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    Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word “diet” everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

    Diet products significantly weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption（摄入） of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the scale（秤）instead. All we have to do is to swallow or recognize the word “diet” in food labels(标签).

    On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without knowing that we don't have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance（抵制and struggle.

    The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients(营养成分). Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemical that go into diet products are potentially dangerous.

    Now that we know the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.

    My roommate Lily was well organized, while I was not. Each of her objects had its place, but mine always hid somewhere. She even labeled (贴标签) everything. I always looked for everything. Over time, Lily got neater and I got messier. She would push my dirty clothing over, and I would lay my books on her tidy desk. We both got tired of each other.

    War broke out one evening. Lily came into the room. Soon, I heard her screaming. “Take your shoes away! Why under my bed!” Deafened, I saw my shoes flying at me. I jumped to my feet and started yelling. She yelled back louder.

    The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Lily answered it. From her end of the conversation, I could tell right away her grandma was seriously ill. When she hung up, she quickly crawled (爬) under her covers, sobbing. Obviously, that was something she should not go through alone. All of a sudden, a warm feeling of sympathy rose up in my heart.

    Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even on her side. I got so into my work that I even didn't notice Lily had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. I looked up into her eyes. She smiled at me, “Thanks.”

    Lily and I stayed roommates for the rest of the year. We didn't always agree, but we learned 高一阅读理解My roommate Lily was well organized while I was the key to living together: giving in, cleaning up and holding on.

    “Image is everything.” An entire industry has been built upon the concept that image is everything, but an appealing image isn't enough when there's no substance behind it.

    First of all, one should consider how important image is in selling products and services. Advertising agencies have raised the art of creating an image to a state of near perfection. But if the product or service doesn't live up to it, customers will be very dissatisfied. The recent scandal (丑闻) about the Arthur Andersen accounting firm showed that behind that image, it had unfair business practices under the table. Despite the previous positive image, the firm is being accused of criminal actions. Although the image had been nearly perfect, the reality behind the image has led to its downfall.

    Similarly, personal consultants(顾问) can build up a very positive public image for politicians and movie stars in the view of the general commons. But once again, history is filled with examples of both that fell from grace (体面) like the story of the Hollywood actor giving in to the pressures of fame and fortune. With people, just as with products and services, image is certainly important, but without positive substance behind it, failure is close.

    To conclude, it's clear that an appealing image is extremely important to success, whether that image is related to selling a product or service or to the “selling” of a person. But image is only half of the equation(等式). What lies behind that image is every bit as important as the image itself — the person or product must live up to that image or there's little chance for long-term success.

    It is hardly surprising that clothing manufacturers (生产商)follow certain uniform standards for various features(特征)of clothes. What seems strange, however, is that the standard adopted for women is the opposite of the one for men. Take a look at the way your clothes button. Men's clothes tend to button from the right, and women's from the left. Considering most of the world's population—men and women—are right-handed, the men's standard would appear to make more sense for women. So why do women's clothes button from the left?

    History really seems to matter here. Buttons first appeared only on the clothes of the rich in the 17^th century, when rich women were dressed by servants. For the mostly right-handed servants, having women's shirts button from the left would be easier. On the other hand, having men's shirts button from the right made sense, too. Most men dressed themselves, and a sword drawn from the left with the right hand would be less likely to get caught in the shirt.

    Today women are seldom dressed by servants, but buttoning from the left is still the standard for them. Is it interesting? Actually, a standard, once set, resists change. At a time when all women's shirts buttoned from the left, it would have been risky for any single manufacturer to offer women's shirts that buttoned from the right. After all, women had grown so used to shirts which buttoned from the left and would have to develop new habits and skills to switch. Besides, some women might have found it socially awkward to appear in public wearing shirts that buttoned from the right, since anyone who noticed that would believe they were wearing men's shirts.

    Learning to speak English well may be the best thing you can do to improve your life. That's right. If you can communicate in English, you can do the following things:

    Contact (联系) people from all over the world. Talk about your ideas and opinions on Internet discussion groups. Send e-mails to interesting people. Learn about their life and culture.

