As we all know, sleep is very important and necessary. I would love everyone to develop the following four habits to have better sleep without needing the alarm（闹钟）wake-up call.

    {#blank#}1{#/blank#}If you eat much food an hour before you go to bed, your body will hate you, because your body needs time to digest while you are still awake.

    {#blank#}2{#/blank#}When I hear on TV that people just need 30-minute exercise a week, I think that's wrong. Every person should get 30-minute exercise every day. When you exercise, your body uses energy and feels tired. You have to recover from the tiredness. {#blank#}3{#/blank#} The harder you exercise your body, the faster it falls to sleep and the better it sleeps.

    Turn the TV off. There are a few shows I still watch, but they will never get in my way of (妨碍) sleep. The bedroom is only for sleeping and rest. {#blank#}4{#/blank#}.

    {#blank#}5{#/blank#}A question to ask yourself: If I didn't have an alarm, what time would I get up? If that time is the time you need to get up, you should probably throw away the alarm. If the time you actually get up is much later than the time you need to get up, make great changes to your way of life and the time you go to sleep. No one should need an alarm.

A. Exercise for at least 30 minutes every day.

B. Don't eat any food 4 hours before you sleep.

C. Throw away the alarm.

D. Sleep is one of the most important things in our lives.

E. Your body recovers when you are sleeping.

F. Try to get up as early as you can.

G. Take the TV out of your bedroom.

    Chinese students aren't the only ones who have a sleep loss problem. In Australia, teenagers are also missing, on average, one hour's sleep every night during the school week.

    Organized activities and homework push bedtimes later, the first large-scale Australian study of children's sleeping habits has shown. Their sleep deprivation (剥夺) is enough to cause “serious drop-offs in school performance, attention and memory”, and governments should consider later or flexible school start times, said the study's leader, Tim Olds.

    His survey, of more than 4,000 children aged 9 to 18, found those who slept least did not watch more television but spent their time socializing (相处) with family or friends or listening to music.

    “Almost all children get up at 7 or 7:15 — they have to get to school on time,” said Olds. He favors a later start over an earlier finish because he believes organized sports and activities would still consume the latter end of the day.

    Olds' research also establishes lack of sleep as a cause of weight gain in children, and a possible source of future problems with depression, anxiety and increased susceptibility (易感性) to illness.

    It was already known that overweight children sleep less, but Professor Olds found sleep duration(时长) was strongly linked to weight across the full range of body sizes. The thinnest children sleep 20 minutes more than the obese. This showed being overweight had no specific effect on sleep patterns, and it was more likely that shorter sleep times stimulate (刺激) appetite and make kids hungry.

    The US National Sleep Foundation says teenagers aged 13 to 18 need eight to nine hours' sleep a night. Younger school-aged kids need 9 to 11 hours.

    On that basis, Professor Olds said, half of Australian children are under-sleeping on weekdays and a quarter on weekends.

    When people today talk about a tiny house, they probably mean the trendy living space that's about the size of a shed (棚). But you would have to be five inches tall to live in the original tiny houses. Dollhouse(小房子)，which have been around for several centuries, don't offer shelter to real people, but they provide a vivid（生动的） experience of life in times and places both real and imaginary.

    The National Building Museum in Washington, D.C., lets visitors time travel in this tiny world through ―Small Stories: At Home in a Dollhouse,” an exhibit that opened Saturday. Visitors can see twelve dollhouses from the Victoria and Albert Museum in London, England, which contain amazing tiny furnishings. But those people who put together the exhibit also wanted visitors to know the characters inside.

    “It's 300 years of British homes told through their inhabitants (居民),” said Alice Sage, who is in charge of the London museum.

    So as visitors look inside the Tate Baby House, a fancy townhouse from 1760, they can push a button to hear a young woman get a lecture from her mother on the proper way to run a home. In the Killer Cabinet house, a servant named Betsy complains about the problems of city life in the 1830s. “We've got the cat to keep the rats away,” she says.

    That dollhouse was John Killer's gift to his wife and five daughters. The girls were allowed to play with the house, but they probably also learned a few lessons, Sage said.

    “The kitchen of the house would have been the perfect way to teach the girls about the management of a home,” she said, noting the tiny dishes and pots.

    Those who prefer a more modern look won't be disappointed. There are two rooms displaying a white dollhouse from 1935, an apartment house from the 1960s and a brightly colored 21st-century design.

    The end of the exhibit shows how imaginative design sometimes works best in small spaces.

