There are some injuries that are common to all types of extreme sports. The following are some of the important things to do to prevent extreme sports injuries. {#blank#}1{#/blank#} But they can definitely minimize the risk of injuries.

    Warm up.

    {#blank#}2{#/blank#} They include a combination of cardiovascular(心脏血管的)exercises, strength drills and stretching. Cardiovascular exercises increase body temperature, heart rate and blood circulation, which is required for further movement of the body. Strength drills increase the stamina of the body, while stretching warms up the muscles preparing them for sudden forceful movements. {#blank#}3{#/blank#} It also plays an important role in boosting the team spirit for a team sport. A warm-up session should last for at least 20 minutes and it can extend up to half an hour.

    Avoid overworking.

    There are some people who do not exercise their body for the sport on a regular basis and perform a week's task in a day or two. {#blank#}4{#/blank#} They do not realize the effect of overworking during the performance and keep doing it until they feel extremely tired. Apart from the actual sport, one should also avoid overdoing the warm-up exercises before the activity.

    {#blank#}5{#/blank#}

    Just as warming up is essential before any rigorous(充满活力的) physical activity, cooling down the body after playing a rigorous sport is also a significant part of physical conditioning. When you are done with your sports session, you can conclude with some walking, jogging or light running. Slight stretching exercises, focusing on specific muscles, will also be useful for cooling down the body.

A. Cool yourself down.

B. Look for a coach to train you.

C. These people are likely to suffer from extreme sport injuries.

D. However, there are no perfect methods which can assure you 100% safety.

E. Along with physical preparation, warming up prepares you mentally to begin a sport.

F. You should also be careful about your clothing selection for warmth and protection.

G. Warm-up exercises are very important before you begin any sports practice.

    How to Prepare for an Exam

    {#blank#}1{#/blank#} There's no need to be tense (紧张的) or cram (死记硬背). By doing a couple simple things ahead you can ensure that you are confident and ready for anything that comes up on the test.

    {#blank#}2{#/blank#} After you have taken notes from studying all of your material including the book and your notes, use that information to make flash cards. Turn statements into questions

    Quiz yourself. Once everything is written down on flashcards, quiz yourself with the cards. Keep reviewing the questions that you get wrong until you get them right. You can carry flashcards around with you and quiz yourself when you're on the subway or riding in the car.{#blank#}3{#/blank#} Definitely continue to quiz yourself until you get them all right.

    Do practice questions.{#blank#}4{#/blank#} Practice doing the questions in the book that you were assigned for homework. Do extra questions in the back of the book. Re-do questions that you got wrong, and try to figure out why you got them wrong. Do practice questions until you feel more comfortable with subject matter.

    On the day of the exam, set your alarm at least two hours before the test. Scientists believe that a good night's rest is the key to better test scores. An hour and a half before the exam, start running through all the themes and sub-topics in your head. Like always, check your notes if you get stuck. Use your flashcards to help you commit all the tiny details to memory if they're not already memorized.{#blank#}5{#/blank#} If you're given yourself enough time to study, you should feel well prepared and relaxed.

A. Goon a balanced diet.

B. Take exercise and keep it up.

C. Make flash cards.

D. This is especially helpful for subjects such as math.

E. You might quiz yourself for a half hour or so, then take a break

F. Stop studying at least 15 minutes before the exam, but an hour is preferable.

G. Preparing for an exam can be stressful and time-consuming, but it doesn't have to be.

    It's Friday morning, and you're taking another test. Are you ready? Students who do well on tests often have good study skills, but good study skills involve a lot of preparations as well as studying. Here are a few simple strategies（策略）that will help.

    Read ahead. {#blank#}1{#/blank#}. Highlight or make notes of things that you feel are important, and share your thoughts during classroom discussions. Also, by reading ahead, class time can be used more efficiently to discuss questions or topics that need clarification. Clarifying questions in class will free up more time to review and study the new material at home.

    Take good notes. Good notes make great studying tools. Good note taking involves a lot more than copying notes from the board. {#blank#}2{#/blank#}. Pay attention to textbook pages that are relevant to the discussion.

    Make flashcards. Flashcards are great review tools for basic math facts or word definitions. Write the word or question on one side and the definition or answer on the other side. {#blank#}3{#/blank#}. Make one pile for flashcards that were remembered, and make one pile for flashcards not remembered. The more you review the flashcards, the smaller the flashcards pile not remembered should be.

