1 . The benefits of regular exercise are well documented but there’s a new bonus to add to the ever-growing list. New researchers found that middle-aged women who were physically fit could be nearly 90 percent less likely to develop dementia in later life, and as they did, it came on a decade later than less sporty women.
Lead researcher Dr. Helena Horder, of the University of Gothenburg in Sweden, said : "These findings are exciting because it’s possible that improving people's cardiovascular （心血管的）fitness in middle age could delay or even prevent them from developing dementia. "
For the study, 191 women with an average age of 50 took a bicycle exercise test until they were exhausted to measure their peak （最大值的） cardiovascular capacity. The average peak workload was measured at 103 watts.
A total of 40 women met the criteria for a high fitness level, or 120 watts or higher. A total of 92 women were in the medium fitness category; and 59 women were in the low fitness category, defined as a peak workload of 80 watts or less, or having their exercise tests stopped because of high blood pressure, chest pain or other cardiovascular problems.
These women were then tested for dementia six times over the following four decades. During that time, 44 of the women developed dementia. Five percent of the highly fit women developed dementia, compared to 25 percent of the women with medium fitness and 32 percent of the women with low fitness.
"However, this study does not show cause and effect between cardiovascular fitness and dementia, it only shows an association. More research is needed to see if improved fitness could have a positive effect on the risk of dementia and also to look at when during a lifetime a high fitness level is most important. " She also admitted that a relatively small number of women were studied, all of whom were form Sweden, so the results might not be applicable to other groups.
1. What is on the ever-growing list mentioned in the first paragraph?| A．Positive effects of doing exercises. |
| B．Exercises suitable for the middle-aged. |
| C．Experimental studies on diseases. |
| D．Advantages of sporty woman over man |
| A．To predict their maximum heart rate. |
| B．To assess their cardiovascular capacity |
| C．To change their habits of working out |
| D．To detect their potential health problems |
| A．It aimed to find a cure for dementia. |
| B．Data collection was a lengthy process. |
| C．Some participants withdrew from it. |
| D．The results were far from satisfactory. |
| A．More Women Are Exercising to Prevent Dementia |
| B．Middle-Aged Women Need to Do More Exercise |
| C．Fit Women Are Less Likely to Develop Dementia |
| D．Biking Improves Women's Cardiovascular Fitness |
1.运动会前，老师同学制定计划，准备必备物品，运动员练习；
2
两天运动会期间，大家公平比赛，同学们热情欢呼；3.运动会使班级团结，同学相互了解，让同学们对今后校园生活更有希望。
3 . U. S. Open Championships
The US Open has been in existence for almost 140 years. The first tournament was held in 1881 at the Newport Casino. It was called the US National Singles Championship. Entry was limited to only those clubs which were members of the United States National Lawn Tennis Association, and the competitors were all male, competing in both single and doubles. Richard Sears won the men’s championship and he went on to win the next six men’s singles championships.
The Wimbledon
In 1875, the All England Croquet Club was troubled financially due to declining membership. A new sport called lawn tennis was gaining fast in popularity and taking away the members. Two years later, a new roller was needed for maintaining its lawns so the club proposed to hold a tournament to raise money. Twenty-two players entered that first Wimbledon tournament which was won by Spencer Gore in straight sets over W. C. Marshall. Two hundred spectators each paid a shilling to watch the final game, enabling the club to buy the needed roller plus some extra cash.
The French Open
The very first French Championship was held way back in 1891, and the tournament has since grown into one of the four tennis Grand Slam tournaments we know today. The first competition was a one-day national championship which was won by a British. The competition was poorly attended by world class players. It took 24 years before it became fully international and an accepted tennis grand slam event. After the First World War, French tennis was achieving stature（重要性）. Suzanne Lenglen was the predominant（卓越的）French player, winning the championships six times between 1920 and 1926.
The Australian Open
The very first tennis tournament ever played in Australia was held in January 1880, on the courts of the Melbourne Cricket Club. In 1905, the Australian Open was established as the Australasian Tennis Championship and was played at the Warehouseman’s Cricket Ground in Melbourne. It became the Australian Championship in 1927 and the Australian Open in 1969. Women’s events were added in 1922.
1. What do we know about the first U. S. Open?| A．It was sponsored and organized by a tennis club. |
| B．Only men were allowed to play in the game. |
| C．Richard Sears won six men’s championships. |
| D．It has remained the same through all these years. |
| A．raise some fund for a lawn roller |
| B．attract more people to play tennis |
| C．celebrate the renaming of the club |
| D．make the game more enjoyable |
| A．the tournament has been played in the same place all these years |
| B．twenty-two players played in the first tournament |
| C．few good tennis players took part in the first French Championship |
| D．the players played in singles and doubles in the tournament |
| A．they were all born in the same year |
| B．they have all experienced financial difficulties |
| C．they all had only male players at the beginning |
| D．they all have had a history of 130 years or more |
| A．how the four international tennis tournaments came into being |
| B．how long it took for women to play in the tennis tournaments |
| C．what the international tennis tournaments brought to the world |
| D．why the tennis tournaments are held in these four countries |
