Lots of people find it hard to get up in the morning and put the blame on the alarm clock. In fact, the key to easy morning wake-up lies in resting your body clock{#blank#}1{#/blank#} Here is how to make one.

    ● {#blank#}2{#/blank#} In order to make a change, you need to decide why it's important. Do you want to get up in time to have breakfast with your family, get in some exercise, or just be better prepared for your day? Once you are clear about your reason, tell your family or roommates about the change you want to make.

    ● Rethink mornings. Now that you know why you want to wake up, consider re-arranging your morning activities. If you want time to have breakfast with your family, save some time the night before by setting out clothes, shoes, and bags.{#blank#}3{#/blank#}That's a quarter-hour more you could be sleeping if you bought a coffee maker with a timer.

    ● Keep your sleep/wake schedule on weekends. If you're tired out by Friday night, sleeping in on Saturday could sound wonderful. But compensating on the weekends actually feeds into your sleepiness the following week, a recent study found. {#blank#}4{#/blank#}

    ● Keep a record and evaluate it weekly. Keep track of your efforts and write down how you feel. After you've tried a new method for a week, take a look at your record.{#blank#}5{#/blank#}If not, take another look at other methods you could try.

    For students at the Farm School in Hamilton, Virginia, the classroom is outside every day. Jaclyn Jenkins is the founder of the school. “The No. 1 question we get immediately from parents is 'What happens if it rains?' And we say, 'Bring an extra set of clothes!'” Jenkins adds, “We still educate them. Their brains are working when they're moving. So, our goal is to always be outside.” The Farm School is a preschool, a place for 3- and 4-year-olds to learn and play.

    Alison Huff has taught at other schools. She says the Farm School gives its students more of a hands-on learning experience. For example, children use pumpkins to learn about colors and counting. They learn about measurement by planting seeds 30 centimeters apart. Huff adds, “We can use everything a regular preschool uses, but out in the garden.” In addition to planting vegetables and fruits, children help prepare food and clean up afterwards. The school teaches the children to cook using the food they have grown. “They can see the benefits of what they have in the garden and taste it then instead of going to the grocery store and buying it,” says Huff.

    The preschoolers also learn words in languages other than English. Huff speaks in both English and Spanish. Her assistant speaks French and Arabic. A 3-year-old in her class speaks four different languages.

    Farm animals are also an important part of the education program. Jenkins says the children learn about a different animal every month. Two months ago, she says, that animal was a cow. “We do actually have a cow that we bring to the school. They get to see what the cow is like, an learn what cows eat. They use little gloves and pretend to actually milk a cow. They make butter and yogurt.” The children spent another month with a large bird — a turkey.

    The idea for a school like this started after Jenkins and her husband bought a farm in Hamilton, with a late 18th-century house. They called it “One Day Farm” because years earlier they had hoped that “one day” they would have a farm. “That's when it started, the spark of a farm school,” said Jenkins.

    Annie Oakley was born in 1860 in Darke County, Ohio. Her family was very poor. She decided to help family even when she was young, so she learned to use a gun, and began hunting animals for food. She could shoot them without losing the important parts of the meat.

    Soon her shooting ability became well known. When she was sixteen, she was invited to a competition with a famous marksman(神枪手) , Frank Butler. Annie surprised everyone by winning the competition. Later that year she and Frank married.

    In 1882 Annie Oakley and Frank Butler started putting on shows together. Frank Butler was the star of the show and she was his assistant. The famous native American leader, Sitting Bull, thought so highly of her shooting ability that he called her "Little Sure Shot". Later Annie Oakley became the star of the show and Frank Butler was her assistant. Posters （海报）for the show called her the "Champion Markswoman".

    During World War I, Annie Oakley wanted to train a group of women volunteers for the army, but the United States did not accept it. She gave American soldiers shooting lessons, and traveled across the country visiting many training camps. She gave shooting performance and raised money to support the American soldiers.

   Annie Oakley died on November 3, 1926. Eighteen days later, Frank Butler died too.

    Many people believe high heels(E)make women look good. It seems that the organisers of the Cannes Film Festival reportedly stopped women in low-heeled shoes from walking the red carpet. But all this charm comes at a cost, wearing heels over 10em high can damage your feel.

