When your pen is broken，the battery（电池）in your toy runs out，or you have some leftover（吃剩的）food，what do you do with these things？You will probably throw them all into one bin． But actually，all kinds of rubbish need to be sorted（分类）separately．

Rubbish sorting is a big issue（议题）worldwide． 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 residents（居民）．Account holders get points by sorting their rubbish correctly．

Through the Alipay app，they can exchange the points for milk，phone cards and other products． The city is asking all of its residents to sort their rubbish into four groups： wet，recyclable，harmful and dry． Wet waste is also known as household waste． Paper，metal and glass are recyclable waste． Medicine and batteries are harmful waste． Finally，any waste that's not wet，recyclable or harmful will go in the"dry waste" bin． Many other Chinese cities are also doing this． Shenzhen has been sorting its rubbish into the same four groups since 2012．Students there must study waste﹣sorting guidebooks．

If you don't sort your rubbish，it will go to a landfill（垃圾填埋场）and be buried together． These landfills can take up large areas of ground． Some rubbish can pollute the soil and groundwater and it can also do harm to the environment around us． China is improving its waste﹣sorting efforts． There is still a long way to go．

（1）How should we deal with all kinds of rubbish？ 　 　

A．	We can throw them all into one bin．
B．	We can sort them separately．
C．	We can throw them away freely．
D．	We can reuse them all．

（2）How is Shanghai encouraging people to sort their rubbish？ 　 　

A．	By creating a "green account" service with the help of Alipay．
B．	By paying people to sort their rubbish correctly．
C．	By allowing people to exchange rubbish with each other．
D．	By providing its residents with guidebooks to help them．

（3）Which of the following things belong to harmful waste？ 　 　

A．	Leftover food and batteries．
B．	Metal and medicine．
C．	Batteries and medicine．
D．	Paper and glass．

（4）What is the main idea of the last paragraph？ 　 　

A．	Where we can bury our waste．
B．	Why we should sort our rubbish properly．
C．	What kinds of waste can pollute the environment．
D．	How some kinds of waste can be reused and recycled．

（5）What do we know about rubbish sorting in China？ 　 　

A．	Shenzhen has been sorting its rubbish for 10 years．
B．	All the students have to take waste﹣sorting classes at school．
C．	As for rubbish sorting， we Chinese still have much work to do．
D．	Burying is the only way of dealing with rubbish．

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