{{B}}
The Science of Sport{{/B}}
1 At the 2004
Olympic Games in Athens, the Chinese athlete Liu Xiang equaled the world record
for the 110 metres hurdles (跨栏) when he ran the race in 12.91 seconds. This
record time had been set in 1993 by British sprinter (短跑运动员) Colin Jackson and 9
years went by before another athlete was able to run as fast.
2
Record-breaking in all track events is slowing down and we appear to be
moving much closer to the limits of human performance. Nevertheless, every four
years, records which were previously thought to be unbeatable are broken. So
what’s behind this never-ending improvement in performance And how long can we
keep breaking records Is there a limit to human performance or will athletes
continue to gain seconds
3 Most experts agree that it isn’t the
athletes’ bodies which have cha
[单项选择]Everybody was {{U}}glad{{/U}} to see Mary back.
A. sorry
B. sad
C. angry
D. happy
[单项选择]What is your {{U}}goal{{/U}} in life
A. plan
B. aim
C. arrangement
D. idea