    The Building Museum asked twenty-four artists, designers and architects from across the United States to each create a “dream room” from the past, present or future. Some of these unique small rooms were made using traditional furnishings, others from materials such as clay, insects, 3D-printing, and even peeps marshmallow candies!

    Once upon a time the colors of the world started to quarrel.

    Green said, “Clearly I am the most important. I am the sign of life and hope. I was chosen for grass, trees and leaves. Look over the countryside and you will see that I am in the majority.”

    Blue interrupted, “You only think about the earth, but consider the sky and the sea. It is the water that is the basis of life.”

    Yellow chuckled(咯咯地笑). “The sun is yellow, as well as the moon and the stars. Every time you look at a sunflower, the whole world starts to smile.”

    Red could bear it no longer. “I am the ruler of all of you. I am blood-life's blood! I am the color of danger and bravery. I bring fire into the blood. I am the color of passion and love.”

    Purple stood at his full height. “I am the color of royalty(皇室) and power. I am the sign of authority (权力) and wisdom. People do not question me! They listen and obey.”

    Finally Indigo(靛蓝) spoke with determination, “Think of me and I am the color of silence. I represent thought and reflection. You need me for balance and contrast(对比), for prayer and inner peace.”

    The colors went on boasting(吹嘘), each showing off his or her own advantages. Suddenly there came a flash of bright lightening. Thunder rolled and boomed. Rain started to pour down. The colors were scared to death.

    In the midst of the quarrelling, rain began to speak, “You foolish colors. Don't you know that you were each made for a special purpose, unique and different? Join hands with one another and come to me.”

    Doing as they were told, the colors united and joined hands.

    From then on, when it rains, colors will stretch across the sky in a great bow of color.

    Whenever a rainbow appears in the sky, let us remember to appreciate one another.

    Even the hardest days contain lessons that will help you be a better person. Feeling down？Consider these things to remember when you're having a bad day.

    No one promised life would be perfect. If you look for perfection, you'll never be content. Don't condition your happiness on meeting every expectation you set for yourself. It is good to be ambitious，but you'll never be perfect. If you expect otherwise, your life will be filled with disappointments.

    Success doesn't happen overnight. Trees that are slow to grow bear the best fruit. Don't kid yourself into thinking success will come quickly. It isn't easy to be patient，but anything worth doing requires time. If you get frustrated, remind yourself why your goal is important.

    There is a lesson in every struggle. And once the storm is over，you won't remember how you made it through or how you managed to survive. But one thing is certain. When you come out of the storm, you won't be the same person who walked in. That's what this storm's all about. Don't complain about how terrible your life is. If you search for the lesson in your present struggle, you'll be able to make positive changes that would prevent similar situations in the future.

    Without hard times, you wouldn't appreciate the good ones. Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to give in, that is strength. It is hard to find much to smile about when you fail, but how else would you improve yourself？If you look at failure as a part of your evolutionary process, you'll stay positive and pursue your goals for as long as it takes.

    When a child says their first word, it's an event to remember. But when a girl with nonverbal autism (自闭症) does it, it's a reason to ugly cry in a parking lot. And that's exactly what happened to Briana Blankenship from Athens, Alabama. Doctors said her daughter, Taylor, might never speak. But just days ago, the 5-year-old girl challenged it and proved them wrong.

    “I had basically accepted that I would never hear her voice,” Briana said.

“We communicate with limited sign language and gestures,” Briana said, “We also have an iPad that is locked so that the only program she can access is a communication program called LAMP. LAMP is what she uses to complete work in school and because of this, she is excellent at spelling especially for a 5-year-old.” Taylor is also in the “inclusion” Kindergarten class where she receives occupational therapy (治疗) to help with her fine motor skills. “Her dad and I also pay for her to go to gymnastics every week and it has helped her stop her tiptoe walking”.

    However, when Briana was taking her daughter to a gymnastics class, the impossible happened. “We were on our way there- running late- so I had to go through the closest drive-thru to grab her something that she would actually eat We rarely eat fast food so she recognized that she was about to get her favorite food, French fries, and started getting excited and giggling (咯咯笑) in the back seat. That's when I heard her say it. I whipped my head around and asked “Did you just say Momma?” and she looked at me and said it again.

    I broke down into tears. “I parked my car after getting our food and immediately called my husband and then my mother. I didn't have time to call anyone else before class started so I quickly posted the video to my Facebook page.” Instantly, people flooded Briana's inbox. “We have had so many messages from people that we are giving them light for their loved ones, or that we are making them feel less alone in the daily battles of parenting a nonverbal child.