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
28
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 a bout 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, ff 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 mason 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.
It can be seen from the passage that the two immediate goals of hurricane research are______.
选项
A、enough time and money
B、preparation and warnings
C、prediction and control
D、protecting people and their properties
答案
D
解析
事实细节题。由第一段最后一句Then people living in the path of a hurricane can protect themselves and their belongings可知,研究飓风的直接目的是为了保卫人的生命和财产,故应选D。
转载请注明原文地址:https://kaotiyun.com/show/UYJd777K
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
A、Onlyamonghunters.B、Amongprimaryschoolpupils.C、Amongbeautifulladies.D、Amongpeoplewhoarediscussingpolitics.D
Millionsofman-hoursarelosttoindustrythroughemployeessufferingbackacheorstraincausedbyoperatingpoorlydesignedma
Somepeopleclaimthattelevisionisgoodforchildrenbecauseitgetschildrenclevererbywatchingit,whileothersthinkthat
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Withanagingpopulationgrowingrapidly,Chinaisfacedwithaprospectoflabourshortage.Somepeoplesuggestthatthegovern
随机试题
ODBC分层体系结构的四个组成部分中,要完成ODBC外部接口工作的是()
产妇,29岁,顺产后3天,主诉阵发性不规律腹痛,哺乳时腹痛明显。检查:体温36.7℃,子宫底于脐下3横指,无压痛,双侧宫旁压痛(一),恶露血性,量不多,无臭味。该产妇最可能的情况是
活体内出现的不溶于血液的异常物体,沿血流运行阻塞相应的血管腔的过程叫
A、苯胺-邻苯二甲酸盐试剂B、三苯四氮唑盐试剂C、硝酸银试剂D、3,5-二羟基甲苯-盐酸试剂E、过碘酸加联苯胺使酮糖和含有酮糖的低聚糖呈红色
A、治愈率,显效率,好转率等B、适当的用药时间C、风险/效果比D、成本/效果比E、适当的途径、剂量和疗程反映了用药经济性和安全性()
已知a,b,c∈R+,求证:abbbcc≥.
动机强度与学习效率的关系是()。
讨论:问题:解决
每个人都有命运不公平和身处逆境的时候,这时我们应该相信:________。许多事情刚开始时,丝毫看不见结果,更谈不上被社会所承认。要想成功就应付诸努力,既不要烦恼,也不要焦急,踏踏实实地工作就会得到快乐。而一味盯着成功的果实,肯定忍受不了苦干的寂寞,到头来
德育过程的基本矛盾是
最新回复
(
0
)