A new study suggests that the timing of a wound affects the speed at which it heals(愈合). Wounds suffered during the day heal around 60 percent faster than those at night.

    The study showed how the body's circadian rhythm(昼夜节律) controlled the healing of wounds{#blank#}1{#/blank#} It tells our bodies when to wake up, eat and sleep in a cycle—a series of activities that repeat themselves day after day{#blank#}2{#/blank#}

    In the study, researchers found that skin cells moved faster to repair wounds suffered during the day. Their findings were published in the journal Science Transnational Medicine.

    The researchers examined cells, mice, and burn injury databases{#blank#}3{#/blank#}Night-time burns—burns suffered between 8 o'clock at night and 8 o' clock the next morning—were 95percent healed after an average of 28 days.

    But after an average of 17 days, daytime burns-burns suffered between 8 o'clock in the morning and 8 o'clock at night—were 95 percent healed{#blank#}4{#/blank#}

    Wounds are very costly to treat{#blank#}5{#/blank#}In Britain's National Health Services, for example, such services cost around $6.56 billion per year. Experts say the high costs result, in part, from a lack of drugs that speed up the closure of wounds.

A. Each cycle lasts about 24 hours.

B. The circadian rhythm is like a clock or timer.

C. Specifically their investigation found the following information:

D. The new study's findings could help scientists develop better drugs.

E. In other words, nigh-time injuries took an average of 11days longer to heal

F. Worldwide, billions of dollars are spent every year on wound-treatment services.

G. That's what a group of researchers from a university in Canada recently published.

    There are some people who seem to always be surrounded by friends, and there are others who always seem to be standing on the outside, looking in at the crowds of friends. If you are one of the outsiders, it is time to break out of your shell and start making new friends{#blank#}1{#/blank#}

    ⒈Be yourself. Nobody likes a phony(虚伪的人). In fact, if you aren't yourself, others won't become friends with you. When the time comes that you feel comfortable enough to act like yourself again, you may not be well received, because you are a totally different person{#blank#}2{#/blank#}

    ⒉Use technology{#blank#}3{#/blank#} For instance, Weibo is a great place to meet new people. It creates experiences and you get to meet like-minded people who share your interests.

    ⒊Start with people you know. Reach out and contact new friends, and reconnect with old friends you haven't seen in a long time. Don't forget about friends of friends. You may connect with some really cool people just by hanging out with your friends and their friends{#blank#}4{#/blank#}If you stay home, you aren't going to meet people.

    ⒋Keep in touch{#blank#}5{#/blank#}With the Internet and social media, there is absolutely no need to worry about that these days. Look up old friends and contact them.

A. There are all kinds of online groups that you can join.

B. Knowing others well is very important.

C. Therefore, let people get to know the real you.

D. If you are invited to go out, go.

E. All too often, people lose touch with one another.

F. Here are some tips that will help.

G. You need to trust yourself, whatever happens.

                                                                             Easy Ways to Keep Your Brain Sharp

Everyone is forgetful, but as we age, we start to feel like our brains are slowing down a bit一and that can be a very annoying thing.{#blank#}1{#/blank#}Read on for some techniques worth trying.

    ⒈{#blank#}2{#/blank#}

    People who regularly made plans and looked forward to upcoming events had a 50 percent reduced chance of Alzheimer's disease (早老性痴呆症)，according to a recent study.{#blank#}3{#/blank#}Something as simple as setting a goal to have a weekly coffee date with a friend will do. There's evidence that people who have a purpose in life or who are working on long or short-term goals appear to do better. In other words, keep your brain looking forward.

    ⒉Go for a walk.

    Mildly raised glucose (葡萄糖) levels can harm the area of the brain that helps you form memories and physical activity can help get blood glucose down to normal levels. In fact, exercise produces chemicals that are good for your brain.{#blank#}4{#/blank#}

    ⒊Learn something new.

    Take a Spanish class online, join a drawing club, or learn to play cards. A study found that mental stimulation (刺激) limits the weakening effects of aging on memory and the mind. But the best thing for your brain is when you learn something new and are physically active at the same time.{#blank#}5{#/blank#}Or go dancing with your friends.

