题目内容：

 

When your pen is broken, or you have some food that you haven't eaten up, what do you do with these things? You will probably throw them into one bin. But actually, all of these pieces of waste need to be sorted (分类) separately so that a part of them can be recycled. As we know, metal and bottles are reusable things. We can separate them from litter and reuse them.

In recent years, some Chinese cities have been working hard on it. Shanghai has worked with Alipay to create a “green account (账户) "service for its people. Users get points by correctly sorting their rubbish and can exchange the points for milk, phones and other products through Alipay. The city is asking all of its people to sort rubbish into four groups: wet, recyclable, harmful and dry.

Wet waste is things you don't want but that pigs can eat. Paper, metal and other things that can be reused are recyclable waste.

Harmful waste includes things like medicine and batteries. Finally, other waste will go in the "dry waste" bin.

Many other cities uses this method to sort their rubbish. For example, Shenzhen has been sorting its rubbish since 2012. China is improving its waste-sorting work though it costs a lot. There is still a long way to go. But it's never too late to learn how to sort your rubbish properly and protect the environment.

The sorting of1.in China
Waste-sorting work in Shanghai	Shanghai has worked with Alipay to 2. a "green account" service for its people. Users get points by 3. sorting their rubbish. Users can 4. the points for products through Alipay.
Four5. of rubbish	Wet waste is things you don't want but that pigs can eat. Things that can be 6. are recyclable waste. Harmful waste includes things 7. medicine and batteries. Other waste will go in the "8. waste" bin.
Conclusions	This method is9. to sort rubbish in many cities. It's never too 10.to learn how to sort your trash properly and protect the environment.