首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Wouldn’t it be great if you could just look up at the sky and read the weather forecast right away? Well, you can. The forec
Wouldn’t it be great if you could just look up at the sky and read the weather forecast right away? Well, you can. The forec
admin
2017-08-23
30
问题
Wouldn’t it be great if you could just look up at the sky and read the weather forecast right away?
Well, you can. The forecast is written in clouds. If you can read that writing, you can tell something about the atmosphere. With some practice, you can become a pretty good weather forecaster. Who knows, you might even do as well as meteorologists.
Meteorologists use much more information than just the appearance of the clouds to make their forecast. They collect data from all over the world. Then they put it into powerful, high-speed computers. This does give the meteorologists an advantage, because they can track weather patterns as they move from west to east across the country. But you have an advantage, too. You can look at the sky and get your data directly. A meteorologist uses a computer forecast that’s several hours old to make a local forecast.
What are you seeing when you look at a cloud? "A picture of moisture is doing in the atmosphere," says meteorologist Peter Leavitt. There’s moisture throughout the atmosphere. Most of the time you don’t see it, because it’s in the form of an invisible gas called water vapor. Sometimes, the temperature of the air gets cold enough to cause the water vapor to change to liquid water. It’s called condensation, and we see it happen all the time (for example, when humid air from the shower hits the cold glasses of a mirror). When enough water vapor condenses, droplets come in the air. These droplets scatter light. A cloud is seen.
Watching clouds over a day or two tells you a lot more than a single cloud about the weather to come. Changes in clouds show changes in the atmosphere. You should begin to notice patterns. Certain clouds, following each other in order, can signal an approaching storm. But don’t take our word for it; see for yourself.
This passage mainly tells us about how to________.
选项
A、train yourself as a meteorologist
B、be an assistant to a meteorologist
C、forecast the weather by ourselves
D、broadcast the weather forecast
答案
C
解析
由题干中“This passage mainly tells us”应该定位到全文。本文开头通过设问句告诉读者可以利用自己的优势预测天气,而且在文中第三段倒数第二、三句话作者又指出了这个优势指的是什么,文中最后一句话作者又重申了主要观点。
转载请注明原文地址:https://kaotiyun.com/show/wpi7777K
0
大学英语四级
相关试题推荐
TheUnitedStatesestablisheditsfirstnationalpark,Yellowstone,in1872.Yellowstonewasnotonlythefirstnationalparkin
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbooksandotherobjects.Ithasnewspapers,popularpu
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbooksandotherobjects.Ithasnewspapers,popularpu
It’slikethis:Youpassapersononthesidewalkwearingapairofstylishshoesmadeoflightbrownleather,witharoundedto
It’slikethis:Youpassapersononthesidewalkwearingapairofstylishshoesmadeoflightbrownleather,witharoundedto
It’slikethis:Youpassapersononthesidewalkwearingapairofstylishshoesmadeoflightbrownleather,witharoundedto
A、Itcostsnomorethanthenormalconstruction.B、Itdoesapoorjoboffacingextremeweather.C、Itholdsupmuchbettertoex
A、Gotothecinemainspiteofthecoldweather.B、Stayathomeandrest.C、Gooverhislessons.D、Gotofinishhiswork.B女士问男士
A、Theyeattoomuchforlunch.B、Theysleeptoolittleatnight.C、Theirbodytemperaturesbecomelower.D、Theweatherbecomesa
随机试题
如何强化评估主体及客体在教育评估活动中的积极心理反映,抑制或转化其消极的心理反映?
男性、25岁。突发右下腹绞痛,并放射至腰部及阴囊,右大腿内侧,肉眼血尿,B超示右侧输尿管下段结石,相差尿红细胞检查应是女性、25岁。咳嗽、盗汗、午后低热,呼吸科诊断:肺结核,服用利福平0.45gQD,尿色应是
面色萎黄,口唇色淡,头晕目眩,心悸失眠,手足麻木,妇女则见经少色淡或闭经,舌淡,脉细无力的证候是
为保证预算定额的质量,充分发挥预算定额的作用,实际使用简便,在编制工作中应遵循()的原则。
()是指将缺乏流动性的资产转换为在金融市场上可以自由买卖的证券的行为,使其具有流动性。
已知甲公司的经营杠杆系数为3,财务杠杆系数为2;乙公司的经营杠杆系数为2,财务杠杆系数为3。假设两家公司业务量的变动幅度相同,则下列表述中正确的是()。
[*]
在类的定义中,用于为对象分配内存空间,对类的数据成员进行初始化并执行其他内部管理操作的函数是()。
Thedifferencebetweenaliquidandagasisobvious【46】______theconditionsoftemperatureandpressurecommonlyfoundatthes
AstheU.S.findsitselfincreasinglyintertwinedwithitsglobalpartners,keepingaliveitscommitmenttofreetradewillprov
最新回复
(
0
)