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
58
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://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
[originaltext]MayIknowhowoldyouare?[/originaltext]A、20yearsago.B、I’m2
招标书的标题的正确写法是()。A.招标项目名称+文种 B.招标单位名称+中标
当呼吸肌完全松驰时,肺容纳的气体量等于()A.肺活量 B.余气量 C.功
办理个人教育贷款时,审查与审批中面临的操作风险不包括()。A.借款申请人所提交
题目:《东、中、西部发展差异》 内容
根据我国《义务教育法》的规定,() A、所有六周岁的儿童都必须入学接受义务教
三、写作题 以“教育从心开始”为题,写篇议论文,800字以上。
德育的永恒主题是() A.理想教育B.爱国主义教育 C.劳动教育D
属于工程造价阶段的是( )A.建设工程造价的合理估计 B.在初步设计阶段,根
根据《关于进一步加强水电建设环境保护工作的通知》,( )作为主体工程内容,不纳
最新回复
(
0
)