Why do we play sports? You might say "to get exercise" and you'd be right. To have fun? That's true, too. But there's more. In fact, there are at least five more reasons. According to the report, people who play sports get 1 more than just healthy.

    People who play sports do better in school. You might think that playing sports will 2 all your study time. But a research shows that students who play sports do better in school than 3 who don't. Exercise improves learning and memory, which can help students become more active in class.

    It's 4 that people who play sports learn teamwork and goal setting skills. Sports teach valuable life skills. When you work with coaches, trainers, and teammates to win games and achieve goals, you're learning 5 to be successful. Those skills will serve you well at work and in family life.

    Sports are good for people's health. Besides being healthy and keeping a healthy weight, people who play sports are also less possible to smoke. And 6 in life, people who exercise have fewer chances to have cancer (癌症)or some other illnesses.

    Playing sports improves confidence. People who play sports feel better about themselves. Why? It builds confidence when you know you can practice, improve, and 7 your goals. Sports are also a feel-good activity 8 they help people get in shape, keep a healthy weight, and make new friends.

    Exercise cuts the pressure. Playing sports can make you have less 9 and help you feel a little happier. A person's mood (心情)improves during exercise. Friends can also help improve your mood. And being on a team creates close relationship 10 friends. It's good to know your teammates will support you - both on and off the field!

    Americans think much about time. From childhood they learn to {#blank#}1{#/blank#} time. They are taught to be on time to go to school, to work and to do everything. When they are having a good time, they time goes easily. When a person is dying, they say he is living on borrowed time.

    Time is money. Time is knowledge. Time is {#blank#}2{#/blank#}in America. A working American has to work hard for eight hours a day or forty hours a week. This is the working time. In his free time, he also works hard for more money. Even on Saturday and Sunday he also works hard as {#blank#}3{#/blank#}. In the street you can hardly see a man walking{#blank#}4{#/blank#}. They walk very fast. In fact, they are running.

    They love time because time can bring them money and lots of things.{#blank#}5{#/blank#}sometimes they also hate time, because they feel they have become servants of the clock.

    Grandparents are respected in many human societies. But telling stories about old times and overfeeding grandchildren seem like human qualities. Are these classic grandparent behaviors really limited to humans?

Do any animals know their grandparents the way people do?

For most species on Earth, the answer is certainly " No" . " Usually, there aren't grandparents around anymore when an animal is born,"  said Mirkka Lahdenpera, a biologist at the University of Turku in Finland. " Even if an animal's life span does overlap (重叠) with its grandparents', most species spread out to avoid competing for resources, so the chance of running into a grandparent is slim." 

But there are a few clear exceptions, primarily among mammals (哺乳动物) that live in close social groups. In troops of langur monkeys in India, older females lived together with their daughters and grandchildren. The grandmother langurs defend the group's babies against attacks and even give their own grandchildren special treatment.

Many whale species, too, travel in family groups that include both grandmothers and grandchildren.

Elephant herds are also famously matriarchal. They are led by a grandmother, who can live to around 80 years old, and are generally made up of her daughters and their young. The females in a herd form close bonds and work together to raise their young.

Lahdenper found that the babies of young mothers were eight times more likely to survive if their grandmothers lived near them than if they didn't. When the young mothers were older and more experienced at raising babies, this beneficial grandmother effect disappeared even if the actual grandmothers were still around.

Indeed, most evidence for the benefits of grand parenting comes from mammals. But in 2010, researchers found that in troops of insects called gall-forming aphids, older females defend their relatives after they've stopped reproducing (繁殖).

And what about grandfathers? Studies of humans in recent decades have shown that a living grandfather can improve a person's mental health and other indicators of well-being. But there's no evidence of that in the animal kingdom. Male animals rarely socialize with their own children, let alone any grandchildren.

Early to bed and early to rise makes a man healthy, wealthy (富有) and wise (聪明). This is an old English saying. It means that we should go to bed early at night and get up early in the morning. If we do, we shall be healthy. We shall also be rich and clever.

Is this true? Perhaps it is. The body must have enough sleep. Children of your age need ten hours' sleep every night. If you go to bed late, you can't have enough sleep. Then you can't think carefully and your homework will be wrong. You will not be wise and you may not become wealthy!

Some people go to bed late at night and get up late in the morning. This is not good for them. We should sleep at night when it is dark. The dark helps us sleep well. When the daylight comes, we should get up. This is the time for exercise. If the body is not used, it will become weak.

Exercise keeps it strong. Exercise helps the blood (血液) to move around inside the body. Blood takes nutrition (营养) to all parts of our bodies. The brains (大脑) in our heads also need blood. We think with our brains. If we keep our bodies healthy, and take exercise, we can think better!

Our bodies also need air to breathe (呼吸). Without air we will die. Get up early in the morning and we can have plenty of clean, fresh air. That will keep us healthy and happy.

There are 24 solar terms(节气)in China. They can guide farming activities and are believed to be an outstanding achievement by ancient Chinese. 

Grain Rain" is the sixth solar term in the 24 solar terms and it is the last solar term in spring. It falls on April 20 this year. The term"Grain Rain" came from a folk story. When Cang Jie created writing characters, grain came down from sky like rainfall. Therefore, the Yellow Emperor named this day as the "Grain Rain". When this day comes, the number of rainfall increases. It is very important for the growth of the grain. 

Nowadays, different areas have different customs during "Grain Rain", Picking and cooking tea leaves: "Grain Rain Tea" is the name for the tea made around the time of "Grain Rain" in the south of China. it is considered as one of the best kinds of tea. it not only has a strong and good taste but also can last for a long time in water. 

Blessing(祈福)to the sea: "Grain Rain" is a perfect time for fishing. Since it gets warmer and warmer, the sea also gets warmer and more fishes swim in the sea. Fishermen in the north often bless for safety and success on the sea. 

Killing insects: As the weather gets warmer. insects become more active. Farmers in Shandong, Shanxi and Shaanxi often use different methods to kill insects. 

Taking a bath: In some of the north-west areas, people take the shower in the river during "Grain Rain" period. They think it can help them be far away from the bad luck.