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