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
84
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.
【L19】
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
surface
解析
转载请注明原文地址:https://www.kaotiyun.com/show/BTrO777K
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
Accordingtocognitivetheoriesofemotion,______angeroccurswhen______individualsbelievethattheyhavebeenharmedandthat_
______umbrellasarecommonlyusedtoprotect______peoplefrom______rain.
TheFederalGovernment联邦政府TheConstitutionWhenAmericabrokeawayfromBritainin1775,she
Itiscommonlyagreedthatallgovernmentsshouldtakeimmediatemeasurestoendthedreadfulpollutionsituation.
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetictherapy,"aphysicaltherapistexplainedthat"magn
InanuncriticalAugust11,1997,WorldNewsTonightreporton"diamagnetictherapy,"aphysicaltherapistexplainedthat"magn
Ifyouleftyourbookonthetableovernight,youwouldfindthefollowingmorningthatitwasstillexactlywhereyouhadleft
TheeasternbluebirdisconsideredthemostattractivebirdnativeofNorthAmericabymanybird-watchers.
随机试题
行政处罚由违法行为发生地的省级以上地方人民政府具有行政处罚权的行政机关管辖。
我国《工程网络计划技术规程》(JGJ/T121-99)推荐常用的工程网络计划类型包括()
下列各项中,属于财务会计的记账基础的有()。
《消费者权益保护法》规定,保护消费者的合法权益是()。
导游服务的作用包括()。
王明同学成绩不好,跟夏老师关系很紧张,一天,王明悄悄在黑板上写了“夏某某是个大笨蛋!”夏老师查出后暴跳如雷,多次勒令王明当着全班同学的面向自己做深刻检讨,夏老师的行为()
在经历持续多年的补偿性增长之后,我国国防费正在逐步迈向与经济发展同步的协调性增长阶段,2013年中国新增国防费主要有四方面用途,下列说法中不正确的是()。
蓄水池有两个进水口,正常情况下,单独开甲进水口,5小时可以将蓄水池注满:单独开乙进水口,3小时可以注满。现由于出水口出现渗水,同时开甲、乙两个进水口,2小时才能注满。假定渗水速度恒定,如果单独开甲进水口,需要多少分钟才能将蓄水池注满?()
Collegestudentsaremorestressedoutthaneverbefore—atleastaccordingtothelatestfindingsofalarge,nationalsurveyth
下列关于计算机病毒的叙述中,正确的是______。
最新回复
(
0
)