20xx春九年級英語下冊unit4lifeonmars直擊中考課件新版牛津版-全文預(yù)覽
【正文】 station was called Salyut Ⅰ .It 4 as a place where people could live while they observed space and did first group of astronauts lived there for 23 Soviet Union went on to make seven more Salyut space about the same time,the United States had 5 own space station,called Skylab. Astronauts 6 in these space stations for a short ,it wasn’t until the late 1980s when the Soviet Union sent the Mir space station that people began to live in space for a 7 time. Living in space stations 8 to be fun,but astronauts face many of them is
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