【文档说明】人教新课标英语必修3 Unit 4 Astronomy the science of the stars Listening exercise 听力原文（文本素材） .docx，共(3)页，17.848 KB，由envi的店铺上传

转载请保留链接：https://www.doc5u.com/view-8da15a5a918ae7f972cb547c6b604b44.html

以下为本文档部分文字说明：

UsingLanguageTHEORIESOFGRAVITYMichaelJonesoftheNewSpaceMagazineistalkingwithspacetravellerLiYanpingaboutchangesinth

etheoryofgravity.LY=DrLiYanpingMJ=MichaelJonesListentoPart1.Listenagainandfillintheblanks.MJ:Hello,DrLiYanping.It’ssogoodofyoutotalktome.So

mestudentsaskuswhythingsalwaysfallbacktoearthifyouthrowthemupintheair.Couldyouexplainit?LY:Well,atfirstpeoplethoughtitwasbecausetheeart

hwasthecentreoftheuniverse.Ofcoursethatwaswrong.OnedayIsaacNewtonwatchedanapplefalltotheground.Hesaidt

hatsomethingelsemustbepullingtheapplebacktoearth.Hecalledit“gravity”.MJ:Isee.Didpeopleaccepthisidea?LY:Theydid

.Latertheyworkedoutthatbiggerobjects(likethesun)havestrongergravitythansmallerobjects(likeourplanets).Ifyou’retravellingindeeps

pace,youcouldn'tfallbacktotheearth.You’rejusttoofaraway.ListentoPart2.Listenagainandfillintheblanks.MJ:Doe

sitmeanthere’snogravityinspace?LY:No.Inaspaceshipyouwouldfeelthepullasitgotclosertosuchanobject.Youwouldtravelfasterandfastertowardsit

.MJ:Untilyouhitit?LY:Notexactly.Youmaypassitveryfastandthenitwouldthrowyououtintospaceagain.Afterthatyouwouldslowdowntothe

usualspeed.MJ:Howdoyouknowthis?LY:In1905Einsteinsaidthatinspacelargeobjectsmakespace-timebend;thelar

gertheobject,thefurtherspace-timebends.Sotimegoesslowerinverystronggravity.MJ:Whataboutblackholes?LY:That’sap

laceinspacewhichhassuchastrongmassthatnothingcanescapefromitsgravity.Thereisakindofedgearoundthismass.Ifyoucrossoverthisedge,it’simp

ossibleforyoutogetback.Howeverifyoudon’tcrossthisedge,youcanstillescape.StephenHawkinghasdonealotofresearchintoblackholes.Hehas

shownthatthey“spit”thingsoutaswellas“eat”them.Workbook-ListeningANINTERVIEWWITHYANGLIWEIR=MrRenaultY=YangLiweiListentoPart1.Listenagainandfillinthe

blanks.R:Thankyousomuch,MrYang,forcomingtotalktoustodayaboutyourexperienceinspace.Y:Notatall.I’mhappytobehere.R:Pleasecanyoutellusyourmos

texcitingmoment?Y:Well,thatwaswhenthespaceshipbegantoliftofftheground.ThenIknewthatIwasreallyonmyway

andthatChinawouldbecomethethirdcountrytosendpeopleintospace.R:Didyoufeelafraid?Y:No,becauseIwastrainednottoworry.SoIwatchedallm

yinstrumentsandstayedcalm.R:Whatsurprisedyou?Y:Thebeautyofspace.I’dneverrealizedhowlovelytheearthlookstillIwasgoin

groundit.ListentoPart2.Listenagainandfillintheblanks.R:Didyoualwayswanttobeanastronaut?Y:Well,Idreamedofitwh

enIwasyoung,butIneverthoughtmywishwouldcometrue.Itallhappenedgradually.FirstIgotmydegreeandthenItrainedfor

tenyearstoflyairplanesandthentoflyaspaceship.R:Isee.Didyouhavetobeacertainsizeandweight?Y:Yes.Anastronauthastobesmallerthan170cmandwe

ighlessthan70kg.R:Soyouweretheperfectchoice!Butofcourseyouhadtoworkveryhard.Wouldyouliketogointospaceagain?Y:Yes,Iwouldiftherewasa

nopportunity.I’dlovetogotothemoononeday.R:Ihopewe’llbetalkingtoyouagainafteryou’vefinishedthattrip!Goodbye,MrYang.Thankyoufortalki

ngtous.Y:Itwasmypleasure.Workbook-ListeningTaskANINTERVIEWWITHLIYANPINGW=WallisL=LiYanpingListenagainandfillintheblanks.W:MrLi,wouldy

oupleasetellusaboutyourspacewalk?L:Yes.I’dbehappyto.WecleanedandrepairedtheHubbletelescope.W:Oh,andisthatwhenyoudidyourspacewalk?L:Yes.W:Ho

wdidyouprepareforit?L:Firstwehadtogetintospacesuits.They’reverythickandcarryalltheoxygenweneedtobreathe.Thesuitalsohashotandcoldwater

soitcanwarmusifit’stoocoldorcoolusifit’stoohot.Soit’sveryheavy.W:Isitdangeroustoleavethespaceship?L:Yes,indeed.Whenweleave,wegointoasmallroom.Wehave

toweargravitybootstowalkthere.Weclosethedoorbehindusandthenweopenthedoortospace.Thenourgravitybootsstopworkingandweflyou

tofthedoor.W:Howdoyoumoveaboutinspace?L:Weusesmallenginestomovearound.Togoleftwepushtherightengineandtogorightwepushthelefto

ne.Wemoveslowlybecausewedon’tweighanything.Wecanflyaroundlikefeathers.W:Whatdoesitfeellikeinspace?L:Verystrange.Thereisnogr

avitysodoinganyjobisverytiring.W:Whathappensifyouflytoofarfromthespaceship?L:You’dnevergetbacksowetieourselvestothespaceshipwithaspecialrope.W:H

owdidyourepairtheHubbletelescope?L:Weusedsomespecialtoolstiedroundourwaists.Thatwaywedidn’tlosethem.Wedidagoodjob.Thetelescopeworksfinenow.W:Thankyou

verymuch,MrLi.