题干

下列关于鲫鱼在水中生活的说法,正确的是(   )

A:鲫鱼靠鳍的摆动进行游泳

B:鲫鱼通过尾部和躯干部的摆动以及鳍的协调作用游泳

C:鲫鱼在水中靠体表黏滑的鳞片进行呼吸

D:鲫鱼的身体分为头部和躯干部两部分,流线型的身体可以减少水中游泳时的阻力

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答案(点此获取答案解析)

B

同类题4

阅读短文,并按照题目要求用英语回答问题。

        I'm a 34-year-old man, married, lived in a nice house, and have a successful career as an educational consultant. But my life was not always so great. I had a learning disability from an early age. I went to a special school where I got plenty of extra help. Still, I suffered the rest of my school days in public schools.

       My life improved remarkably when I discovered art. The art world gave me a chance to express myself without words. I went to a workshop and gradually got good at making things with clay(黏土). Here I learned my first important lesson: disabled as I was in language. I could still be smart and well express myself with clay. And my confidence came along.

      I got my next lesson from rock climbing. It was a fun thing but I was scared from the start. I soon noticed it wasn’t a talent thing; it was practice. So I did it more. After about five years of climbing, I found myself in Yosemite Valley on a big wall. I learned that if you fall in love with something and do it all the time, you will get better at it.

       Later I decided to apply my previous experience to learning how to read and write. Every day I practiced reading and writing, which I used to avoid as much as possible. After two hard years, I was literate.

       Having gone through the long process with art, rock climbing, and reading and writing, now I've got to a point in my life where I know I am smart enough to dive into an area that is totally unknown, hard, but interesting.