Why are the Seasons Different?（季节为什么不一样？）
This is the Earth. It is on a tilt. It goes round the Sun once a year. This gives us seasons.
In the summer,your part of the world is nearer to the Sun. Days are longer. It is warmer. In the winter,your part of the world is further away from the Sun. Days are shorter and nights are longer. It is colder.
【有趣的英语文化小知识 英语有趣的科普小知识有哪些】The top half of the Earth is the Northern Hemisphere,and the bottom half of the Earth is the Southern Hemisphere. The Equator is the line round the middle of the Earth.It is always hot at places on the Equator. When it is summer in the Southern Hemisphere,it is winter in the Northern Hemisphere here.

• 洪水泡过的东西还能用吗
• 蟑螂出现的原因
• 矿泉水瓶盖直径
• 有蟑螂的原因
• 化肥在水田中的亩用量一般是多少
• 孔雀的养殖价值，孔雀的外形特征
• 羊、牛、猪、马、牦牛等牲畜适合在青海的农村养殖吗
• 白葱牛肝菌与红葱牛肝菌的区别
• 万丰505小麦品种的特征特性
• 大葱的亩产量是多少