A. Focus on the future.

B. This can be especially harmful to the aged.

C. It should be something like learning gardening.

D. So take a few minutes each day to do some reading.

E. But don't worry if your schedule isn't filled with life changing events.

F. Luckily, research shows there is a lot you can do to avoid those moments

G. In other words, when you take care of your body, you take care of your brain.

Smart Cameras to Help You Take Better Photos

    Google Clips

    One of the latest to launch is Google Clips. It is designed to be put somewhere in a room to take pictures by itself. It can also be attached to an object or a person's clothing.

    Google says machine learning helps the camera choose the best times and situations for taking pictures and videos. Interested buyers can join a waiting list to be informed when it is on the market.

    GoPro Hero

    GoPro also uses machine learning to power its QuikStories characteristic. This tool takes existing photos and videos and automatically creates a finished video piece, complete with music and effects.

    Snap Spectacles

    Messaging app Snapchat sells a pair of sunglasses with a built-in camera that can record short videos with the push of a button. Snap Inc. says the product, called Spectacles, is designed to "catch the moment, without taking you out of it."

    The glasses can record short video clips that can be shared with Snapchat users. Snap Inc. has started selling its Spectacles sunglasses online in the United States.

    Apple iPhone X

    Apple's new iPhone X is being launched with its new Face ID system that it says will unlock the phone just by having the user look at it. This replaces the Touch ID on previous ones that used a fingerprint to unlock the phone.

    Apple says the system works by projecting more than 30,000 dots on the face to create a kind of map. Apple says its facial recognition is even secure enough to allow payments through its Apple Pay service.

    "When someone is rude to you, it can put you in a bad mood. It may even lead you to be rude to someone else, creating a chain of rudeness. In fact, this troubling chain may even be caused by simply seeing someone be rude to another person. You don't even have to be the target of the had behavior," stated a researcher.

    The researchers worked with 81 persons, with occupations ranging from security to business to medicine, who were asked to complete online surveys over a 10-day period. Participants recorded their moods when they woke up; and in the evening, they described their experiences over the course of that day.

    Each morning the participants also viewed a short video, describing workplace interaction of some kind. Half of the mornings, the video included some kind of rudeness while the other half had some kind of warm interaction in the workplace. Rudeness was conveyed through various means, including a lack of eye contact or unpleasant language.

    Participants who watched the rudeness videos reported seeing or experiencing rudeness during the day, and they were also more likely to escape from fellow employees to avoid being the victims of rudeness themselves. They reported their overall work suffered that day as a result.

    Not all participants were affected by the rudeness videos, however. A few weeks before the study began, the participants completed an evaluation that measured their self-confidence and emotional stability among other things. The participants who scored higher on this evaluation were significantly less likely to be influenced by the rudeness.

    Consequently, one of the researchers recommended that companies hire managers who can limit exposure to rudeness, provide plenty of positive reinforcement (强化) and build a civil workplace environment. This, in turn, could help employees build their confidence levels and help them better handle workplace rudeness.

    Over the past 40 years, China has helped more than 700 million rural residents out of being poor, and the poverty rate -- the proportion of people living below the Chinese poverty line -- had fallen among the rural population from 97.5 percent in 1978 to 3.1 percent at the end of 2017, official figures shows. China's achievements in poverty alleviation (扶贫) made the world look at China with admiration.

    "For me, it is unbelievable that over 40 years, that is, over the course of one working lifetime, China has gone from one of the poorest countries in the world to one that is about to eliminate(消除) absolute poverty," said Craig Allen, president of the US-China Business Council.

    Varaprasad Sekhar Dolla, a professor of Chinese studies at India's Jawaharlal Nehru University, also spoke highly of China's achievements in poverty reduction. "If global poverty came down greatly in the last three or four decades, it's partly because of the Chinese contribution to reducing poverty within its own national boundaries," said the Indian scholar.

    In the eyes of Khairy Tourk, a professor of economics with the Stuart School of Business at the Illinois Institute of Technology in Chicago, "many countries look up to China to learn from its experience." "The Chinese experience is based on building a modern infrastructure (基础设施) and then on setting up special economic zones that would help underdeveloped countries to become more industrial," he added.

    In the government work report delivered at the opening of the annual NPC session (全国人大会议) on March 5, China promises to reduce its population of rural poor by over 10 million this year.