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
Will people ever tame the destructive, often deadly hurricane? Either scientists or meteorologists do not yet understand the for
Will people ever tame the destructive, often deadly hurricane? Either scientists or meteorologists do not yet understand the for
admin
2010-06-30
87
问题
Will people ever tame the destructive, often deadly hurricane? Either scientists or meteorologists do not yet understand the forces that generate a hurricane, but perhaps with study and time they can learn to control these enormous storms. One important study project is called Hurricane Strike. This project studies the huge Storms that do harm to thousands of people and destroy property worth millions of dollars. Scientists in this project are trying to learn more about hurricanes, especially the speed and direction of the winds. Then people living in the path of a hurricane can protect themselves and their belongings.
Dr. Robert Sheets, the chief forecaster at the National Hurricane Center in Miami, explained the importance of this information. "When we post a hurricane warning for a part of the coast," he said, "people spend about $8,000 per mile in preparation. If the hurricane does not strike land where we announced or posted warnings, then that money is wasted. But, even worse, the next time we put out a warning, the people might not pay attention to us." That is the reason for Project Hurricane Strike—to increase the accuracy of the forecast. They need to predict where the storm will be twenty-four hours later.
One hurricane, named Belle, made forecasters feel trouble. At first it appeared to be headed for Florida, so warnings were posted. However, the storm stayed at sea. Next, warnings were posted in Georgia and the Carolinas, but again it did not hit. In fact, Belle first hit the coast in New York. Millions and millions of dollars were spent on the preparation that was not needed.
Dr. Sheets said, "We received hundreds of letters. People couldn’t understand how science could send people to the moon but not predict a storm’s path. However, we still can’t tell. The only way to find out about hurricanes is from inside them." Prediction is what Project Hurricane Strike is about, and that is part of the challenge that faces meteorologists.
The other part of the challenge is controlling hurricanes. Meteorologists work inside a hurricane by "seeding" the center "eye" with silver iodide. The silver iodide causes raindrops to form and fall over the ocean. Taking the water out of the clouds reduces the energy of the storm. So, the rotation of the storm decreases. The wind velocity also decreases. Meteorologists can sometimes use this method to bring a dangerous hurricane under control.
Scientists have already seeded some hurricanes that were forming over the Atlantic Ocean. Some of these experiments were successful in decreasing wind speeds.
The two factors concerning hurricanes that scientists most want to learn about are ______.
选项
A、conditions in the "eye" and conditions at the edge
B、the forces that generate them and theft frequency
C、the number of people injured and the amount of damage done
D、how fast and where they move
答案
D
解析
由文章第一段倒数第二句... especially the sped and direction of the winds可知。
转载请注明原文地址:https://kaotiyun.com/show/rJJd777K
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
ItisinterestingtoreflectforamomentuponthedifferencesintheareasofmoralfeelingandstandardsinthepeoplesofJap
Itwasamomentmostbusinessexecutiveswouldpausetosavor:latelastyear,GermansportinggoodspioneerAdidaslearnedthat
Itwasamomentmostbusinessexecutiveswouldpausetosavor:latelastyear,GermansportinggoodspioneerAdidaslearnedthat
Ithasbeenmorethan30yearssincemanfirstlandedonthemoon.Somepeoplethinkthatspaceresearchisawasteofmoney.Di
Thefridgeisconsiderednecessary.Ithasbeensosincethe1960swhenpackagedfoodlistappearedwiththelabel:"Storeinth
Asaresultofrisinguniversitycosts,whataremanystudentsfindingitnecessarytodo?
Ithasbeennecessarytoreferrepeatedlytotheeffectsofthetwoworldwarsinpromotingallkindsofinnovation.Itshouldb
Ithasbeennecessarytoreferrepeatedlytotheeffectsofthetwoworldwarsinpromotingallkindsofinnovation.Itshouldb
随机试题
对于组织设计的这六项关键要素,请讨论关于每项要素的传统和当代观点。
“知识就是力量”这句名言出自【】
食品经营者在采购食品及其原料时应当向销售者索取哪种证书
当水质发黑、发臭时水中溶解氧浓度可
A.对乙酰氨基酚B.氯苯那敏C.含伪麻黄碱的复方制剂D.阿司匹林E.含可待因的复方制剂减少打喷嚏和鼻溢液同时又有轻微的镇定作用的是()。
甲公司是一家机械加工企业,采用管理用财务报表分析体系进行权益净利率的行业平均水平差异分析。该公司2012年主要的管理用财务报表数据如下:为了与行业情况进行比较,甲公司收集了以下2012年的行业平均财务比率数据:要求:基于甲公司管理用财
根据下列资料。完成以下问题。2013年4月末,广义货币(M2)余额103.26万亿元,同比增长16.1%,分别比上月末和上年同期高0.4个和3.3个百分点,狭义货币(M1)余额30.76万亿元,同比增长11.9%,分别比上月末和上年同期高0.1个
Thepassagemainlydiscusses______.Theauthorwouldmostlikelyagreewithwhichofthefollowingstatements?
Asmallgroupofcontestantshasbeenselectedfollowinganationwidesearch______overthelastsixmonths.
A、Somecosmetics.B、Somejewelry.C、Somecandy.D、Somestylishclothes.A
最新回复
(
0
)