新概念第三册-Lesson55教学文案.ppt

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1、新概念第三册-Lesson55NASA(NationalAeronauticsandSpaceAdministration)美国航空航天局Lesson55Fromtheearth:GreetingsLingDoyoubelieveinaliens?Watchtheviedo.Question:Doyoubelieveinaliens?FROMTHEEARTH:GREETINGSWhichlifeformsaremostlikelytodevelopondistantplanet?Itwouldbebacteriaandplantl

2、ife.Whyisitmajorachievementtobeabletofindnewplanetsinspace?Becausetheyare(relativelyspeaking)verysmallanddonotemitlight.Whycan'tallplanetssupportlife?Notallplanetscansupportlifebecauseconditionshavetobejustright:thesizeandbrightnessofitsstar(or'sun')havetobejustright,to

3、o.Whatwillbeoneofthegreatastronomicalprojectsofthetwenty-firstcentury?Itwillbethedevelopmentofatelescopecapableofdetectingthepresenceoflifeondistantplanets.astronomyrelativeinfinitelysolarVenusMarsorbit    astronomicalgenerateparticleJupiterblotanalysebacteriaoxygenr

4、ealmendeavourNewwordsandexpressionsTheSolarSystemorbitsolaradj.太阳的；太阳能的~system太阳系~radiation太阳辐射~cell太阳能电池lunaradj.月球的；月亮的a~eclipse月食atotalsolareclipseatotallunar~apartialsolar~apartiallunar~全食，偏食orbitn.(天体等运行的）轨道beputinto~aroundtheearth被送上了环绕地球的轨道（人、组织等的）影响范围、势力范围come/f

5、all/bewithinsb's~进入/落入/属于某人的势力范围v.~(around)sth沿轨道运行；围绕...运动e.g-Theearthtakesayeartoorbitthesun.astronomyn.天文学astronomicaladj.天文学的;(数量、价格等）极其巨大的e.g-Thefiguresare~.这些都是天文数字。astronomern.天文学家Wordsrelatetoastronomy:astrology占星学astronaut宇航员astrophysics天体物理学BigDipper北斗七星cluste

6、r星团constellation星群，星座cosmos宇宙cosmology宇宙学galaxy星系milkyway银河系meteor流星nebula星云polestar北极星revolution公转rotation自转astro-:starCloseyourbookandlistenagain.RecentdevelopmentsinastronomyhavemadeitpossibletodetectplanetsinourownMilkyWayandinothergalaxies.detectv.发现，查明detectablead

7、j.察觉得到的detectiven.侦探make使变得，使成为“make+宾语+宾语补足语”小结：一、“make＋宾语＋n.”意为“使、让某人/某物(成为)……”。如：e.g-Wemadehimcaptainofourfootballteam.我们推选他作我们足球队队长。二、“make＋宾语＋adj.”意为“使某人/某事(变得)……”。如：e.g-Thenewsthatourteamhadwonmadeusveryhappy.我们队赢了的消息使我们大家非常高兴。三、“make＋宾语＋dosth.（不带to的不定式）”意为“使某人做某事

8、”。如:e.g-Ourteachermakesusfeelmoreconfident.老师使得我们感到更自信了。四、“make＋宾语＋Ｖ-ed（过去分词作宾补）”这个结构指宾语接受后面的那个动作，表示被动的意思，意为“使