阅读理解 If you're out for a run, what difference does it make if you're able to tough it out

阅读理解
If you're out for a run, what difference does it make if you're able to tough it out for another 50 seconds? If you're less than a minute from the top of the hill, that extra time can make the difference between having reached your goal and snatching defeat from the jaws of victory.
How do you get those extra seconds of energy? A research team at the Texes Tech University developed a study to measure what effect listening to music would have on exercise tolerance. The researchers based the study on a stress testing. As part of the testing, they noted any changes in heart rate and blood pressure as participants underwent physically stressful exercise.
The tests were done on treadmills (跑步机), which increased in both speed and incline (坡度) through three stages. In the final stage, the treadmills moved at 10 miles per hour at a 14-percent grade. Most of these tests were designed to last up to 40 minutes. The average gym-goers lasted 30 minutes. For this study, they divided 127 participants into two groups. One listened to upbeat(快节奏) music, while the other group had earbuds in but did not listen to music.
The group that listened to music was able to outlast the non-music group by an average of 50.6 seconds. Again, being able to go an extra minute may seem like a no-brainer ,but “after 30 minutes, you feel like you are running up a mountain, so even being able to go 50 seconds longer means a lot," said the study's lead author, Waseem Shami, MD.
The study has confirmed something runners and gym-goers have suspected for years: Listening to music during workout can be beneficial to your endurance. "Our findings reinforce the idea that upbeat music can help you exercise longer and stick with a daily exercise routine," said Shami. When doctors are recommending exercise, they might suggest listening to music, too."
32. Why did Shami’s team conduct the research?
A. To test the effect of music on health. B. To know the cause of failure in sports.
C. To improve runners' exercise tolerance. D. To record the body change of participants
33. What did the researchers than about the Participants in the stress testing?
A. They ran much faster than average runners. B. They created a new record of indoor sports.
C. They could run a little longer with music on. D. They all enjoyed extreme physical challenge
34. What do the underlined words “a no-brainer” mean in paragraph 4?
A. A dull activity. B. A foolish action.
C. A demanding task. D. An easy practice
35. What did Shami suggest us doing in the last paragraph ?
A. Developing a daily exercise routine. B. Listening to music while working out
C. Participating in physical stress testing. D. Taking exercise as doctors recommend.
【答案】32. C    33. C    34. D    35. B
【解析】