    A study by Hanseo University in South Korea suggests that continuous wearing makes women run the risk of getting hurt, and makes them easy to lose their balance, A total of 40 women who wear high heels at least three times a week took part in the study, The strength of their feet was measured regularly, researchers found that two of the four main muscles became stronger after a period of between one and three years, This created an imbalance in their feet, Dr Yong Seok Jee from Hanseo University says that the habit of wearing heels can result in feet out of shape, back pain and unhealthy walking patterns He suggests that women limit the use of these kinds of shoes and exercise their foot muscles properly.

    High heels are considered by some people to be female, but in fact the fashion started with men's feet. These shoes were a form of riding footwear, and were seen on the feet of 17th century Persian soldiers, Elizabeth Semmelhack of the Bata Shoe Museum in Toronto says: “When the soldier stood up in his stirrups (马镫), the heel helped him keep balance so that he could shoot more effectively.

    Before becoming a main part of modern women's clothing, high heels were used by Louis XIV of France. These shoes were status (身份) symbols Lets face it-nothing shows off status like uncomfortable, expensive and impractical clothing. They say the wearer doesn't have to work in fields or walk very far.

    Robots are increasingly being developed to think and act like humans. But it is difficult for engineers to create humor (幽默) in machines. Computer scientists have hoped to help them understand humor. But they failed again and again. Why is it so difficult?

    Kiki, a computer language expert (专家), studies humor at a university. "Most robots are powered by artificial intelligence (人工智能AI). But AI will never understand jokes like humans do." He said, "The main problem is that AI system doesn't have the sense of humor."

    Other experts agree that context (语境) is very important to understand humor, both for humans and robots. In one project, Tristan Miller, a computer scientist, studied more than 10, 000 puns. Puns are a kind of joke that uses a word with two meanings. For example, you could say, "Balloons (气球) do not like pop music." The word "pop" can be a way of saying popular music, or "pop" can be the sound a balloon makes when it explodes(爆炸). "A robot might not understand the joke because it doesn't know the meaning of the puns." Miller said.

    Although it's difficult, some scientists say there are good reasons to keep trying to teach humor to robots. It can make machines understand humans better and serve humans better. And it can also help them to think more like humans.

    But other scientists don't think it's a good idea to teach humor to robots. They may find humor, but they may use it in a wrong way. Maybe bad Al will start killing people because it thinks it is funny. Besides, it may make some people feel not safe. The comedians(喜剧演员) may lose their jobs when the robots can understand humor.

When you were trying to figure out what to buy for the environmentalist on your holiday list, fur probably didn't cross your mind. But some ecologists and fashion enthusiasts are trying to bring back the market for fur made from nutria (海狸鼠).

Unusual fashion shows in New Orleans and Brooklyn have showcased nutria fur made into clothes in different styles. "It sounds crazy to talk about guilt-free fur—unless you understand that the nutria are destroying vast wetlands every year", says Cree McCree, project director of Righteous Fur.

Scientists in Louisiana were so concerned that they decided to pay hunters $5 a tail. Some of the fur ends up in the fashion shows like the one in Brooklyn last month.

Nutria were brought there from Argentina by fur farmers and let go into the wild. "The ecosystem down there can't handle this non-native species. It's destroying the environment. It's them or us." says Michael Massimi, an expert in this field.

The fur trade kept nutria check for decades, but when the market for nutria collapsed in the late 1980s, the cat-sized animals multiplied like crazy.

Biologist Edmond Mouton runs the nutria control program for Louisiana. He says it's not easy to convince people that nutria fur is green, but he has no doubt about it. Hunters bring in more than 300,000 nutria tails a year, so part of Mouton's job these days is trying to promote fur.

Then there's Righteous Fur and its unusual fashion. Morgan says, "To give people a guilt-free option that they can wear without someone throwing paint on them — I think that's going to be a massive thing, at least here in New York." Designer Jennifer Anderson admits it took her a while to come around to the opinion that using nutria fur for her creations is morally acceptable. She is trying to come up with a label to attach to nutria fashions to show it is eco-friendly.