1 . Race walking shares many fitness benefits with running, research shows, while most likely contributing to fewer injuries. It does, however, have its own problem.

Race walkers are conditioned athletes. The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon. But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact (接触) with the ground at all times. It’s this strange form that makes race walking such an attractive activity, however, says Jaclyn Norberg, an assistant professor of exercise science at Salem State University in Salem, Mass.

Like running, race walking is physically demanding, she says, According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories(卡路里) per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,000 or more calories per hour.

However, race walking does not pound the body as much as running does, Dr. Norberg says. According to her research, runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.

As a result, she says, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers. But the sport’s strange form does place considerable stress on the ankles and hips, so people with a history of such injuries might want to be cautious in adopting the sport. In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique, she says. It takes some practice.

1. Why are race walkers conditioned athletes?

A．They must run long distances.

B．They are qualified for the marathon.

C．They have to follow special rules.

D．They are good at swinging their legs.

2. What advantage does race walking have over running?

A．It’s more popular at the Olympics.

B．It’s less challenging physically.

C．It’s more effective in body building.

D．It’s less likely to cause knee injuries.

3. What is Dr. Norberg’s suggestion for someone trying race walking?

A．Getting experts’ opinions.

B．Having a medical checkup.

C．Hiring an experienced coach.

D．Doing regular exercises.

4. Which word best describes the author’s attitude to race walking?

A．Skeptical.	B．Objective.
C．Tolerant.	D．Conservative.

2 . Physical education, or PE, isn’t required for all high school students. In some schools, it isn’t offered for some different reasons. But should high school students have physical education? The answer is certainly “yes”.

Today many people don’t do sports. But as is known to all. doing sports is very important for an adult. Teaching teens the importance of a healthy lifestyle and making fitness plans now can help teens put exercise in the first place as an adult.

High school isn’t that easy. Many students are under a lot of stress. Stress can be harmful to a student’s studies and life. Doing sports can help them deal with stress better, helping them live a happier life at school.

The American Heart Association says that 10 million kids and teens suffer from obesity (肥胖). Teens should get 60 minutes of physical activity per day to control their weight and to help their bones get stronger. The increase in activities that don’t get teens to move around, such as computer games, means many teens don’t get their required exercise. PE classes act as a public health measure (措施) to encourage physical activities and help teens have healthy weights.

Not doing sports increases teens’ hazard of developing many diseases. An active lifestyle offers a good way of protection from these health problems. As much as 75 percent of health-care spending goes toward treating medical conditions that can be prevented by lifestyle changes, according to the American College of Sports Medicine.

According to the President’s Council on Fitness, Sports and Nutrition (PCFSN), students who performed five hours of physical activities each week improved their academic (学业的) performance. Students from programs with no physical activity, who used the extra time for classroom study, did not perform better on tests than those who gave up some study time in support of physical education.

1. According to Paragraph 2, what does physical education in high school mean?

A．Making teens attach importance to ęxercise later.

B．Removing the stress faced by teens at school.

C．Getting teens to encourage adults to exercise.

D．Helping teens learn to make good plans

2. What does the underlined word “hazard” in Paragraph 5 mean?

A．Happiness.

B．Risk.

C．Safety.

D．Sadness.

3. According to the PCFSN, doing sport          .

A．means making students choose between sports and studies

B．helps students make good use of all their time

C．means students adjust to their studies better

D．helps students do better in their studies

4. What is the text mainly about?

A．Why high school students should receive physical education.

B．Why some schools consider physical education important.

C．How schools can help students love doing sports.

D．How high school students can live a better life.

3 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.

1. What did scientists from German universities recently discover?

A．Working out is a highly effective way to treat depression.

B．The runner’s high could be caused by endocannabinoids.

C．Endorphins may contribute to one’s high spirits after running.

D．The level of endorphins and endocannabinoids could affect one’s mood.

2. Why did the scientists give mice drugs in their experiment?

A．To find what reduces the runner’s high symptoms.

B．To see the specific symptoms of the runner’s high.

C．To identify what is responsible for the runner’s high.

D．To test what influences the level of endocannabinoids released.

3. What does the underlined word “notion” mean?

A．Effect.

B．Goal.

C．Opinion.

D．Question

4. What can we know about regular workouts according to the UK’s National Health Service?

A．They can help ease depression symptoms.

B．They are the best way to treat depression.

C．They only work for those with serious depression.

D．They can help people completely recover from depression.

