首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
People have dreamed of traveling in space for thousands of years. But it was not until 1957 that it became a (36)______. On Octo
People have dreamed of traveling in space for thousands of years. But it was not until 1957 that it became a (36)______. On Octo
admin
2012-12-13
64
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)____________.
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
cosmonaut
解析
转载请注明原文地址:https://kaotiyun.com/show/pYb7777K
0
大学英语六级
相关试题推荐
Manyhousesinthenortharewarminwinterbecausetheyare______sothatthebeatisnotlost.
Mostauthoritiesbelievethaturbanstreetcrimefromacombinationofpoverty,pooreducationandalackofopportunity.______
Hetriedto______themisleadingexpressionsinhisarticleinordernottoinvitetheothers’criticism.
Psychologistshavefoundthat______disciplinarymeasuresdonotalwaysmakeachildbetterbehave.
Ialwaysholdanopinionthatpeoplewhorefuseto______withthelawwillbepunished.
Despitethechangesthathadtakenplaceinthestructureoftheempireandinthepolitical,economic,andsocialpatternsofG
WhenIwaslittlemyolderbrotherwould______metilltearsrandownmyface.
A、Heshouldn’thaveapologized.B、Hewillfindabetterwayofapologizing.C、Hecouldn’tfindarightwordtomakeanapology.
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperhapsasearlyas150,000yearsagobaseduponrecent
A、Hedoesn’twanttobejudgedbythewoman.B、Theaudienceallseemedtoenjoytheconcert.C、He’sgladthatthewomancantell
随机试题
女性,28岁。近2周来感颈前部及咽部疼痛,伴怕热、心慌、多汗,全身乏力不适就诊。体检:体温38℃,消瘦、皮肤多汗。无突眼。甲状腺I度肿大,双侧均有压痛。杂音(一),双手细微震颤(+)。对于本病的治疗,下列哪项是不合理的
关于电源电阻的解释,正确的是
玻璃离子粘固剂修复术与银汞合金修复术相比在窝洞制备上的特点为
建设工程施工或者农业生产中,任何单位或者个人发现文物,应当保护现场,立即报告当地文物行政部门,文物行政部门接到报告后,应当在24小时内赶赴现场,并在()日内提出处理意见。
在计算个体工商产生产经营所得时,不得在个人所得税税前扣除的项目有( )。
甲公司经营不善,进行破产清算,以下说法中正确的是()。
某商厦为增值税一般纳税人,适用增值税税率17%,2007年10月经营情况如下:(1)零售货物金额79.56万元;(2)采取分期收款方式销售货物一批,销售额30万元,并开具等额专用发票一张,合同规定当月收取10万元;(3)当期支付购销货物运费4.5万元,取
关于建筑给水系统的说法,正确的是()
在一次数学测验之后,教师用一节课的时间对考试中学生常犯的错误进行了讲解和总结,并介绍优秀试卷.这堂课是().
情景:你得到了一块新手表,这是你父亲送你的生日礼物。任务:用英语写一篇50词左右的短文,描述一下你的手表。内容包括:.这块表看起来很漂亮。.它不是很贵,但对你来说非常重要。.父亲希望你每天按时上课,争取做个好学生。
最新回复
(
0
)