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
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickl
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickl
admin
2012-08-03
54
问题
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighboring areas untouched. (79)
Conventional (普通) computer models of the atmosphere have limited value in predicting short-lived local storms because the available weather data are generally not detailed enough to allow computers to see clearly the small atmospheric changes that come before these storms.
In most nations, for example, weather-balloon observations are taken just once every twelve hours at location typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or "nowcasts", was impracticable. The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were beyond overcoming. Fortunately, scientific and technological advance have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observations over large regions at a relatively low cost. Communication satellites can transmit data around the world cheaply and immediately, and modern computers can quickly compile and analyze this large volume of weather information. (80)
Meteorologists (气象学家) and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly.
As meteorologists have begun using these new technologies in weather forecasting offices, nowcasting is becoming a reality.
Nowcasts are______.
选项
A、local forecasts
B、short-range forecasts
C、medium-range forecasts
D、long-range forecasts
答案
B
解析
本题属词义判断题。nowcasts是个“拼缀词”,由nowadays和forecasts两个词各取一部分相加,构成了一个新词,意思是“迅发天气预报”或“短期天气预报”,故可解释为short—range forecasts。
转载请注明原文地址:https://kaotiyun.com/show/2KJO777K
0
成人本科学位英语
相关试题推荐
Scientistshavewonderedforalongtimeifanimalscanlearntotalkashumanbeingsdo.Severalyears【C1】______,twopsycholo
AnunusualcharacteristicofAmericanuniversitylifeisitscompetitiveness.Institutionsofthesameclass【C1】______forfacul
Thechiefengineerstated______hebelieveditwasnecessarytostudytheproposalsforseveralmoremonthsbeforemakingadeci
ThereoughttobelessanxietyovertheperceivedriskofgettingSARSthat______inthepublicmindtoday.
OurculturehascausedmostAmericanstoassumenotonlythatourlanguageisuniversalbutthatthegesturesweuseareunderst
ThecurrentemergencyinMexicoCitythathastakenoverourlivesisnothingIcouldeverhaveimaginedformeormychildren.
Maryhaslonghadthedesire______afamouswritereventhoughthestudyofwritingwouldrequireyearsofsacrificeonherpart.
Abridgewouldcostfarmorethanatunnel,butyouwouldbeabletogobyrailorbycaronabridge,whereasatunnelwouldpr
他害怕批评,要他认识自己的错误是不容易的。
大多数学生发现,亚里士多德的哲学思想比他们原先所想的要复杂得多。
随机试题
外汇
不属于HASTE序列优点的是
A.40mmol/LB.24mmol/LC.50mmol/LD.12mmol/LE.25mmoL/L
血淋,尿色深红治疗方剂是()
恶性肿瘤患者化疗期间,白细胞降至3×109/L,正确的处理是
中断供电将影响实时处理计算机及计算机网络正常工作,应按()要求供电。
张繁30多岁时她女儿出生,2008年她女儿的年龄是她的年龄的,2009年张繁多少岁?
下列哪项是恶性肿瘤的最主要诊断依据
A、Keeptheirpaycheckandbenefits.B、Dosomesoulsearching.C、Askforadvicefromtheirfriends.D、Changethejobimmediately.
A、Shewasworkingonthatday.B、ShetaughtJapanesestudents.C、Shereceivednothingfromherstudents.D、Shereceivednochoco
最新回复
(
0
)