题目内容：

Professional athletes in most sports start to slow down after the age of 35. Some retire (退役). Jamaican Olympic runner Usain Bolt has talked about retiring, for example. He is only 30 years old. But on Thursday, Serena Williams earned a spot in the Australian Open finals. She will face her older sister, Venus, who won her semifinal (半决赛) match a day earlier. It is the first time that the Williams sisters will play in a Grand Slam final since 2009. Venus is 36. Serena is 35. One of them will win the championship (冠军) at last.

One older champion will play in the men’s final, too. Roger Federer qualified for the final by defeating Stan Wawrinka. Federer, like Serena Williams, is 35 years old It will be one of the sport’s oldest finals in a long time.

Ken Rosewall of Australia is the oldest winner of a Grand Slam. He was 37 when he won the Australian Open in 1972.

Serena Williams is already the oldest winner of a women’s Grand Slam match. She won Wimbledon last year at the age of 34.

Many people are impressed that three of the finalists are 35 or older. All of the players have recently had injuries (受伤). Federer missed six months due to back and knee injuries.

He told the crowd that he did not think he would be able to make it back to a Grand Slam final.

The Williams sisters have had difficulties, too. Earlier this month, Venus won a match in New Zealand but withdrew (退出) from the final after hurting her arm. She also learned in 2011 she had the immune system disorder. The disorder kept her from practicing and staying in good physical condition for a number of years.

Serena took time off to recover from knee and shoulder injuries after losing in the semifinals of the U. S. Open last September. It is the ninth time that the sisters will face each other in a major final. Serena has defeated her sister six of those times. If she wins, Serena will beat Steffi Graff’s record for the most Grand Slam titles ever in women’s tennis.

1.Who will win the championship in the Grand Slam final this time according to Paragraph 1?

A. Usain Bolt.

B. Stan Wawrinka.

C. One of the Williams sisters.

D. Steffi Graff.

2.What do the final players have in common?

A. Their sports skills are falling.

B. They all have physical problems.

C. They are all considering retiring.

D. Their old ages influence their retiring.

3.What do you know about Serena from the last paragraph?

A. She will set a record if she wins this time.

B. She was beaten by her sister in most cases.

C. She needs time to recover from her injuries.

D. Her knee and shoulder injuries made her lose to her sister.