2 . Playing sports is a lot of fun. Getting hurt is not.    1    

Wear protective equipment.

The equipment you wear depends on the sport you play. Helmets (头盔) are the most common protective equipment. They protect your head while you’re playing football, baseball, softball, and so on.

Warm up.

    2     Doing some stretches (伸展) can get you prepared to hit the field. By warming up, you get yourself ready to play. Practicing a sport helps keep you safe, too.

Know the rules of the games.

Traffic lights help prevent crashes between many cars that run on the road together. This works because drivers know the rules and follow them—at least most of the time.    3     When players know the rules of the game, fewer injuries happen. For example, you know that in soccer you can’t come from behind, crash into a player’s legs, or steal the ball. It’s legal and safer to go after the ball rather than the player.

    4    

This is a really important one. If you love sports, you may want to get back in the games, even after an injury. But playing when you’re hurt is a bad idea.    5    

Now you know how to prevent sports injuries. If you follow these rules, you can stay safer while you are playing sports.

A．Don’t play when you’re injured.

B．Don’t do too much exercise.

C．It’s the same with sports.

D．It can lead to an even worse injury.

E．It’s not a good idea to just go to the field and start playing.

F．You and the other players know what to expect from each other.

G．Take these steps to prevent injuries so you can stay in the game.

3 . What will the woman do probably?

A．See a doctor.

B．Go swimming.

C．Do some running.

4 . When people think about improving their physical fitness, they often neglect (忽视) balance. Good balance is a necessary part of being physically fit and key to living a long life, according to a research. It’s important for everyone, no matter your age.

Older adults are most affected by poor balance. Falls are the leading cause of injury and death for those 65 and older, with nearly 30% in this age group reporting at least one fall in 2018, according to the US Centers for Disease Control and Prevention. But younger adults frequently fall down, too.

Forty-eight percent of young adults reported falling at least once during one 16-week study. The falls most commonly happened during sports activities, with women in the study reporting more falls and fall-related injuries than men.

Falls within the previous two years were reported by 18% of young adults (ages 20 to 45) in another study published in the journal BMC Public Health. That figure (数据) compared with 21% of middle-aged adults (46 to 65) reporting falls and 35% of those over 65. While falls among young adults were often connected with sports, falls by the middle-aged group were typically related to health problems and physical changes.

Many factors (因素) can affect your balance outside of age, such as vision changes, brain injuries, overweight and a general lack of physical fitness. Even if you have no risk factors, simply neglecting to work regularly on your balance will result in increased instability (不稳定性).

“Our body is conditioned to lose what we don’t regularly use and practice, and balance is no different,” said a researcher.

1. What role does a good balance play in our lives?

A．It helps us live a healthy and long life.

B．It enables us to build a perfect shape.

C．It protects us from getting seriously sick.

D．It has the power to make us look young.

2. How does the author show the research results?

A．By having a discussion.	B．By giving a list of figures.
C．By raising questions.	D．By following the time order.

3. In which situation are young adults likely to fall down?

A．When a health problem comes up.	B．When working regularly.
C．When a physical change appears.	D．When joining in a sport.

4. What can we learn from the last paragraph?

A．We are naturally born with balance.

B．We should manage our body properly.

C．Our body is used to working in its own way.

D．We’ll lose our balance if we don’t practise it often.

7 . 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。

Running a few kilometers each day is good     1     our health. However, new research says running too much could be bad for us. Running long distances     2    (regular) for many years could make our life     3    (short) , not longer. A researcher said too much running can create plague(斑)inside your heart,    4    can lead to heart disease. He wrote that running too much for many years takes away the good things from exercise. He     5    (add) that the risk of heart disease could be     6    same as someone who never exercised.

Researchers said men who ran marathons for 25 years had 62% more plaque in their heart than men who did little     7    no exercise. Another doctor said he felt cheated. He started running marathons in 1967. He used     8    (run) 60 kilometers every week. He said, “I thought I was out there exhausting     9    (me), building an absolutely strong heart.” The doctor advised     10    (exercise) frequently but not to overdo things.

8 . If you think that running marathons will help you live a long and healthy life, new research may come as a shock. According to a recent scientific study, people who do a very strenuous workout are as likely to die as people who do no exercise at all.

Scientists in Denmark have been studying over 1,000 joggers (慢跑者) and non - joggers for 12 years. The death rates from the sample group indicate that people who jog at a proper pace two or three times a week for less than two and a half hours in total are least likely to die. The best speed to jog at was found to be about 5 miles per hour. The research suggests that people who jog more than three times a week or at higher speeds of over 7 mph die at the same rate as non - joggers. The scientists think that this is because strenuous exercise causes structural changes to the heart and arteries(动脉). Over time, this can cause serious effects.

Peter Schnohr, a researcher in Copenhagen, said, “If your goal is to decrease risk of death and improve life expectancy(寿命), jogging a few times a week at a proper pace is a good strategy. Anything more is not just unnecessary, and it may be harmful.”

The implications (暗示) of this are that moderate forms of exercise such as tai chi, yoga and walking may be better for us than “iron man events, triathlons and long - distance running and cycling. According to Jacob Louis Marott, another researcher involved in the study, “You don't actually have to do that much to have a good impact on your health. And perhaps you shouldn’t actually do too much”.

1. Which of the following words can replace “strenuous” in Paragraph 1?

A．regular

B．hard

C．practical

D．limited

2. Why does the author presents the figures (数字) in Paragraph 2 ?

A．To suggest giving up jogging	B．To show risks of doing sports
C．To provide supportive evidence	D．To introduce the research content

3. According to the scientists, why is too much exercise harmful?

A．It may injure the heart and arteries.	B．It can make the body tired out.
C．It will bring much pressure.	D．It consumes too much energy.

4. What can be the best title of the text?

A．No exercise at all is the best choice.	B．More exercise means a healthier life.
C．Marathons runners are least likely to die.	D．Too strenuous exercise is no better than none