Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease．But there is another factor that can cause your heart problems more immediately: the air you breathe.

    Previous studies have linked high exposure (暴露）to environmental pollution to an increased risk of heart problem, but two analyses(分析) now show that poor air quality can lead to heart attack or stroke (中风）within as little as a few hours after exposure．In one review of the research, scientists found that people exposed to high levels of pollutants (污染物）were up to 5% more likely（可能的） to suffer a heart attack within days of exposure than those with lower exposure．A separate study of stroke patients showed that even air that the U．S．Environmental Protection Agency (EPA) considers to be of “moderate” (良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.

    The authors of both studies stress（强调）that these risks are relatively（相对的）small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure．However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices．So stricter regulation（规章制度）by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.

    For some people, choosing which sports to play throughout high school is hard because they have never really played an organized sport before and aren't sure what they'll enjoy most.{#blank#}1{#/blank#}

    {#blank#}2{#/blank#} If you're great at basketball but would rather play football because you think it's more fun, then give it a go (just make sure it's coot with morn and dad).

    Sports are meant to be fun.{#blank#}3{#/blank#} What's the worst that can happen? If you get cut, you can always try another sport. And sports like track don't typically cut participants from the team. You can still participate even if you're not in the team for the competition.

    Some sports, like basketball or baseball, require every person on the field to be working well together.{#blank#}4{#/blank#}

    Sports like tennis, track and field, swimming, gymnastics, and wrestling are all sports where individual performances are tallied(计分)into team scores.{#blank#}5{#/blank#} However, for the most part it's possible to win a solo event in these sports and still have your team lose or vice-versa(反之亦然).

    No one knows you better than you do. Maybe you enjoy the spotlight. Maybe you get annoyed by the way teammates act. Luckily, there are many individualized sports to choose from.

A．Many people are attracted to team sports.

B．Besides swimming, try fishing, sailing, skiing, and surfing.

C．Of course there are exceptions, like relays in track and swimming.

D．For others it's tough because their friends don't like to play the same sports.

E．No matter what your problem is, you have to make the decision that is best for you.

F．If there is a sport you really enjoy but you aren't sure if you can make the team, try out anyway.

G．Sure, certain people perform much better than others, but superstars don't necessarily make a good team!

    Ways to Create Calm in Your Daily Life

    Most of us need some space for calm in our lives. A few simple minutes can create much needed moments of calm.{#blank#}1{#/blank#} You can use these skills to create calm in your busy schedule.

Go walking. Walking is perfect and you can do it well anywhere. Simply walking and taking in the view is stress reducing. {#blank#}2{#/blank#} It makes room for new ideas to take root. Appreciate nature. When we think of nature we think of getting out into the open air, and that's great if you can. {#blank#}3{#/blank#} Actually , nature is everywhere. Find a park or a small patch (小块地) of great green, or just stick your head out of the window! You have many ways to appreciate nature.

    Listen to music. Many people listen to music to calm themselves down. Music actually lifts us out of ourselves. Discover what music works for you. {#blank#}4{#/blank#}.

    Do some activities. Certain activities like yoga and tai chi need quiet focus. {#blank#}5{#/blank#} They are good for the body, mind and spirit. Classes are a good place to begin, but once you learn the skills, you can practice anywhere: home, school or even on the road.

    Try out some of these ways and you'll soon be practicing “moments of calm”.

A. But what if you are in the city?

B. Notice the animals around you.

C. They are perfect for active calming.

D. Music is a way to express the way that they are feeling.

E. It's a time to get stressful thoughts out of your head.

F. With enjoyable music even work can be “music to your ears”.

G. You don't have to find a mountain to sit on, or empty your mind of all thoughts for hours.

    Everyone makes mistakes.{#blank#}1{#/blank#}. Making a mistake at work, however, can be more serious. It may cause problems for your employer and even affect the company's bottom line Evil consequences will finally come down to you. Simply correcting your mistake and moving on may not be an option. When you make a mistake at work your career may depend on what you do next.

    Admit your mistake.

    Tell your boss about your mistake immediately. The only exception is if you make an insignificant error that will not affect anyone. Otherwise, don't try to hide your mistake.{#blank#}2{#/blank#}.

    Present your boss with a plan to fix your mistake.

    When you go to your boss to admit your mistake, you must have a plan for correcting it. Present your plan clearly. Tell your boss how long it will take to carry out your plan and if there are any costs involved.

    Don't blame anyone else for your mistake.

    {#blank#}3{#/blank#}. Encourage those who may share responsibility to follow your lead in admitting to your boss.

    {#blank#}4{#/blank#}.

    There's a big difference between admitting your mistake and beating yourself up about it. Take responsibility but don't blame yourself for making it, especially in public.

    Correct your mistake on your own time.

    If you have to spend extra hours at work to correct your mistake, don't expect to be paid for that time.{#blank#}5{#/blank#}.

A. Apologize for your mistake but don't beat yourself up

B. Usually you can correct your error or just forget about it and move on

C. You can use your lunch hour or come into work early

D. Pointing fingers at others won't help you if you make a mistake

E. Strengthen your friendship with your boss

F. You'll feel ashamed if your colleague takes the responsibility for you

G. You will look terrible if someone else discovers it

Extreme athletes have been using wingsuits (翼装) to fly for many years. However, the pull of gravity makes it impossible to speed up or fly higher. To push past the limitations, Peter Salzmann teamed up with German car maker BMW. The result is an electrified wingsuit, which allows flyers to rise to higher altitudes at the speed of up to 186 miles per hour!

The 33-year-old professional wingsuit pilot first thought of creating the design in 2017, "At the time, I was developing suits for skydiving with a friend," he explains. "One evening after a day of testing, we threw out lots of ideas about how we could improve performance. One of them was a supporting motor-and it's an idea I just couldn't shake off. I found the idea of being able to jump from my local mountain wearing the wingsuit and land in my garden exciting."

To help with the process, Salzmann reached out to the experts at BMW's Designworks Studio. It took the team three years and multiple test jumps to perfect the design. The result is an updated version of wingsuit with two 5-inch propellers (螺旋桨), Powered by a battery, the propellers can be controlled using an on/off switch and even stopped mid-flight using the emergency button, if the flyer encounters an airplane or a flock of birds.

On November 6, 2020, Salzmann, wearing his hi-tech suit, leaped from a helicopter from an altitude of 10,000 feet to soar around the mountain peaks. The expert pilot fired up the electric motors and rocketed forward, gliding above four mountain peaks. The task completed, the pilot opened his parachute (降落伞) and gently landed.

It is unclear if Salzmann and BMW plan to make the electrified wingsuits available to the general public. But, one can always hope!