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    12．It could be inferred from the passage that . A．the pill has been developed and will be more and more common B．the pill has helped soldiers forget bad experiences during the war . C．The pill is being tested on some people by some researchers . D．The pill will be forbidden because people have different opinions of it . D I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place . For as long as I can remember , I’ve loved learning new things and solving problems . So when I sat down at a computer for the first time in seventh grade , I was hooked. It was a clunky old Teletype machine and it could barely do anything compared to the computers we have today . But it changed my life . When my friend Paul Allen and I started Microsoft 30 years ago , we had a vision of “a computer on every desk and in every home, which probably sounded a little too optimistic at a time when most computers were the size of refrigerators . But we believed that personal computers would change the world . And they have . And after 30 years , I’m still as inspired by computers as I was back in seventh grade . I believe that computers are the most incredible tool we can use to feed our curiosity and inventiveness-to help us solve problems that event he smartest people couldn’t solve on their own . Computers have transformed how we learn , giving kids everywhere a window into all of the world’s knowledge . They’re helping us build communities around the things we care about and to stay close to the people who are important to us , no matter where they are . Like my friend Warren Buffett , I feel particularly lucky to do something every day that I love to do . He calls it “tap-dancing to work. My job at Microsoft is as challenging as ever , but what makes me “tap-dance to work’ is when we show people something new , like a computer that can recognize your handwriting or your speech , or one that can store a lifetime’s worth of photos , and they say , “I didn’t know you could do that with a PC! But for all the cool things that a person can do with a PC, there are lots of other ways we can put our creativity and intelligence to work to improve our world . There are still far too many people in the world whose most basic needs go unmet . Every years , for example , millions of people die from diseases that are easy to prevent or treat in the developed world . I believe that my own good fortune brings with it a responsibility to give back to the world . My wife , Melinda , and I have committed to improving health and education in a way that can help as many people as possible . As a father , I believe that the death of a child in Africa is no less poignant or tragic than the death of a child anywhere else , and that it doesn’t take much to make an immense difference in these children’s lives. I’m still very much an optimist , and I believe that progress on even the world’s toughest problems is possible-and it’s happening every day . We’re seeing new drugs for deadly diseases , new diagnostic tools , and new attention paid to the health problems in the developing world . I’m excited by the possibilities I see for medicine , for education and , of course , for technology . And believe that through our natural inventiveness , creativity and willingness to solve tough problems , we’re going to make some amazing achievements in all these areas in my lifetime . 【查看更多】

     

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    Not all memories are sweet. Some people spend all their lives trying to forget bad experiences .Violence and traffic accidents can leave people with terrible physical and emotional scars . Often they relive (重新体验) these experiences in nightmares .

    Now American researchers think they are close to developing a pill ,which will help people forget bad memories . The pill is designed to be taken immediately after a frightening experience . They hope it might reduce , or possible erase (抹去) the effect of painful memories .

    In November, experts tested a drug on people in the US and France. The drug stops the body releasing chemicals that fix memories in the brain . So far the research has suggested that only the emotional effects of memories may be reduced , not that the memories are eased .

    The research has caused a great deal of argument . Some think it is a bad idea , while others support it . Supporters say it could lead to pills that prevent or treat soldiers’ troubling memories after war .

    They say that there are many people who suffer from terrible memories . “Some memories can ruin people’s lives . They come back to you when you don’t want to have them in a daydream or nightmare . They usually come with very painful emotions ,” said Roger Pitman , a professor of psychiatry (精神病学) at Harvard Medical School. “This could relieve a lot of that suffering .”

    But those who are against the research say that changing memories is very dangerous because memories give us our identity (物质). They also help us all avoid the mistakes of the past . “All of us can think of bad events in our lives that were horrible at the time but make us who we are . I’m not sure we’d want to wipe those memories out.” said Rebecca Dresser , a medical ethicist (伦理学家).

    Some people fear that although the drug would first be used in only very serious cases , it would become more and more common . “People always have the ability to misuse science,” said Joeph Le Doux, a New York University memory researcher . “All we want to do is help people have better control of memories .”

    What’s the main idea of the text ?

          A．People often suffer from bad memories .

           B．American researchers are trying to develop a pill .

           C．Forget bad memories , and be happy .

           D．The research has cause a heated argument .

    The underlined word “it” in paragraph 4 refers to “       ”.

           A．the new drug          B．the research into the drug

           C．the memory            D．the chemical in the drug  

    Which of the following is not the opinion of the supporters ?

           A．The pill can erase all the memories in the past

           B．Some memories can ruin people’s lives. The pill can relieve emotional suffering .

           C．The pill can also help many other types of people who suffer from terrible memories .

           D．The pill can also prevent or treat troubling memories in soldiers after war

    Which of the following is not the opinion of the opponents (反对者)?

           A．Our memories give us our identity .

           B．The memories help humanity avoid mistake of the past .

           C．The drug should be used in only very serious cases .

           D．People may not be sure whether they want to wipe the memories out .

    It could be inferred from the passage that         .

           A．the pill has been developed and will be more and more common

           B．the pill has helped soldiers forget bad experiences during the war .

           C．The pill is being tested on some people by some researchers .

           D．The pill will be forbidden because people have different opinions of it .

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