Using too much water or throwing rubbish into our rivers are clear ways that humans can put our water supply in danger, but we also affect our water supply in less obvious ways. You may wonder how paving (铺砌) a road can lead to less useable fresh water. {#blank#}1{#/blank#} Groundwater does not come from lakes or rivers. It comes from underground. The more roads and parking lots we pave, the less water can flow into the ground to become groundwater.

    {#blank#}2{#/blank#} Drier climates are of course more likely to have droughts（干旱）than areas with more rainfall, but, in any case, good management can help to make sure there is enough water to meet our basic needs.

    {#blank#}3{#/blank#} In the United States, a family of four can use 1.5 tons of water a day! This shows how much we depend on water to live, but there's a lot we can do to lower the number.

    {#blank#}4{#/blank#} To start with, use the same glass for your drinking water all day. Wash it only once a day. Run your dishwasher (洗碗机) only when it is full. {#blank#}5{#/blank#} You can even help to keep our water supply clean by recycling (回收) batteries instead of throwing them away.

A. Human activity is not responsible for all water shortages.

B. Help your parents fix any leaks (漏水的地方) in your home.

C. Thinking about the way we use water every day can make a big difference, too.

D. Some measures to save water should be taken by the government.

E. A major part of the water we use every day is the water from lakes or rivers.

F. A major part of the water we use every day is ground water.

G. You can take steps to save water in your home.

    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!

    A great life doesn't happen by accident. A great life is the result of allocating (分配) your time, energy and hard work towards what you want your life to be. Stop setting yourself up for stress and failure. {#blank#}1{#/blank#} Make the following secrets fit your own needs and style, and start creating your own great life today!

    A great life is the result of simplifying your life. People often misunderstand what simplify means. {#blank#}2{#/blank#} Instead, it's a way to free up your energy and time for the work that you enjoy and the purpose for which you are here. In order to create a great life, you will have to make room for it first.

    A great life is the result of removing distractions(分心之事). Up to 75% of your mental energy can be used in things that are not important but distracting you. Look around at someone's life you admire. What do they do that you would like to adopt in your own life? Ask them how they did it. {#blank#}3{#/blank#}

    A great life is the result of your adjustments. {#blank#}4{#/blank#}It may mean thinking about again how you spend your time, or choosing to spend your money in a different way. It may mean looking for new ways to spend your energy that agree with your particular definition of a great life.

    {#blank#}5{#/blank#}There's the old saying everyone's familiar with "a journey of a thousand miles begins with a single step". In order to even move from the couch to the refrigerator, you have to start. There's no better time to start than today. It's what you do TODAY that will make a difference in your life tomorrow.

A. A great life is the result of starting.

B. Start setting up your life to support success and ease.

C. A great life is the result of having intention.

D. So it requires that you should make some changes.

E. It's not a way to remove work from your life.

F. It's easy to spend your days on whatever gets your attention.

G. Then you will find ways to free up your mental energy for more important things.

    If you want to keep fit, please refer to the following:

    Move More

    Make it a daily habit to find ways to move your body. {#blank#}1{#/blank#} Climb stairs instead of taking the elevator(电梯); walk your dog; play with your kids. It doesn't have to be an hour in the gym or a 45-minutedance class. But that's great when you're up to it. At the same time, move more.

    Give up Smoking

    Ever since 1960 when it was announced that smoking was harmful to health, Americans have been reducing their use of tobacco products. Just recently, we've seen more and more teens smoking. Could it be the Hollywood influence(影响)? {#blank#}2{#/blank#} Take care! Warn your children against smoking.

    {#blank#}3{#/blank#}

    While recent studies show a glass of wine or one drink a day can help protect against heart disease more than that can cause other health problems such as liver and kidney（肝和肾）disease and cancer.

    Reduce Stress

    Easier said than done. Stress comes in many ways. {#blank#}4{#/blank#} Spend 30 minutes a day doing something you like such as walking on the beach or in a park, reading a good book, visiting a friend, listening to relaxing music, and watching a funny movie.

    Protect Yourself from Pollution

    If you can't live in a smog-free environment, at least avoid smoke-filled rooms. {#blank#}5{#/blank#} Exercise in doors in air conditioning when air quality is good.

A. Avoid Excessive (过量的) Drinking

B. There are many things you can do to move your arms and legs.

C. Think carefully about what you will do.

D. Exercise outside when the smog (雾霾) rating is low.

E. It seems that the stars in every movie smoke cigarettes

F. Keep a Positive Mental Outlook

G. Some suggestions given by experts are to do something positive.

    How to prepare for an exam is a big question that you always ask yourself. Here are some tips that may help you.

    Never fear or hate exam and be confident.

    Some students study well but still may be much afraid of exams and due to this reason they get upset and won't be able to get marks.{#blank#}1{#/blank#}You have to be confident and it is of great help for you to gain success.

    Prepare a good timetable.

    Prepare a timetable before starting the study.{#blank#}2{#/blank#}Difficult subjects can be given more time and easier ones less, but most importantly you should spare some time for rest.

    Select a proper atmosphere for studying.

    Studying atmosphere plays a very important role.{#blank#}3{#/blank#}So pick a place where you feel comfortable. That is where you feel relaxed and can pay attention to what you are doing. Make sure that while you are studying a subject you are focusing on it only. So keep the books of other subjects away from your eyesight so that you won't be upset about all the things you have to learn.

    Make notes while studying

    This is a very important point. While studying, make small notes. The note should be short and clear to make the review easier.{#blank#}4{#/blank#}Yet don't try to cover everything in it.

    {#blank#}5{#/blank#}

    On the night before exam you have to sleep well, at least 6 hours and not more than 8 hours. Remember this will have a great effect on your exam. And have your food as in your daily diet.

A. Sleep well and eat well.

B. So try to present answers in points.

C. This should include all the subjects.

D. Can anyone study well while others around are watching TV?

E. A good note shall include the most important points.

F. This will be of great use to your coming exams.

G. So leave all your fears and free your mind before starting the study.

    Parents of children and teens who play football may worry about their bodies getting injury. Younger football players have the lowest chance of injury. {#blank#}1{#/blank#} Therefore, it's necessary for players to know the rules of playing football whether they are young or old. The following can be used to reduce the chance of injuries while players are still enjoying the game.

    {#blank#}2{#/blank#} The American Academy of Pediatrics advises players and their families talk about whether the risks of injury outweighs the benefits of playing football. Football has many benefits, including regular exercise, learning to be part of a team, and social growth and development. Families who decide to play can take steps to reduce the chances of serious injury.

    Play by the rules. When players know the rules of the game—what's legal and what's not—fewer injuries happen. {#blank#}3{#/blank#} For example, players should know that in football they can't come from behind, crash into a player's legs, and steal the ball. It's legal and safer to go after the ball rather than the player.

    Wear legal equipment. {#blank#}4{#/blank#} Because illegal equipment leads to serious injuries of the head and neck. It's also the leading cause of severe injuries in football, but remember the protection of legal equipment doesn't depend on its quantity.

    Get good training. Players should learn the right way to use a tackle (装备). {#blank#}5{#/blank#} Correct training could lower injury for younger players. Older players could be at a greater risk of injury if they first learn to use tackle and never learn the correct skill.

A. Take steps to lower football injury.

B. Weigh the risks and benefits.

C. The more legal equipment players wear, the less injury they will get.

D. Legal equipment can give football players important protection.

E. Players should know what to expect from each other.

F. Doing this and practicing the skills often make sure players are correctly trained.

G. As players get older, stronger and faster, the chance of injury goes up.