Smiling is a great way to make yourself stand out while helping your body to function better. Smile to improve your health, your stress level, and your attractiveness.

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    We are drawn to people who smile. There is an attraction factor. We want to know a smiling person and figure out what is so good because anxieties can push people away, but a smile draws them in.

Smiling changes our mood

    Next time you are feeling down, try putting on a smile. {#blank#}2{#/blank#}Smiling can trick the body into helping you change your mood.

Smiling relieves stress

    Stress can really show up in our faces. Smiling helps to prevent us from looking tired or worn down. {#blank#}3{#/blank#}The stress should be reduced and you'll be better able to take action.

Smiling lowers your blood pressure.

    When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor (血压计) at home. Sit for a few minutes and take a reading. Then smile for a minute and read it again while still smiling. {#blank#}4{#/blank#}

Smiling lifts the face and makes you look younger.

The muscles we use to smile lift the face, making a person appear younger. Don't go for a face lift, just try smiling your way through the day — you'll look younger and feel better.

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    Try this test: Smile. Now try to think of something negative without losing the smile. It's hard. When we smile, our body is sending the rest of us a message that “Life is good!"

A. Smiling helps you stay positive.

B. Smiling makes us attractive.

C. Do you notice the difference?

D. Smiling can bring you luck and sorrow.

E. When you are stressed, take time to put on a smile.

F. There's a good chance that your mood will change for the better.

G. As long as you try smiling daily, it can make you look younger.

    Kids would love to have more money in their pockets. With the money that {#blank#}1{#/blank#}(make) by themselves they can buy the things they want. Actually, making money when you are a kid is much{#blank#}2{#/blank#}(easy) than you think. Here is a great method of making money for you, if you are a kid. It's dog walking.

    Don't try to do dog walking as a business if you are not{#blank#}3{#/blank#}(comfort) with dogs. However, if you love dogs, this can be a good {#blank#}4{#/blank#}(choose).

    Usually your customers are in the neighborhood. Ask dog owner {#blank#}5{#/blank#}(tell) you as much as possible{#blank#}6{#/blank#} their dogs and their habits. It's very important that you keep friendly with the dogs{#blank#}7{#/blank#}(bring) a treat to the dogs can help develop a friendship with them.

    You can charge 5 dollars {#blank#}8{#/blank#}a walk lasts 30 minutes. If a dog's owner wants you to walk{#blank#}9{#/blank#}(he) dog for an hour, you can charge 10 dollars or even 15 dollars.

    The only disadvantage of this method is that you have to deal with dog waste. Be sure to take{#blank#}10{#/blank#} bag and clean up after those dogs.

    Athens, the capital of Greece{#blank#}11{#/blank#}(know)as the birthplace of{#blank#}12{#/blank#}(west) civilization. Two thousand four hundred years ago, it was the world's most {#blank#}13{#/blank#}(power)city{#blank#}14{#/blank#} (build) such as the Parthenon on the Acropolis Hill were built during this period. Greece's best writers lived in ancient Athens. Their work has influenced other writers ever {#blank#}15{#/blank#}

    In every British town, large and small, you will find shops that sell second-hand goods. Sometimes such shops deal mostly in furniture, sometimes in books, sometimes in ornaments（装饰） and household goods, sometimes even in clothes.

    The furniture may often be “antique”, and it may well have changed hands many times. It may also be very valuable, although the most valuable piece will usually go to the London salerooms, where one piece might well be sold for hundreds of thousands of pounds. As you look around these shops and see the polished wood of chests and tables, you cannot help thinking of those long-dead hands which polished that wood, of those now-closed eyes which once looked at these pieces with love.

    The books, too, may be antique and very precious; some may be rare first printings. Often when someone dies or has to move house, his books may all be sold, so that sometimes you may find whole libraries in one shop. One the border between England and Wales, there is a town which has become a huge bookshop as well. Even the cinema and castle have been taken over, and now books have replaced sheep as the town's main trade.

    There are also much more humble shops, sometimes simply called “junk shops”, where you can buy small household pieces very cheaply. Sometimes the profits（利润）from these shops go to charity（慈善事业）. Even these pieces, though, can make you feel sad; you think of those people who once treasured them, but who have moved on to another country or to death.

    Although the British do not worship（崇拜）their ancestors, they do treasure the past and the things of the past. This is true of houses as well. These days no one knocks them down; they are rebuilt until they are often better than new. In Britain, people do not buy something just because it is new. Old things are treasured for their proven worth; new things have to prove themselves before they are accepted.

