解析 B。解析:云是由水汽组成的,云是动作的承受者,要用被动语态。A选项made of是主动语态的形式;C选项make of是主动语态的一般现在时形式;D选项were made of是一般过去时的被动语态;B选项are made of是一般现在时的被动语态,符合题意,所以选B。反馈 收藏 ...
Clouds are made of water drops or ice crystals (冰晶) floating (飘浮) in the air. There are many kinds of clouds. Clouds are of great importance to Earth's weather. The sky can be full of water. But most of the time you can't see the water. The drops of air are too small to...
百度试题 结果1 题目The clouds are made of ___. A. water B. ice C. snow D. vapor 相关知识点: 试题来源: 解析 D。云是由水汽组成的,选项 A“water”是水;选项 B“ice”是冰;选项 C“snow”是雪。反馈 收藏
Clouds are made of water vapor.The atmosphere has a lot of oxygen in it for animals to breathe,but the rest of our "air" 地球是唯一的植物在我们的太阳系,人、其他动物和植物装live.there于罐中是喝或居住的大量水in。 水是存在地球在它的大海洋和在天空中! 云彩由水蒸气制成。大气有很多氧气在...
【题文】 Clouds are made of small drops of water or tiny pieces of ice. The water and ice in clouds come from the Earth ’s surface,especially from lakes,rivers,and oceans. Water on the surface is heated. It changes into a gas called water vapor(水蒸气). Water vapor goes up into ...
Are there clouds? Can you see the Sun? Is there wind? How hot or cold is it? Here are some key (关键的) words and information about weather. Clouds. Clouds are made when water vapor cools. Water vapor is water in the air. Clouds are made of many small drops of water or ice. ...
Clouds are made of small drops(水滴) of water or tiny pieces of ice. The water and ice in clouds come from Earth’s surface, especially from lakes, rivers, and oceans. Water on the surface is heated. It changes into a gas called water vapor(水蒸气).Water vapor goes up into the air...
Clouds are made of small drops of water or tiny pieces of ice. The water and ice in clouds come from the Earth's surface, especially from lakes, rivers, and oceans.Water on the surface is heated.It changes into a gas called water vapor(水蒸气). Water vapor goes up into the air. Th...
Clouds are made of water.They may be made of very small drops of water.They may also be made of snow crystals(结晶体).Snow crystals are very,very small crystals of ice.Ice is frozen water.It is a solid.There can be snow and ice everywhere in winter....
Clouds are made up of tiny ___. A. rain drops B. water vapor C. ice crystals D. water droplets 相关知识点: 试题来源: 解析 D。云是由微小的水滴组成。选项 A 雨滴是较大的水滴;选项 B 水蒸汽是形成云的前一状态;选项 C 冰晶在特定条件下才会有,不是云的主要组成部分。反馈...