Waste sorting（垃圾分类） is a big matter worldwide． In order to sort the rubbish properly and protect the environment， people in different countries are using different methods to sort their waste．

UK  A UK company invented a "smart bin" to help with waste sorting． People just need to drop their waste into the bin（垃圾箱）． A camera and sensors（感应器） in the bin can tell what type of rubbish it is and correctly sort it． The bin also compresses（压缩） the waste so it takes up less space．

South Korea     South Korea is using a method called "Pay For Your Waste" to encourage its people to reduce food waste． When throwing away rubbish， people have to separate their food waste from their other rubbish and put it in a bin． The smart bin then weighs the food． People have to pay for their food waste by scanning（扫描） a barcode（条形码） on the bin． If they throw away more rubbish， they will pay more．

Japan    Japan is leading the world in waste sorting． They sort waste so carefully that even plastic bottles and their caps go into different bins． Different types of paper products have their own bins．

China    China is improving its waste sorting efforts． Shanghai has worked with Alipay to create a "green account（账户）"service for its residents（居民）． The city is asking all of its residents to sort their waste into four groups： wet， recyclable， harmful and dry．

Title（题目）：（1）
Countries	Methods
UK	"A smart bin" （2） 　 　by a UK company to help with waste sorting． The bin can also compress the waste so it will take up less space．
South Korea	When people throw away food rubbish， they have to pay for it by scanning a barcode on the bin． The more waste they throw away，（3） 　 　they will pay．
（4）	They sort waste so carefully that they even put plastic bottles and their caps into different bins．
China	China is making an effort to improve waste sorting． The government of Shanghai is asking all of its residents to sort their waste into four groups：（5） 　 　．