Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.

    Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting（收缩）and pumping blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.

    Sarah Garfinkel at the Brighton and Sussex Medical School said: “Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart.”

    The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, “The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed. Thus our hearts can also affect what we see and what we don't see and guide whether we see fear.”

    To further understand this relationship, the scientists also used a brain scanner（扫描仪）to show how the brain influences the way the heart changes a person's feeling of fear.

    “We have found an important mechanism by which the heart and brain ‘speak' to each other to change our feelings and reduce fear,” Dr Garfinkel said.

    “We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders, and also for those who may be suffering from serious stress disorder.”

                                                    5 Ways to Get Work Done

    As the day draws to a close,are you having trouble finishing your work? You don't need to end up with a sense of failure.In the hours left,the following ways can help you get things done to have a sense of achievement.

⒈Trick yourself.

    {#blank#}1{#/blank#}So,try this: add something to your to-do-list that takes only 30 seconds to finish.Feeling a bit inspired? Then use as short a deadline to deal with another.Or focus on something by giving yourself only five minutes,and then work as long as you can.

⒉Take lots of breaks.

    Find yourself checking your cellphone or reading the Internet?{#blank#}2{#/blank#}Have some breaks,and you'll be able to face your work again with delight.

⒊Use rewards.

    One-hundred more words on this report,and you can have a cup of coffee.One more phone call,and you can check your personal email.{#blank#}3{#/blank#}

⒋{#blank#}4{#/blank#}

    Most of us spend too much of our day sitting.It's bad for our health and bad for our concentration.Take a walk or do some jumping in a free meeting room—anything to get you refreshed and your brain working again.

⒌Work as a team.

    When you have a big project deadline coming up,you can even keep a meeting room and work in the same place.{#blank#}5{#/blank#},but also you'll feel more connected to your co-workers while doing it.

A.Get physical exercise

B.Don't feel guilty

C.Do things energetically

D.Not only will you get more done

E.Rewards are wonderful motivators

F.Endless work makes us busy and tired every day

G.A feeling of having made progress will inspire you

    No personal success, achievement, or goal, can be realized without self-discipline.{#blank#}1{#/blank#} It is the ability to control one's impulses, emotions, desires and behavior. To possess it is to make the decisions, take the actions, and carry out your plan regardless of the obstacles, discomfort, or difficulties, that may come your way.

    How to develop self-discipline? We'll explore it together.

    Start with baby steps. No process takes place overnight.{#blank#}2{#/blank#}So, begin by making the decision to go forward and learning what it takes to get there.

     Learn what motivates you and what your bad triggers are.{#blank#}3{#/blank#} Sometimes it is very difficult to fight off urges, so know the areas where your resistance is low and how to avoid those situations. Remove the temptations and surround yourself with encouraging items such as motivating slogans and pictures of what you want to achieve.

    Make certain behaviors a routine. Once you have decided what's important to you and which goals to strive for, establish a daily routine that will help you achieve them.{#blank#}4{#/blank#}They can put you in a negative frame of mind and hinder（阻碍）your self-discipline. A poor attitude can also be a bad habit.

    {#blank#}5{#/blank#} Michael Jordan has always maintained that his greatness as a basketball player came as much from his willingness to work hard at this craft, as it did his craft, as it did his talent. It was his desire through discipline and focus that made him one of the best basketball players ever. If it worked for him, it could certainly work for the rest of us.

A. What is self-discipline?

B. Engage in sports activities.

C. Get inspiration from those you admire.

D. You can begin by learning about yourself?

E. If you try to do too much at once, you could injure yourself and have a seatback.

F. Meanwhile, get rid of some of your bad, self-defeating habits, whatever they may be.

G. It does mean learning how to focus your mind and energies on your goals until they are accomplished.

    A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces(熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.

    The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.

    After the explosion, gravity pulls in what's left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so solid that a teaspoon of matter from it weighs billion of pounds.

    The more the star shrinks(收缩), the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!

    That's what we know about black holes. What we don't know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.

    But if the black hole doesn't keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world. They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a "white hole" in a different universe. As the black hole swallows(吞噬) light, the white hole shines brightly--somewhere else. But where? A different place, perhaps, or a different time--many years in the past or future.

    Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed(挤压). So far the time being, black hole must remain a mystery.

    Black holes are a mystery--but that hasn't stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth's energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste--a sort of huge waste disposal(处理) in the sky!

    For college graduates, it is of vital importance to write application letters well. {#blank#}1{#/blank#}. It should state clearly the job you want, and should tell what you have done. It should be simple, human, personal and brief without leaving out any necessary facts. In writing a letter of application, keep in mind that the things a possible employer is most likely to want to know about are your qualifications, your achievements and your aims.{#blank#}2{#/blank#} If the first few sentences fail to win the reader's attention, the rest of the letter may not be continued at all. Try to key your opening remarks to the needs or interests of the employer not to your own needs or desires. For example, instead of beginning with "I saw your advertisement in today's newspaper", you might say "I have made a careful study of your advertising during the past six months "or" I have made a survey in my neighborhood to find out how many housewives use your product and why they like it."

    {#blank#}3{#/blank#}. Be clear about the kind of job for which you are now applying. College graduates looking for their first positions often ask what they can provide in a letter and what if employers want experience  which, naturally, no beginner has.{#blank#}4{#/blank#}

    It is important to write a good strong closing for your letter, Make a specific request for an interview or give the possible employer something definite to do or expect. {#blank#}5{#/blank#} That makes it easier for a possible employer to get in touch with you.

A. Try to avoid writing in general

B. Don't be afraid of being a new hand

C. Here are a few suggestions for you to prepare yourself better for your interview

D. An excellent idea is to enclose a stamped, self-addressed envelope with your letter

E. The purpose of a letter of application is to help you to"sell"yourself

F. The answer is that everything you have ever done is experience

G. The opening paragraph is perhaps the most important

On an autumn afternoon, a remote sheep farm in southern Greenland is quiet. The silence is abruptly broken when dozens of sheep come thundering across the hills overlooking the farm. Walking after them are Lars Nielsen and his 37-year-old son Kunuk Nielsen.

The Nielsen family has owned and run the farm since 1972. Kunuk says the summers now are longer than when he was a child and that drought has become a problem. The fields are not so green as those in the old days. He has to buy hay (草料) from European countries.

The effects of a warming climate are obvious on the land. While he intends to struggle on, his older brother Pilu has chosen a different path.

Pilu, 40, lives in Qaqortoq in the south of Greenland -- a town of about 3,000 people. Ten years ago, he got his helicopter pilot's license and is now part owner of a small company called Sermeq Helicopters. It caters to construction and telecommunication workers and an increasing number of foreign tourists.

Pilu says he loves his family's sheep farm. But he saw that warming temperatures were making remote areas of Greenland more accessible and wanted to look for other opportunities. His company's most popular tours include a visit to Greenland's glaciers.

The warming temperatures are also affecting traditional ways of life, particularly hunting. The sea ice is changing; it's becoming less so that hunting on ice becomes more difficult. When there's no sea ice, it's difficult to use dog sledges (雪橇), and the whole culture around having dogs and dog sledges and doing traditional hunting on the ice is sort of diminishing.

Besides, many Greenlanders, like Pilu, are leaving the countryside for towns and the capital city Nuuk, where opportunities are greater. A report found that Nuuk's share of Greenland's population grew from 17.2% in 1977 to 29.2% in 2014. If there were enough houses in Nuuk, the share would even be bigger.