeline 12 11 afterreadingthepassage discussthefollowingquestions 1 whywastheearthdifferentfromtheotherplanets 2 whyisitwrongtoshowfilmswithdinosaursandpeopletogether 3 whatproblemiscausedbyhumanbeings 2 whyisitwrongtoshowfilmswithdinosaursandpeopletogether 1 whywastheearthdifferentfromtheotherplanets becausethewaterremainedontheearth becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth 3 whatproblemiscausedbyhumanbeings humanbeingscausesglobalwarming afterthe bigbang theearthwasfullofwater originalcellsappearedintheocean thecellsinthewaterbegantoseparate marineanimalscameintobeing someanimals amphibian insects cametoland reptileappeared dinosaurs mammals manhadevolvedfromapes theydevelopednewmethodsofgrowingfood huntingandmovingaround astimewentbytheycoveredtheearthandhavebecomethemostimportantanimalsontheplanet afterthe bigbang theearthwasstilljustacloudof it loudlywithfireandrock whichwere toproducethe watervapourandothergases then begantoappearedontheearth inwaterareconsideredtobetheearliestlivesontheearth theo2theysuppliedencouragedthelivesof slowlygreenplantsgrewonland whichwerefollowedby likeinsects whentheplantsgrewinto appeared then developedbutdisappearedlater whichmadetheriseofatotallydifferentanimal possible andfinally spreadallovertheworld dust exploded intime carbon water summary thesmallplants shell fishandfish landanimals amphibians forests reptiles dinosaurs mammal humans asastudent whatlittlethingscanwedofortheearth discussion solarenergy planttrees recyclerubbish preventdesertification savewater purifyair designanactivityonearthday whattheactivityisaboutwhytheactivityisdesignedwhenandwheretodotheactivitywhotakesp