首页
登录
职称英语
[originaltext] Thunderstorms are the least dangerous and least violent of all
[originaltext] Thunderstorms are the least dangerous and least violent of all
游客
2024-02-18
28
管理
问题
Thunderstorms are the least dangerous and least violent of all the storms. Almost everyone has experienced a thunderstorm with its heavy rains, high winds, lightning and accompanying thunder. This type of storm can release a great deal of energy. A single thunderstorm can release energy to the atmosphere equivalent to a hydrogen bomb. There are some 50,000 thunderstorms that occur on earth daily. This would make the daily energy released into the atmosphere equal to billions of tons of TNT.
Certain conditions must exist for thunderstorms to develop. First, the air must contain a great deal of water vapor. Second, there must be a rapidly rising air current. Thunderstorms may produce lightning and thunder. Lightning is a result of the rapidly rising air. The temperature produced by lightning is nearly 50,000 degrees Fahrenheit. This tremendous amount of heat causes the air to expand suddenly. This causes sound waves to be produced in the air which are heard as a crashing or loud noise called thunder.
选项
A、Lightning and thunder.
B、A great deal of water vapor and a rapidly rising air current.
C、Warm air and cold air.
D、A great amount of vapor and electricity.
答案
C
解析
[听力原文]
What are the two conditions that must exist for thunderstorms to develop?
信息明示题。文章第二段开头指出,the air must contain a great deal of water vapor...must be a rapidly rising air current(空气中必须包含大量的水气…还要有快速上升的气流),由此可知C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3462879.html
相关试题推荐
[originaltext](26)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext](26)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext](26)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext]IndifferentpartsofBritain,peoplecalltheirmealsbydif
[originaltext]W:Doyouhaveanytreatmentformyillness?M:Operationisthe
[originaltext]W:Doyouhaveanytreatmentformyillness?M:Operationisthe
[originaltext]W:Doyouhaveanytreatmentformyillness?M:Operationisthe
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]Acoupleofweeksago,IranintomyboyhoodfriendDavidfor
随机试题
Canyouchangeoneletterofeachofthesewordstomaketwonewwordswithaco
[originaltext]W:Whatsortofhoursdoyouwork,Steve?M:Well,Ihavetowork
某工程项目建设单位与施工单位依法签订了施工合同,合同中估算工程量为5300m2,
工业建筑耐火等级为三级的楼板燃烧性能和耐火极限应满足()。A.不燃性1.50h
模拟信号的波形图如图所示,它的时间域描述形式是:A.u(t)=2(1-e-10
哪项不符合先天性甲状腺功能减低症()A.低体温 B.出生体重小于正常新
下列防腐剂不影响尿中蛋白质和糖定性实验的是( )。A.浓盐酸 B.甲苯 C
《变电验收管理规定第23分册站用交流电源系统验收细则》:UPS竣工(预)验收中运
科学家发现16个生物钟基因大部分在一天中固定的时间发挥作用,其中有9个在早晨工作
某一高层封闭式办公大楼,终日采用集中式空调系统。近日工作人员诉说呼吸道干燥、鼻塞
最新回复
(
0
)