首页
登录
职称英语
[originaltext] We only have a few minutes left so I’d like to go over a coup
[originaltext] We only have a few minutes left so I’d like to go over a coup
游客
2023-09-17
64
管理
问题
We only have a few minutes left so I’d like to go over a couple of points before we move on.
Remember, although there are both horizontal and vertical movements of air, the term "wind" is applied only to horizontal movements, and more air is involved in horizontal movements than those vertical movements. And what causes these horizontal movements? Ultimately, it’s the solar radiation, because the unequal heating of the earth rather than the atmosphere produces horizontal differences in air pressure. These differences set winds in motion. Essentially, winds are the nature’s way of balancing uneven distribution of air pressure over the earth. Secondly, let me repeat my answer to the question we had before about wind direction. Many people get confused by what they hear in weather forecast.
We talk about wind direction in terms of where the wind’s coming from, not where it’s blowing to. There is a good reason to this. To weather broadcasters, the origin of winds is more important than its destination. The winds’ origin helps them predict the weather.
Logically, in the northern hemisphere, a north wind tends to bring cold weather, and the south wind warm weather. I haven’t forgotten vertical movements of air. We don’t have time today to talk about them in depth. In our next class then, I’ll begin by discussing updraft and downdraft and how they affect the weather.
I suspect most of you can guess which of the two brings warm weather, and which brings cold.
选项
A、It’s the ultimate cause of winds.
B、It causes vertical movements of air.
C、It reduces differences in air pressure.
D、It’s used to predict weather patterns.
答案
A
解析
Why does the speaker mention solar radiation?
转载请注明原文地址:https://tihaiku.com/zcyy/3021809.html
相关试题推荐
Whatisthespeaker’smajor?Itis______.[br][originaltext]Iamacolleg
Whatisthespeaker’smajor?Itis______.[br][originaltext]Iamacolleg
[originaltext]M:Whereareyougoingonholidaythisyear?W:Idon’tknowyet
[originaltext]M:Whereareyougoingonholidaythisyear?W:Idon’tknowyet
[originaltext]M:Whereareyougoingonholidaythisyear?W:Idon’tknowyet
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:I’dliketobuyahand
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:I’dliketobuyahand
Atwhattimeofdaydidthefirestart?Intheearly______.[br][originaltext
Atwhattimeofdaydidthefirestart?Intheearly______.[br][originaltext
Atwhattimeofdaydidthefirestart?Intheearly______.[originaltext]N
随机试题
IcelandliesfarnorthintheAtlantic,withitsnorthernmosttipactually_____th
Amongthosetanningcustomers,itisestimatedthatmostofthemare______.[br
HowtoApproachDiscursiveWriting?Howtoimprovetheef
有爆炸危险厂房要求净化有爆炸危险粉尘的干式除尘器和过滤器宜布置在厂房外的独立建筑
试验室内拌制混凝土的各种材料称量精度是一样的。
"阳胜则热"的证候性质是A.虚热证 B.假热证 C.实热证 D.阳证似阴
破窗效应是犯罪学的一个理论,该理论认为环境中的不良现象如果被放任存在,会诱使人们
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
任何通货膨胀都一定会对人们的收入和财富的再分配产生影响。()
某企业的10kV供配电系统中含总长度为25km的10kV电缆线路和35km的10
最新回复
(
0
)