学文网Yuri A. Gagarin was born on a collective farm in a region west of Moscow, Russia on March 9th, 1934. His father was a carpenter[木匠]. Yuri attended the local school for six years and continued his education at vocational[职业的] and technical schools.
Yuri Gagarin joined the Russian Air Force in 1955 and graduated with honors[优等成绩] from the Soviet Air Force Academy in 1957. Soon afterward, he became a military fighter pilot. By 1959, he had been selected for cosmonaut training as part of the first group of USSR cosmonauts.
Yuri Gagarin flew only one space mission. On April 12th, 1961 he became the first human to orbit Earth. Gagarin’s spacecraft, Vostok 1, circled Earth at a speed of 27,400 kilometers per hour. The flight lasted 108 minutes.
Once in orbit, Yuri Gagarin had no control over his spacecraft. Vostok’s reentry[重新进入] was controlled by a computer program sending radio commands to the space capsule[太空舱]. Although the controls were locked, a key had been placed in a sealed envelope in case an emergency situation made it necessary for Yuri Gagarin to take control. As was planned, Cosmonaut Yuri Gagarin ejected[弹射出] after reentry into Earth’s atmosphere[大气] and landed by parachute[降落伞].
Yuri Gagarin died on March 27th, 1968 when the MiG-15 he was piloting crashed[坠毁] near Moscow. At the time of his death, Yuri Gagarin was in training for a second space mission.
1934年3月9日，尤里・A・加加林在俄罗斯莫斯科以西地区的一个集体农场出生，其父是一名木匠。尤里在当地学校读了六年书，随后在职业技术学校继续进修。
尤里・加加林于1955年加入俄罗斯空***，1957年以优异的成绩从苏联空***学校毕业。不久之后，他成为了一名***用战斗机飞行员。到了1959年，他入选为第一批苏联宇航员，进行宇航员训练。
尤里・加加林只执行过一次宇航任务。1961年4月
12日，他成为围绕地球轨道飞行的第一人。加加林乘坐的“东方1号”宇宙飞船以每小时27400千米的速度围绕地球飞行，整个过程持续了108分钟。
进入轨道后，尤里・加加林就无法控制他的宇宙飞船。电脑程序向太空舱发出无线电指令，指挥“东方1号”返回。虽然太空船内的控制器被锁上，但在一个密封信封里存放着一把钥匙――以便发生紧急状况时，必须由尤里・加加林控制飞船。按照原定计划，宇航员尤里・加加林在返回地球大气层之后弹出太空舱，利用降落伞降落。
1968年3月27日，尤里・加加林驾驶的米格15战机在莫斯科附近坠毁。当时他正在为执行第二次太空任务进行训练。
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