Ways to sleep smarter

    Studies show that poor sleep influences people to make good decisions, concentrate on tasks or even manage a friendly mood(情绪) at work. {#blank#}1{#/blank#} Today we've got our top favorite sleep tips and facts.

Set a regular bedtime

    {#blank#}2{#/blank#}Choose a time when you normally feel tired. Try not to break this routine(惯例) on weekends when you will probably stay up late. If you want to change your bedtime, make the change gradually, such as 15 minutes earlier or later each day.

Eat the right food

    Some foods are more helpful to a better night's sleep than others.{#blank#}3{#/blank#} Others like bananas, potatoes, and whole-wheat bread are also helpful.

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    Exercising provides lots of good health benefits(好处). A good night's sleep is one of them. But make sure you exercise in the morning or afternoon. The National Sleep Foundation reports that exercise in the morning or afternoon can help deepen sleep. However, those who worked out in the evening hours saw little or no improvement in their sleep.

Reduce(减少) screen time before bed

    {#blank#}5{#/blank#} A recent study shows that people who use electronic media(媒体) just before bedtime report lower-quality sleep even when they get as much sleep as those who don't.

A. Avoid the alarm clock.

B. Exercise to improve sleep.

C. Try to solve problems in your sleep.

D. Go to bed at the same time every night.

E. There are many ways to increase the quality of your sleep.

F. Everybody knows that warm milk helps people sleep better.

G. Stop watching TV just before bedtime and you'll sleep better.

    “Who needs a shopping mall (购物中心)if you have Taobao?” says Wang Lin,28,a writer in Beijing.

    Taobao,China's largest online shopping site （网上购物网站）,has become an important part of Wang Lin's life. She spends lots of money on Taobao. A growing number of Chinese Internet users like Wang have found the joys of online shopping .Most online shoppers are students or young workers .More women shop on line than men. Clothing and home-use products（产品）are the most popular on line.

    It was reported that more than 250 billion（十亿）yuan was spent on online shopping last year, 80% through Taobao.

    Taobao means “looking for treasure” in Chinese. People can find almost everything they need on Taobao, from clothes to books , from candies to DVD players .

    You may question the security of online shopping ,Wang Lin said, “It's very safe and convenient ( 便利的).Unless you receive the products from the sellers and are satisfied with them, the shop owner will not get the money .You can also get your money back if you want to return the products.”

    At first, muffled (听不太清的)conversations made researchers at a San Diego aquarium puzzled, but when a diver thought he was being told to get “out” of the water they realized the conversations were coming from a white whale.

    Noc was about one year old when he was caught off the Pacific coast of Canada. He was kept in an open-ocean pen (围栏) at the US National Marine Mammal Foundation in San Diego, California. After seven years at the Foundation, he began, automatically, to make unusual sounds, a report in the latest issue of the journal, Current Biology, said.

    “We thought of the whale' s vocalizations(发出的声音) as an attempt to imitate humans. Whale vocalizations often sounded as if two people were talking just out of the range of our understanding,” the authors said. “ 'These conversations' were heard several times before we finally realized the whale was the source.” The researchers realized it was Noc when a diver surfaced and asked, “Who told me to get out?” It was then that they realized the word “out”, which was repeated several times, had come from Noc. Later, his speech-like sounds were recorded in the air and underwater.

    Noc started making the sounds after seven years in the open-ocean pen, and continued making them for another four years. He died five years ago. Researchers have now analyzed the sound recordings. It was the first time that sound recordings had shown how such sounds imitated speech and were different from the usual calls of the species.

    The speech-like sounds were lower than normal whale sounds and much closer to those of the human voice. Also, whales talk to each other by blowing air through their noses, rather than using a larynx(喉), as people do.

    “We don't claim that our whale was a good imitator compared to such well-known imitators as parrots,” the researchers said. “However, the behavior we observed is an example of vocal learning by the white whale. It seems that Noc's close association with humans played a role in how often and how well he employed his human voice.”

    I remember my childhood summers fondly, as many of us do. Those golden days in which I would leave the house after a still sleepy, leisurely breakfast and come home only for lunch in the middle of a day spent entirely outdoors. We did not live in town and, thus, playmates were limited to siblings (兄弟姐妹) and the cousins who lived down the road.

    Our backyard became the playground in which our imaginations would run wild—turning those few acres into magical forests, the creek (小溪) into a violent river and our trusty dog, Rex, into the many roles of horse, monster and any other creature that we children did not want to play. By the end of the three months of summer break we were sunburned from our hours in the sun, full of the memories of a thousand magical moments and bonded to our siblings in a way that winter's forced hibernation (冬眠) never seemed to connect us.

    Today, I live on the same acreage that I did as a child. My children have the blessing of having the same grassy patches to scratch their bare feet as they run through it, the same creek to stomp(跺脚)through, and not the same dog—but their very own energetic pup to imagine away the days with.

