题型：语法填空（语篇） 题类：常考题 难易度：普通
初中英语新目标九年级Unit 6 When was it invented?单元检测题（含完整音频）
In the 13th century, the famous Italian traveler, Marco Polo, traveled to China. During his stay in China, he discovered the Chinese used paper money. In western countries, people didn't use paper money 15th century. , people in China began to use paper money in the 7th century. A Chinese man called Cai Lun paper about 2 000 years ago. He put these pieces of paper together and made them into a book.
We use a lot of paper every day. If we keep on so much paper, there will be no paper. So how can we save paper? We can use sides of every piece of paper. We can choose drinks in bottles of those in paper packets(小包). We can use handkerchiefs(手帕) and not paper ones. When we go shopping we can use fewer paper bags. the shop assistant gives you a paper bag, we can save it and reuse it later.
has the duty to help to save paper. We should do it now, before it is too late.
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