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
Lightning Cloud-to-ground lightning bolts are a common phenomenon, about 100 strike Earth’s surface every single second, yet
Lightning Cloud-to-ground lightning bolts are a common phenomenon, about 100 strike Earth’s surface every single second, yet
admin
2018-06-10
74
问题
Lightning
Cloud-to-ground lightning bolts are a common phenomenon, about 100 strike Earth’s surface every single second, yet their power is extraordinary. Each bolt can contain 【L1】______volts of electricity.
This enormous 【L2】______is caused by an 【L3】______between positive and negative charges. During a storm, 【L4】______of rain, ice, or snow increase this imbalance and often negatively charge 【L5】______storm clouds. Objects 【L6】______, like steeples, trees, and the Earth itself, become 【L7】______—creating an imbalance that nature seeks to remedy 【L8】______between the two charges.
A step-like series of 【L9】______, called a stepped leader, works its way incrementally downward 【L10】______a storm cloud toward the Earth. Each of these segments is about 46 meters long. When the lowermost step comes within 46 meters of a positively charged object it is met by a 【L11】______ of positive electricity, called a streamer, which can 【L12】______ through a building, a tree, or even a person. The process forms a channel 【L13】______ electricity is transferred as lightning.
Some types of lightning, including the most common types, never leave the clouds but 【L14】______ between differently charged areas 【L15】______. Other rare forms can be 【L16】______ extreme forest fires, volcanic eruptions, and snowstorms. Ball lightning, a small, charged sphere that floats, glows, and bounces along oblivious to the laws of gravity or physics, still 【L17】______.
Lightning is extremely hot—a flash can 【L18】______around it to temperatures five times hotter than the sun’s 【L19】______. This heat causes surrounding air to rapidly expand and vibrate, which creates the 【L20】______we hear a short time after seeing a lightning flash.
【L10】
Lightning
Cloud-to-ground lightning bolts are a common phenomenon—about 100 strike Earth’s surface every single second—yet their power is extraordinary. Each bolt can contain up to one billion volts of electricity.
This enormous electrical discharge is caused by an imbalance between positive and negative charges. During a storm, colliding particles of rain, ice, or snow increase this imbalance and often negatively charge the lower reaches of storm clouds. Objects on the ground, like steeples, trees, and the Earth itself, become positively charged—creating an imbalance that nature seeks to remedy by passing current between the two charges.
A step-like series of negative charges, called a stepped leader, works its way incrementally downward from the bottom of a storm cloud toward the Earth. Each of these segments is about 46 meters long. When the lowermost step comes within 46 meters of a positively charged object it is met by a climbing surge of positive electricity, called a streamer, which can rise up through a building, a tree, or even a person. The process forms a channel through which electricity is transferred as lightning.
Some types of lightning, including the most common types, never leave the clouds but travel between differently charged areas within or between clouds. Other rare forms can be sparked by extreme forest fires, volcanic eruptions, and snowstorms. Ball lightning, a small, charged sphere that floats, glows, and bounces along oblivious to the laws of gravity or physics, still puzzles scientists.
Lightning is extremely hot—a flash can heat the air around it to temperatures five times hotter than the sun’s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.
选项
答案
from the bottom of
解析
转载请注明原文地址:https://kaotiyun.com/show/LTrO777K
本试题收录于:
CATTI三级口译综合能力题库翻译专业资格(CATTI)分类
0
CATTI三级口译综合能力
翻译专业资格(CATTI)
相关试题推荐
TheBeatles甲壳虫乐队TheEnglishrockmusicgroupTheBeatlesgavethe1960sitscharacteristicmusicalflavorand(1)aprofoun
PresidentGeorgeW.Bush布什总统GeorgeW.Bushisthe43rdPresidentoftheUnitedStates.Hew
TheFederalGovernment联邦政府TheConstitutionWhenAmericabrokeawayfromBritainin1775,she
MyhusbandisleavingforAmerica
Havingbeenrobbedofeconomicimportance,thosestatesarenotlikelytocountonverymuchininternationalpoliticalterms.
Bothlongitudeandlatitude______indegrees,minutesandseconds.
Acommonquestionthatpeopleaskastorywriteriswhetherornothehasexperiencedwhathehaswrittenabout.
InotherpartsofChinawheremajorearthquakeshavebeen______byforeshocks,unusualbehaviorinrats,fish,andsnakeswereob
Mostearthquakesoccurwithintheupper15milesoftheearth’ssurface.Butearthquakescananddooccuratall【C1】________to
随机试题
胎盘附着部位全部修复需至产后
怎样进行滚动轴承的故障诊断并进行预紧力调整控制?
采用非公开竞争性考试方法录用公务员的“特殊职位”以及如何简化程序,采用什么样的评测办法,必须经( )批准。
A.可加重组织损伤B.可起到调理素的作用C.可使炎症局限D.可清除致炎因子E.可稀释毒素纤维蛋白渗出
主司二便的脏是
关于职能式组织的特点,下列说法错误的是()。
根据地租理论,最劣等土地的级差地租()。
施工合同履行过程中发生工程变更时,应由()向承包人发出变更指令。
期货交易与现货交易在()方面是不同的。
请从给出的四句话中找出没有标点错误的一句。()
最新回复
(
0
)