首页
登录
职称英语
The atmosphere is all the air surrounding the earth. Without it, we would be
The atmosphere is all the air surrounding the earth. Without it, we would be
游客
2025-03-16
0
管理
问题
The atmosphere is all the air surrounding the earth. Without it, we would be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the sun’s deadly rays.
Large and powerful, the atmosphere consists of an ocean of gases hundreds of miles high. It presses down on our bodies with a force of more than fourteen pounds per square inch. The narrow column of air which rests upon our shoulders weighs almost 2000 pounds. But our bodies are built in such a way that this weight does not crush(压碎)us.
In this huge ocean of air there is more energy than in all the coal, oil, and gas we have on earth. Electrical energy is collected in the atmosphere as water is collected and stored in a dam. The existence of electricity in the air has been known for centuries. But a thorough study of electricity in the atmosphere was not possible until the development of radio and radar.
One scientist, Dr. Sydney Chapman, has tried to explain the electric field which surrounds the earth. He believes that great storms on the sun create large mounts of electric energy. This energy is contained in a very light gas called hydrogen. The earth pulls the gas toward it, and a ring is formed around the earth several thousand feet above its surface. The great space ring is a powerful current of electrical energy. Sometimes the ring comes down and curves into the lower atmosphere, causing strange electrical effects.
His idea explains many things. It has long been known that there is an electric field inside the earth. It moves in much the same manner as the electric energy contained in the atmosphere. Scientists now believe that the electric energy in the atmosphere causes the electric energy inside the earth to flow.
If we can learn to control the energy in the atmosphere, we will have an unending supply of energy. Many scientists are trying to learn how to control it. In the meantime, even those of us who are not scientists have begun to pay attention to air. We realize that air does not contain the same elements that it contained years age. Automobiles, airplanes, factories, and atomic explosions have added dust and waste gases to the atmosphere, It is time to learn how to protect our atmosphere, the roof over the world of man.
选项
A、the total amount of oxygen over the earth
B、mixture of gases surrounding the earth
C、a source of storms
D、the diffusion of waste gas
答案
B
解析
综合第一和第二段首句可得出本题答案。
转载请注明原文地址:https://tihaiku.com/zcyy/4000214.html
相关试题推荐
Withoutourteacher’shelp,we______somuch.A、didn’tachieveB、willnotachiev
Weknowtheatmosphereas______.[br]Themaintopicofthepassageis______.A
Weknowtheatmosphereas______.[br]Accordingtoscientists,iftheenergyin
Weknowtheatmosphereas______.[br]Quantityofenergycontainedintheatmos
Withoutproperplanning,tourismcancauseproblems.Forexample,toomany
TheotherdayyourcousincametovisituswithoutgivingnoticeA、inadditionB、
Itissaidthatatfirsthewaswithoutmoneyorfriendsthere,butthatheearn
Ifyouthinkthatyoucan’thaveagoodtimewithoutspendingalotofmoney,re
Withouttheworker’shelp,Sam______somuchprogress.A、wouldnotmakeB、would
Withoutproperplanning,tourismcancauseproblems.Forexample,toomany
随机试题
Provided,further,thatthissectionshallnotprohibitanycounty,cityandcou
Therewasatimewhenparentswhowantedaneducationalpresentforthe
Fightunhealthyfood,notfatpeopleA)It’shardlybreaking
TheRealWalkersCompanyoffersaselectionofsmallgroupwalkingholidays
铝主要以铝硅酸盐矿存在,下列关于铝的描述错误的是( )。A.铝在地壳中的含量仅
人体不能合成维生素C,必需每日经食物摄取,因为人体内( )。A.糖醛酸途径活性
两棵基本相同的植物,分别置于透明的玻璃罩内,如图5中的甲、乙。在相同自然条件下,
中药饮片在调配过程需要将其放在中央的是A:川芎10gB:荷叶10gC:黄柏1
急性胰腺炎非手术治疗期间使用的药物中不能抑制胰腺分泌的是A:雷尼替丁 B:抑肽
上海市政府将在街道建设“一门式”社区事务受理中心作为政府实事工程之一,这一项目可
最新回复
(
0
)