    Travel more easily. Communicate with people wherever you go—English is spoken in more than 100 countries. Ask directions, have a conversation, or ask for help. Maybe English will save your life some day!

    Push your career forward. If you want a good job in business, technology, or science, get out of that armchair and start learning English now! If you already have a good job, start learning before you lose it! Knowing English will let you do the following things:

    Put “excellent knowledge of English” on your CV (履历). Get your dream job, and earn more money.

    Gain technical knowledge. English is the language of technology, especially high technology like computer science, and medicine. If you're going to read about technology, you'll probably have to do it in English.

    Be a world-class businessman or woman. It's simple. International business is done in English. And all business today is international. So if you want to play, you have to know English—to contact other business people, go to conferences, and read international business newspapers and magazines, ect.

    Become a better scientist. Contact scientists from other countries, go to international conferences, and visit research centers abroad. Learn about new scientific discoveries by reading papers, books, and magazines.

    Use your computer more effectively. Most computer applications are in English, so you will understand them better—and become a better employee.

    Ownership used to be about as straightforward as writing a cheque. If you bought something, you owned it. If it broke, you fixed it. If you no longer wanted it, you sold it or threw it away. In the digital age, however, ownership has become more slippery. Since the coming of smartphones, consumers have been forced to accept that they do not control the software in their devices; they are only licensed to use it. As a digital chain is wrapped ever more tightly around more devices, such as cars and thermostats, who owns and who controls which objects is becoming a problem. Buyers should be aware that some of their most basic property rights are under threat.

    The trend is not always harmful. Manufacturers seeking to restrict what owners do with increasingly complex technology have good reasons to protect their copyright, ensure that their machines do not break down, support environmental standards and prevent hacking. Sometimes companies use their control over a product's software for the owners' benefit. When Hurricane Irma hit Florida this month, Tesla remotely updated the software controlling the batteries of some models to give owners more range to escape the storm.

    But the more digital strings are attached to goods, the more the balance of control leans towards producers and away from owners. That can be inconvenient. Picking a car is hard enough, but harder still if you have to dig up the instructions that tell you how use is limited and what data you must give. If the products are intentionally designed not to last long, it can also be expensive. Already, items from smartphones to washing machines have become extremely hard to fix, meaning that they are thrown away instead of being repaired.

    Privacy is also at risk. Users become terrified when iRobot, a robotic vacuum cleaner, not only cleans the floor but also creates a digital map of the inside of a home that can then be sold to advertisers (though the manufacturer says it has no intention of doing so). Cases like this should remind people how jealously they ought to protect their property rights and control who uses the data that is collected.

    Ownership is not about to go away, but its meaning is changing. This requires careful inspection. Devices, by and large, are sold on the basis that they enable people to do what they want. To the extent they are controlled by somebody else, that freedom is compromised.

    We want our children to succeed, in school and, perhaps even more importantly, in life. But the paradox(悖论) is that our children can only truly succeed if they first learn how to fail. Consider the finding that world-class figure skaters fall over more often in practice than low-level figure skaters. At first sight this seems contradictory. Why are the really good skaters falling over the most?

    The reason is actually quite simple. Top skaters are constantly challenging themselves in practice, attempting jumps that stretch their limitations. This is why they fall over so often, but it is precisely why they learn so fast. Lower-level skaters have a quite different approach. They are always attempting jumps they can already do very easily, remaining within their comfort zone. This is why they don't fall over. In a superficial sense, they look successful, because they are always on their feet. The truth, however, is that by never failing, they never progress.

    What is true of skating is also true of life. James Dyson worked through 5,126 failed prototypes(原型) for his dual cyclone vacuum before coining up with the design that made his fortune. These failures were essential to the pathway of learning. As Dyson put it: “You can't develop new technology unless you test new ideas and learn when things go wrong. Failure is essential to invention.”

    In healthcare, however, things are very different. Clinicians don't like to admit to failure, partly because they have healthy egos(自我)(particularly the senior doctors) and partly because they fear litigation(诉讼). The consequence is that instead of learning from failure, healthcare often covers up failure. The direct consequence is that the same mistakes are repeated. According to the Journal of Patient Safety, 400,000 people die every year in American hospitals alone due to preventable error. Until healthcare learns to respond positively to failure, things will not improve.

