六级冲刺备考的改错练习（8）
<p> 第八篇： <span word="Error">Error</span> <span word="Correction">Correction</span></p><p> <span word="Some">Some</span> <span word="people">people</span>, <span word="in">in</span> <span word="all">all</span> <span word="seriousness">seriousness</span>, <span word="say">say</span> <span word="that">that</span></p><p> <span word="humans">humans</span> <span word="will">will</span> <span word="be">be</span> <span word="living">living</span> <span word="in">in</span> <span word="space">space</span> <span word="within">within</span> <span word="the">the</span> <span word="next">next</span></p><p> <span word="hundred">hundred</span> <span word="or">or</span> <span word="so">so</span> <span word="years">years</span>. <span word="Planet">Planet</span> <span word="Earth">Earth</span> <span word="will">will</span> <span word="be">be</span> <span word="crowded">crowded</span>,</p><p> <span word="dirty">dirty</span> <span word="and">and</span> <span word="lack">lack</span> <span word="of">of</span> <span word="resources">resources</span>. <span word="A">A</span> <span word="sort">sort</span> <span word="of">of</span> <span word="exodus">exodus</span> --71.</p><p> <span word="of">of</span> <span word="mankind">mankind</span> <span word="will">will</span> <span word="begin">begin</span>.</p><p> <span word="Spaceships">Spaceships</span> <span word="will">will</span> <span word="be">be</span> <span word="assembled">assembled</span> <span word="so">so</span> <span word="that">that</span> <span word="they">they</span></p><p> <span word="revolve">revolve</span> <span word="around">around</span> <span word="the">the</span> <span word="earth">earth</span>. <span word="Some">Some</span> <span word="may">may</span> <span word="orbit">orbit</span> <span word="around">around</span></p><p> <span word="Mars">Mars</span>. <span word="These">These</span> <span word="space">space</span> <span word="stations">stations</span> <span word="will">will</span> <span word="be">be</span> <span word="serviced">serviced</span> <span word="by">by</span></p><p> <span word="space">space</span> <span word="buses">buses</span>. <span word="We">We</span> <span word="saw">saw</span> <span word="the">the</span> <span word="first">first</span> <span word="space">space</span> <span word="bus">bus</span> <span word="launch">launch</span> <span word="in">in</span> --72.</p><p> <span word="April">April</span> 1981. <span word="This">This</span> <span word="was">was</span> <span word="Columbia">Columbia</span>, <span word="it">it</span> <span word="made">made</span> <span word="several">several</span> --73.</p><p> <span word="orbits">orbits</span> <span word="around">around</span> <span word="the">the</span> <span word="earth">earth</span> <span word="and">and</span> <span word="then">then</span> <span word="returned">returned</span>, <span word="landing">landing</span></p><p> <span word="on">on</span> <span word="a">a</span> <span word="huge">huge</span> <span word="dry">dry</span> <span word="lake">lake</span> <span word="bed">bed</span> <span word="in">in</span> <span word="California">California</span>. <span word="Columbia">Columbia</span></p><p> <span word="will">will</span> <span word="be">be</span> <span word="used">used</span> <span word="again">again</span>. <span word="Previous">Previous</span> <span word="spaceships">spaceships</span> <span word="have">have</span></p><p> <span word="been">been</span> <span word="abandoned">abandoned</span>, <span word="only">only</span> <span word="the">the</span> <span word="nose">nose</span> <span word="cone">cone</span> <span word="being">being</span> <span word="used">used</span></p><p> <span word="to">to</span> <span word="bring">bring</span> <span word="the">the</span> <span word="crews">crews</span> <span word="back">back</span> <span word="to">to</span> <span word="earth">earth</span>. --74.</p><p> <span word="Upon">Upon</span> <span word="established">established</span>, <span word="each">each</span> <span word="space">space</span> <span word="station">station</span> <span word="will">will</span> --75.</p><p> <span word="generate">generate</span> <span word="its">its</span> <span word="own">own</span> <span word="atmosphere">atmosphere</span> <span word="and">and</span> <span word="have">have</span> <span word="its">its</span> <span word="own">own</span></p><p> <span word="agriculture">agriculture</span>. <span word="It">It</span> <span word="will">will</span> <span word="need">need</span> <span word="to">to</span> <span word="rotation">rotation</span> <span word="to">to</span> <span word="provide">provide</span> --76.</p><p> <span word="an">an</span> <span word="artificial">artificial</span> <span word="gravity">gravity</span>; <span word="people">people</span> <span word="will">will</span> <span word="be">be</span> <span word="forced">forced</span> <span word="inwards">inwards</span> --77.</p><p> <span word="from">from</span> <span word="the">the</span> <span word="center">center</span> <span word="by">by</span> <span word="centrifugal">centrifugal</span> <span word="force">force</span>.</p><p> <span word="The">The</span> <span word="moon">moon</span> <span word="and">and</span> <span word="Mars">Mars</span> <span word="could">could</span> <span word="become">become</span> <span word="new">new</span> <span word="sources">sources</span> <span word="of">of</span></p>
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