1、智力类(1)Take an any long piece of paper. Now glue(粘) the ends of the paper together. You have made a ring.Take a second long piece of paper. Twist(扭转) the paper once and glue the ends together. Now you have made a Mobys band(带子). For people studying maths, this band is uncommon.This strange band was f
2、irst made in the 1800s by a German named August Mobys. Mr. Mobys studied maths. He wanted to find a way to show how this band works with maths. Believe it or not, this band has only one surface. You can find this out for yourself.If you draw a line on the surface of the paper before you twist and gl
3、ue it, the line is only on one side of the paper. The paper has two surfaces. However, if you draw a line after you make the Mobys band, you can follow the line around all sides of the paper. In other words, the Mobys band must have only one surface.It is also very interesting to see what happens wh
4、en you cut the band. If you cut the Mobys band in half once down the line you drew, you do not get two Mobys bands. Instead, after you cut the band, it turns into one large twisted ring. Then, if you cut this ring in half along the middle of the band again, you get two connected Mobys bands.Try it!1
5、. What is a Mobys band?A. A long piece of paper. B. A paper rings for people to wear.C. A metal ring for music. D. An interesting twisted ring.2. Why did August Mobys make this ring?A. To help study a maths problem.B. To show its the same as others.C. To show the only surface of any band.D. To find
6、out how many sides it has.3. How can you change the two surfaces of a long piece of paper into one surface? A. Glue the ends of the long piece of paper.B. Cut the two surfaces of the paper into one.C. Draw a line in the middle of the paper.D. Twist the paper once and glue the two ends.4. What do you
7、 get if you cut the Mobys band along the middle?A. A long piece of paper.B. Two long pieces of paper.C. Two Mobys Bands.D. One large twisted ring.5. Which of the following is NOT true? A. You can use any long piece of paper to make a Mobys band.B. Any long piece of paper has two surfaces.C. The Moby
8、s band was first made about two hundred years ago.D. You have to draw a line in the middle of the long piece of paper before making a Mobys band. 【答案与解析】这篇文章介绍了一种非常有趣、蕴涵着无穷奥妙的Modys带子。1. D。第2段的第2句告诉我们：Twist the paper，我们可以推断出它是An twist Ring, 即答案D(旋转的环)。2. A。由第2段的第3句我们可以找到这道题的答案He wanted to find a way
9、to show how this band works with maths，所以A是正确的。3. D。可以将Two surfaces of along piece of page into one surface有 Modys band。而怎样做成Modys band 呢？第2段的第2句Twist the paper告诉了我们选答案D。4. D。根据第5段的第2句If you cut the Modys你可以得到一个很大的旋转环。The line you drew是画在整个Modys Band上面的，就得到D这个答案。而迷惑性较大的Two Modys Bands则需要cut this ring again。5. D。由第4段的第1句If you draw a line on the surface of the paper before you twist and glue it, the line is only on one side of the paper，我们得知a line是on the surface of the paper。也就是说在整个Modys Band上，而不是in the middle of the long piece of paper，所以答案选D。.精品资料。欢迎使用。高考资源网w。w-w*k&s%5￥u高考资源网w。w-w*k&s%5￥u
