2.A从“The latter, often called cloud-to-groundlightning”可知,后者常常被叫作云对地闪电。这个“后者”指的是云和地之间的闪电。3.B “think of.as..”意为“把……看作……”。4.C从下文解释云对地闪电的成因可知,此处指“什么引起了云对地闪电呢?”。5.A雷雨云里一些小的冰粒撞击,引起电荷...
Cloud-to-ground lightning is the most dangerous from of lightning among all types of lightning. Cloud-to-ground lightning occurs when negatively charged electrons on the bottom of the cloud travel towards positive charged ground below. This type of lightning strike tall objects such as buildings, ...
Cloud-to-ground lightning... is the second most common type of lightning, and it causes the greatest threat to life and property ().Lightning often strikes many times in the same place. Skyscrapers and things that are tall may be struck many times during a single storm, and staying under...
Bead lightning is a form of cloud-to-ground lightning in which the lightning is broken up into a series of short, powerful bursts of electricity and resembles a string of beads. Scientists are not quite sure about what causes bead lightning but they believe that as lightning cools and dissipa...
The designers applied a lightening filter to the background image. After three days of rain, the morning sky is finally lightening. Unlike the aforementioned “lightning,” the correct spelling of “lightening” has an “e,” after the word “light” and before both the “n” and the common...
Lightningstrikeshappenwheniceandwaterincloudsrub(摩擦)together,andcauseatmospheric(大气层的)changes.Whenthishappens,itcreatesastaticcharge(静电).Lightningcanstrikeinsidethecloud,betweentwocloudsorbetweenacloudandEarth.It'sthelastkindofstrikethatisthemostdangerousforhumans....
Lightning is a huge spark of electricity that can be created within and between clouds, the air and the ground. When water and ice are moving within a cloud, pressure starts to build. This is due to the warmer air currents moving the elements upwards, and gravity forcing them back down....
Why does lightning strike (击打)?Lightning strikes happen when ice and wa −ter in clouds rub (摩擦) to get ther, and cause atmospheric (大气层的) changes .When this happens , it creates a static charge (静电). Lightning can strike inside the clouds or between a cloud and the Earth...
Most lightning flashes in the air, rather than striking the ground. You see the clouds light up and hear the thunder. The majority of these flashes are “heat lightning” with the electricity flowing between the top and bottom of a cloud, making the whole thundercloud glow. ...
Lightning Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions, both in the atmosphere or with one on the ground, temporarily equalize themselves, causing the instantaneous release of as much as one gigajoule of energy. This discharge may produce a wi...