C
Somepeoplewonderwhycountriesspendmillionsofdollarsonspaceprojects.TheywanttoknowhowspaceresearchhelpspeopleonEarth.Actually,spacetechnologyhelpspeopleonEartheveryday.Thisiscalled“spinofftechnology”.SpinofftechnologyisspacetechnologythatisnowusedonEarth.
flashlight
Inearlyspaceprograms,suchastheApollomissions(任务)ofthe1960sand1970s,andinthespaceshuttlemissionstoday,scientistsdevelopedobjectsfortheastronauts(spacemen)touseonthemoonandinspace.Wenowusesomeoftheseobjectseveryday.Forexample,wehaveQuartzclocksandwatcheswithanaccuracyofoneminuteayear.Wepurifythewaterwedrinkwithawaterfilter(过滤器)designedfortheastronauts’useinspace.Thecordless,hand-heldtoolsweuseinourhomes,suchascleaners,flashlights,drills,andironscamefromthetechnologyoftheseearlyspaceprograms.
batteries
Oncoldwinterdays,wecanstaywarmwithbattery-operatedshoesandsocks,andinsulated(绝缘的)coatsandjackets.Alloftheseclothesaresimilartothespacesuitdesignsthatkeptastronautscomfortableinthetemperaturesofthemoon,andarespinoffsfromspacetechnology.
Theseproductsareonlyafewexamplesofthemanywaysspacetechnologyhelpsusinoureverydaylife.NooneknowshownewspinofftechnologyfromtheInternationalSpaceStationwillhelpusinthefuture.
51.WhichofthefollowingisNOTaspinoff?
A.Waterfilters.
B.Quartzwatches.
C.Battery-operatedsocks.
D.Spacesuitswornbyastronauts.
52.Whichofthefollowingisthebesttitleofthepassage?
A.FutureofSpaceTechnology
B.AdvantagesofSpinoffs
C.SpinoffTechnology
D.SpaceProjects
53.Wecaninferthatthewriter_______.
A.suggestsusingmorespinoffsinourdailylife
B.agreestodomoreresearchonspinofftechnology
C.doubtsifspinoffshaveanygoodeffectonhumanbeings
D.believesthatspacetechnologywillbewidelyusedonEarth
你看是这套么