题型：阅读选择 题类：常考题 难易度：普通
江苏省扬州市宝应县东北教研片2018—2019学年七年级下学期英语3月联考试卷
In the 13th century, the Italian traveler, Marco Polo, traveled a long way to China, During his stay in China, he saw many wonderful things. One of the things he discovered was that the Chinese used paper money. In western countries, people did not use paper money until the 15th century. However, people in China began to use paper money in the 7th century.
A Chinese man called Cai Lun invented paper almost 2000 years ago. He made it from wood. He took the wood from trees and made it into paper. He then put these pieces of paper together and made them into a book.
Now paper still comes from trees. We use a lot of paper every day! If we keep on wasting so much paper, there will not be any trees on the earth. If there are no trees, there will be no paper. Every day , people throw away about 2800 tons (吨) of paper in our city . It takes 17 trees to make one ton of paper. This means that we are cutting nearly 48000 trees every day. Since it takes more than 10 years for a tree to grow, we must start using less paper now. If we don't, we will not have enough time to grow more trees to take the place of those we use for paper.
So how can we save(节约) paper? We can use both sides of every piece of paper, especially when we are making notes .We can choose drinks in bottles instead(代替) of those in paper packets. We can also use cotton handkerchiefs (手帕) and not paper ones . When we go shopping, we can use fewer paper bags. If the shop assistant does give us a paper bag, we can save it and reuse it later.
Everyone can help to save paper. If we all think carefully, we can help protect trees. But we should do it now, before it is too late.
I'm sure you all know how important recycling is. Recycling is when you take old things and turn them into new things. It sounds like magic. But it's actually very scientific.
| Material | The first thing you have to do is to collect items that can be recycled. Only certain materials can be recycled. These include things made out of paper, metal, glass and plastic. |
| Daily things | Can you think of everyday items made of these materials? Soda cans are good example. They are made out of metal. Magazines and newspaper are made out of paper. So are cereal boxes. Some bottles of juice are made out of glass. Bags and yogurt containers are made out of plastic. There are many things that can be recycled. |
| Loop | These things are usually stamped with the recycling loop. It has 3 arrows that go in a triangular (三角形) circle. This shows that cycle (循环) continues. Items are thrown away but continue their lives as something else. |
| Process | Let's go back to the process of recycling. ①The items are put in a recycling bin. ②A truck carries the items to a recycling plant. ③The materials are separated and squashed (被压扁成) into square cubes. ④Companies buy and turn them into new products. |
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