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1.find out 2.electrical equipment 3.be supposed to do 4. be proud of 5.add . to . 6. react with 7.put in order 8. partial reaction 9.keep out of 10 in conclusion 11at the bottom of12.think of13.at the top of14 in turn 15 Its ones turn to do 16. used to17 Go ahead!18 in the area of, 19.keep the noise down20.youve got it! 21.2002,00020,0002,000,00020,000,0002,000,000,0001,234,567, 890找出，查明电器应当，理应为.感到骄傲往.加入.和.反应把.按顺序排列部分反映把.关在外面，使.不进入最后，总之在.底部考虑在.顶部依次，轮流该轮到某人做某事了过去常常开始，前进在.领域把音量降低你明白了Two hundred Two thousandTwenty thousandTwo millionTwenty millionTwo thousand million or two billionOne billion, two hundred and thirty-four million, five hundred and sixty-seven thousand, eight hundred andninety22. It is important to know how they react with different substances, for example, water and oxygen.23.The earth is forty-nine times larger than the moon. =The earth is forty-nine times as large as the moon. 24.Its getting brighter and brighter! 25.The closer you are, the more youll see.26.The more books I read, the more information I learn. 27.This room is twice as large as that one.=This room is twice larger than that one.28.It is hard to think of a world without metals. 29.Im becoming more and more interested in physics.30.修饰比较级的副词： a little,a bit a lot rather no any lots (very)muche a bit closer了解他们是如何与不同的物质反应是重要的，例如，水和氧气。地球是月球49倍大。天变的越来越亮。你靠的越近，看的越清。我读的书越多，我学习的越多。这个房间是那个房间的两倍大。很难想象一个没有金属的世界。我对物理越来越感兴趣 靠近一点
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