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It is always painful to see something useful being turned into rubbish, and that may be what shared bikes are facing.

One year ago, shared bikes were introduced into major Chinese cities, and they became a new lifestyle, a symbol of fashion. But, now, they are eyesores, and even trouble on the streets.

You can see shared bikes are parked in a mess at bus stops and subway stations. Thus they become roadblocks(路障) on sidewalks for pedestrians(行人). What’s more, I have seen shared bikes with their seats missing, wheels twisted or locks broken many times on the street, as a result of purposeful damage(破坏). In Beijing's Dongcheng district, more than 30 shared bikes were discovered in mid-June underwater in a river.

Why are shared bikes so popular? Maybe users have to deposit money before they use bikes, range from 99 yuan to 299 yuan. As there are more than 100 million users in China, billions of dollars in deposit money may bring huge returns for bike-share operators when they use it to invest(投资) elsewhere.

No one knows how long bike-share companies can last. History shows that no company can go farther without a perfect management. After all, only when the tide goes out do we discover who has been swimming naked.

1.What are shared bikes facing?

A They are becoming a lifestyle for people.

B They are becoming a symbol of fashion.

C They are turning into rubbish.

D They are turning into trouble on the streets.

解析：选D。细节理解题。由第二段的But, now, they are eyesores, and even trouble on the streets.可知，现在他们是“眼中钉”，甚至街道上的麻烦。故选D。此题容易误选C，第一段提到了It is always painful to see something useful being turned into rubbish, and that may be what the shared bikes are facing.但是这里的rubbish只是一种隐喻，并不是真正意义上的rubbish（垃圾）。

2.What happened to shared bikes according to Paragraph 3?

A Their seats were missing.

B Their wheels were twisted.

C Their locks were broken.

D All of the above.

解析：选D。细节理解题。由第三段What’s more, I have seen shared bikes with their seats missing, wheels twisted or locks broken many times on the street可知，故选D。

3.What does the underlined sentence in the last paragraph mean?

A When the tide goes out, we can see who wears nothing.

B It’s better to swim with nothing.

C Only when a company is managed well can it become better and better.

D You should do business when it’s popular.

解析：选C。句意理解题。根据after all可知，此句与前一句意思相近，故选C。

4.Which is NOT true according to the passage?

A You can deposit 99 yuan before you use shared bikes.

B Some people threw shared bikes into rivers on purpose.

C Shared bikes used to be a symbol of fashion.

D Bike-share companies can last forever.

解析：选D。综合理解题。由最后一段No one knows how long bike-share companies can last.可知没人知道共享单车公司能持续多久，故选D。