    However, this is not the same world as it was twenty, thirty years ago. There are screens everywhere in the house to demand attention—televisions with hundreds of channels, computers with access to a thousand entertaining sites, tablets stocked with apps. There is also no longer the expectation of a stretch of an unscheduled three months. Their school friends tell competitive stories of carefully planned vacations, spending time traveling to all of the local attractions—various parks, the zoo, the science center, all of the festivals which come breezing through town. On the very first day of school they will be asked to list their favorite activities of the summer and no longer are these lists filled with things like finding wood to make a bridge over a creek or a day spent in imaginative play with their siblings. The lists are now full of trips, overscheduled days and “camps” that no longer offer a stay in nature.

    Our children have become used to being entertained every minute. In our house, we have limits on electronics and kick the kids outside on a nice day. Even as we try as parents to set limits and get our children out in nature, the new cry of childhood seems to be “I'm bored,” which is not really just meaning “I'm bored,” “but “Please find something to entertain me, as I no longer can entertain myself even for a short period of time.” Our children no longer know how to sit in silence, entertain themselves while even waiting for a few minutes and have lost the awe of nature as they have become addicted to screen time.

    We have made a choice in this household to do what is no longer expected of children in many households—we will ensure that there are days of “boredom.” We refuse to spend our days scheduling our children's every hour. There will be many days with no plans at all, when they will be sent outside with only the grass and the trees and their own imaginations to entertain them.

    The screens will be turned off and our children will find that times of quiet can be just as or even more entertaining. They will bond with their brother and sister, making memories that they will replay in their minds well into adulthood. Even though sunscreen will be religiously applied, they will leave summer with sunburned and scratches coming from climbing trees, stomping through creeks and chasing the dog in the field.

    This summer I will be giving my children the greatest gift of all—boredom. For inside boredom is the gift of getting to know your own mind, of finding comfort and joy in nature and in the realization that the greatest gifts are experience, not things.

    Some people find visiting ordinary museums to be a bit dull. Fortunately for them, there are unusual museums to check out, such as underwater museums!

    How can you visit and what can you see?

    Many underwater museums are supported by companies that offer guided tours. A trained guide leads groups around a stunning underwater display of statues in each museum. Depending on the depth of the museum, visitors may be able to view the sculptures from a glass bottomed boat or by swimming on the surface. Other underwater museums are deeper and are most accessible to scuba divers.

    Why are the museums underwater?

    Underwater museums have many functions. One of their aims is to create a man-made reef environment where sea creatures can live. That's why some of the museums are located in areas that were damaged by hurricanes or are considered underwater ''deserts''. The statues in the museum are designed in a way that encourages the growth of coal and plant life. Over time, the statues and plants attract a growing number of fish to the area.

    Florida, U.S.A.

    Florida is home to different types of underwater museums. The state's newest underwater museum, the Underwater Museum of Art, can be found off the coast of Grayton Beach. This part of the Gulf Mexico is an underwater desert, so creators hope that the exhibit will improve the marine ecosystem.

    Cancun, Mexico

    For years, Cancun has been a popular tourist destination. And one of the major draws is the water. The Museo Subacuatico de Arte is an ideal place for snorkelers and first-time divers. There they can enjoy more than 500 statues that help to make up a man-made reef. This museum was created to offer visitors a replacement for the areas natural reef, which has been damaged.

    Canary Island, Spain

    Museo Atlantico, off the coast of Lanzarote, has an impressive display of more than 300 statues. They were created by the same sculptor who made the Cancun statues. They focus on man's interaction with the marine world.

    Jon Pedley is making a big change. He is giving up his life as a successful businessman for life of helping others. He is trading his beautiful farmhouse in England for life in a mud hut it Uganda, East Africa.

    Pedley admits that he has not always led a very positive life. At times he drank too much and got in trouble with the law. "I've always put the pursuit(追求) of money in front of everything else. As long as I was all right, I didn't care who I was hurting," says Pedley.

    But a visit to Uganda in 2007 gave Pedley a new outlook(观点) on life. He was amazed at what he saw and how much the people there appreciated the work he was doing. "I worked there for a few days and these people who have nothing thanked me by giving me bags of potatoes, which are a fortune for them," he said.

    Now Pedley is selling his business, his $1.5 million farmhouse, and his expensive car — and moving into a hut made of mud and boards in a small Ugandan village. There he will help run an organization that hopes to improve the quality of life for people in the village of Kigazi. He will help to build schoolrooms for children and tanks to hold clean water for villagers. Today, people in Kigazi must walk two miles to a hospital, so Pedley will help to build doctors' offices, too.

    Pedley's organization will also work with English teenagers who are in trouble. The teens will be sent to a "camp" in Uganda that Pedley will run. The teens will live in mud huts and help to build water, health and education facilities(设备) for kids in Kigazi, many of whom have lost their parents due to poverty or disease. Pedley hopes the teens will see a side of life that might help them turn around their own lives and set them on a new and more positive path.