When you go to the doctor, you like to come away with a prescription．It makes you feel better to know you will get some medicine. But the doctor knows that medicine is not always needed. Sometimes all a sick person needs is some reassurance that all will be well. In such cases the doctor may prescribe a placebo.

    A placebo is a sugar pill, a harmless shot, or ail empty capsule. Even though they have no medicine in them, these things seem to make people well. The patient thinks it is medicine and begins to get better. How does this happen?

    The study of the placebo opens up new knowledge about the way the human body can heal itself. It is as if there was a doctor in each of us. The doctor will heal the body for us if we let it. But it is not yet known just how the placebo works to heal the body. Some people say it works because the human mind fools itself. These people say that if the mind is fooled into thinking it got medicine, then it will act as if it did, and the body will feel better.

    Placebos do not always work. The success of this treatment seems to rest a lot with the relationship between the patient and the doctor. If the patient has a lot of trust in the doctor and if the doctor really wants to help the patient, then the placebo is more likely to work. So in a way, the doctor is the most powerful placebo of all.

    A placebo can also have bad effects. If patients expect a bad reaction to medicine, then they will also show a bad reaction to the placebo. This would seem to show that a lot of how you react to medicine is in your mind rather than in your body. Some doctors still think that if the placebo can have bad effects it should never be used. They think there is still not enough known about it.

    The strange power of the placebo does seem to suggest that the human mind is stronger than we think it is. There are people who say you can heal your body by using your mind. And the interesting thing is that even people who swear this is not possible have been healed by a placebo．

    He met her at a party. She was outstanding; many guys were after her, but nobody paid any attention to him. After the party, he invited her for coffee. She was surprised, so as not to appear rude, she went along.

    As they sat in a nice coffee shop, he was too nervous to say anything and she felt uncomfortable. Suddenly, he asked the waiter, “Could you please give me some salt? I'd like to put it in my coffee."

    They stared at him. He turned red, but when the salt came, he put it in his coffee and drank. Curious, she asked, "Why salt with coffee?" He explained, "When I was a little boy, I lived near the sea. I liked playing on the sea. I could feel it salty, like salty coffee. Now every time I drink it, I think of my childhood and my hometown. I miss it and my parents, who are still there."

    She was deeply moved. A man who can admit that he's homesick must love his home and care about his family. He must be responsible. She talked too, about her faraway hometown, her childhood, her family. That was the start to their love story.

    They continued to date. She found that he met all her requirements. He was tolerant, kind, warm and careful. And to think she would have missed the catch if not for the salty coffee! So they married and lived happily together. And every time she made coffee for him, she put in some salt, the way he liked it.

    After 40 years, he passed away and left her a letter which said:

    My dearest, please forgive my life-long lie. Remember the first time we dated? I was so nervous that I asked for salt instead of sugar. It was hard for me to ask for a change, so I just went ahead. I never thought that we would hit it off. Many times, I tried to tell you the truth, but I was afraid that it would ruin everything. Sweetheart, I don't exactly like salty coffee. But as it mattered so much to you, I've learnt to enjoy it. Having you with me was my greatest happiness. If I could live a second time, I hope we can be together again, even if it means that I have to drink salty coffee for the rest of my life.

    A speech is a wonderful opportunity to inform,persuade or entertain.The best speeches often take on a combination of all three of these components（组成部分）.However,before you can go about the writing of a great speech,it is important to set goals.Goals keep you,your speech and your audience focused.

What a goal is

    In the context of a speech,a goal is the purpose of the speech,and what it hopes to accomplish.For example,the goal of a eulogy（颂歌）might be to celebrate the life of a loved one.The goal of a speech at a political gathering would be to inform the crowd about the political position of a candidate and persuade them to vote and campaign for the candidate in question.

    Why a goal is important

    Without a goal,a speech is without direction.The goal informs the structure and content of the speech.For example,if a speech's goal is to convince people that smoking is bad for them,the speech will be structured with persuasive arguments to back up the goal.A speech with a goal of informing audience will keep the information fair and factual.

