首页
登录
职称英语
[originaltext] The winds of a tornado are the most violent and destructive o
[originaltext] The winds of a tornado are the most violent and destructive o
游客
2023-08-18
14
管理
问题
The winds of a tornado are the most violent and destructive ones on Earth. Any of you who have seen one knows very well how frightening and powerful they are. What’s interesting about them is that scientists don’t actually know exactly why tornadoes occur.
We do know, however, what happens when tornadoes are formed. As you remember, a front occurs when cool, dry air from the north meets warm, humid air coming from the south. Where these air masses meet, a narrow zone of storm clouds develops, and thunderstorms, and sometimes tornadoes, occur.
How is this violent weather produced? Well, a mass of warm, humid air rises very rapidly. As it rises, more warm air rushes in to replace it. This inrushing air also rises, and in some cases, especially when there is extreme thermal instability, begins to rotate. When this happens, the rotating air forms a tornado.
Even if you’ve seen tornadoes only in movies, you know that they can destroy buildings in seconds. This is possible because when a tornado passes over a house, it sucks up air from around the house and so the air pressure outside the house drops rapidly. Inside, pressure remains the same. So, air pressure inside is greater than air pressure outside. The result is that the building explodes outward. Next, we’ll talk a little bit about how new technological developments are being used to try to predict tornadoes.
9 What does the speaker say about the scientists?
10 In what way does a narrow zone of storm clouds develop?
11 What will happen to a building when air pressure inside is greater than outside?
选项
A、It will remain the same.
B、Its air will be sucked up.
C、It will explode outward.
D、It will move a little.
答案
C
解析
原文提及“当内部气压大于外部气压时,建筑物会向外爆炸。”故C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2935898.html
相关试题推荐
[originaltext]W:Peter,haveyougotatelevision?M:Yes,Ihave.InfactI’ve
[originaltext]W:Hi,Mike!Doyouthinkthearchitectureenhancestheskyline,
[originaltext]W:Hi,Mike!Doyouthinkthearchitectureenhancestheskyline,
[originaltext]W:Hi,Mike!Doyouthinkthearchitectureenhancestheskyline,
[originaltext]W:Hi,Mike!Doyouthinkthearchitectureenhancestheskyline,
[originaltext](22)WhenHolly,thehousecat,turnedupamilefromtheWes
[originaltext](22)WhenHolly,thehousecat,turnedupamilefromtheWes
[originaltext](22)WhenHolly,thehousecat,turnedupamilefromtheWes
[originaltext](19)ACatholichighschoolinChicagoensureditsfinancial
[originaltext]Theysaythatwritingaboutmusicislikedancingaboutarchi
随机试题
Travelers【T1】_________intotwocategories:thosewhomakelistsandtho
[originaltext]M:Ohmygod,allofthesesoundsofamiliar.Butwhatshouldwe
计算机系统中,CPU对主存的访问方式属于()。A.随机存取 B.顺序存取
下列哪种药物不宜肌肉及皮下注射()A.酚苄明 B.去氧肾上腺素 C.间羟
1.题目:不等式的性质 2.内容: 比较上面的性质2和性质3,指出它
关于基金与股票或债券的差异,以下表述正确的是()A.投资者购买债券后就成为公司
现象之间的相互关系可以归纳为两种类型,即()。A.相关关系和函数关系 B.相关
甲在医院缴费单上加盖自己私刻的收费章,逃避支付妻子透析治疗费用17万余元。甲的行
税收的特征包括( )。A.无偿性 B.灵活性 C.强制性 D.固定性
关于部门规章的立法权限,下列哪些说法是正确的?()A.部门规章规定的事项可以是
最新回复
(
0
)