Tu Youyou, an 84-year-old female（女性）scientist, became the first Chinese to win a Nobel Prize in science on Oct 5. Before that, she ever won the 2011 Lasker Award for finding out artemisinin (Qinghaosu), which saved millions of lives. She was grateful（感激的）for the Lasker prize, but said, “It is just a scientist' duty. I will go on fighting for the health of all humans.”

    Tu kept her work in the 1960s and 1970s. In that age, Malaria (疟疾) could took away people's health. Scientists all over the world had already tried over 240, 000 times but failed. Tu Youyou, a member of the Academy of Traditional Chinese Medicine, Beijing, began to study Chinese herbs.

    Before 2011, people didn't know Tu very much. Many friends played jokes with her “the Professor of Three None's” : no degree（学位）, no study experience abroad, not a member of any Chinese national colleges. But she is hard-working. She read a lot of traditional Chinese medicine books and did a lot of researches on the disease.

    In February, 2012, Tu was named National Outstanding Females (One of the Ten) Tu is now a model of Chinese medical workers.

    The number of insects in the world has fallen by 45 percent in the past 35 years. Scientists say this could be dangerous for humans. A report on insect numbers has been published in the journal "Science". It says the human population has doubled since 1980 while the number of insects has nearly halved. One of the biggest reasons for this loss of insects is the act of cutting down trees or burning them. Many of the places where insects live are disappearing because of new cities and land being used for farming. Another reason is global warming. Scientists say that in the UK, the number of butterflies, bees and wasps(黄蜂) has fallen by up to 60 percent. Many countries are worried about the disappearance of them.

    Scientists say the decline in insect populations will lead to many problems for humans. One of the biggest dangers is that there will be fewer insects to pollinate flowers. This means that farmers will have problems growing food. The lead author of the report, Professor Rodolfo Dirzo, said falling numbers of insects could also lead to more diseases in humans. He said rats and mice would have less food to eat so they will move to cities and bring diseases with them. Dr. Ben from London University said we needed to stop more insects from dying. He added that scientists must understand what species(物种) are winning and losing in the fight for survival. He said this knowledge would help us to protect the "helpful" insects.

    On April 8th, 2013, the world felt sorry because of the death of former British Prime Minister, Margaret Thatcher, who died at the age of 87. Besides being the country's longest leader (1979-1990) in the 20th century, she was the first woman to lead Britain. She worked hard and did well in her work, so she was called" Iron Lady".

    Whatever you think of Margaret Thatcher, the thing everyone does agree on is that she was a woman with great decisions. When she took over Britain in 1979, she led a country that was in economic trouble. She faced a lot of problems because of the poor economic position.

    In order to make the country become strong again, Ms. Thatcher had to make some hard and special decisions like raising interest rates and even taxes at a time when most British people were living a hard life. In this way she led Britain to run out of economic troubles.

    Early in her second term, just as things were looking a little better, she faced another problem — a strike by the British Miners Union. Once again, the Iron Lady stood her ground to stop the longest strike in the country's history.

    In 1982, Argentina said that they had owned the Falkland Islands since the 19th century. Britain, however, considered the islands to be one of their overseas dependent territories (领土). Margaret Thatcher tried to talk about the problem with Argentines. But Argentines didn't agree with her ideas, so Ms. Thatcher did what any strong leader would do — send in the British Army. It took 74 days, and on 14th June 1982, the Argentine army finally failed and Britain controlled the Falkland Islands again.

    When Ms. Thatcher resigned in 1990, she left behind a country that was very strong. Unluckily, during the last few years of her life, something was wrong with her mind. She hardly remembered anything that was happening around her and even what she had done during her wonderful lifetime.

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    In Kansas City, Missouri, a computer helps firefighters. The computer, which works very fast, has information about all the 350, 000 street addresses in the city. Within two or three seconds after a call is received, the computer provides necessary information for the firefighters. The information is then sent to them by radio from the computer centre in the City Hall. The exact place of the burning building and its size, type and any other details are clear to them.

    The Kansas City computer system also has a medical record of each of the city's 900 firefighters. This kind of information is especially useful when a firefighter is injured. With the information, doctors at hospital can treat the injured firefighters more quickly and easily.

    The firefighters themselves greatly appreciate the computer's help. They know about possible danger ahead of them and can prepare for it. Many times the computer information helps to save lives and property (财产). Sometimes the lives are those of firefighters themselves.

    Mike Horan, a firefighter captain, says, "I feel as if the computer is ready to help me if I get hurt."

    A recent study followed nearly 1,500 old people for 10 years. It found that those who had a large network of friends lived longer than those with fewer friends by more than 20%.This study isn't the only one that shows friendships can be good for our health.

    Lots of research has shown social support and good health are connected. One recent study focuses on people with ovarian cancer. It says those with lots of social support had much lower levels of a protein connected to more dangerous cancers. This made their treatments (治疗) work better. In another study, women with breast cancer in a support group lived twice as long as those not in a support group. They also had much less pain.

    Sheldon Cohen, a professor at Carnegie Mellon University in Pittsburgh, says strong social support helps people deal with stress. "There may be more benefits as well," Cohen says. "Friends encourage you to look after yourself better. And people with more friends have higher self­confidence, so they feel they have more control over their lives."

    Other studies show people with fewer friends are likely to die sooner after having a heart attack, compared with people having a strong social network. Having lots of friends may even lower your chance of catching a cold. "People with social support have fewer immune (免疫的) problems and lower levels of stress," says Tasha Howe, who works at Humboldt State University. "We are social animals, and we were born to be in groups," Howe says. "We have always needed others to survive better. It's in our genes." People with a big social group are likely to be more at peace, which leads to better health, Howe says.