Snow falls in the Earth's extreme North and South throughout the year. However, the heaviest snowfalls have been reported in the mountains of other areas during winter. Snow is even known to fall near the Equator (赤道), but only on the highest mountains.

    Snow contains much less water than rain, but much of the water the world uses comes from snow. {#blank#}1{#/blank#} In the western United States, mountain snow provides up to seventy-five percent of all surface water supplies.

    Snowfall helps to protect plants and some wild animals from winter weather. Fresh snow is made largely of air trapped among the snow crystals (晶体). Because the air has trouble moving, the movement of heat is limited. {#blank#}2{#/blank#} The surface of the snow takes in, or absorbs, sound waves. As snow grows older or if there have been strong winds, it can become hard and flat. Then, the snow's surface will help to send back sound waves.

    {#blank#}3{#/blank#} It is responsible for the deaths of hundreds of people. Many people die in traffic accidents on roads covered with snow and ice or from being seriously stuck in the winter storm. {#blank#}4{#/blank#}.

    People may not be able to avoid living in areas where it snows often. However, they can avoid becoming victims of snowstorms. People should stop driving and stay at home until the storm has passed. People living in these areas should carry emergency supplies in their vehicle. {#blank#}5{#/blank#}

A. These include food, emergency medical supplies, and extra clothing to stay warm and dry.

B. Snow also influences the movement of sound waves.

C. Melting snow provides water for rivers, electric power stations and agricultural crops.

D. Mountain snowfall is heavier than that in the South and the North Poles.

E. In many places, streets were blocked; houses fell down and supplies were short.

F. Others die from heart attacks caused by too much physical activity out in the cold.

G. Snow may be beautiful, but it can be deadly.

    With the summer holiday just around the corner, it seems like everybody is busy planning their vacations. Here are some tips that can help you enjoy your holiday without empting your pocket:

    Travel off-season

    Go to your desired destination while the demand is low and take advantage of huge discounts. During the peak season, the hotel and flight prices increase quickly, and you'll likely spend more of your vacation time standing in line due to the rush of tourists. {#blank#}1{#/blank#}

    {#blank#}2{#/blank#}

    Websites can help you find discount hotel rooms. Look for places that do not charge extra for children if they use the existing bedding. Stay with the locals. If you and your family are going to stay for a longer period, renting a small apartment is a good choice.

    Eat like a local

    Why eat at big chain restaurants when you can experience something new? {#blank#}3{#/blank#} During your family trip, try new food where the locals eat. This will not just save money, but also provide you with a new and different experience. For smaller meals and snacks, avoid restaurants and try street food or other takeout. 

    Don't hesitate to bargain

    Tourist- heavy places are known for overcharging for just about everything. Clothes, travel goodies, souvenirs, etc. are very expensive at these places. {#blank#}4{#/blank#} Bargain hard to get the best price.

    Choose local transportation

    {#blank#}5{#/blank#} Instead, take buses, railways or subways, which are always cheaper. If you are planning to stay for a while, you can consider renting a car. Hiring a car is much easier than carrying your bags everywhere if you are moving around a lot.

A. Save on hotels.

B. Surf the Internet while traveling.

C. Therefore, avoid buying anything there.

D. So it's best to find out when the off-season starts.

E. Planning your meals is another way to reduce your travel costs.

F. For this reason, you shouldn't feel ashamed to ask for bargains.

G .As a tourist, avoid taking taxis whenever possible, since they are expensive.

    Being fit is a way of saying a person eats well, gets a lot of physical exercise, and has a healthy weight. There are a lot of discussions these days about fit kids.{#blank#}1{#/blank#}

    1).Eat a variety of foods. You may have a favorite food, but the best choice is to eat a variety.

    {#blank#}2{#/blank#}Taste new foods and old ones you haven't tried for a while. Some foods, such as green vegetables,  are more pleasing the older you get. Shoot for at least five servings of fruits and vegetables a day-two fruits and three vegetables.

    2).Listen to your body. What does it feel like to be full? When you're eating, notice how your body feels and when your stomach feels comfortably full. Sometimes, people eat too much because they don't notice when they need to stop eating.{#blank#}3{#/blank#}

    And over a period of time, overeating can lead to unhealthy weight gain.

