2

　　(beat)the clock. People of all ages and sizes can compete in triathlons. But much like other sports events, a lot of professional

　　3

　　(compete)rule the triathlon world. In addition, many triathlon

　　4

　　(hold) to benefit charity, much like marathons.

　　The modern triathlon appeared in California in

　　5

　　1970s. It usually begins with the swimming.

　　6

　　(follow) by cycling, and finally running. A triathlon tests the endurance(忍耐力)and speed of an athlete, as well as his or her ability to keep energy and focus

　　7

　　the race as a whole. A triathlon competes against a clock, rather than against other athletes. A variation of the triathlon is a relay triathlon.

　　8

　　a different athlete completes each stage.

　　The swimming stage takes place in a lake or the open ocean. As soon as athletes come out from the water, they change into cycling at the

　　9

　　(fast) speed to save time. After cycling, the athletes change shoes to run. The course is considered complete once the athletes

　　10

　　(cross) the finish line.

　　VII．(云南省玉溪市第一中学2016届高三上学期第一次月考)

　　A

　　Sam Allred suffers from a rare and incurable kidney (肾脏) disease. One day, when his sister was playing a song repeatedly, Sam sang along. His sister thought it was funny so she recorded it and posted the video online. The video — and Sam — became a hit. Only 8 years old at the time, he couldn’t have expected the response. 

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