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

2. Why did the researchers ask the women to do bicycle exercise?

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

3. What do we know about Dr Horder's study?

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.

4. Which of the following is the best title for the text?

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

2 . NATIONAL PARK SERVICE

Last year, the National Park Service (NPS) marked its 100th anniversary with a year-long celebration.

    1    . It recognized the preservation and protection of the 417 park service units. Now that those festivities have wrapped up, it’s time to look toward what the next 100 years might look like for the nation’s parks. Here’s a look at some of the major issues facing the nation s parks now and over the next century.

    2    . For example, at Shenandoah National Park, park officials note that rising temperatures in streams have already impacted native fish. They are also concerned that climate change will lead to more droughts, floods and wildfires. At Golden Gate National Recreation Area in California, park officials are predicting heat waves, coastal flooding and habitat destruction in response to climate change.

Visitors behave badly. Today, visitors still aim to make their mark on the natural and cultural resources.

    3    . But the NPS now has its own branch of law enforcement (执法) officials who are tasked with protecting those resources for and often from park visitors.

There is maintenance backlog (积压).    4    . But the donations may drop sharply and raise the possibility of handing the parks over to private corporations. With budget shortfalls and maintenance at all-time highs, it’s likely that these sorts of partnerships will only become more likely in the future.

Despite some major concerns, the future of the NPS looks promising. With a renewed level of interest, and the help of some corporate donations, the parks will be protected for the next century.    5    .

A．Climate change will affect all parks

B．Yellowstone National Park deserves a visit

C．The NPS took a look back at the last century

D．The maintenance burden will be removed soon

E．And they may look different in the next 100 years

F．Those are protected by the National Park Service as they did years ago

G．At the moment, donations from private corporations are limited to signs and certain exhibits

3 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The Xi’an City Wall is the most complete city wall that has survived China’s long history. It     1     (build) originally to protect the city     2     the Tang dynasty and has now been completely restored (修复). It is possible       3     (walk) or bike the entire 14 kilometers.

We accessed the wall through the South Gate. The wall is 12 meters high and from here you can see streams of people moving inside and outside the City Wall.

After     4     (spend) some time looking at all the defensive equipment at the wall, we decided it was time for some action and what     5     (good) than to ride on a piece of history!

We     6     (hire) our bikes from the rental place at the South Gate. My bike was old and shaky     7     did the job. It took us about 3 hours to go all     8     way around the Xi’an City Wall. Supposedly you can do it in two hours, but we stopped at the different gates and     9     (watchtower) to take pictures or just to watch the local people going about their     10     (day) routines.

4 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

A MOTHER’S DAY SURPRISE

The twins were filled with excitement as they thought of the surprise they were planning for Mother’s Day. How pleased and proud Mother would be when they brought her breakfast in bed. They planned to make French toast and chicken porridge. They had watched their mother in the kitchen. There was nothing to it. Jenna and Jeff knew exactly what to do.

The big day came at last. The alarm rang at 6 a.m. The pair went down the stairs quietly to the kitchen. They decided to boil the porridge first. They put some rice into a pot of water and left it to boil while they made the French toast. Jeff broke two eggs into a plate and added in some milk. Jenna found the bread and put two slices into the egg mixture. Next, Jeff turned on the second stove burner to heat up the frying pan. Everything was going smoothly until Jeff started frying the bread. The pan was too hot and the bread turned black within seconds. Jenna threw the burnt piece into the   sink and put in the other slice of bread. This time, she turned down the fire so it cooked nicely.

Then Jeff noticed steam shooting out of the pot and the lid starting to shake. The next minute, the porridge boiled over and put out the fire. Jenna panicked. Thankfully, Jeff stayed calm and turned off the gas quickly. But the stove was a mess now. Jenna told Jeff to clean it up so they could continue to cook the rest of the porridge. But Jeff’s hand touched the hot burner and he gave a cry of pain. Jenna made him put his hand in cold water. Then she caught the smell of burning. Oh dear! The piece of bread in the pan had turned black as well.

注意：1.续写词数应为150左右。
2.请按如下格式在答题卡的相应位置作答。

As the twins looked around them in disappointment, their father appeared.

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The twins carried the breakfast upstairs and woke their mother up.

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5 . Keeping curious kids from disrupting wildlife

Interacting with the wild, naturally curious kids tend to collect seashells at the beach or keep small wildlife as pets.     1     So how to help kids protect the wild while enjoying spending time outsides? Here are alternatives for some of the most common outdoor behavior no-nos.

Take an interest, not things. Kids show interest in picking flowers, rocks, or shells outdoors. They’re part of wildlife's habitat and play an important role.     2     Let kids explore with a magnifying glass (放大镜)instead of their curious fingers. Let whatever they find outside stay outside.

    3     It seems a fun idea to throw pieces of bread to ducks. Animals have unique dietary needs that are different from humans. Eating human food can make them sick or become dependent on human food. Bears are an example of animals that often have to be killed after developing a taste for human food.

Admire animal afar, not disrupt nearby. The urge to take a photo with a squirrel, bird, or slow-moving turtle can be strong for kids.     4     Instead, remind kids to stay away and show them how to use a camera's zoom button, or just admire with their eyes.

Take well-worn paths, not off-road romps (嬉戏). Kicking piles of leaves, stepping on bushes, and walking through forested areas can unintentionally scare wildlife. If surprised animals defend their homes, everyone could get hurt. Nobody likes having a guest come in and destroy their home and act rudely.    5    

A．Keep snacks away from animals.

B．Share food if animals are hungry.

C．Exposure to them develops kids’ love and curiosity.

D．The same rule applies to visiting wildlife in their homes.

E．Animals rely on plants for hiding; rocks and shells, for homes.

F．Approaching animals disrupts what they do for survival, such as eating.

G．Despite innocent purposes, kids’ curiosity accidentally damages the wild.