A. Perhaps because it seems intuitively true, the notion persists that running, especially when done long-term and over long distances, is bad for the joints. Indeed, it would be hard to think otherwise when with each foot strike, a runner’s knee withstands a force equal to eight times his or her body weight—for a 150-1b. person, that’s about 1200 1b. of impact, step after step.
B. The common wisdom is that regular running or vigorous sport-playing during a person’s youth subjects the joints to so much wear and tear that it increases his or her risk of developing osteoarthritis (骨关节炎) later in life. Research has suggested that may be at least partly true: in a study of about 5000 women published in 1999, researchers found that women who actively participated in heavy physical sports in their teenage years or weight-bearing activities in middle age had a
[听力原文]
M: Did you have your friend type your term paper
W: My sister did it.
Could I have your attention please Thank you.
As I told you this morning, this afternoon is our shopping afternoon. If you have a look at the back page of your tour programme, you’ll see a little map of the city centre, with the names of some of the shops marked. As you won’t have too much time, I’m just going to explain to you what they sell.
We’re now in the Friendship Shopping Centre. On your right is Larp’s, a very good place for shoes and boots, rather than gloves, bags, clothes or others. Opposite that is Li Ning, a good place for sports goods, not cheap, but really pretty. Next door to Li Ning is a place for books. They have got books on almost every subject anyone has ever written about, airplanes to animals, but Chinese only--so none of your English books I’m afraid. If you walk along, there are shops which sell cameras, radios, and so on, which you won’t buy, I’m afraid, if you are tired or would like to ha
A. Bags.
B. Shoes.
C. Clothes.
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