In the 13th century. Marco Polo the world known Italian travelled saw many wonderful things in China. One of the things he discovered was money made of paper. People in the West did not have such kind of money until the I5th century. However the Chinese began to use it in the 7th century
Paper was invented by a Chinese man called Cai Lun almost 2,000 years ago. But it was not made in Europe until the year I 100. Four hundred years later, a German discovered that he could make the best paper from trees. After that countries rich in forests, such as Canada Sweden. America. Finland became the most important ones in paper making
Paper can be used in many ways. The common uses include newspapers magazines and books. But do you know that paper can be used for keeping warm? In Finland. the farmers wear paper boots to keep their feet warm in the snow. And even houses can be insulated(使绝缘)from heat or cold with paper.
However. we have to understand that paper still comes from trees now. If we keep on wasting so much paper, there will not be any trees left on the earth some day in the near future. Every day people throw away about 2, 800 tons of paper in our city. It takes 17 trees to make one ton of paper. This means that we are cutting down nearly 48.000 trees every day. The fact is that it takes more than 10 years for a tree to grow.
So we must start saving paper right now. We can use both sides of every piece of paper. We can make useful things out of used paper. We can use china cups instead of paper ones. When shopping, we can use fewer paper bags and reuse them if we have some
In short, we should keep a balance (平衡)between using paper and protecting trees, and do it now before it is too late.
1. When did the Chinese begin to use paper money?| A．In the 5th centurn | B．In the 6th century |
| C．In the 7th centurn | D．In the 15th century |
| A．Because it was a large country | B．Because it had lots of forests |
| C．Because it was a very rich country | D．Because the inventor was from Canada |
| A．making beds | B．reducing waste |
| C．making umbrellas | D．keeping warm |
| A．10 | B．17. | C．2,800 | D．48,000 |
| A．how paper boots are made | B．how paper was invented |
| C．how we can save paper | D．how we can make useful things |
相似题推荐
【推荐1】As you read this passage, you probably have in front of you some paper, a pen and at least one pencil. Have you ever wondered how they were first made and where they come from?
The word “paper”comes from the name “papyrus”, a plant. The ancient Egyptians took the soft centre of this plant and added water to make a wet mixture which was then pressed together and hung up to dry. The resulting paper was strong yet flexible and was used as writing material in Greek and Roman. However, it was the Chinese who invented what we now know as paper. The method, in use over 2,000 years ago, also involved pressing and drying wet material to form paper. Many material were used. It was not until the 19th century that paper became easy to make and cheap to buy.
The earliest pens were hollow reeds (空心芦苇) that were put into ink to produce a form writing. By the 6th century BCE, feathers had taken the place of the reeds and feathers continued to be used until the appearance of the metal nib (笔尖). The ballpoint pen was developed in the second half of the 20th century by the Hungarian Biro brothers.
From the time of the Romans, a metal stick, made of lead (铅), was used to write on papyrus. The lead left only a light mark and was later replaced by another soft metal, called graphite (石墨). Unlike lead, graphite produced a much firmer and heavier line. The graphite sticks, however, broke very easily. So an Italian couple invented something a little like our modern pencil.
根据语篇内容，选择最佳选项。
1. What does the underlined word “they” in the first paragraph refer to?
| A．Some paper, a pen and at least one pencil. | B．Pens and pencils. | C．Paper and pens. |
| A．In the 6th century. | B．In the 12thcentury. | C．In the 19th century. |
| A．Feathers→hollow reeds→metal nib→ballpoint pen. |
| B．Hollow reeds→feathers→metal nib→ballpoint pen. |
| C．Metal nib→hollow reeds→feathers→ballpoint pen. |
| A．Because lead is harmful to people. |
| B．Because lead breaks more easily. |
| C．Because graphite makes darker lines. |
| A．The benefit of the pen. |
| B．The history of paper, pens and pencils. |
| C．The inventor of the pencil. |
【推荐2】Rico is a dog and he lives in Germany. His owners trained him from a young age to find his toys. When they say the name of the toy, Rico can find it. In fact, he seems to know the names of 200 toys！
Some researchers（研究者）in Germany wanted to test Rico. At the beginning，they put his toys in a room and then told him to go in the room and find one of the toys. Since nobody was in the room with Rico, he had no help from anyone finding the right toy. The researchers did this test forty times. Rico found the right toy thirty-seven times！
Then the researchers tried something else. They put seven of Rico's toys in the room plus（加） one new toy that Rico had never seen before. Then they told Rico to go into the room and get the new toy. This new toy had a name Rico has never heard before. Rico found the right toy seven out of ten times！
Researchers cannot really say that Rico knows words or language. However, the test seems to show that Rico can think about what he hears as well as a three-year-old child.
From these tests, animal researchers know one thing for sure. Rico gives them a lot to think about.
1. What is Rico good at？| A．Finding things. | B．Catching things. | C．Counting things. | D．Cleaning things. |
| A．when | B．from | C．because | D．though |
| A．To name the toys in the room. | B．To put his toys in the room. |
| C．To plus the new toy into the room. | D．To find the toy in the room. |
| A．Seven. | B．Ten | C．Thirty-seven. | D．Forty |
| A．Drinking too much cola or coffee can cause many harmful effects to your body. Without doubt, you will put on weight because you have taken in a lot of calories. And these drinks can decay (腐蚀) your teeth. Besides, high levels of caffeine may lead to dehydration (脱水). |
| B．When you lower your head to play with an electronic product, the pressure on your neck is greater than usual. If you keep this posture (姿势) for a longtime, your neck and head will ache. And staring at the electronic screen for long is quite harmful to your eyes, especially in the dark. |
| C．Studying till midnight doesn’t help with long-term memory and has a bad influence on your brain’s performance. Lack (缺乏) of sleep can make you inactive in class during the daytime. Slowly, you lose your learning ability and feel more stressed. |
| D．You’ve probably heard that it’s a good idea to avoid eating at least three hours before going to bed. That’s because it takes the stomach at least this long to empty itself. If you eat too much before bedtime, you may experience stomach pain. And remember to clean your teeth before bedtime, or you’ll have tooth decay. |
| E．You should start a day with a good meal, including milk, eggs and fruit. Otherwise (否则), you will feel hungry and have little energy to study or work well. What’s worse, as time passes, you may get some illnesses. And your weight will go up. |