    Can dogs and cats get along well in the same home? People who are thinking about getting a dog as a friend for their cat are worried that they will fight. A recent research has found that if the cat is taken back home before the dog, and if they are introduced when still young (less than 6 months for cats, a year for dogs), it is highly probable that the two pets will get along swimmingly. In two-thirds of the homes cats and dogs have a good relationship.

    However, it wasn't all sweetness and light. There was a reported coldness between the cat and dog in 25% of the homes, while aggression(侵略，好斗) and fighting were found in 10% of the homes. One reason for this is probably that some of their body languages are just different. For example, when a cat turns its head away it means aggression, while a dog doing the same means submission(顺从).

    In homes with cats and dogs living peacefully, researchers found a surprising behavior. They are learning how to talk each other's language. It is a surprise that cats can learn how to talk "Dog", and dogs can learn how to talk "Cat".

    What's interesting is that both cats and dogs have appeared to become smarter. They can learn to read each other's body languages, suggesting that the two may have more in common than was expected. Once familiar with each other's body language, cats and dogs can play together, and enjoy sleeping together on the sofa.

    The importance of this research on cats and dogs may go beyond pets — to people who don't get along well, including neighbors, colleagues at work, and even countries. If cats and dogs can learn to get along, surely people have a good chance.

    Scientists can figure out a movie's emotional tone from the gasps(喘气) of its audience. These gases could point the way to a subtle(微妙的，精细的) form of human communication, a new study suggests.

    "When you see a movie, you can hear the music and see the pictures. However, you don't realize here are chemical signals in the air. And they, too, could be affecting you, says Williams, who led the study. As an atmospheric chemist, he studies the chemical makeup of the air around us.

    Williams started out measuring the air in a soccer stadium. He noticed that levels of carbon dioxide and other gases changed wildly whenever the crowd cheered. That got him wondering -- Could the gases people breathe out be influenced by emotions?

    To find out, he went to the movies.

    Williams and his coworkers measured air samples collected over six weeks in two movie theaters. Overall, 9,500 movie goers watched 16 films. They included a mix of comedy, romance, action and horror films. Among them were The Hunger Games, Catching Fire, Carrie, and Walking with Dinosaurs. The researchers gave scenes from the movies such labels as "suspense(悬疑)", "laughter" and "crying". Then they looked for hundreds of chemicals in the air that showed up as people were watching particular movie scenes.

    And certain scenes had distinct chemical "fingerprints". Scenes that had people laughing or on the edge of their seats were especially distinctive. During screenings of The Hunger Games, levels of carbon dioxide and isoprene got to the highest at two suspenseful moments. Because isoprene is related to muscle movement, the researchers think tense movie moments likely led to its spikes(尖峰). Williams and his colleagues think the increase in carbon dioxide was due to the viewers' increased pulse and breathing rates.

    Scientists need more data to make stronger links between human emotions and what's in their breath. But Williams can see potential practical uses. Companies, for instance, could quickly measure the air during tests to see how people feel about new products. He pictures future studies recording other body variables(变数) as well. These might include heart rate and body temperature, for instance. "It's something to find out."

Foldable phones are once again facing questions about their durability(耐久性).The Galaxy Z Flip and the Motorola Razr are now both available to buy in the US-but early reports suggest the screens are easily damaged.

One media published photos of two layers of the Razr's display separating, affecting the touch screen. The Galaxy flip, meanwhile, boasts(自夸)a "flexible glass" display—but tests appear to show it scratching(刮擦)as easily as plastic.

In a statement, Samsung said the display had a protective layer, and had undergone extensive testing. "While the display does bend, it should be handled with care, "it said.

The Z Flip's "pretty thin glass" is one of Samsung's primary marketing messages for the new phone. But a durability test conducted by popular Zack Nelson, a regular buyer, suggested it was no more durable than soft plastic screen, and could even be dented(痕)by fingernail.

Nelson said Samsung's screen scratched exactly how plastic screen would react. "I don't know what material this is, but Samsung definitely shouldn't be calling it glass," he said. He found that the screen of the Motorola Razr scratched as easily but it is not marketed as "glass".

The Motorola Razr was put on sale 13 days ago in the US, but Raymond Wong, an editor says the flexible screen on his handset has already broken. The upper layer of the Razr's screen separated from the bottom, creating "a giant horizontal air bubble" for no apparent reason. He wrote that the fault appeared after 45-minute train ride during which the phone was in his pocket. The screen was completely warped from hinge-to-hinge with the top layer raised like a poorly applied screen protector. But Mr. Wong said that apart from the visual problem, the damage has affected the responsiveness of the touchscreen.