首页
登录
职称英语
[originaltext] Lightning is a flow of electricity formed high above the eart
[originaltext] Lightning is a flow of electricity formed high above the eart
游客
2024-02-13
61
管理
问题
Lightning is a flow of electricity formed high above the earth. A single flash of lightning 1.6kilometers long has enough electricity to light one million light bulbs.
The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning rod. This device protects buildings from damage by lightning.
Modem science had discovered that one lightning contains over 15 million volts. A spark between a cloud and the earth may be as long as 13 kilometers, and travel at a speed of 30 mil lion meters per second.
Scientists estimate that there are about 2,000 million flashes of lightning per year. Lightning hits the Empire State Building ’hi New York J0 to 48 times a year. In the United States alone it kills an average of one person every day.
The safest place to be in case of an electrical storm is in a closed car. Outside one should go to low ground and not under a tree. Also, one should stay out of water and away from metal fences. Inside a house, people should avoid opening doorways and windows and not touch wires or metal things.
选项
A、Thirty.
B、Forty-eight.
C、Seven.
D、Thirteen.
答案
C
解析
计算题。听短文时,对选项的数字要做好标记。美国平均一天有一人死于雷电,一周就是七人,一听到“In the United States alone it kills an average of one person every day.”可知正确答案为C。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3448014.html
相关试题推荐
[originaltext]Onewinterdayin1891,aclassatatrainingschoolinMassa
[originaltext]Onewinterdayin1891,aclassatatrainingschoolinMassa
[originaltext]Notmanyyearsago,awealthyandratherstrangeoldmanname
[originaltext]Withthefastdevelopmentofscienceandtechnology,lifeont
[originaltext]Withthefastdevelopmentofscienceandtechnology,lifeont
[originaltext]W:CanIhelpyou,sir?M:Yes,(19)Iwaswantingsomewheretost
[originaltext]Jane:Ron,whatareyoudoing?Ron:Ah,nothing.I’mjustlooking
[originaltext]Jane:Ron,whatareyoudoing?Ron:Ah,nothing.I’mjustlooking
[originaltext]Jane:Ron,whatareyoudoing?Ron:Ah,nothing.I’mjustlooking
[originaltext]M:Howareyournewneighbors?W:Theyarewonderfulpeople.Iam
随机试题
Whenwouldbetheinterview?[originaltext]A:Thankyouforyourapplication,Mr
TonyBlairmayinterviewinthe______withofficialscomingfromforeigncountr
[originaltext]M:Excuseme.Areyougoingtobuyconcerttickets?W:Yes,Iam.
在采用结构化方法进行软件分析时,根据分解与抽象的原则,按照系统中数据处理的流程,
信息的本质是()A.能够消除不确定性的东西 B.有潜在价值 C.各种测
2004年3月14日第十届全国人民代表大会第二次会议正式将《义勇军进行曲》作为国
基金信息披露的()原则要求公开披露的信息易为一般公众投资者所获取。A.规范性
患儿女,3个月。某日上午接种百白破三联混合疫苗,当晚体温38.5℃,并伴有呕吐、
地铁车站中需要设置防烟设施的场所有()。A.防烟楼梯间及前室 B.站台
前列腺癌的骨盆转移是 A.淋巴道转移B.直接蔓延C.种植性转移 D.血道转移
最新回复
(
0
)