问题 单项选择题

夏季,在我国南方的一些农村地区,人们白天经常“晒水”(如图),以解决晚上洗澡的热水问题。

“晒水”时,履盖在桶口的薄膜的主要作用是()

A.增强太阳辐射

B.增强地面辐射

C.增强大气辐射

D.增强大气逆辐射

答案

参考答案:D

解析:

题文“晒水”时,履盖在桶口的薄膜在白天太阳辐射最强时,强烈吸收太阳辐射。当太阳辐射变弱时,薄膜把吸收的热量以你辐射的方式又还给水桶,提高了水的而温度,D正确。

考点:大气逆辐射的应用。

问答题

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.

 

What is the meaning of the underlined part in Paragraph 4? (No more than 5 words)

单项选择题