    {#blank#}4{#/blank#}. Get together with a few friends and quiz each other on the material and notes you've collected for the test. Explain or describe in your own words what the material is about, and compare the information you have collected with each other.

    {#blank#}5{#/blank#}. Being prepared for class, participating during class, and reviewing after class are good strategies so that you have the most accurate and best materials to study.

A. Study in a group

B. Review notes daily

C. As you review them, make two piles

D. Doing it helps you better prepare for class

E. There are many things you can do to improve your studying skills

F. You are becoming more familiar with the concepts and topics discussed

G. Make sure to include any relevant information from the classroom discussions

    With the development of science and technology, mobile phones have been an important communication tool in our modern life. {#blank#}1{#/blank#}

    First, {#blank#}2{#/blank#} If we have a mobile phone, it is possible for us to access anyone at anytime and anywhere. We could call our clients and customers for business. And we can send messages, including text and picture messages to our friends for personal affairs.

    Besides, mobile phones have been multi-functional nowadays since its advance development. It could take photos instead of digital cameras. It could be used as a radio or recorder or for playing music. {#blank#}3{#/blank#}

    {#blank#}4{#/blank#} Sometimes we would not like to be available to anybody; sometimes we receive so many rubbish messages.

    In conclusion, {#blank#}5{#/blank#} It is really a great invention, which makes our life more convenient and more colorful.

A. But sometimes mobile phones can also make you in a dilemma.

B. Mobile phones bring us more benefits than disadvantages.

C. Mobile phones really bring convenience to our lives.

D. Mobile phones play an important part in our work.

E. However, some small troubles would visit you after using it for some time.

F. And it also could be a game player.

G. Thanks to it, our life becomes easy and colorful.

    If you're having trouble getting good sleep through the night (turning, waking up more than once, for example), this text will tell you what you can do to ensure a peaceful night's sleep.

    ⒈Get on schedule. Changing your sleeping time by more than an hour can severely disturb your sleep quality. {#blank#}1{#/blank#}For example, if you normally wake up at 6 am on weekdays to get to work, you might go to bed around 10 pm, because that's when you start to feel sleepy, and it's also a good time to ensure 8 hours of sleep. If, on the weekend, you sleep until 9 am, you probably won't be able to fall asleep that night until 1am.

    ⒉Be mindful of what you eat or drink before bed.{#blank#}2{#/blank#}Digestion slows down while asleep, and a full stomach may interrupt sleep. Similarly, you should avoid going to bed on an empty stomach, as a completely empty stomach may equally disturb your sleeping patterns.

    ⒊{#blank#}3{#/blank#}Exposure to light during the time when you're supposed to be sleeping can destroy your body's internal clock. Turn your light off, or use a very dim(暗淡的)night light. {#blank#}4{#/blank#}They include windows, LED clocks and computer lights.

    ⒋Change your sleeping position. You may think that it's impossible to control what position you sleep in since you aren't fully aware of what you are doing, but it is possible and it can make a considerable difference. {#blank#}5{#/blank#}

    Talking to strangers along your travels can change your trip into an adventure. Here are rules of thumb to serve as your guide.

    Don't ignore your fellow tourists. When you go to some place off the beaten path, you're likely to meet other tourists there. Find them, and ask where you would go.{#blank#}1{#/blank#}.

    Abandon your phone. Phones often get between you and the surroundings, ruining your chances to make contact with the people you see.{#blank#}2{#/blank#}, take a deep breath and put it in a different pocket or cover it with tape.

    {#blank#}3{#/blank#}. The easiest way to do this is to talk to people who are in "open roles", such as anyone in a public service job, or a taxi driver. Or ask someone seated near you; ask where the person's favorite street is; ask if there's a residential area where it would be nice to take a walk.

    Use a map-or none at all. {#blank#}4{#/blank#}. However, the truth is, sometimes those small streets are nowhere to be found with a map. So ask for directions a lot. Asking for any kind of help is the key to many doors.

    Most Important: Ask good questions. Finding good questions means observing and noticing. A well-turned question shows that you are really paying attentions you are curious and ready to listen.{#blank#}5{#/blank#}.

A. Let strangers make your plans

B. Maps can be of great assistance

C. When the unwillingness gets in the way

D. A good question will get you everywhere

E. They are going to offer advice made of gold

F. Those fellow tourists can make sense of your journey

G. If abandoning your phone isn't practical or feels insecure to you