蝉发音的秘密英语作文

2022-03-26 其他类英语作文

　　无论在学习、工作或是生活中，大家最不陌生的就是作文了吧，写作文可以锻炼我们的独处习惯，让自己的心静下来，思考自己未来的方向。一篇什么样的作文才能称之为优秀作文呢？以下是小编收集整理的蝉发音的秘密英语作文，欢迎阅读，希望大家能够喜欢。

　　蝉为么会发音，对我来说一直是个谜。为了揭开这个秘密，我常常躲在树下悄悄地观察。我发现蝉鸣时，总是“挺胸”、“翘尾”。

　　Why cicadas can pronounce has always been a mystery to me. In order to uncover the secret, I often hide under the tree and observe it quietly. I found that cicadas always "hold their chests up" and "raise their tails" when they chirp.

　　这是为什么呢？一天，我捉到了一只蝉，进行了观察研究。我摘掉了蝉的.翅膀，把它放在地上，它在地上扑打着小翅膀，叫着；我又折断了它针状式的嘴，可它仍然叫着。蝉究竟靠什么发音呢？经过反复观察，我发现这声音好像是从胸部发出来的。于是，我把它捉起来看，发现它凹部的两侧，各有一片鱼鳞似的硬壳，像钳甲一样，里面有一对透明薄膜。蝉呜时，簿膜地回动，我用手轻轻地一扞这个地方，蝉就叫了。我不停地捏，它就不停地叫。我想：这对簿膜就是它发音器吧！我把簿膜刺破，再怎么捏，它也不叫了。后来妈妈告诉我这是蝉的“响板”，是雄蝉特殊发音器。发音膜的肌肉收缩振动，蝉就会发出声音。雌蝉没有“响板”，所以是哑巴。

　　Why is that? One day, I caught a cicada and made an observation. I took off the wings of the cicada and put it on the ground. It flapped its little wings on the ground and cried. I broke its needle like mouth again, but it still cried. What pronunciation does cicada depend on? After repeated observation, I found that the sound seemed to come from the chest. So I caught it up and saw that on both sides of its concave, there was a hard shell like a fish scale, like a pair of Tongjia, with a pair of transparent films inside. When the cicada whines, it moves in a thin film. I use my hand to gently shake this place, and the cicada calls. I kept pinching, and it kept barking. I think: this pair of film is its pronunciation device! I pricked the film. No matter how I pinched it, it wouldn't scream. Later, my mother told me that this is the "soundboard" of cicadas, a male cicada special pronunciation device. The muscles of the vocal membrane contract and vibrate, and cicadas make sounds. Female cicadas are mute because they don't have a soundboard.

　　这时，我才明白，蝉叫的时候，为什么总爱“挺胸”和“翘尾”了。揭开了蝉发音的秘密，我又一次尝到了动脑筋、学科学的甜头。

　　At this time, I can understand why cicadas always love "open chest" and "cocked tail". The secret of cicada's pronunciation has been revealed, and I have once again tasted the sweetness of using my brain and learning science.

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