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难句剖析

理解诱思

There are several ways to visit the Grand Canyon.Hundreds of thousands of people see the canyon by air each year.They pay a helicopter or airplane pilot to fly them above and around the canyon. About twenty thousand people a year see the Grand Canyon from the Colorado River itself.They ride boats over the rapid,rocky water.These trips last one week or three weeks. Visitors can see the Grand Canyon in another way.A huge glass walkway,called the Skywalk,extends twenty-one metres from the edge of the Grand Canyon.The Skywalk is suspended7 more than one thousand two hundred metres above the bottom of the canyon.It is shaped8 like a giant horseshoe9.Visitors pay twenty-five dollars each to walk beyond the canyon walls,surrounded by the canyon,while standing at the edge of the glass bridge.