1961年4月12日是极为不平凡的一天,这一天苏联航天员加加林率先遨游太空,开创了人类载人航天的新纪无。回首40年的人类航天史,最使人难忘的是那些载人航天的英雄们。尽管他们有的已经荣归故里,有的血染碧空,还有的仍然继续遨游太空,但他们那种人定胜天的大智大勇将永远留在人们的美好记忆中。 April 12, 1961 is an extraordinary day when the Soviet astronaut Gagarin took the lead in traveling in space and created a new era of manned manned spacecraft. Looking back 40 years of history of human spaceflight, the most memorable are those heroes who are manned. Although some of them have been proud of their hometowns, some are blooming, others still continue to travel in space, their wise and brave nature will always remain in people’s good memory.