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与美国小学生一起学英文第10册 第1期:臭氧层
The Ozone Layer 臭氧层 Can humans live away from the Earth? 人类能远离地球生活吗？ Maybe it will be possible in the future but it is impossible now. 或许将来可以，但现在不行。 In our solar system, the Earth is probably the
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与美国小学生一起学英文第10册 第2期:蛋白质
Proteins 蛋白质 What is protein? 什么是蛋白质？ It is one of the most important nutrients, animals need. 它是一种动物所需的最重要的营养物质。 People really need a lot of protein. 人们需要大量的蛋白质。 Protein h
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与美国小学生一起学英文第10册 第3期:岩石循环
The Rock Cycles 岩石循环 Many people know what the water cycle is, but how about the rock cycle? 许多人都知道水循环，那岩石循环呢？ Did you know that rocks also have a cycle? 你知道岩石也有循环吗？ The rock cycle expla
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与美国小学生一起学英文第10册 第4期:波浪
Waves 波浪 A wave is the movement of water. 波浪是水的运动。 Why do waves happen? 波浪是怎么产生的呢？ Waves are made when the wind blows over the surface of water. 风吹水面就会产生波浪。 On the beach, you probably watc
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与美国小学生一起学英文第10册 第5期:宇宙大爆炸
The Big Bang 宇宙大爆炸 Do you know about the Big Bang? 你了解宇宙大爆炸吗？ The Big Bang was the beginning of the universe. 宇宙大爆炸是宇宙的开端。 The Big Bang happened at least 13.73 billion years ago. 它至少发生在一
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与美国小学生一起学英文第10册 第6期:虫子
Bugs 虫子 What are bugs? Bugs usually have thick skin. 什么是虫子？它们通常有厚厚的外壳。 There are many kinds of bugs. 虫子有很多种。 Some bugs have body parts. 有些虫子有身体部位。 For example, antibodies have th
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与美国小学生一起学英文第10册 第7期:人造卫星
Satellites 人造卫星 Do you know what a satellite is? 你知道什么是人造卫星吗？ It is an object made by humans. 它是人类制造的产物。 Like the moon, it circles around the Earth. 就像月球一样，它围绕地球旋转。 How
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与美国小学生一起学英文第10册 第8期:卵细胞
Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells
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与美国小学生一起学英文第10册 第9期:太阳黑子
Sunspots 太阳黑子 Is every part of the sun equally hot? 太阳的各个部分都一样热吗？ No, they aren't. Some parts are colder than other parts. 不是的。有些地方比其他地方冷。 How do we know that fact? 我们是如何知道这
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与美国小学生一起学英文第10册 第10期:棱镜
Prisms 棱镜 Why can we see rainbows after rain? 我们雨后为什么能看到彩虹？ We can see rainbows after rain because droplets of moisture in the air work like a big prism. 这是因为空气中的水滴就像一个大棱镜。 So what is
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与美国小学生一起学英文第10册 第11期:螺丝钉
Screws 螺丝钉 Because you see screws every day, every where, you may think they're not important or great. 因为你随时随地都能看到螺丝钉，就可能认为它们不重要或不伟大了。 But screws are very useful, important and grea
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与美国小学生一起学英文第10册 第12期:莱特兄弟
The Wright Brothers 莱特兄弟 Do you know who the Wright Brothers' were? 你知道莱特兄弟是谁吗？ They built first successful airplane in the world. 他们制造了世界第一架成功的飞机。 Orville Wright and Wilbur Wright were br
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与美国小学生一起学英文第10册 第13期:绿洲
Oases 绿洲 Where can we find an oasis? In a desert. 我们在哪儿能找到绿洲？在沙漠里。 An oasis is a fountain or spring in a desert. 绿洲是沙漠中的喷泉。 In desert areas, oases are the most important places. 在沙漠地区，
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与美国小学生一起学英文第10册 第14期:种族
Races 种族 Africans usually have thick, dark skin, curly, black hair and strong legs. 非洲人通常是厚厚的深色皮肤，黑色的卷发和健壮的双腿。 Europeans usually have thin, pale skin, their hair is also very thin, and they have
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与美国小学生一起学英文第10册 第15期:朝圣者
Pilgrims 朝圣者 About 400 years ago, native Indians were the only people in north America. 大约400年前，北美洲只有印第安土著居民。 But now, there are many kinds of people in the United States. 但是现在，美国有很多种族的
