B. water vapor 正确答案:B 解析:细节题。本题要求回答“云是由什么形成的”,文章的第一段第三句话“Evaporation is the process of water turning into vapor,which then forms clouds in the sky. ”意思是:蒸发是水转化为蒸汽的过程,这个过程使得云在天空中形成。因此,应选择答案“水蒸气”,故选B。反馈...
百度试题 结果1 题目Clouds are formed from ___. A. water vapor B. evaporation C. the hydrologic cycle D. groundwater 相关知识点: 试题来源: 解析 A 反馈 收藏
A. Clouds are formed from the evaporation of the oceans’ water that is warmed by the sun and rises high into the atmosphere, condensing in tiny droplets on minute particles of dust. B. Clouds form by the sun’s warmth evaporating the water in the oceans, which rises high into the atmos...
从文章第一段第三句:“...water turning into vapor which then forms clouds in the sky...”可推出云是由水蒸气形成的。故应选A。结果一 题目 {{B}}E{{/B}}Clouds are formed from ___. A.water vaporB.evaporationC.the hydrologic cycleD.groundwater 答案 A从文章第一段第三句:“... water ...
out意思是“挡住(光线或声音)”,如:Black clouds blocked out the sun. 乌云遮住了太阳。选项B中的block sth. in意思是“画(某物的)草图”,如:I have blocked in the shapes of the larger buildings. 我勾画出了较大型建筑的轮廓。选项C中的block sth. off意思是“(用路障)封锁、堵塞”,如:The main ...
Clouds are formed when water vapor in the air ___. A. cools down and condenses B. heats up and evaporates C. moves quickly and spreads D. stays still and disappears 相关知识点: 试题来源: 解析 A。解析:本题考查云形成的关键过程。A选项“cools down and condenses”(冷却并凝结),云的形成...
A. precipitating onto the ground B. changing from a solid to a liquid state C. evaporating from the oceans D. being carried by wind 相关知识点: 试题来源: 解析 C 正确答案:C 解析:根据短文,云层主要是靠海洋中的水蒸发而成的。根据第二段第一句,水蒸气从海洋中蒸发之后形成云,风把某些云层带到...
changing from a solid to a liquid state C. evaporating from the oceans D. being carried by wind 相关知识点: 试题来源: 解析 C 正确答案:C 解析:题目问:云彩是怎样形成的?第二段第一句“Evaporated from the oceans,water vapor forms clouds”,通过这段话可知,海洋里的水蒸发,形成水蒸气构成云彩。
百度试题 结果1 题目Clouds are formed when water vapor in the air ___. A. condenses B. evaporates C. precipitates 相关知识点: 试题来源: 解析 A。云是当空气中的水蒸气冷凝(condenses)时形成的。反馈 收藏
空白处的最佳选项。 选项中有两项为多余选项How clouds are formed When we look up at the sky, we often see