1 . 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 . Benefits of Sports

Doing sports is a physical, mental and social adventure. It’s a great way for children to take a break from studies and release extra energy. It also helps them lead fuller and happier lives as regular sports have proven beneficial to overall well-being.

The physical benefits of doing sports are probably the most obvious. Regardless of your fitness level when you start playing sports, you’ll notice an increase in your overall fitness once you’re involved.     1     Basketball players focus on strength training; football players work on speed while track athletes train through longer runs. The training process helps promote physical fitness and performances in competitions.

    2     Playing sports also contributes to mental health, helping to increase confidence and self-worth. A pat on the back, a high five from a teammate, or a handshake after a match really boosts a child’s confidence. Words of praise and encouragement from the coach, parents and other players raise self-worth.     3     So after a game, it’s a better idea to ask “Did you enjoy the game?” rather than “Did you win?”

Children who participate in sports might also benefit from the social aspect, feeling part of a group, building up responsibility and leadership.     4     Teamwork involves both being dependable as a teammate and learning to rely on your teammates to achieve a positive outcome. Teamwork breeds responsibility and challenges you to be responsible for your actions. Being part of a team gives you an opportunity to be a leader.

Discipline is another social advantage. Most organized sports require a strict training and practice schedule. As a student-athlete, you need to balance studies and athletics.     5    

There is no shortage of reasons to find a sport to get involved in. Are you ready to go? Pick one and get moving!

A．It’s not just your body that benefits from sports.

B．Therefore, playing sports is going to make you more fit.

C．But remember, a child’s self-worth should not be distinguished by victory or loss.

D．If you play group sports, you’ll be part of a team that takes direction from a coach.

E．Nearly every sport requires physical activities and the competitive skills.

F．Among these, learning how to function as part of a team is the most important advantage.

G．Only with strict discipline can you be successful both in the classroom and in the sports field.

5 . 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.

6 . All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer. Many people like to watch others play games. They buy tickets or turn on their TVs to watch the games. Often they get very excited when “their” player or team wins.

Some sports are so interesting that people everywhere go in for them. Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy! And think of people in cold countries. Think how many people love to skate or ski in Japan, Norway or Canada. Some sports or games go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. They are about one hundred years old. People are inventing new sports or games all the time. Water－skiing is one of the newest in the family of sports.

People from different countries often become good friends after a game together. Sports help them to understand each other. One learns to fight hard but fight fair, to win without pride and to lose with grace．

1. Why do people all over the world enjoy sports?

A．Because they want to keep healthy.	B．Because they are happy.
C．Because they want to live longer.	D．All the above.

2. Some people get excited when they watch a game because ________．

A．their favorite team wins	B．they win the game
C．they get the good news	D．they can’t help themselves

3. Which of the sports has a long history?

A．Water－skiing.	B．Basketball.
C．Volleyball.	D．Jumping.

4. People from different countries often become friends after a game together because ________．

A．they train their character in the game	B．they understand each other
C．they are friendly to each other	D．they help each other

7 . 假定你是李华，你的英国笔友Tom来信询问你最喜欢的运动项目。请你根据以下提示，通过电子邮件向他介绍你最喜欢的运动。
1. 何时开始喜欢此项运动。
2. 现在练习的情况。
3. 给你带来的益处。
注意：
1. 词数100字左右。
2. 可以适当增加细节，以使行文连贯。
3. 信的开头和结尾已给出，不计入总词数。
Dear Tom,

Nice to receive your e-mail. I’d like to tell you about my favorite sport,

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

8 . Until quarantine (隔离期) ends, we are left picturing what sport we might do: working out at the gym, playing on a competitive sports team, swimming, biking, or rock climbing. However, we don’t often think of martial arts as possible activities; instead, we rule it out because we think it’s dangerous, uncommon, and even, impossible. Martial arts aren’t considered a sport, right?

Well, here’s some good news: you’re wrong! Martial arts aren’t much more common than people think, and you can start learning at any age. Practicing martial arts is a great way to keep in shape, both physically and mentally. They’re much less boring and much less arduous sport than they’re usually described as in movies, so do not worry that they need a lot of effort.

Martial arts generally require you to focus on the position and movement of every one of your legs and arms, sometimes even your breathing too. Think about it: when you leave the gym, your mental state has improved and you are much calmer. This is because you’ve only paid attention to one activity. It is a great way to clear your head. And practicing it can help you learn to stay more focused, which is the greatest advantage of martial arts training.

Martial arts also improve your coordination (协调性), and greatly improve your posture (姿势). I have personally seen students go from slouching (没精打采) to walking tall with their shoulders back in just a couple of months.

There are many styles and countless kinds of martial arts. Whichever one you like better, know that all of them are good choices.

1. What can we know about martial arts from the first two paragraphs?

A．They often have people hurt.	B．They are difficult to practice.
C．People have a wrong view on it.	D．People practice them more often.

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

A．Interesting.

B．Difficult.

C．Friendly.

D．Exciting.

3. What is the biggest benefit of practicing martial arts?

A．Adjusting the breath.	B．Enjoying one’s free time.
C．Correcting the movement.	D．Keeping one’s attention.

4. What does the writer think of martial arts?

A．They are not sports.	B．They attracted many teenagers.
C．They are beneficial and helpful.	D．They were invented to protect others.

9 . 假定你是李华，最近你校英文报在举办“Exercise an Hour Every Day, Healthy Life for a Lifetime”为主题的征文活动。请你根据以下要点用英语写一篇短文。
要点：1. 你对征文主题的理解；
2. 你喜欢的运动项目及活动情况；
3. 该运动给你生活和学习带来的益处。
注意: 1. 词数80个左右；
2. 可以适当增加细节，以使行文连贯；

3. 题目与开头已写好，不计入总词数。

Exercise an Hour Every Day, Healthy Life for a Lifetime

Nowadays, doing sports is becoming more and more popular.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

10 . All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.     1    . They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.

    2     Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!     3    . Think how many lovers to skate or ski in Japan, Norway or Canada.

Some sports or games go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet.    4    . Water-skiing is one of the newest in the family of sports.

People from different countries may not be able to understand each other, but after a game together they often become good friends.     5    . One learns to fight hard but fight fair, to win without pride and to lose with grace.(胜不骄，败不馁)

A．And think of people in cold countries.

B．Sports help to train a person’s character.

C．Not a few people like sports in the world.

D．Many people like to watch others play games.

E．People aren’t inventing new sports or games.

F．Some sports are so interesting that people everywhere take part in them.

G．People are inventing new sports or games all the time.