    A goal is incredibly important to the speech's ability to connect with an audience.If the speaker is unaware of the goal of the speech,the audience will likely be unaware as well.This severely reduces the effectiveness of the message.

    Besides informing the audience of the content and structure,a speech's goal drives the speaker to greater heights. If a speaker is asked to speak on a specific subject but never establishes the goal,they won't know where to start in the research,organizing and writing of the speech.

    If you have been charged with delivering a speech,establishing a goal can seem difficult at first.There are several things to take into consideration.First,think about who you will be speaking to.The demographic（人口统计）of your audience will likely determine whether you will be able to persuade them or whether they will be able to sit through（一直坐到……结束）.Second,think about the topic itself.If the topic is something controversial（有争议的）,it may worth your while to consider an informative approach to present both sides of the issue.Finally,consider your resources.A speech with an informative or persuasive goal usually requires a great deal of research,and sometimes takes more time to write.

    In some northern places, the cost of heating our homes boosts. Now millions of people are saving on their heating bills with the EP heater(加热器). With over one million satisfied customers around the world , the new EP heaters saves more heating bills, and runs almost silent.

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    Qingming Festival, which falls on April 5 this year, is known as Tomb-Sweeping Day. The festival always appears about the beginning of April when spring has come. Not only is it a period for commemorating the dead, it is also a time for people to go out and enjoy nature.Where is the best place to go during the festival? Here are 3 popular tourist attractions.

    Jiuzhaigou Valley Scenic and Historic Interest Area

    In the spring, the sight of the Jiuzhaigou Valley is refreshing and touching. The ice and snow begin to melt, water and streams begin to flow and mountain flowers blossom. The air is filled with the fragrance of spring. The soft and lazy spring sun kisses the surface of the lake and new growth.

    Huanghuacheng Great Wall

    Huanghuacheng is the only lakeside part of the Great Wall in Beijing. It is one of the most popular destinations for a Great Wall hiking tour. It is a hit because of the "train for spring", namely a train that travels through fields full of cherry blossoms.It is extremely romantic to take this train in spring with someone you love.

    Mount Huangshan

    Of all the notable mountains in China, Mount Huangshan is probably the most famous and is found in the southern part of East China's Anhui province. It is known for its breathtaking natural scenery.In the spring, Mount Huangshan is fresh, tender and full of wild flowers, and the sound of birdsong also is pleasant in the quietness

    Hawking died early Wednesday at his home in England at the age of 76. Throughout his career as one of the world's most recognizable cosmic(宇宙的) thinkers, he regularly threw himself into pop culture's comedic ring with cameos(客串)on programs such as The Simpsons and Late Night with Conan O'Brien.

    These appearances defined(使明确) Hawking's personal life as much as his universe-shaking theoretical work. Humor, however, was not just one side of his personality, but a key to overcoming the disease he struggled against since 1963.

    "Keeping an active mind has been vital to my survival, ashas been maintaining a sense of humor," Hawking said in a 2013 documentary. "I am probably better known for my appearances on The Simpsons and on The Big Bang Theory than I am for my scientific discoveries."

    At 21, Hawking was diagnosed with a condition similar to amyotrophic lateral sclerosis(肌萎缩性侧索硬化症), also known as Lou Gehrig's disease. According to the ALS Association, "Half of all people affected with ALS live at most three or more years after diagnosis. Twenty percent live five years or more; only ten percent will live more than ten years."

    The disease would eventually shut down Hawking's motor functions, making him speechless and unable to move without a wheelchair. Doctors initially(最初) said he would be dead in two years. His condition, however, proved to be a rare slow-acting version.

    But Hawking fought through his worse physical state, rising to a position as a celebrated professor of mathematical at the University of Cambridge and altering the popular conception of physics with his 1988 bestseller, A Brief History of Time.

    "When I turned 21, my expectations were reduced to zero," he said in a TV show. He added, "It was important that I came to appreciate what I did have. It's also important not become angry, no matter how difficult life is, because you can lose all hope if you can't laugh at yourself and at life in general."