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
High Dive kilometers up into the atmosphere.(1). No one has ever leapt from such a height or gone supersonic without an airpl
High Dive kilometers up into the atmosphere.(1). No one has ever leapt from such a height or gone supersonic without an airpl
admin
2009-06-15
36
问题
High Dive
kilometers up into the atmosphere.(1). No one has ever leapt from such a height or gone supersonic without an airplane or a spacecraft. Yet Stems, an airline pilot, is not the only person who wants to be the first to accomplish those feats. Two other. have people an Australian man and a Frenchman, are also planning to make similar leaps.
(1). First, she’ll climb into a cabin hanging from a balloon the size of a football field. Then the balloon will take her high into the’s trato sphere -- the layer of Earth’s atmosphere 12 to 50 kilometers above the planet. "The ascent will take two and a half to three hours." said Stems.”Tll be wearing a pressurized, temperature-controlled space suit.”
At 40 kilometers, Stems will be able to see the gentle curve of Earth and the blackness of space over head. Then she’ll unclip herself from the cabin and dive headfirst, like a bullet, into the atmosphere.(3) For high dive, astronaut escape suits are a key to success. Current pilot and astronaut escape suits are guaranteed only a maximum altitude of 21 kilometers. Del Rosso, a NASA engineer of spacesuits and life — support systems, said the suit designed for Stem’s jump could serve as a model for the lethal environment of higher climbs.(4)
The first hazard is oxygen-deficient air. Any person without an additional oxygen supply at 40 kilometers would die within three to five seconds. The second hazard is low atmospheric pressure. Atmospheric pressure is much lower at high altitudes than it is at sea level. The low atmospheric pressure of the upper stratosphere causes the gases in body fluids to fizz out of solution like soda bubbles.(5)Other hazards include temperatures as low as 55 degrees Celsius, flying debris, and solar radiation.
For Stems to survive, her spacesuit will have to protect her from all of these hazards. "A spacesuit is like a one-person spaceship," Del Rosso explained. "You have to take everything you need in a package that’s light enough, mobile enough, and tough enough to do the job. You can’t exist without it."
feat n. 技艺的表演
stratosphere n. 同温层
pressurize v. 加压,增压
lethal adj. 致死的
fizz v. 嘶嘶响
debris n. 碎片
A. It will handle several major hazards.
B. Escape suits are tough enough to stand the atmospheric pressure of the upper stratosphere.
C. From there, she’ll take a death-defying leap back to Earth at supersonic speed.
D. "In 30 seconds, I’ll be going Mach speed," said Stems.
E. How will Stems make her giant jump?
F. In short, blood boils.
选项
答案
A
解析
空格后出现了“第一个危险是……”因此判断A合适。解题线索:“总述+分别论述”的逻辑发展结构。
转载请注明原文地址:https://kaotiyun.com/show/R2Ld777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
ThetiesymbolizesallofthefollowingexceptWhydoesBlairsometimesshowupinaformaleventwithoutatie?
MiddleAge:ALowPointforMostPeoplearoundtheglobehittheheightoftheirmiseryanddepressioninmiddle【51】______,
MiddleAge:ALowPointforMostPeoplearoundtheglobehittheheightoftheirmiseryanddepressioninmiddle【51】______,
MiddleAge:ALowPointforMostPeoplearoundtheglobehittheheightoftheirmiseryanddepressioninmiddle【51】______,
MiddleAge:ALowPointforMostPeoplearoundtheglobehittheheightoftheirmiseryanddepressioninmiddle【51】______,
Featuressuchasheight,weight,andskincolordifferfromindividualtoindividualandfromfacetoface。
随机试题
关于紫外线,下述哪项不正确()
有上咳平喘,润肠通便作用的是
禁忌行大量不保留灌肠的患者是
苯胺经皮吸收的速度随环境中下列哪种因素增高而增加
图4-63所示结构受一水平力F作用,铰支座A的约束力FA作用线应该是()。
海水中影响声波传播速度的主要因素有()。
施工平面图是()及施工进度计划在空间上的全面安排。
合理情绪疗法属于()
为了在报表中打印当前时间,这时应该插入一个【】。
使用VC++2010打开考生文件夹下blank1中的解决方案。此解决方案的项目中包含一个源程序文件blank1.c。在此程序中,函数fun的功能是:找出100~x(x≤999)之间各位上的数字之和为15的所有整数,并在屏幕输出;将符合条件的整数的个数作为函
最新回复
(
0
)