大学英语听说教程(第二版)3(智慧版)教师用书Unit 5 Going into space.pdf
Unit5Goingintospace
WARMUP
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Referenceanswers
NameSpaceexperienceContribution
HeorbitedtheEarthin1961,Thefirstpersontoventure
YuriGagarin
taking108minutes.intoouterspace.
SheorbitedtheEarth48times
Thefirstwomantotravel
ValentinaTereshkovaandspentalmostthreedaysin
inspace.
spacein1963.
Hesetfootonthemoon’sThefirstpersontowalkon
NeilArmstrong
surfacein1969.themoon.
HeorbitedtheEarth14times,
travelingsome500,000ThefirstpersoninChina
YangLiwei
kilometersinspacein21tojourneyintospace.
hoursin2003.
PRONUNCIATION
Referenceanswers
Blackholes/aresomeofthestrangest/andmostfascinatingobjectsinspace./They
don’thavesurfaces,/likeplanetsorstars./Instead,/theyhaveaboundarycalledan
“eventhorizon”,/apointofnoreturn./Ifanythingcomestooclosetothatpoint,/it
willfallinward/andneverescapetheholes’gravity./TheMilkyWaycontainsover
100millionblackholes/ofvarioussizes./Attheheartofit/liesasupermassiveone.
/Itliesapproximately26,000lightyearsawayfromtheEarth;/itsstructureisabout
fourmilliontimes/themassofthesun./Thefirstimageofablackholewascaptured
in2019/throughthecollaborationofhundredsofscientistsworldwide./Surprisingly,
/itlookedjustlikearedcircleonablackba