    But let us return to children. One of the major mistakes in education in the 1970s was the attempt to equip children with confidence by giving them lots of successes （setting the bar very low）. The consequence was that the ego of kids became bound up with success, and they became unable to take risks and collapsed as soon as they hit a proper challenge.

    We need to flip(翻转) this approach. In a complex world, failure is inevitable. It is those individuals and institutions that have the flexibility to face up to failure, learn the lessons and adapt which eventually excel(突出).

    Gesture is the use of such movements to express thought, emotion, etc. A gesture can be many things. Slamming a book shut shows anger and frustration. Opening a door lor someone shows kindness. Gestures go much beyond small actions.

    My friend once told me a story in high school. One day he met a girl who was on the girls' basketball team. He said hello, gave her a hard handshake and wished her good luck as she had a game later. He came to find out he saved that girl's life. She had planned on committing suicide and by shaking her hand and saying good luck, he made her realize someone really cared about her. I'm not saying all actions are going to change someone else's life that much, but it may make their day better.

    Gestures can be negative too. In my senior year of high school, a guy on my football team was late and was walking down the field to practice. Everyone on the team knows our coach hates it when people are late and walk on the field. He was walking in as if he owned the place and had no care of what his teammates were thinking. His body language had never been good. The other players on the team had never liked him because of his body language.

    Gestures can often say more than a person wants. One day I was mad at my parents for some pointless reason. All day I stayed downstairs. When one of them walked by, I would just stare at the TV or my phone and hope they wouldn't try to start a conversation. When they tried to talk to me, I would give one-word answers. Sitting on the couch and watching TV by myself all day was not my intent but that was what my gestures told my parents.

    One simple gesture can change a person's thoughts, day or maybe even save their lives. If everyone made a nice gesture to someone else every day, our school, town, and world would become a better place. One single act of random kindness at a time or a kind gesture can change the world.

    Earlier this month, the University of Glasgow in Scotland launched a course entitled: The Simpsons Introduce Philosophy（哲学）. The course's aim is to ease students into the typically heavy topic by relating it to the popular cartoon family.

    “The Simpsons is one of the modem world's greatest cultural products, partly because it is so full of philosophy,” John Donaldson, creator of the course, told the BBC. “Aristotle, Kant, Marx, Camus and many other great thinkers' ideas are represented in what is arguably the purest of philosophical forms — the comic cartoon.”

    While this may seem like an unusual way to attract pupils to a traditionally dull topic, this class isn't the first of its kind. In 2009, Liverpool Hope University in the UK began offering a master's degree on the music of world-famous 60's group The Beatles, which still runs today. The following year, the UK's Durham University gave students the chance to enroll on a Harry Potter-themed module, covering contents such as “Gryffindor and Slytherin: prejudice and intolerance in the classroom,” and “muggles and magic”.

    To some, these courses may seem like a waste of a valuable education, but Donaldson believes that packaging certain topics into something more easy to relate to will enhance the learning experience, without distracting（分离）from the main subject. “Firstly, scholars want to be taken seriously by other scholars and ideas like this can be seen as not serious,” he tells iNews. “There are definitely ways to include popular culture into academic subjects that still remains their nature and doesn't take away from the quality of the ideas,”

    Already booked full, Donaldson's Simpsons class isn't meant to be taken as seriously, however. The lecturer says that his one-day course, which will pose philosophical questions around morality, free will, and religion by relating them to scenarios（情节）from The Simpsons, aims to introduce students to his area of expertise greatly while having a bit of fun.

    There is no doubt e-commerce is growing, and it will continue to grow. However, physical stores would not die as a result of the rise of e-commerce, at least not in the near future. The idea that e-commerce is taking over physical stores has already misguided many people. Physical stores are far from vanishing (消逝), and there are some solid reasons for it.

    The projections for online spending is optimistic with 150 billion expected to be spent in the coming three years, yet we are also expecting 300 billion in spending at physical stores in the same duration. Do you still think that physical-store shopping is too small to sustain (支撑) the e-commerce blow?