4 . When I was in my fourth year of teaching，I was also（and am still）a high school track and field coach（田径教练）. One year，I had a student，John，who entered my class when he was a junior. John changed to our school from Greece，and seemed to be interested in sports，so I encouraged him to join our track team. I explained to him that even though he had never taken part in it before，I did believe that he could do well in any event，and that I would be willing to coach him in whichever ones interested him. He accepted the offer，and began to work hard at every practice.

About a month later，I had found out from other sources that John was a first-class tennis player，winning various junior awards in his home country. I went to him asking，“John，I really appreciate that you came out for the track team，but why didn’t you play tennis instead？It seems that would interest you a lot more，since you’re so good at it.”John answered，“Well，I like tennis，but you told me that you believed in me，and that you thought I could do well in track，so I wanted to try it for that reason.”

From then on，I often remember my student’s reply. I told it to a friend and she suggested I write it down to share somewhere with more teachers. No matter how critical（挑剔的）students can be of themselves，I’ve found that a simple“I trust that you can do it！”can go a long way！

1. According to Paragraph 1，what did the author seem to think more about？

A．John’s PE marks.

B．John’s self-confidence.

C．John’s interest in sports.

D．John’s state of health.

2. Why did John take part in the track team？

A．He had been an excellent runner.

B．He was encouraged by his teacher.

C．He liked running more than tennis.

D．He had no tennis coach to train him.

3. What’s the purpose of this passage？

A．To build a close teacher-student relationship.

B．To introduce a new way of sports training.

C．To explain the value of sports.

D．To show the importance of encouragement.

4. Who is the passage mainly written for？

A．Teachers.	B．Parents.
C．Students.	D．Players.

5 . When it comes to making healthy lifestyle changes, which should come first-changing your diet or becoming more physically active?

Previous studies suggested that providing people with too much information about nutrition and physical activity at once tends (趋向) to be discouraging. That has led to the popularity of advising people to make changes gradually, and set smaller goals.

So the scientists divided 200 inactive participants who were 45 or older into four groups. One group was instructed in making diet and fitness changes at the same time; the second group was taught about diet changes first, and then fitness changes four months later; the third group changed their exercise habits first and made changes in their eating habits four months later; and the final, control group was not instructed in either diet or fitness changes but in how to manage their stress.

The researchers followed the groups for a full year. Compared to the control group, the three intervention (干预) groups made healthy changes in their diet. Those who changed their fitness habits first significantly increased the amount of exercise they received daily compared to the other groups after four months. However, at the end of the year, the group that changed both diet and exercise at the same time was the only one that met the nationally recommended targets for both exercise and nutrition levels, while those who worked on improving their nutrition first were unable to meet the recommended levels of fitness after a year. The researchers suspect that changes to diet are easier to make than changes to physical activity.

The findings show, however, that pairing diet and exercise changes may help to overcome some of the barriers people face in adding more physical activity into their lives. If folks change diet and exercise orderly, the scientists say, they may end up placing more importance on the first set of behavior changes and feel less pressured to address the second set.

1. How is Paragraph 3 developed?

A．By giving examples.	B．By making comparisons.
C．By analyzing causes.	D．By making classifications.

2. Which group was the most physically active after four months?

A．The first group.	B．The second group.
C．The third group.	D．The control group.

3. What might the scientists approve of?

A．Changing eating habits first may be reasonable.

B．Diet and exercise changes should be made orderly.

C．Diet and exercise changes are equally hard to make.

D．Diet and exercise should be processed at the same time.

4. Which of the following is probably the title of the passage?

A．Changing your habits for better health

B．Ways to lead a healthy and balanced life

C．Making healthy lifestyle changes really counts

D．Timing matters in making diet and exercise changes

6 . Nature soothes(抚慰)our stressed-out souls. We know that nature is the best prescription, and new research suggests we can gain benefits while visiting parks.

    1    The study published in the International Journal of Environmental Health Research found that spending 20 minutes in a city park can make you happier, regardless of whether you use that time to exercise or not.

"In general,we found park visitors reported an improvement in emotional well-being(幸福感)after the park visit.”the study's lead author and University of Alabama at Birmingham professor Hon K. Yuen said in a statement.“    2    ”Instead, we found time spent in the park is related to improved emotional well-being.”

