Jennifer Heil now lives in Montreal，Canada where she skis nearby.

　　21．Heil didn't compete in the 2007－2008 season because she __B__.

　　A．was injured in training

　　B．intended to become stronger

　　C．had to improve skiing skills

　　D．was forced to lose weight

　　解析：细节理解题。根据第三段"She took the 2007－2008 season off because she wanted to build up her physical strength."可知答案选B项。

　　22．If Heil gives up skiing in the future，__D__.

　　A．Canada may not get any medals in Olympics

　　B．she will compete in swimming

　　C．she will recover from her injuries quickly

　　D．others will have a chance to win the World Cup

　　解析：细节理解题。结合第四段的"fortunately for everyone who wants to win the World Cup"可知，她如果不再滑雪的话，其他人就有获奖的机会了，故选D项。

　　23．By saying "My skis are part of my body now"，Heil means she __C__.

　　A．likes walking on her skis

　　B．will carry her skis everywhere

　　C．loves skiing very much

　　D．couldn't rid her daily life of skis

　　解析：推理判断题。通读全文，尤其是本句后的"She has spent so much time on them and she never feels bored at all！"可知，她钟爱滑雪。

　　24．What's the text mainly about？__A__

　　A．Jennifer Heil's sports career.

　　B．Difficulties Jennifer Heil has in life.

　　C．The 2002 Winter Olympics.

　　D．Jennifer Heil's winning the World Cup.

解析：主旨大意题。文章主要讲述了加拿大女子滑雪运动员Jennifer Heil的运动生涯，因此A项正确。