10．What's the best way to overlook a beautiful city？If you find climbing a mountain tiring，there is another way that is more relaxing：take a Ferris wheel （摩天轮）！
Big O，Japan The Big O stands in Tokyo．At 60meters tall it is quite small．And it takes people only 15minutes to complete a ride．But the amazing part to it is that Tokyo's largest roller coaster（过山车），Thunder Dolphin，passes through the center of the Ferris wheel and can reach speeds of around 130kilometers per hour．It'll be funny to take a look at passengers'faces while enjoying your relaxing Ferris wheel time!
London Eye，England With a height of 443feet（about 135m），the London Eye is the tallest Ferris wheel in Europe．It has enough space for 800people on one turn and each car carries a maximum of 25people．By taking it，visitors can get a 360-degree view of London Tower，Buckingham Palace and Big Ben．One complete turn takes 30minutes．The London Eye is at the center of the New Year's celebrations，as bright，sparkling fireworks rain down from the wheel．
Tianjin Eye，China Tianjin Eye is a 120-meter-tall Ferris wheel built on a bridge that crosses the Haihe River in Tianjin，China．Built in 2007，the Tianjing Eye is known for its upside down Y-shape structure（结构） supporting it on both sides．It is the only Ferris wheel in the world to stand on a bridge．The wheel has 48cars．Each holds eight passengers．Riders can get amazing views of the city and the cars on the highway below them during the 30-minute rotation（旋转）．At night，it lights up in different colors．
High Roller，USA lot goes through your mind when you're 168meters up in the air．It must make it very exciting if the city down below is Las Vegas，which has great night views．Welcome to the world's tallest Ferris wheel，the High Roller．It first opened on March 31，2014．A ride lasts for 30minutes．You can also enjoy videos and music during the ride．
80．B is the tallest of the four Ferris wheels．
A．Tianjing Eye
B．High Roller
C．London Eye
D Big O．
81．How many cars does London Eye have？D
A．eight hundred
B．thirty
C．twenty-five
D．thirty-two
82．Which of the pictures is Tianjing Eye？C
83．If you take the Big O，it takes you aboutA to complete a ride．
A．a quarter
B．twenty-five minutes
C．half an hour
D．ten minutes．
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