In recent years， a number of Chinese technological innovations（科技创新）have been making waves around the world． Among them， four stand out． They are known as "four new great inventions" of modern China． They have made our daily lives more convenient．

High﹣speed trains

China created its first high﹣speed railway line in 2008． Since then， the number of passenger trips has grown by over 30percent every year． By 2016， more than 5billion trips had been taken on china's bullet trains （高铁）， according to Xinhua News Agency．

China is currently working on the next﹣generation bullet trains that will have a top speed of 400kilometers per hour． By 2020， one﹣fifth of the country's 150，000﹣km railway network will be used by high﹣speed trains． This network will link more than 80percent of major cities across China， said Xinhua．

Mobile payment

Mobile payment is turning China into a "cashless society" led by the third﹣party payment companies like Alipay． For example， instead of paying by cash， customers now pay for goods simply by typing a short password into Alipay app on their mobile devices．

Users can also pay their bills through Alipay， such as their water and electricity bills． Alipay also supports cross﹣border（跨境的）online and in﹣store payment， which allows users to buy things on international websites and apps．

Shared bikes

Shared bike services started in Western countries． But China has surprised the world with how quickly it has adopted dockless （无桩的） shared bikes．

Unlike traditional bike﹣sharing method， dockless bikes allow users to simply pick up or park a bike on the street through GPS and smartphone apps．

To unlock a bike， you just need to scan a QR code on a shared bike with a smartphone app． After you finish riding， you can park it at available parking areas， lock it and pay for ride through mobile payment services．

Online shopping

With around 751million internet users， China has been the world's largest and fastest﹣growing online shopping market．

Online shopping now accounts for 15.5percent of total retail sales in China， according to Xinhua． Thanks to lower costs and fewer licensing requirements （执照要求）， it's easier for sellers to open an online shop in China than a brick﹣and﹣mortar shop （实体店）．

It also helped to create jobs of rural areas． In 2016， online shopping created more than 20million jobs in rural areas， with over 8.1million running their own online shops， said Xinhua．

（1）What is known as "four new great inventions" of modern China？ 　　

A．	GPS， smartphone app， High﹣speed trains and online shopping．
B．	Mobile payment， shared bikes， online shopping and high﹣speed railway network．
C．	Online shopping， short password， High﹣speed railway network and mobile payment．
D．	High﹣speed trains， mobile payment， shared bikes and online shopping．

（2）According to the passage， which of the following is TRUE？ 　　

A．	China created its first high﹣speed railway line in 2016．
B．	When users pay their water and electricity bills， they only pay them by cash．
C．	By 2020， China's 30，000﹣km railway network will be used by high﹣speed trains．
D．	It easier for sellers to open a brick﹣and﹣mortar shop than an online shop in China．

（3）The underlined phrase "accounts for" means 　　in Chinese．

A．	占……比例
B．	是……原因
C．	给……解释
D．	出……单据

（4）From this passage， the writer mostly wants to tell us that 　　

A．	Nowadays China has become the most developed country in the world．
B．	Nowadays China has made much great progress in both science and technology．
C．	Nowadays Chinna is stronger than any other country in the world．
D．	Nowadays only China can make a great contribution （贡献） to human．

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