第二单元 Unit 2 1.声音的秘密 The secret of sound 2.哗啦、喀嚓、叮咚…… Hua La, Cha Cha, Ding Dong 3.我们的周围， Around us, 4.有各种各样的声音。 There are all kinds of sounds. 5.声音是怎样产生的？ How is sound produced? 6.又有什么秘密？ What's the secret? 7.让我们走进奇妙的声音世界。 Let's go into the wonderful world of sound. 第七课 Lesson Seven 1.声音的产生 The production of sound 2.声音是怎么产生的呢？ How does sound come about? 3.各种各样的声音。 All kinds of sounds. 4.我还没起床就听见了喜鹊的叫声。 I heard the magpie before I got up. 5.我听见了汽车的喇叭声。 I heard the horn of the car. 6.小提琴的声音多美妙啊！ How wonderful the violin sounds! 7.生活中，声音无处不在，各种各样的声音构成了奇妙的声音世界。 In life, sound is everywhere. All kinds of sounds constitute a wonderful sound world. 8.我们制造声音。 We make sound. 9.探究声音产生的秘密。 Explore the secret of sound production. 10.我还有办法…… I still have a way 11.调查、研究：生活中人们为控制声音的大小，采用了哪些方法？ Investigation and research: what methods do people use to control the sound size in their life? |
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.
