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每当我看见那些自由自在游来游去的鱼儿,除了羡慕就是好奇:它们是怎么在水里活动自如的?怎样保持平衡的呢?它身上的那些鱼鳍在运动中起什么作用呢?为了解开心中的疑问,一次实验课上,我自告奋勇告诉老师,为了研究鱼是怎样在水里游动的,我想亲自做个实验,通过剪掉不同部位的鱼鳍观察鱼在水中的运动姿态。老师同意了,让我去菜场买8条鲫鱼做实验,这样实验完后可以用来做菜吃,就不会浪费了。实验开始了:我抓出一条鱼,把它的尾鳍剪掉,放进水里后,发现它想拐弯的时候就像喝醉了酒
Whenever I see the fish that swim freely, except envy is curiosity: How do they move freely in the water? How to balance? What role do the fins on the fish play? In order to understand my doubts, in an experimental class, I volunteered to tell the teacher that in order to study how the fish swim in the water, I would like to do an experiment by cutting the fins of different parts to observe the movement of the fish in the water attitude. The teacher agreed, let me go to the farms to buy eight carp experiment, so after the experiment can be used to cook food, it will not be wasted. The experiment started: I grabbed a fish, trimmed its tail, put it into the water and found it to be like a drunken