2015年職稱英語考試?yán)砉ゎ愌a(bǔ)全短文精選練習(xí)題(4)

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　　2015年職稱英語考試理工類補(bǔ)全短文精選練習(xí)題(4)

　　High Dive

　　Cheryl Sterns aims to go boldly where no human has ever gone before in a balloon：40 kilometers up into the atmosphere. 1 No one has ever leapt from such a height or gone supersonic1without an airplane or a spacecraft.Yet Sterns,an airline pilot,is not the only person who wants to be the first to accomplish those feats.Two other brave people,an Australian man and a Frenchman,are also planning to make similar leaps.

　　2 .First,she’11 climb into a cabin hanging from a balloon the size of a football field2.Then the balloon will take her high into the stratosphere―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 Sterns.“I’ll be wearing a fully pressurized, temperature-controlled space suit.”

　　At 40 kilometers,Sterns will be able to see the gentle curve of Earth and the blackness of space over head.Then she’11 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 Stern’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 Sterns 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 me job.You can’t exist without it.”

　　詞匯：

　　feat n.技藝的表演 stratosphere n.同溫層

　　ascent n.上升 pressurize 證加壓,增壓

　　lethal adj.致死的 deficient adj.缺乏的,不足的

　　fizz v.嘶撕響 debris n.碎片

　　注釋：

　　1. gone supersonic：相當(dāng)于gone at supersonic speed。

　　“go+adj.”是個常用結(jié)構(gòu),如：go mad,go free,go electric等。

　　2. First,she’11 climb into a cabin hanging from a balloon the size of a football field：首先,她進(jìn)入吊在一個有足球場那么大的氣球的座艙里。

　　the size of a football field是名詞短語,用作定語,修飾balloon。

　　練習(xí)：

　　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 (馬赫) speed,”said Sterns.

　　E. How will Sterns make her giant jump?

　　F. In short,blood boils.

　　答案：1.C 2.E 3.D 4.A 5.F

     2015年職稱英語考試必備句型匯總