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.

3 . I’m sure many of you are familiar with the New Year’s resolution (决心) — “get _______”. After a Christmas of staying _______,   watching television and eating far too much chocolate, I decided enough was enough. January was going to be _______．January was going to be the start of the new, healthy me — less chocolate, more _______, an all­round healthier lifestyle. But how was I going to do this? As I browsed the Internet looking for _______, I realised just how little I knew about ways to get fit. In terms of exercise, I had always _______ you either played a team sport like football or went to the gym. And with the arrival of January snow, playing football outside didn’t seem like the best option, and as I have a deep­rooted _______ of falling off running machines, the gym wasn’t going to work out either. Plus I’ve never quite understood the concept of _______ to run inside when you could run outside for free!

_______, I knew that I needed to research my options further.The first thing I found was the world of YouTube exercise videos. There are videos for ________ about everything. The good thing about YouTube videos is that they are free, they are flexible (you can do them whenever you want)and you don’t have to ________your nice warm house to do them. But unless you do them with a friend it’s difficult to motivate yourself to keep going, and without an instructor there with you it’s sometimes hard to know if you’re doing the move ________．

I then researched local fitness classes and found my small town to be absolutely swimming with ________! I quickly signed up to the overall sports club, had a look at the weekly timetable and ________ to try them all out. So far I have tried out most of them.My ________ ones are by far the dance­based ones that take place to music, because it makes exercise so much more fun!

1.

A．rich

B．fit

C．busy

D．ready

2.

A．alone

B．abroad

C．indoors

D．outside

3.

A．hard

B．similar

C．relaxing

D．different

4.

A．exercise

B．food

C．fun

D．work

5.

A．impression

B．preparation

C．inspiration

D．permission

6.

A．allowed

B．admitted

C．assumed

D．promised

7.

A．surprise

B．anger

C．sadness

D．fear

8.

A．paying

B．planning

C．practicing

D．playing

9.

A．Therefore

B．However

C．Besides

D．Otherwise

10.

A．only

B．also

C．just

D．still

11.

A．clean

B．leave

C．build

D．buy

12.

A．smartly

B．quickly

C．correctly

D．beautifully

13.

A．opportunity

B．danger

C．pressure

D．patience

14.

A．agreed

B．decided

C．believed

D．advised

15.

A．regular

B．creative

C．ordinary

D．favourite

4 . Is “plogging” the most fitness trend yet? They brought us hygge, lagom and fika, but now a new Scandinavian trend is coming, and it couldn’t be more fitness.

Hailing from Sweden, “plogging” is a fitness craze that sees participants pick up plastic litter while jogging — adding a virtuous, environmentally driven element to the sport.

Plogging appears to have started around 2016, but is now going global, due to increasing awareness and fear over plastic levels in the ocean.

The appeal of plogging is its simplicity, and the feeling of getting fit while supporting a good cause. By adding regular squats and carrying weight to jogging, we can assume the health benefits are increased.

Running and good causes have always gone hand in hand — just think of all the fundraising marathon runners do. But there couldn’t be a more on-trend way of keeping fit than plogging.

“Anything that’s getting people out in nature and connecting positively with their environment is a good thing,” says Lizzie Carr, an environmentalist who helped set up Plastic Patrol, a nationwide campaign to rid our inland waterways of plastic pollution. “There’s been a real shift in the public mindset around plastics, helped by things like Blue Planet high lighting how catastrophic the crisis is,” she says. “We need to keep momentum high and the pressure up, and empower people through initiatives like plogging and Plastic Patrol.”

The Plastic Patrol app allows users to map plastic anywhere in the world by collecting discarded items, photographing them and uploading to the app, giving us a better knowledge of what sorts of plastic and which brands are being thrown out. “I’d urge all ploggers to get involved,” adds Carr. As we can see, plogging has become a new fashion in 2018. However, plogging isn’t the first fitness trend to combine running with a good cause.

1. What does the underlined word “discarded” mean?

A．Useless.	B．Abandoned.
C．Exposed.	D．Distinct.

2. Carr helped set up Plastic Patrol, a nationwide campaign, in order to ________.

A．raise public awareness of pollution

B．shift the public mindset around plastics

C．connect positively with their environment

D．make our inland waterways free of plastic pollution

3. What is the passage mainly about?

A．Plogging is the best way to keep fit.

B．Plogging is an environmentally friendly way of fitness.

C．Running with good causes can make a great difference.

D．The Plastic Patrol app is an effective way to help you run.

4. What will the author continue to write?

A．Other new fashions in 2018.

