五、跨学科数学 阅读理解。
主题群:生活与学习 子主题:学习生活 语篇类型:说明文 难度:★★★
You may feel that Maths is difficult and boring. Is it possible that you've been looking at Maths in the wrong way? Li Xing, a Maths professor at Ningxia University, thinks Maths can be beautiful and fun. I completely agree with what he said.
Numbers are beautiful.
There is Maths hidden in beautiful human bodies. Measure(测量) the length from your head to your belly button(肚脐) and from your belly button to your feet. The ratio(比例) of these two numbers is always around 0.618. This is called the "golden ratio". You can see it in many places, like in nature, in music, and in paintings.
In Chinese poems, we can also see the beauty of numbers. Li Bai wrote "My skiff(小船) has left ten thousand mountains far away." and "A thousand miles in one day.". All these numbers show how fast Li Bai travelled and how happy he felt.
Curves(曲线) are beautiful.
"Sine curves" are beautiful. They go towards the two opposite directions on and on without ever ending. When you look at them, you may feel like standing by the sea and watching the waves slowly moving. The "Tangent curve" is like a waterfall, just as Li Bai wrote, "Its torrent dashes(猛冲) down three thousand feet from high."
Formulas(公式) are beautiful.
There are some amazing formulas. In a right-angled triangle(直角三角形), the square of the longest side is equal to the sum of the squares of the other two sides. How amazing! Just as Chinese-American mathematician Chern Shiing-shen said, "Maths is fun!"
1. If the ratio of a thing is around 0.618, it
D
.
A. has a golden colour B. only happens in human bodies
C. looks like a human body D. might bring people a sense of beauty
2. Why does the writer mention Li Bai and his poems in the passage?
A. To introduce the topic. B. To support his opinion.
C. To share the beauty of Li Bai's poems. D. To offer advice on learning Maths.
3. What is the passage mainly about?
A. Why Maths is beautiful and fun. B. Why Maths is difficult and boring.
C. How we can learn Maths in a right way. D. How Maths helps us live a better life.