For the study, 94 adults visited three city parks in Mountain Brook, Alabama, completing a questionnaire about their subjective well-being before and after their visit.     3     A visit of between 20 and 25 minutes showed the best results, with a roughly 64% increase in the participants' self-reported well-being, even if they didn't move a great deal in the park.     4    

The study group was truly small. as the study's co-author and another UAB professor, Gavin Jenkins, acknowledges.     5    The challenge facing cities is that there is increasing evidence about the value of city parks but we continue to see the decrease of these spaces.

A．Something was used to track their physical activity.

B．You usually visit a small green space in your neighborhood.

C．However, its findings pointed out the importance of city parks.

D．If you want to feel happier, you just need to exercise for 20 minutes in a park.

E．The best part is that you needn't visit a national park or go far out of your way.

F．This means people can benefit from visiting a nearby park, regardless of physical ability.

G．But we didn't find levels of physical activity are linked to improved emotional well-being.

7 . Along with soccer, basketball is a global sport. As you read this. young people somewhere in the world are happily passing, dribbling(运球) and shooting. It’s enormous fun and a joyful way to spend time with others.

Basketball is a game for everyone. Unlike golf or tennis. it doesn't require great wealth or a lot of space to play. After all, not many people have a golf course-sized backyard. and tennis equipment is expensive. Basketball, by contrast, just needs a wall with a hoop and a ball.

So after its invention by Canadian-American physical educator James Naismith in 1891, the sport took off within US citizens, who quickly became attracted to the game because it suited their circumstances. Today, 127 years later, basketball remains one of the most popular sports in the US, and the National Basketball Association (NBA)has an increasing appeal for fans around the world.

The success of basketball as global phenomenon is undoubtedly related to the way African-Americans play the game.” The basketball court reflected some of the major cultural shifts in America, such as from forbidding African-Americans to play basketball to allowing them to play in the NBA, "the LIVESTRONG website noted.

From the 1950s onwards, segregation rules, which had prohibited African-Americans from playing basketball in NBA games, were no longer used in the US. In 1950, when Earl Lloyd started to play for the Washington Capitols, things began to change. Since then, most of the greats of the game have been African-Americans, like Michael Jordan, Magic Johnson, Kobe Bryant and LeBron James.

It's not difficult to see that there's a strong link between political liberation and basketball. Something of this is expressed in a quote from the US author John Edgar Wideman. He makes a connection between basketball and hope:" When it's' played the way it's supposed to be played. basketball happens in the air; flying, floating, raised above the floor, letting the oppressed(受压制的) people of this earth imagine themselves in their dreams.”

1. What advantage does basketball have over golf or tennis, according to the author?

A．It can be played everywhere.

B．It doesn't cost much.

C．It doesn't require too much skill.

D．It interests almost everyone.

2. What can we learn about basketball from Paragraph 3?

A．The sport was created by a PE teacher.

B．The sport was not popular with people at first.

C．Its rules have been changed a lot to suit new circumstances.

D．The NBA. with a history of 127 Years. attracts people worldwide

3. The main purpose of Paragraph 5 is to             .

A．explain the origin and rules of NBA games in the 1950s

B．prove the popularity of basketball among African-Americans

C．stress the success African-Americans in basketball

D．show how racial integration took place in basketball

4. What do John Edgar Wideman's words mean?

A．Basketball is sometimes a useful tool for politicians.

B．American people usually have a basketball dream.

C．Basketball stands for the freedom and hopes of people.

D．Political oppression is a serious problem in the US.

8 . Daily physical activity is an important part of a healthy lifestyle. For this reason, many architects and designers are working to create buildings that encourage people to make exercise a part of their ordinary routine. The movement to promote healthy activity through architecture is called active design. It began in 1998 as part of a university public health program, and it has since gained popularity in cities around the world. Active design uses a number of techniques to encourage the occupants of a building to be more active.

One of the most important strategies of active design is inspiring people to make walking part of their routine. A particularly successful tool for promoting walking is the skip-stop elevator. These elevators stop only on every second or third floor, leaving riders to take the stairs in order to reach their destination. Another strategy of active design is to make stairs more pleasant and inviting. Instead of creating dark stairwells that are located in isolated parts of buildings, active design uses well-lit and centrally placed stairs to encourage more foot traffic. Skip-stop elevators and appealing stair design are both effective tools of active design because they offer incentive and opportunity for exercise. In fact, researchers studying a building that employs both skip-stop elevators and more attractive stair design said that 70 percent of building occupants reported using the stairs every day.

