A city without cars would be very strange，right？But Venice is such a city．

Venice is in the northeast of Italy．It wasn't built on land，like Beijing or Shanghai，but on more than 110islands．Seawater is everywhere around the city．

Even so，travel isn't difficult．The waterways have always been the best way to get around．There are 117waterways and more than 400bridges that can guide you where you want to go．People in Venice move from place to place by boat．

Water makes the city special，but it is also a big problem．Sometimes tourists will have such strange experiences．One moment they walk across the Rialto Bridge，and there's nothing special．But when they come back to the bridge an hour later，it's underwater and everyone is wearing rain shoes．

Once，people used too much underground water．This made the city get lower little by little．Now the city has gone down by 23centimeters．Another problem is the rising seawater．The temperature has risen over the years．This has made the ice of the Arctic Ocean （北冰洋） melt（ 融化）．Every year，high waters hit the city in autumn and winter．When a lot of water comes，more than half of the city is underwater．

Scientists are trying different ways to stop the city from getting even lower．The Italian government has asked some of Italy's biggest companies to build the MOST project，which was planned to be build under the seawater to stop the rising water．Anyway，this project is helping solve the problem．

53．Which is the best way to travel in Venice？　　

A．The waterways．

B．Taxis and cars．

C.400bridges          

D．Boats and rain shoes．

54．What doesn't cause Venice to get lower and lower？　　

A．The ice of the Arctic Ocean melt．

B．Seawater is everywhere around the city．

C．People used too much underground water

D．The temperature has become higher over the years．

55．What can we infer from the last passage？　　

A．Venice is sure to stop getting lower．

B．High waters won't hit Venice any more．

C．Scientists can solve the problems easily   

D．Some possible ways help to solve the problem．

56．What's the best title of this passage？　　

A．The Places of Interest of Venice          

B．The History of Venice．

C．The Specials and Problems of Venice      

D．The MOST Project of Venice．

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