Lisa: My best teacher is my geography teacher in 10th grade. Why? Because we did school projects! Back then I wrote about India and never forgot what I had learned. He brought the culture to life by letting me become part of it. He also listened to us and was always ready with a kind word.

David: My best teacher is my high school social studies and history teacher, Thomas Ladenburg. He respected us, though we were just teenagers. His class was never boring because he often asked us to discuss in class. He used his own materials which made the class very interesting.

Henry: My best ever teacher is my biology teacher in high school. I really liked her class. She explained everything very clearly. She also checked our notebooks to make sure we had written down what she said. Now, many years later, I can still remember a large part of the things she taught!

Susan: The best teacher I have ever had is my 10th grade social studies teacher. She was always in a good mood and kept us laughing. She was really young, so she acted like us teenagers, which made learning fun. If we needed to talk to an adult about a problem, we would always come to her because we knew she could help us.

Tom: My favourite teacher is Mr. Yelle. He taught us math, science and music. He spoke to us “at eye level”, and was very patient and kind. We did great projects for the science fairs. Forty years later, I still remember his lessons very well. By the way, though he was called Mr Yelle, he didn't yell(喊叫).

    Now, I've talked much about education. I've talked about teachers' responsibility for inspiring students and pushing you to learn. I've talked about your parents' responsibility for making sure you stay on track, and you get your homework done, and don't spend every waking hour in front of the TV .I've talked a lot about your government's responsibility for setting high standards.

    But at the end of the day, we can have the most dedicated teachers, the most supportive parents, the best schools in the world-and none of it will make a difference, none of it will matter unless all of you fulfill your responsibilities, unless you show up to those schools, unless you pay attention to those teachers, unless you listen to your parents and grandparents and other adults and put in the hard work it takes to succeed. That's what I want to focus on today: the responsibility each of you has for your education.

    I want to start with the responsibility you have to yourself. Every single one of you has something that you're good at. Every single one of you has something to offer. And you have a responsibility to yourself to discover what that is. That's the opportunity an education can provide.

    And no matter what you want to do with your life, I guarantee that you'll need an education to do it. You want to be a doctor, or a teacher, or a police officer? You want to be a nurse or an architect, a lawyer or a member of our military? You're going to need a good education for every single one of those careers. You cannot drop out of school and just drop into a good job. You've got to train for it and work for it and learn for it.

    That's okay. Some of the most successful people in the world are the ones who've had the most failures. J.K. Rowling's who wrote Harry Potter- her first Harry Potter book was rejected 12 times before it was finally published. Michael Jordan was cut from his high school basketball team. He lost hundreds of games and missed thousands of shots during his career. But he once said, “I have failed over and over and over again in my life. And that's why I succeed.”

And even when you're struggling, even when you're discouraged, and you feel like other people have given up on you, don't ever give up on yourself, because when you give up on yourself, you give up on your country.

    Businesses are witnessing a difficult time, which has in turn produced influence on consumers, desire to go green. However, shoppers are still laying stress on environmental concerns.

    Two thirds of customers say that environmental considerations inform their purchases to the same degree as they did a year ago, while more than a quarter say that they are now even better aware of the environmental effect on what they buy.

    This may help to influence how shops store goods on their shelves. And the companies should still make efforts to become more environmentally friendly. Two out of three people think it is important to buy from environmentally responsible companies, with about one in seven saying that they had even decided to take their custom elsewhere if they felt a company's environmental reputation was not good enough.

Harry Morrison, chief executive (主管) of the Carbon Trust, sympathizes: "I understand this situation where survival is very important now. But from environmental considerations, the clock is ticking—we don't have much time. In addition, cutting carbon has an immediate effect as costs drop and a medium-term benefit for the brand."

    Larger companies have an extra motivation to look at reducing their carbon footprint, as new rules next year will require businesses to buy carbon allowances to make up for their emissions (排放). Those that have taken early action will have a head start. More than two thirds of consumers are not clear about which companies are environmentally responsible. This suggests that firms that are able to relay clearly their message to the public will be in a pole position to attract shoppers.

The Carbon Trust believes that it can help by informing customers about the good work companies are doing. "When companies are granted (授予) the standard, they can use a logo (标识) in all their marketing which makes it clear that they are working towards cutting emissions," Mr. Morrison said.