Active design encourages physical activity using not only the interior features of a building, but the relationship between a building and its surroundings as well. A building that employs active design may integrate outdoor space in order to make the environment more engaging and promote physical activity. Some elements that architects use to incorporate the exterior with the interior are glass walls, interior gardens or park spaces, and courtyards with open ceilings, all of which de-emphasize the boundaries between inside and outside. These elements make the building more physically and mentally invigorating. Similarly, by increasing the number of entrances and exits to a building, architects can help keep a building’s users interested in their surroundings by providing a variety of routes for them to use. If people continue to be stimulated by new sights or experiences, they are less likely to choose the quickest and easiest path to their destination and may instead choose a more physically challenging route.

1. What does the underlined word “incentive” in paragraph 2 mean?

A．requirement	B．encouragement
C．technique	D．assistance

2. Why does the author discuss dark stairwells in paragraph 2?

A．To demonstrate the differences between elevator and stairwell design.

B．To describe one advantage of using skip-stop elevators in buildings.

C．To make a point about why people don’t use the stairs often.

D．To argue that skip-stop elevators may lead to design failures.

3. Which of the following is NOT a way that architects weaken the boundary between indoor and outdoor spaces?

A．Creating more routes for entering and exiting.

B．Building gardens inside the building.

C．Creating spaces with open ceilings.

D．Using see-through materials.

4. How does paragraph 2 relate to paragraph 3 in the passage?

A．Para 2 describes an early model of a design discussed in para 3.

B．Para 3 argues about the effectiveness of the technique from para 2.

C．Para 3 introduces a different strategy than the one discussed in para 2.

D．Para 2 explains a technique, and para 3 gives examples of how it is used.

9 . You may think that sailing is a difficult sport, but it is really not hard to learn it. You do not need to be strong. But you need to be quick. And you need to understand a few basic rules about the wind.
First, you must ask yourself, “Where is the wind coming from? Is it coming from ahead or behind or from the side?” You must think about this all the time on the boat. The wind direction tells you what to do with the sail.
Let’s start with the wind blowing from the behind. This means the wind and the boat are going in the same direction. Then you must always keep the sail outside the boat. It should be at a 90° angle (角度) to the boat. Then it will catch the wind best.
If the wind is blowing from the side, it is blowing across the boat. In this case, you must keep the sail half way outside the boat. It should be at a 45° angle to the boat. It needs to be out far enough to catch the wind, but it shouldn’t flap (摆动). It shouldn’t look like on a flagpole. If it is flapping, it is probably out too far, and the boat will slow down.
Sailing into the wind is not possible. If you try, the sail will flap and the boat will stop. You may want to go in that direction. It is possible, but you can’t go in a straight line. You must go first in one direction and then in another. This is called tacking. When you are tacking, you must always keep the sail inside the boat.
1. What should you consider first while sailing?

A．Sailors’ strength.	B．Wave levels.
C．Wind directions.	D．Size of sails.

2. What does the word “It” underlined in Paragraph 4 refer to?

A．The boat.

B．The wind.

C．The sail.

D．The angle.

3. What do you have to do when sailing against the wind?

A．Move in a straight line.	B．Allow the sail to flap.
C．Lower the sail.	D．Tack the boat.

4. Where can you probably find the text?

A．In a popular magazine.	B．In a tourist guidebook.
C．In a physics textbook.	D．In an official report.

10 . Have you promised that your are going to get healthier? Maybe you want to lose weight, get stronger and have more energy. Maybe you are under the doctor’s orders to eat right and take exercise more.    1    But with so many choices, it can be hard to get started. So here are healthy tips that you can follow.

Eat right. Healthy eating is harder than before. Now many supermarkets or restaurants are packed with unhealthy choices that cause weight gain and weaken energy. Over time, making poor food choices can cause illness.     2    . Eat natural and organic foods as often as possible. Cut out the junk food.

Keep healthy.     3    . So take exercise at once. Once you get started, you will be more likely to stick to it. Reduce stress. In the US, 77% of people often experience physical stress.     4    You can manage stress by taking exercise, getting enough rest and cleaning bad relationships from your life.

    5    . Sure, some people are naturally happier than others. But there are things you can consciously do to be happier. And guess what they are all free. So if you want to be happier, there are a few things to do, for example, express thanks, help others ,or how to meditate.

A．Sleep well.

B．Choose happiness.

C．Well, those all sound great.

D．But you don’t have to be concerned about it

E．That is not a group you want to be a part of.

F．So tell someone you love how you feel about them.

G．People who often take exercise are generally happier and healthier than people who don’t.