Landscape 风景画 A landscape in art is drawing things that one can see in nature, such as trees, mountains, oceans, rivers and woods. 风景画是指描绘树木、山峰、海洋、河流、树林等自然景物的艺术。 The sky is always in a

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Violin 小提琴 The violin is one of the most important classic instruments. 小提琴是最重要的古典乐器之一。 The violin is more than 500 years old. 小提琴有500多年的历史。 Italian instrument makers made violins in the 16th ce

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Calculator 计算器 A calculator is a device for calculations in math. 计算器是数学上用于计算的工具。 It is not a computer. 它不是计算机。 And it is usually small, digital and inexpensive. 它通常是小巧且廉价的电子产品

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Rock 岩石 If you look around you, you can find some rocks very easily. 如果你环顾四周的话,你轻而易举就能发现一些岩石。 Rocks are minerals and they are all from the Earth. 岩石是矿物质,全都来自于地球。 What c

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Lizard 蜥蜴 A lizard is a reptile and it has a scaly skin and short neck. 蜥蜴是爬行动物,它有鳞片状皮肤和短脖子。 Also, they usually have a small head and a long tail. 而且,它们通常头小,尾巴长。 Mostly they live

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Levee 堤 A levee is a system to control water levels. 堤是一种控制水位的系统。 When it rains a lot, floods can happen. 降雨很多时,就可能会发生洪水。 People build walls along rivers or coasts to prevent floods. 人们在河边

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Transportation 运输工具 What is transportation? 什么是运输工具? It includes cars, subways, buses, trains, airplanes and ships. 它包括汽车、地铁、公交车、火车、飞机和轮船。 What happens if we don't have any transport

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Mantle 地幔 We are living on the surface of the Earth. 我们生活在地球表面。 So, what is inside the Earth? 那么,地球内部是什么? There is a mantle under the surface of the Earth. 地球表面以下是地幔。 The mantle takes

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Egg 蛋 What is an egg? 蛋是什么呢? Birds and fish give birth to many babies at one time. 鸟和鱼一次能生下很多宝宝。 They can do this by laying many eggs at one time. 这是因为它们一次能产很多蛋。 The baby birds or th

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Cloud 云 A cloud is a massive droplets in the sky. 云是天空中大量的小水滴。 When the sun heats up the Earth, water on the Earth evaporates and becomes a cloud. 地球受到太阳的烘烤时,地球上的水就会蒸发并凝结成云。

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Crater 火山口 A crater is a big hole in the ground. 火山口就是地面上的大洞。 Volcanic activity can make craters. 火山活动会形成火山口。 After a volcano erupts, we see a huge hole on the top of the volcano. 火山喷发后,火

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Neighbor 邻居 Who are neighbors? 谁才是邻居呢? They live near each other. 他们彼此住得很近。 They live in the same town or city. 他们住在同一城镇或城市中。 They can meet each other when they walk out the door. 他们出门

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The Hopi 霍皮族人 The hopi Indians are one of the biggest American Indian tribes. 霍皮印第安族是美国最大的印第安部落之一。 One of the hopi villages is the oldest American Indian village in the United States. 其中的霍皮村是

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Seeds 种子 A seed becomes a plant. 种子长成植物。 You sow seeds in the ground and they become plants. 你在土地里播种,它们就会长成植物。 The young plant grows up to be an adult plant, then it has fruit and flowers. 幼苗长大

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The Solar System 太阳系 The solar system consists of the sun, eight planets and billions of small planets. 太阳系包括太阳、八大行星和数十亿颗小行星。 These eight planets and small planets orbit around the sun. 八大行星和小

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Water Pollution 水污染 Can you see a curved fish? 你看到过畸形鱼吗? Curved fish live in dirty water. 畸形鱼生活在污水中。 Curved fish started to appear because of water pollution. 它们的出现是因为水污染。 How does w

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Gravity 重力 What happens if you drop a book? 如果你丢一本书会发生什么? Absolutely, it will fall down to the floor. This is called gravity. 很显然,书会掉到地上。这就叫做重力。 Gravity pulls from the center of the Ea

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Cactuses 仙人掌 Cactuses are very unique plants. 仙人掌是非常奇特的植物。 They live in hot and dry places like deserts. 它们生活在类似沙漠这样的炎热干旱地带。 They usually don't have leaves 它们通常没有叶子。

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Civil War 美国内战 The American Civil War was the deadliest war in American history. 美国内战是美国史上最致命的一场战争。 Over 620,000 people died during the war. 六十二万多人死于该战争。 When Abraham Lincoln became

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Transportation 交通工具 Types of transportation are trains, buses, cars, airplanes and so on. 交通工具的类型分为:火车、公交车、汽车、飞机等等。 They are for people or goods to move from one place to another. 它们是用来

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