    If you live in a big city, there are many thing to drive you crazy on your daily route, and it's not just overcrowded subway trains.

    Vicky Zhao is a mainlander working in Hong Kong. For her, one thing she can't put up with is people standing on the wrong side of the escalator(自动扶梯) in subway stations. "Escalators help us move faster and save time. It isn't a place to rest," the 24-year-old says. "I often see tourists block the way with their suitcases or chatting on the escalators during rush hours. It annoys me to no end."

    Admitting she is not the patient type, Zhao says things are much better in Hong Kong than in cities on the mainland where "stand right, walk left" signs are often ignored.

    The logic behind the "stand right, walk left" escalator etiquette(礼仪) seems obvious. Even though you may want to catch your breath while you're transported up or down, you should still consider others and leave enough space for people in a hurry, so that they can run and catch the train.

    Many cities' escalators, including London's and Beijing's, use the "stand right, walk left" system to speed up the flow of people. (Australia is an exception and you should stand on the left side instead.) But some cities discourage people from moving on escalators out of safety reasons. In Hong Kong's subway stations there are regular announcements asking people to "stand still" on escalators. Even so, most people in this fast-paced city observe the "stand right, walk left" etiquette.

    But the people who stand on escalators defend themselves by telling the walkers not to be so impatient. The BBC quotes one stander as saying: "If the person is in such a rush, why not just take the stairs? Even when the escalator is packed and there's nowhere to move, I see these same people complaining about not being able to pass."

    Whatever the escalator etiquette is in the place you live or visit, do what most people are doing and always be mindful of others: leave enough space between each other, don't stay at the end of the escalator, and if someone is blocking your way, a simple "excuse me" is enough.

    Fire fighting is a serious matter. Knowing what to do during a fire can save people's lives. It is important to know the ways you can use and show them to everyone else in the family, such as stairways and emergency exits, but not elevators.

    From the lower floors of buildings, escape through windows is possible. Learn the best way to get out from a window with the least chance of serious injury.

    The second floor window is usually not very high from the ground. An average person, hanging by the fingertips will have a drop of about 6 feet to the ground. It is about the height of an average man. Of course, it is safer to jump a short way down than to stay in a burning building.

    Windows are also useful when you are waiting for help. Be sure to keep the door closed before opening the window. Otherwise, smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked(漏)into the room.

    On the second or third floor, the best windows for escape are those which open onto a roof. From the roof a person can drop to the ground more safely. Dropping onto cement might end in injury. Bushes and trees can help you to have a soft landing.

Walking has been considered as one kind of rewarding exercise. For many people, daily walking offers massive and long-term physical and mental benefits. {#blank#}1{#/blank#} A Stanford University study found that participants were more creative when walking as opposed to sitting. 

{#blank#}2{#/blank#} You've probably heard the phrase "exercise your creativity". Our creative mindset is stirred up by physical movement, which is exactly why walking with your dog, a friend, or alone feeds creative thinking. 

But the scenery is almost as important as the sweat. Just by going outside, you are stepping out of your habitual surroundings and your comfort zone, which is necessary if you want to open your mind to new possibilities. You can walk through a tree-filled neighborhood. {#blank#}3{#/blank#} Even when you walk down a busy street, you can't help but get distracted by the sweet smells from a food cart or the child pointing to a building you haven't even noticed before. 

Walking outside develops our ability to collect new ideas and take in new sights, sounds, smells, and flavors. Shinrin-yoku, a common form of relaxation in Japan, suggests that being in the forest and walking among the trees there can lower your stress levels. {#blank#}4{#/blank#} Research has shown that getting close to nature around your neighborhood or taking a break from multimedia increases performance on a creative problem-solving task. 

So instead of setting a fitness goal, why not set a creativity goal that starts with walking outdoors? {#blank#}5{#/blank#} For example, you can turn off your phone and give yourself the chance to be present in the world, to hear conversations and natural sounds, and to notice the way people move and the way the sun reflects in a lake. 

Walk not just for exercise. Walk for wonder.

A.Unfortunately, you often fail to do it.

B.Expose yourself more to your surroundings.

C.The movement during walking is obviously key.

D.Without enough energy, you cannot wonder or create.

E.But to receive the benefits, you do not have to live in a forest.

F.This habit, however, not only benefits well-being but also contributes to innovation.

G.Wandering around a park and observing people relaxing or birds singing is also a choice.