人类发明的太空船.doc

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1、人类发明的太空船   Manhasbeentothemoon.Itwasthefirststeptothetravelsinspace.Themoonismuchnearertotheearththanalltheplanets.Venus,（金星）averynearplanettotheearth,ismillionsofkilometersaway!Travelingtotheplanetswillbeman'snextaim.Itwillbemoredifficultthantravelingtothemoonandcertainlymoreexciting.

2、    In1997,anAmericanspaceship（太空船）reachedMars,（火星）thesecondnearestplanettotheearth.Awonderfulrobotslowlywalkedontheplanetandworkedhard.Itsentalotofinformationbacktotheearth.ThemostexcitingpiecewasthatthereusedtobealotofwateronMars.TheAmericanscientistswantedtofindtheanswertothequestio

3、n:“IsthereanylifeonMars?”Unluckily,nolifewasfoundthere.ButAmericanscientistshavenotlostheart.   RussianspaceshipshavefoundthatitissohotonVenusthattheremustbenolifethere.   Spaceshipsofthefuturewillbebiggerandfaster.Theywillbeabletocarrypeoplefortravelstothemoonortheplanets.   Manmayint

4、hefuturefindplanetsliketheearthandmakethemhishome.Butthereisstillalong,longwaytogo.Manshouldlearntoknowthattheearthwillbehisonlyhomeforalongtimeandbegintoloveandtakegoodcareofit.