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
专升本
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
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
admin
2018-07-18
15
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.(71)
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(小水滴)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、broadcast the weather forecast
B、forecast the weather by ourselves
C、train yourself as a meteorologist
D、be an assistant to a meteorologist
答案
B
解析
主旨大意题。通过文章的第一段和最后一段可以判断,本文主要是为了让读者自己学习通过云层预报天气。故选B。
转载请注明原文地址:https://kaotiyun.com/show/bgPC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smost
A、Customerandwaitress.B、Teacherandstudent.C、Bossandsecretary.D、Lawyerandclient.C
Americansspendalotofmoneyintheirdailylives.Workingpeoplespendmoneyontransportationtoandfromworkandonvariou
(Para.4,PassageTwo)Themostcommonresponseoftouristsfacedwiththepoverty-strickenistoignorethemandfocusthei
Heclimbedupintothetreeandpickedallthefruit()reach.
Much()myregret,Iamunabletoacceptyourkindinvitation.
Let’slistentotheradioprogramthattheteachermentioned,______?
Shetoldusbrieflyabouthowtheysucceededin______thenewproduct.
A、Shewilldrivethemantothesupermarket.B、Themanneedn’tgoshoppingeveryweek.C、Themanshouldbuyacarofhisown.D、
Scientistshavelearnedalotaboutthekindsoffoodpeopleneed.Theysaythatthereareseveralkindsoffoodthatpeoplesho
随机试题
路由器用于连接异构网络时,它收到一个IP数据报后要进行许多操作,这些操作不包含________。
某女,50岁,身高1.58m,体重78kg。近三个月饮水及尿量较多,半月前因胆石症作胆囊切除术,术后伤口不能愈合,查血糖15.5mmol/L(280mg/dl),尿糖(++++),本患者目前应采用哪种疗法
患者,女,35岁。因鼻塞、流涕、无咳嗽症状门诊治疗,测体温37.5℃,诊断为感冒,开药如下:头孢噻啶2g+5%葡萄糖250mL,静注,一天一次。对其分析不正确的是()。
下列工程中,属于分部工程的是()。
教师、学生、学校、家庭、社区等都属于课程的有机组成部分。()
论述人民代表大会制度的适宜性。
尸体检验应在法医的主持下进行。()
简述认知结构迁移理论的基本观点。
关系模式规范化需要考虑数据间的依赖关系,人们已经提出了多种类型的数据依赖,其中最重要的是函数依赖和______。
FeedingtheMassesaLoadofManureTheGreenRevolutionMyth,NormanBorlaug,andWorldHunger[A]Mostpeopledon’tkno
最新回复
(
0
)