    3).{#blank#}4{#/blank#}.What's screen time? It's the amount of time you spend watching TV or DVDs, playing video games, and using the computer. The more time you spend on these sitting-down activities, the less time available for active stuff, like basketball, bike riding and swimming.{#blank#}5{#/blank#}

    These rules aren't magic.

    However, follow them most of the time and you can become a fit kid sooner or later.

A. Limit screen time.

B. If you're a kid who wants to be fit, here are three rules to live by.

C. Drink water and milk.

D. Ask your parents to help you do your favorite activities regularly.

E. Eating too much can make you feel uncomfortable.

F. If you eat different foods, you're more likely to get the nutrients your body needs.

G. Try to spend no more than 2 hours a day on screen time.

    Generally, the skills and attitudes you form as a student will be especially important to your development. The following tips can help you become an active student.

    Don't be satisfied with yourself{#blank#}1{#/blank#}Leave no room for the average of the ordinary. If you can do good things, try hard to become better. If you have become better, try to become the best.

    Give yourself new challenges{#blank#}2{#/blank#}Any new things will give you the chance to understand yourself better. You should try anything. What you learn from these activities can be useful in the future.

    {#blank#}3{#/blank#}One reason why a student is not active may be that he has a defeated(挫败的) attitude. As much as possible, you should face each challenge with the willingness to succeed.

    Think over your mistakes, if there are any. Being active doesn't mean you will always be successful{#blank#}4{#/blank#} However, they will never succeed if they don't realize the meaning of failure.

    Keep a to-do list. This can serve as a reminder when a student becomes lazy{#blank#}5{#/blank#}

A. To achieve this, you have to desire to become excellent.

B. Have strong faith that you will succeed.

C. Try to take an active part in group discussions.

D. Don't be afraid to attend activities you wouldn't normally do.

E. There are students who would give up the moment they fail.

F. You can't be active if you don't know what is going on.

G. It can keep you on the right track and help you organize your tasks for the day.

    What makes one person more intelligent than another? What makes one person a genius, like the brilliant Albert Einstein, and another person a fool? Are people born intelligent or stupid, or is intelligence the result of where and how you live? {#blank#}1{#/blank#}

    We know, however, that just being born with a good mind is not enough. In some ways, the mind is like a leg or an arm muscle. {#blank#}2{#/blank#} Mental exercise is particularly important for young children. Many child psychologists think that parents should play with their children more often and give them problems to think about. {#blank#}3{#/blank#} If on the other hand, children are left alone a great deal with nothing to do, they are more likely to become dull and unintelligent. {#blank#}4{#/blank#}According to some psychologists, if parents are always telling a child that he or she is a fool or an idiot, then the child is more likely to keep doing silly and foolish things. So it is probably better for parents to say very positive things to their children, such as “That was a very clever thing you did.”or“{#blank#}5{#/blank#}”

A. A healthy body contributes to one's intelligence.

B. Parents should also be careful about what they say to young children.

C. What people want to express is like this.

D. The children are then more likely to grow up bright and intelligent.

E. It needs exercise.

F. You are such a smart child.

G. These are very old questions and the answers to them are still not clear.

    Eyesight plays a very important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it's easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight：

    Schedule yearly exams. {#blank#}1{#/blank#}Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check. The good news is that millions of children now can have yearly eye exams and following treatment, including eyeglasses.

    Protect against UV rays (紫外线). Long term stay in the sun creates risk to your eyes. No matter what the season is, it's extremely important to wear sunglasses. {#blank#}2{#/blank#}

    Give your eyes a break. Two thirds of Americans spend up to seven hours a day using computers or other digital products. {#blank#}3{#/blank#}Experts recommend that people practice the 20/20/20 rule: every 20 minutes, take a 20second break and look at something 20 feet away.

    {#blank#}4{#/blank#}As part of a healthy diet, eat more fruits and vegetables each day. Vitamins C and E help protect eyesight and promote eye health.

    Practice safe wear and care of contact lenses (隐形眼镜). Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk. {#blank#}5{#/blank#} Otherwise, you may have problems such as red eyes, pain in the eyes, or a more serious condition.

A．Eat your greens.

B．Eye care should begin early in life.

C．They can properly protect your eyes.

D．Stay in good shape by taking more vitamins.

E．Parents usually don't care about their own eyesight.

F．Always follow the doctor's advice for appropriate wear.

G．This frequent eye activity increases the risk for eye tiredness.