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
88
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
Whydopeoplealwaysspendmoremoneythanplannedinsupermarkets?
Payandproductivity,itisgenerallyassumed,shouldberelated.Buttherelationshipseemstoweaken【C1】______peoplegetolder
Whatwasthewomandoingwhenthepolicemanfoundher?
Whatwasthewomandoingwhenthepolicemanfoundher?
Thefridgeisconsiderednecessary.Ithasbeensosincethe1960swhenpackagedfoodlistappearedwiththelabel:"Storeinth
随机试题
在胸椎侧位片上难以清晰显示的椎体是
咯血时轻轻拍击_______侧背部,嘱病人不要屏气,以免发生_______,使血液引流不畅形成血块,导致窒息。
致使承包人行使建设工程施工合同解除权的情形包括()。
()绘制步骤是先将所有节点按其最早时间定位在时标网络计划表中的相应位置,然后再用规定线型(实箭线和虚箭线)按比例绘出实工作和虚工作。
Whydoyouwantanewjob______yougotsuchagoodonealready?
字典、词典的特点不包括()。
一、注意事项1.申论考试,与传统作文考试不同,是对分析驾驭材料的能力与对表达能力并重的考试。2.作答参考时限:阅读资料40分钟,作答110分钟。3.仔细阅读给定的资料,按照后面提出的“申论要求”依次作答。二、给定资料材
食物中毒:蘑菇
下列关于ASCII编码的叙述中,正确的是
DietandtheDemandforFoodThedemandfordifferentfoodproductsdependsonfourfactors:thenumberofpeopleintheare
最新回复
(
0
)