首页
登录
职称英语
People have dreamed of traveling in space for thousands of years. But it was
People have dreamed of traveling in space for thousands of years. But it was
游客
2023-09-03
75
管理
问题
People have dreamed of traveling in space for thousands of years. But it was not until 1957 that it became a (36)______. On October 4, 1957 Russia (37)______ the first man-made satellite into space, It was called Sputnik I.
On April 12, 1961 the Russian (38)______ Yuri Gagarin became the first man to orbit the Earth. The first spacewoman in the world was Valentina Tereshkova. She made 48 (39)______ in 1963 in her Vostok 6. On July 20,1969 the American (40)______ Neil Armstrong became the first man to set foot on the Moon. In 1986 the Russian space station Mir was launched.
Scientists are already at work on the (41)______ Space Station, a "city of space". It will be the size of a football field and will (42)______ over 200 tons. A team of 10—15 spacemen will (43)______ be able to live and work at the International Space Station in 2005.
The next step will be the first moon base. 20 or 30 scientists will live inside a dome with an artificial atmosphere.(44)____________. It also means that they will be able to grow food.
(45)____________. Scientists say that the planet once had water on its surface. If that water is now frozen underground, humans will be able to use it someday. By the end of the 21st century, scientists hope, (46)____________.
[br]
People have dreamed of traveling in space for thousands of years. But it was not until 1957 that it became a reality. On October 4, 1957 Russia launched the first man-made satellite into space. It was called Sputnik I.
On April 12, 1961 the Russian cosmonaut Yuri Gagarin became the first man to orbit the Earth. The first spacewoman in the world was Valentina Tereshkova. She made 48 orbits in 1963 in her Vostok 6. On July 20, 1969 the American astronaut Neil Armstrong became the first man to set foot on the Moon. In 1986 the Russian space station Mir was launched.
Scientists are already at work on the International Space Station, a "city of space". It will be the size of a football field and will weigh over 200 tons. A team of 10-15 spacemen will probably be able to live and work at the International Space Station in 2005.
The next step will be the first moon base. 20 or 30 scientists will live inside a dome with an artificial atmosphere. This will make it possible for them to live and work without spacesuits. It also means that they will be able to grow food.
The next great step will be landing people on our nearest planet Mars. Scientists say that the planet once had water on its surface. If that water is now frozen underground, humans will be able to use it someday. By the end of the 21st century, scientists hope, it will be possible to turn the planet into an earthlike place with air and water.
选项
答案
probably
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2982056.html
相关试题推荐
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
随机试题
•Readtheminutesofthemeetingbelow.•Arethesentences(16-22)’Right’or’
《西游记》(JourneytotheWest)是中国四大古典小说之一。它是由明代(theMingDynasty)吴承恩撰写的一部优秀的神话小说
电化学储能是指利用电化学反应来储存能量。下来不属于电化学储能的是()。A.
情感障碍的5一羟色胺假说认为A.躁狂发作有5-羟色胺先升高后降低 B.抑郁发作
关于计算VaR值的蒙特卡洛模拟法,以下表述错误的是()A.蒙特卡洛模拟法在估算之
共用题干 患儿,8个月,肺炎。现突然烦躁不安、发绀,且进行性加重。体检:呼吸6
北沙参是()
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
从桥梁拱顶截面形心至相邻两拱脚截面形心连线的垂直距离称为()。A.净矢高
蛋白质-热能营养不良患儿皮下脂肪逐渐减少或消失,首先累及的部位是A.四肢 B.
最新回复
(
0
)