BBC英语六分钟-每天坚持口语Life on Mars.doc

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BBC英语六分钟-每天坚持口语Life on Mars.doc

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LifeonMars

BBC英语六分钟练起来（2023.03.05）

Transcript

Note:Thisisnotaword-for-wordtranscript

Sophie

Helloandwelcometo6MinuteEnglish.ImSophie…

Neil

AndImNeil.Sophie–didyouseethebeautifulskylastnight?

Sophie

No,Iwenttobedearly.Why?

Neil

Iwaswonderingiftherewaslifeoutthere.

Sophie

Youmeanlifeonotherplanets?Thatsjustsciencefiction,Neil.

Neil

Itisnt!Peoplearefascinatedbylifeonotherplanetsforagoodreason.

Sophie

Youbelieveinlittlegreenmen?

Neil

Notnecessarily…butpossibly.

Sophie

Well,Marsisourclosestneighbourinthesolarsystemandthesubjectoftodaysshow.Andthatbringsmeontoourusualquizquestion.HowlongisadayonMars?Isitabout…

a)5hours?

b)25hours?

Orc)45hours?

Neil

AndIthinkitmustbec)45hours.Thingsareweirdonotherplanets.AndMarsisfurtherfromthesunthanus…Marsmaybeourclosestneighbour,butitshardlyinourbackyard,isit?

Sophie

Itisinastronomicalterms,Neil–itsvisibleto?thenakedeye?–meaningwithoutusinginstruments–anditsreachablebyspacecraft.Well,we’llfindoutlateronintheshowwhetheryougottheanswerrightornot.NowcanyoutellmeNeilwhypeoplelikeyougetexcitedaboutthepossibilityoflifeonMars?

Neil

Well,MarsissimilartotheEarthinsomeimportantwayswhichmeansiflifedevelopedonourplanet,whynotMars?

Sophie

Thatstrue.Itstemperatureisintherightzone–nottoohotandnottoocold.ButactuallywecouldfindMarsprettycold–anaveragetemperaturewouldbearoundminus63degreesCelsiuscomparedtoEarths14degreesCelsius.Itsalsovery?arid?–ordry.

Neil

Anditneedstobewetforlifetodevelop,doesntit?

Sophie

Thatsright.Manyscientiststhinkthatliquidwaterisessentialforlife!ButtheremayhavebeenwateronthesurfaceofMarsinthepast.Andrecentresearchsuggeststhattheremaybewaterunderground.LetshearsomemoreaboutthisfromProfessorJohnZarnecki,w