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
公务员
The first walk into outer space was taken by a Soviet astronaut. Astronaut Zhai Zhigang became the first Chinese to walk in spac
The first walk into outer space was taken by a Soviet astronaut. Astronaut Zhai Zhigang became the first Chinese to walk in spac
admin
2016-01-29
35
问题
The first walk into outer space was taken by a Soviet astronaut. Astronaut Zhai Zhigang became the first Chinese to walk in space on September 27, 2008. It showed that it was quite safe for a man to be outside the spaceship for a certain period of time. But to walk in space, astronauts have to meet with many kinds of difficulties and dangers.
The spaceship goes round the earth at an altitude of about 200 kilometers above its surface. At such altitudes there is no atmosphere which protects the life on the earth. The conditions of outer space are very harmful to man.
The boiling point of liquids goes down with pressure. But pressure outside the spaceship is nearly zero. In such conditions the decompression of the spacesuit may cause the boiling of the blood and quick death. There is radiation from space and it is harmful.
Breathing problems in space can be solved with the help of the spacesuit. Another problem is heat. Man gives off heat in the course of his activity, and the harder the labor is, the greater the amount of heat is.
In space unless special measures are taken, the heat inside the spacesuit would make the conditions difficult.
根据短文内容,完成下面的句子。(每空一词)(3分) Zhai Zhigang became the first Chinese astronaut______in space on September 27,2008.
选项
答案
that walked
解析
转载请注明原文地址:https://kaotiyun.com/show/Y3Qq777K
本试题收录于:
小学英语题库教师公开招聘分类
0
小学英语
教师公开招聘
相关试题推荐
判断两台计算机是否属于同一个子网的唯一根据是他们的主机号是否相同。()
执教“数码照片处理技术”内容时,某位老师是这样导人的:①请学生用数码照相机在教室中拍摄几张照片。②展示刚拍的照片,学生观察并找出不足。③引导学生注意照片的清晰和明暗情况,引入课题。问:该课采用的导入方式是什么?在信息技术教学中有哪些导人方法?
根据短文内容,从方框中选出能填入空白处的最佳选项SayingGoodbyeManypeoplewerewaitingforthetrain.Somewerereadingnewspapersandsomewere
Societiesallovertheworldnameplacesinsimilarways.Quiteoftenthereisnoofficialnamingceremonybutplacestendtobe
Harrywasaboyoffourteenyearsold.Hewastallandstrong.Andheranthefastestinhisclass.Soeveryonewasveryproudo
Alittleboyinvitedhismothertoattend(出席)hiselementaryschool’sfirstteacher-parentmeeting.Tothelittleboy’sdismay,
ItzhakPerlmanwasborninIsrael.Buthismusichasmadehimacitizenoftheworld.Hehasplayedin【B1】everylargecity.He
—______?—Ihaveaheadache.
______learningistoinvolvelearnersininvestingenergyandattentioninordertodiscoversomethingaboutthelanguagefort
ACMilanstarKakasaysafootinjuryisstillstoppinghimfromreturningtofootball.Hehasnotplayedfor32days.Kakasays
随机试题
_____是语音的本质属性。
处方碘50g,碘化钾100g,蒸馏水适量,制成复方碘溶液100ml,碘化钾的作用是
患者,女性,31岁,月经前3天来诊,诉左乳有一豆粒大小肿物,有压痛,月经前增大,月经后缩小。查体:左乳外上象限可触及增厚腺体,内有多个结节,最大者约0.5cm×0.5cm,质韧、光滑,边界尚清,活动欠佳,触痛明显,最有可能的诊断是
半夏厚朴汤属于小陷胸汤属于
对于子宫内膜异位症的临床表现,说法错误的是
不影响滴制法制备胶丸质量的因素是()。
注册计量师的职业道德主要有哪些?与注册计量师的职业特点有何联系?
中央固定收入不包括下列()税收。
国际社会工作界把社会工作价值观归纳为服务、个人的尊严和价值以及()。
Humanvisionlikethatofotherprimateshasevolvedinanarborealenvironment.Inthedensecomplexworldofatropicalforest
最新回复
(
0
)