What causes the seasons? A. The rotation of the earth. B. The movement of the moon. C. The tilt of the earth. D. The distance between the E. arth and the sun. 相关知识点: 试题来源: 解析 C。本题考查对季节形成原因的掌握。地球的倾斜导致不同地区在不同时间接收到的太阳辐射不同,从...
A. The rotation of the Earth. B. The gravitational pull of the Moon. C. Convection currents in the mantle. D. The impact of asteroids. 相关知识点: 试题来源: 解析 C。解析:地幔中的对流运动是地幔运动并导致地球表面变化的主要原因。A选项,地球的自转不是地幔运动的主要原因;B选项,月球的引力主要...
A. The rotation of the Earth. B. The movement of the moon. C. The heat of the sun. D. The blowing of the wind. 相关知识点: 试题来源: 解析 B。潮汐是由月球的运动引起的,选项 A 地球的自转不是潮汐形成的主要原因;选项 C 太阳的热量不是潮汐的成因;选项 D 风的吹拂不会导致潮汐,所以选...
We see the moon change its shape. What is this called? A. Eclipse B. Rotation C. Revolution D. Phases 相关知识点: 试题来源: 解析 D。A 选项“Eclipse”是日食或月食;B 选项“Rotation”是自转;C 选项“Revolution”是公转;D 选项“Phases”是月相。我们看到月亮形状的变化叫做月相。涉及的天文知识...
. The rotation(自转)of the earth gives us day and night. . We call the family of the sun and its planets the Milky Way. 相关知识点: 试题来源: 解析 (1)B(2)C(3)D(4)A(5)D (1)本文介绍了太阳系及其行星。由第二段第一句"The sun is one of the stars. "和第一段第三句中 ...
What is the main cause of the seasons? A. Earth's rotation B. Earth's revolution C. Moon's gravity D. Sun's gravity 相关知识点: 试题来源: 解析 B。本题考查季节的主要成因。选项 A,地球自转产生昼夜交替;选项 B,地球绕太阳公转导致太阳直射点的变化,从而产生季节变化;选项 C,月球引力主要影响...
By definition, the Earth’s rotation is the amount of time that it takes to rotate once on its axis. This is, apparently, accomplished once a day – i.e. every 24 hours. However, there are actually two different kinds of rotation that need to be considered here. For one, there’s ...
The rotation of the earth gives us day andnight.D. We call the family of the sun and its planetsthe Milky Way. 相关知识点: 试题来源: 解析 1.B [解析]由第一段中的“Stars can give out heatand light.."和第二段中的“The sun is one of thestars.”可知,太阳可以给我们热和光。2....
The rotation(旋转) of the earth gives us day and night. The earth goesaround the sun once every year to give us different seasons.There are eight planets moving around the sun. We call the family of the sun andits planets the solar system. Mercury is the nearest to the sun, so it ...
The rotation(自转) of the earth gives us day and night.D. We call the family of the sun and its planets the Milky Way. 相关知识点: 试题来源: 解析 I.1.B点拨:根据“The sun is one of the stars”和“Stars can give out heat and light.. 可知,太阳给我们光和热。2.C点拨:根据句意:...