A．Because it's hard to recover from the injury.

　　B．Because she didn't recover from her injuries.

　　C．Because she was pleased to have no regrets.

　　D．Because she had to retire from professional tennis.

　　D　[细节理解题。通过文章第一段的"During Sunday's news...make this decision."可知，李娜在退役新闻发布会上忍不住哭是因为很艰难地做出了因伤结束职业网球生涯的决定，故答案为D。]

　　2．How does Martin Hingis feel about Li Na's

　　retirement?

　　A．Proud.　　　　　　　 B．Regretful.

　　C．Pleased. D．Worried.

　　B　[推理判断题。根据第三段辛吉斯的评语"A sad day for Chinese tennis and for the sport in general"可推知，她认为李娜退役是一个让人悲伤的决定，很遗憾，故答案为B。]

　　3．How many years does it take Li Na to win her first Grand Slam singles title after she went professional?

　　A．9. B．5.

　　C．12. D．7.

　　C　[数字计算题。根据第四段前两句"Born in 1982，at the age of 17...to win a Grand Slam(大满贯)singles title."可知，李娜1999年成为职业运动员，到2011年获得法网冠军，花费了12年时间，故答案为C。]

　　4．What is the best title of the passage?

　　A．A Legend Says "Good Bye"

　　B．Li Na's Professional Tennis Career

　　C．The Rise of Tennis in China

　　D．A Super Tennis Star

A　[标题归纳题。本文介绍传奇网球运动员李娜退役，简单回顾了李娜的