B．The first healthy trends in sports.

C．Other fitness ways of running with a good cause.

D．The first healthy running trend with a good cause.

5 . 阅读下面短文，根据其内容写一篇60词左右的内容概要。

All parents know exercise is important for children: It can lower heart risks, control weight,and help kids do better in school. Plus, outdoor activities at an early age can go a long way toward helping children form healthy habits for life. In other words, exercise is needed for healthy development. But don’t expect kids to understand about those things. Some kids just aren’t into exercise, but that shouldn’t mean they have to be addicted to the TV. So parents could do something to help inactive son or daughter fall in love with physical activity.

If parents sit in front of the TV every night, a bag of chips in hand, kids aren’t likely to respect restrictions (限制) you set on their screen time either. So check your own viewing behavior, and serve as a role model by putting physical activity into your everyday life. When you can, walk instead of driving. Regularly participate in activities that you enjoy and let your kids see — and hear about — how much you enjoy them. In this way, they may “do as the Romans do”. Make sure that children’s fitness is included in the family schedule in the same way that school, work, shopping, and family gatherings find their way onto the calendar. You and your children are more likely to stick to an exercise plan if you incorporate it into your life on a routine basis. And your children will begin to expect and accept that Sunday morning usually means a hike ride, and a couple of nights after dinner the family takes a light walk through the neighborhood.

Children who aren’t naturally good at physical activities may be self-conscious about their lack of physical skills and even fear public failure. These kids need all the support and encouragement from parents. Negative comments don’t work and will only serve to make your child feel bad. Remember, acknowledge the effort — choosing to be active or trying to improve a skill — rather than the outcome.

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6 . 语法填空

As the experts say, swimming is an excellent way to work your entire body. An hour of swimming     1     (burn) almost as many calories as running. There are a host of benefits you may gain from swimming     2     (regular).

One of    3     biggest benefits of swimming is that it truly works well from head to toe. It can not only increase your heart rate without     4     (stress) your body, but also build up your muscles and strength. Besides, swimming makes your heart and lung strong.     5     (research) say that it may even reduce your risk of death.     6     (compare) with inactive people, swimmers have about half the risk of death. Some other studies have shown that swimming may help lower blood pressure and control blood sugar.

The number of persons     7     experience some level of insomnia (失眠症) is increasing, so this is excellent news — the researchers conclude that swimming is a potentially powerful way     8     (relieve) stress quickly and promote deeper sleep.

As with any workout, there are certain risks associated with swimming. If you     9     (injure) or have certain medical conditions, be sure to check with your doctor before swimming.     10     general, it’s a good idea to check with your doctor whenever you start a new exercise program.

7 . 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.

8 . 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。

Exercise is one of the most important     1    (part) of keeping your body at a healthy weight. We also know that staying fit and healthy is very vital. Exercise can help prevent weight gain. If you can’t afford to pay the gym     2    visit every day, don’t worry—just become active throughout the day.  

When you exercise     3    (regular),   you will have better chances of     4    (improve)your mood(心情). It can also increase your confidence. Besides, it will better your appearance,     5    means your body will be in good shape. Regular exercise is also good     6    physical fitness and good health. Apart from weight control, exercise can also delay your aging process.

    7    you don’t exercise, your muscles will become very weak. Also, your heart and lungs might not     8    (function) as well and you are more likely to get injured. Inactivity is as much of a health risk as smoking.  

Make sure that an exercise plan     9     (make), so you can know when and what you should do. However, don’t over-exercise yourself because doing too much exercise on a daily basis will have     10    (harm) results.

9 . 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。

Diet and way of life are often a problem for teenagers. However, if you eat the right food and exercise     1    (regular), you can feel better, look better and have more energy. So healthy eating along     2    regular exercise is probably the only way to become fit.

As a teenager it is important     3     (give) your body the energy it needs. For a healthy diet, you should eat mostly rice, bread, vegetables and fruit. You also need to drink a lot of water.     4     (drink) enough water will improve your skin and give you healthy hair.  

Exercise is something     5    can help to make you look good, feel good and be healthy. Teenagers should spend at least 30 minutes exercising, five times a week. Walking and riding your bike count and     6    do school sports. When you exercise, your body produces    7     (chemical) that make you feel peaceful and     8     (relax) and increase your ability to concentrate when you study. A good amount of sleep every night     9     (be) also important for your health. Teenagers need eight to ten hours of sleep each night.  

If you follow the suggestions above, you will look and feel much     10     (good) in no time at all!