Module3Unit2 We have not found life on any other planets yet.教案.ppt

Module3JourneytospaceUnit2Wehaven tfoundlifeonanyotherplanetsyet Chang ehasgonetotheMoon Isshealone 单独的 Whatdoyouthinkof 想到 whenyouseetheMoon AstronautshavealreadybeentotheMoon HavetheydiscoveredanylifeontheMoon Why So Peopleandthingscan tgrowthere TheMoondoesn thaveanenvironmentwithair 环境 生长 学习目标 1 熟记重点单词 none environment solar system group galaxy universe light impossible out communicate2 掌握重点短语 hundredsofmillionsof solarsystem intheuniverse farenough inspace goaroundthesun becalled haveto communicatewith3 掌握重点句型 现在完成时 主语 have has 动词的过去分词 Fast reading Readthepassagequicklyandchoosethebesttitle Anyoneoutthere LifeontheearthThesunandotherstarsThestarsatnight Careful reading ReadPara 1andchoosethebestanswer 1 ScientiststhinkthattherehasbeenlifeonEarthfor years A thousandsofB millionsofC billionsof2 Havewefoundlifeonotherplanets A Yes wehave B No notyet C No theyhaven t galaxy planet star universe 太阳 1 2 3 4 5 solarsystem ReadPara 2 Doyouknowthewordsandexpressionsinthebox Puttheminorder small large galaxyplanetsolarsystemstaruniverse planet star solarsystem galaxy universe ReadPara 2 thencompletethesentences TheEarthisa anditgoesaroundtheSun Thereare otherplanetsaroundtheSun 2 TheSunisastar TheSunanditsplanetsarecalled 3 TherearebillionsofstarsintheGalaxy Thesolarsystemisasmallpartof thesolarsystem planet seven ourgalaxy ortheMilkyWay ReadPara 3 4 thencheckthetrue T statements Thereismorethanonegalaxyintheuniverse Thelightfromthestarsinothergalaxieshastravelledforashorttimetoreachus Spaceshipshavevisitedmostoftheuniverse F F T ReadPara 5 answerthetwoquestions1 Hasanyonediscoveredlifeinspace 2 Doyouknowwhetherthereislifeinspaceornot Noonehasdiscoveredanylifeinspaceyet Wedon tknow yet ScientiststhinkthattherehasbeenlifeontheEarthforhundredsofmillionsofyears However wehavenotfoundlifeonanyotherplantsyet Readthepassage TheEarthisaplanetanditgoesaroundthesun Sevenotherplanetsalsogoaroundthesun Noneofthemhasanenvironmentlikethatoftheearth soscientistsdonotthinktheywillfindlifeonthem Thesunanditsplanetsarecalledthesolarsystem andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets calledtheGalaxyortheMilkyWay TherearebillionsofstarsintheGalaxy andoursunisonlyoneofthem Scientistshavealsodiscoveredmanyothergalaxiesintheuniverse Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus Sohowlargeistheuniverse Itisimpossibletoimagine ScientistshavesentspaceshiptotheplanetMarstotakephotos Theyhaveevensentspaceshipstotraveloutsidethesolarsystem However nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy Completethepassagewiththewordsandexpressioninthebox Istherelifeonotherplanets Therearesevenotherplanetsinour 1 but 2 ofthemhasa n 3 likethatoftheearth solarsystem none environment Spaceshipsfromtheearthhavedonesurveysoftheotherplanets buttheyhavenotfoundanylifethere Whyhasnoonefromotherplanetstriedto 4 withus Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe 5 yet butsomescientistsbelievethattheywillfinditsomeday communicate universe 生物 UFO E T superman Doyoubelieve 相信 thereareanylivingcreaturesinouterspace Writing We vejustheardamessagefromaspacecraft OurspacecrafthaslandedonMars and ithasdiscoveredpeopleonMars Thesepeoplehaven tsentusamessagebecausetheycan thearus Theyhaven tvisitedtheEarthbecausetheypreferlifeonMars TheyhavemadeTVs radiosandcarswiththeotherspacecraftfromEarth none environment solar systemgroup galaxyuniverse lightimpossible outcommunicate 本课时主要单词 hundredsofmillionsof intheuniversefarenoughinspacegoaroundthesunbecalledhavetocommunicatewith 本课时主要短语 1 However wehavenotfoundlifeonanyotherplanetsyet 2 Noneofthemhasanenvironmentlikethatoftheearth 3 Scientistshavealsodiscoveredma