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
A、To show a videotape on survival in outer space. B、To gain support for the space program. C、To describe her experience on space
A、To show a videotape on survival in outer space. B、To gain support for the space program. C、To describe her experience on space
admin
2011-03-05
50
问题
Listen to a talk given by an astronaut.
Thank you. It’s great to see so many of you interested in this series on "Survival in Outer Space". Please excuse the cameras--we’re being videotaped for the local TV stations.
Tonight I’m going to talk about the most basic aspect of survival--the space suit. When most of you imagine an astronaut, that’s probably the first thing that comes to mind, right? Well, without space suits, it would not be possible for us to survive in space. For example, outer space is a vacuum--there’s no gravity or air pressure; without protection, a body would explode. What’s more, we’d cook in the sun or freeze in the shade---with temperatures ranging from a toasty 300 degrees above to a cool 300 degrees below zero Fahrenheit.
The space suit that NASA has developed is truly a marvel. This photo enlargement here is a life-size image of an actual space suit worn by astronauts on the last space shuttle mission. This part is the torso--it’s made of seven extremely durable layers. This thick insulation protects against temperature extremes and radiation. Next is what they call a "bladder" of oxygen--that’s an inflatable sac, filled with oxygen, to simulate atmospheric pressure. This bladder presses against the body with the same force as the Earth’s atmosphere at sea level. The innermost layers provide liquid cooling and ventilation. Despite all the layers, the suit is flexible, allowing free movement so we Call work.
Another really sophisticated part of the space suit is the helmet. I brought one along to show you. Can I have a volunteer come and demonstrate?
21. What is the speaker’s main purpose?
22.What would cause an unprotected human body to explode in outer space?
23.Where is the "bladder" of oxygen located?
24.What does the speaker show the audience as she describes the main part of the space suit?
25.What will probably happen next?
选项
A、To show a videotape on survival in outer space.
B、To gain support for the space program.
C、To describe her experience on space missions.
D、To inform the audience about the space suit.
答案
D
解析
主旨题。这段话一直围绕着太空服,目的是向听众介绍关于太空服的知识。
转载请注明原文地址:https://kaotiyun.com/show/ZnyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
有些人的成功常常让周围的人大惑不解,因为他们似乎从来都不工作,或者没有长时间地工作。【T1】他们的成功秘诀在于他们专注的能力,因而能够凭借最小的明显努力获得最大的成果。(liein)爱默生说:“无论是在政治、战争、商业,还是在一切人类事务的处理中,专注都
Whatinthenightskyissuggestedbythefollowingwordpicture?
Whichofthefollowingstatementsbestdescribetheconditionofthepassengers?
BeforeIagree__________yoursuggestion,I’dliketoknowwhatI’m__________myselfinfor.
Oneofthethreemajorcommercialnetworks,CBSwereorganizedin1928【M1】__________whichitsfounder,WilliamPaley,acquired
Apoliticalspeechwriterneedstohave【D1】_______,aswellasa【D2】_______,whilealistofspeech-writingtechniquesfornon-
Asusual,whentheWestglamorizessomethingforcommercialpurposes,thewholeweightofthecommunicationmediahasbeenthrow
Collisionbetweenanaircraftandoneormorebirdsistermedabird-strike.Pilotssometimesrecordabirdstrikewhileatcruis
Whenthetelevisionisgood,nothing—notthetheater,notthemagazines,ornewspapers—nothingisbetter.Butwhentelevisionis
【B1】____Themajorreasonislossofhabitat,whichhascontinueddespitetheestablishmentof14pandareserves.Deforestation,
随机试题
单一记账货币原则下,要求记账货币必须是本币,选用的汇率是交易日的市场汇率。【】
社会产品必须是一定时期内的()
血红素合成的步骤是
男,30岁。因右下颌智齿冠周炎,造成颌间隙、颞下间隙、翼下颊间隙脓肿。切开引流的最佳方法为
管道长度不变,管中流动为紊流光滑区,λ=,允许的水头损失不变,当直径变为原来1.5倍时,若不计局部损失,流量将变为原来的()倍。
以下有关库存现金监盘表的说法中,不正确的是()。
在新的历史条件下,只有改善党的领导,才能坚持和加强党的领导,这是因为()。
如今这几年参加注册会计师考试的人越来越多了,可以这样讲,所有想从事会计工作的人都想要获得注册会计师证书。小朱也想获得注册会计师证书,所以,小朱一定是想从事会计工作了。以下哪项如果为真,最能加强上述论证?()
关于《兵役法》对服兵役的相关规定,下列说法正确的有
【S1】【S6】
最新回复
(
0
)