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
A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather
A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather
admin
2014-09-27
71
问题
A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather changes. Weather forecasts are able to determine the speed of air masses and fronts; to determine whether an individual pressure area is deepening or becoming shallow and whether a front is increasing or decreasing in intensity. They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a synoptic picture of conditions in the atmosphere at a given time.
All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States weather Bureau issues information a-bout approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day "outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an analysis of the upper air levels with often set the stage for the development of air masses, fronts, and storms.
Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies. But the limitations of weather modification have prevented meteorological results except in the seeding of super-cooled, upslope mountainous winds which have produced additional oro-graphical precipitation on the windward side of mountain ranges. Nevertheless, they have provided a clearer understanding of the fundamentals of weather elements.
The observation of weather conditions by satellites is advantageous because it______.
选项
A、gives the scientist information not obtained readily otherwise
B、enables man to alter the weather
C、uses electronic instruments
D、is modern
答案
D
解析
本文第二段第二句提到运用卫星,科学家可以对只有很少气象站的地区的气象进行分析、判断,这与答案D意思相近,所以本题正确答案应当为D。
转载请注明原文地址:https://kaotiyun.com/show/OsRd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
TheSupremeCourt’sdecisionsonphysician-assistedsuicidecarryimportantimplicationsforhowmedicineseekstorelievedying
TheSupremeCourt’sdecisionsonphysician-assistedsuicidecarryimportantimplicationsforhowmedicineseekstorelievedying
TheSupremeCourt’sdecisionsonphysician-assistedsuicidecarryimportantimplicationsforhowmedicineseekstorelievedying
Aweathermapisanimportanttoolforgeographers.Asuccessionofthreeoffourmapspresentsacontinuouspictureofweather
Aweathermapisanimportanttoolforgeographers.Asuccessionofthreeoffourmapspresentsacontinuouspictureofweather
Aweathermapisanimportanttoolforgeographers.Asuccessionofthreeoffourmapspresentsacontinuouspictureofweather
随机试题
著名的唐朝浮雕石刻“昭陵六骏”分别是_______、_______、_______、_______、_______、_______。[山东2018]
下列哪一项不是常见的洋地黄中毒表现()
从事各种生产劳动,能引起劳动者职业性紧张的因素中,不包括
某建筑公司雇工修建某镇农贸市场,但长期拖欠工资。县劳动局作出《处理决定书》,要求该公司支付工资,并加付应付工资50%的赔偿金。该公司在法定期限内既未履行处理决定,也未申请行政复议和提起诉讼。下列选项不正确的有:
土的三相比例指标(物理性质指标)中可直接测试的指标为:()
张某投资某债券,买入价格为100元,一年后卖出价格为110元,期间获得利息收入10元,则该投资的持有期收益率为()。
刘某之子小刘(5岁)在幼儿园将小韩(6岁)的眼睛划伤,至其失明,小韩的父亲韩某诉至法院,要求刘家赔偿。下列关于本案诉讼参与人的表述,正确的是()。
改革开放是党在新的时代条件下带领全国各族人民进行的新的伟大革命,是当代中国最鲜明的特色。()
简述知、情、意、行的相互关系。
在考生文件夹下有一个数据库文件“samp3.mdb”,里面已经设计了表对象“tEmp”、查询对象“qEmp”、窗体对象“fEmp”和宏对象“mEmp”。同时,给出窗体对象“fEmp”上一个按钮的单击事件代码,请按以下功能要求补充设计。(1)将窗体
最新回复
(
0
)