As the father of a student, I have experienced first hand what a great teacher is. My son was in the 4th grade last year, and he had a teacher called Miss Green. I believe that when he is an adult he will surely look back on her as the best teacher he has ever had.

    My son has attention deficit disorder(注意力缺损症) that makes it a little more difficult for him to learn.She was able to change her teaching methods for him so that he could keep up with the rest of the class. As a result, he got straight As on many subjects. She regarded her class as a family and they even had their own class song. She would often have them sing it to encourage them and develop a team spirit for them. When she saw that they were no longer listening carefully to what she was teaching, she would have them close their textbooks, stand up all around the room and throw around a small football. This helped them clear their minds and then focus on the lesson again.Besides, she was quick to reply to any phone calls or emails from us and got rid of our worries about children quickly.

    When my son went to the 5th grade this year, we happened to pass her classroom.When she saw my son, her face lit up and she came out and hugged him.She generally loves all of the children in her classroom and that love really shows.I can only pray that my son will continue to get teachers just like her for the rest of his school years.

    People are being lured(引诱) onto Facebook with the promise of a fun, free service without realizing they're paying for it by giving up large amounts of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

    Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Facebook because people don't really know what their personal data is worth.

    The biggest problem, however, is that the company keeps changing the rules. Early on, you keep everything private. That was the great thing about Facebook—you could create your own little private network. Last year, the company changed its privacy rules so that many things—your city, your photo, your friends' names—were set, by default(默认) to be shared with everyone on the Internet.

    According to Facebook's vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information, they have a “less satisfying experience”.

    Some critics think this is more about Facebook looking to make more money. Its original business model, which involved selling ads and putting them at the side of the page, totally failed. Who wants to look at ads when they're online connecting with their friends?

    The privacy issue has already landed Facebook in hot water in Washington. In April, Senator(议员) Charles Schumer called on Facebook to change its privacy policy. He also urged the Federal Trade Commission to set principles for social-networking sites. “I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them，” Schrage admits.

    I suspect that whatever Facebook has done so far to invade our privacy is only the beginning, which is why I'm considering deactivating (撤销) my account. Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't know. That's too high a price to pay.

    My wife and I spent two weeks in London last year. We went there in the autumn. We think it is the best season to visit England. The weather is usually good and there aren't too many tourists in October.

    We stayed in a small hotel in the West End. It was convenient as we did most of our sightseeing on foot. Taxis were too expensive, we couldn't understand the bus routes, and my wife didn't like traveling under the ground. She said it made her feel sick.

     We went to look at the places which all tourists visit. We saw Buckingham Palace and the National Gallery. We went shopping in Oxford Street and spent too much money. What we liked most, though, was going to the theatre. We didn't have the chance to see such wonderful plays at home. A lot of people say English food is bad. We didn't think so. It is true that most of the restaurants are French or Italian or Chinese, but we had some very good meals.

    In fact, we enjoyed our holiday so much that we have already booked again for this year. We are going to take our umbrellas, though. I'm sure we'll need them sometimes.

    I stepped on the red carpet and smiled as the cameras rushed up to take pictures. I slowly walked into the large hall of my first Hollywood premiere(首映). I had designed the special effects for the hottest movie on the market. Later, a friend of mine came with a big smile on her face. “I'm sure you have never thought that you would be here,” she said excitedly. I calmly smiled back in return.

    Having never had great opportunities, I've worked long and hard to create a bright future. Though I grew up in a poor family, I never doubted that my future goals would be connected with computers. In middle school I became the producer of a daily news television show.

    My future goal became even more possible when a new high school in my area held a technology program created for students interested in technology related jobs. Through the program I was able to learn about computer design and gain experience through a part-time job with a local computer company. Whenever a new movie came out, I would find out the company which created the special effects for the movie. At the same time, I researched job positions on the Internet. The companies on the Internet suggested universities and degrees on their websites. I planned on studying Computer Science.

    Though I didn't give up my dreams, I continued to pay my attention to daily events. I took part in a large number of activities to broaden my view on life. I worked hard in school to develop my mind. I communicated with people who could give me advice about any problem I might meet along the way. And now, after years of preparation, my hard work is paying off. I know I have succeeded because I put my goals into action.

    Being crazy about perfection(完美) among young people has risen by more than 30 per-cent over the last three decades, a study has found.

    Many of them believe that their environment is very demanding and that others judge them strictly, according to analysis of data from more than 40,000 British, Canadian and American university students from 1989 t0 2018.

    The research, carried out by the University of Bath and York St John University, found that the extent to which young people attach an irrational importance on being perfect, hold unrealistic expectations of themselves and are highly self-critical has increased by 10 percent when compared to previous generations. The authors suggested their findings point to the impact of three decades of neoliberalism (新自由主义) forcing young people to compete against one another.

    Lead author Dr Thomas Curran from the University of Bath's Department for Health said he hoped organizations responsible for guarding the welfare of young people, such as schools, universities, and policymakers who shape the environments in which these organizations operate, would resist the promotion of competitiveness at the expense of young people's psycho-logical health.

    He said, "Rising rates of perfectionism highlighted in this study correspond to three decades of neoliberalism, which has forced young people to compete against each other in an in-creasingly demanding social and economic environment." The study also found the extent to which young people impose (迫使) unrealistic standards on those around them and evaluate others critically has increased by 16 percent.

    The researches defined perfectionism as a combination of extremely high personal standards and overly harsh self-criticism, leading to psychological difficulties.

    Co-author Dr Andrew Hill of York St John University added, "The increase in mental health difficulties among young people makes for a setting for our findings. The higher level of perfectionism may be a key contributing factor to such difficulties. Young people are trying to find ways to cope with increasing demands being placed on them and they are responding by becoming more perfect towards themselves and others."

    All of us know that smoking does harm to our health. But do you think everything will be OK as long as you quit smoking?

    Unfortunately, the answer is NO.

    New research has found that even if you give up smoking, the damage it has done to your genes (基因) will stay there for a much longer time. In the research, a team of US scientists studied the blood of 16,000 people. Among them, some were smokers, some used to smoke, and the rest were non-smokers. Scientists compared their genes and found that more than 7, 000 genes of smokers had changed—a number that is one-third of known human genes. According to NBC News, both heart disease and cancer are caused by genetic changes. Some people may have had the changes when they were born, but most people get them in their daily lives while doing things like smoking. When you stop smoking, a lot of these genes will return to normal within five years. This means your body is trying to heal (治愈) itself of the harmful effects of smoking. But the changes in some of the genes stay for longer. They can stay for as long as 30 years, It's almost like leaving a footprint on wet cement (水泥)—it will always be there, even when you've walked away and when the cement becomes dry. Although the study results may make people unhappy, there is a bright side: the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer risks.