    Even though consumers are staying away from physical stores that follow older concepts, yet we are seeing the rise of fresh concept stores all around the US. We are seeing innovative and attractive success stories of physical stores, ranging from clothes stores to restaurants to health spas. It would be easy to assume that this trend will continue.

    Indeed, many shopping malls are dying, yet there are still some shopping centers that are performing well. You can see this for yourself by visiting shopping malls near you. What I want to emphasize here is that not all shopping centers are made equal, just like not all e-commerce retailers (零售商) are made equal. Both shopping malls and e-commerce sites can lose business if they fail to maintain productivity through improvements and innovations. When you visit shopping centers that are serious about their business, you would see their shops and parking lots packed.

    On the other hand, even e-tailers like Amazon have experimented with pop-up shopping concepts. It is important to bear in mind that consumers prefer face-to-face interactions instead of online interactions during shopping, meaning that physical stores are going to stay there.

    Still, e-commerce retailers are seeing all of their excitement disappear as they settle the sales tax problem associated with e-tailing. As of now, five states of America have already imposed sales tax on purchases through e-commerce sites, and e-tailers in those states have already witnessed 6 to 12 percent decrease in sales.

    This reinforces the fact that physical stores are here to stay, and if you are still undervaluing their growth, you are omitting (省略) a huge chunk of the retail representation.

    College graduation eventually means taking much of your attention in your first job search. This process can be challenging, especially for those students who had second thoughts about their chosen major and intended career path — or those who majored in a field not directly connected to a specific career. If you are in one of these groups, fear not! Although your major, coursework, and academic performance are relevant to landing a job, they are not the only deciding factors on where you can work. So, just how important is your major to your job search?

    Some majors are tied directly to specific career fields. For example, if you wish to become a teacher, you will likely have needed to complete an education program and eventually sit for a licensing exam. Successfully completing a specific major is very important to landing a job in the matching field.

    Other majors, however, are closely related to career paths but don't necessarily require a degree in the area. For example, students who majored in finance or math, may also have the necessary skills to be hired as an accountant.

    Lastly, there are many industries, such as professional sales, education (non-teaching positions), insurance, and customer service management, which hire new graduates from several more majors, looking for more generalized (笼统的) requirements. They may simply want to know the student has completed his or her bachelor's degree, which proves students' college-level math and writing, critical thinking, and problem-solving skills.

    Hopefully, as a college student, you were able to do more than just attend classes. Your non-academic experiences can be very influential on your future career as well. If you worked or volunteered during college and if you enjoyed these activities, seek out related careers. You may qualify for a position regardless of your major.

    Although it often seems like your college major alone determines your career fate, this just isn't the case. It may influence it, but there are other factors that influence your career options as well. If you don't know what career choices you have, talk to your faculty or academic adviser. You may be surprised at what opportunities await!

    Many people tend to complain about not having good friends in their lives. Sadly, they seem to think that their own company is not enough to make them happy. Nothing could be further from the truth though. In order to get along with others, the first thing you need to do is learn to get along with yourself. Only in this way will you succeed in developing healthy, solid relationships with others.

    Listen to your inner voice. Remember that inner voice that keeps whispering to you what you really want and need as well as what you do not really want and need. It is about time you started listening to it. In order to get to know yourself in depth, it is important to learn and accept what you want and what you do not want.

    Learn to enjoy your own company. You will be surprised to find out how many things you can do by yourself and actually have fun in the process. Reading romantic novels, poetry or science fiction is only a few of the things that you can do by yourself, which not only can offer you hours of enjoyment, but also the chance to get to know yourself better.

    Satisfy yourself. Pay special attention to your personal hygiene(卫生). Do your hair and nails often and experiment with new styles. Follow a healthy diet and exercise regularly to stay in good shape. No matter how busy your daily schedule is, always find at least an hour per day for yourself, when you can either relax doing absolutely nothing, or doing something that you enjoy most.

    Learn to respect your own boundaries. Find out what your boundaries are and learn to respect them. You are the only one who knows what you can accept and what you cannot.

    Many of us live with a roommate at some stage. Sometimes, there can be problems. Who hasn't had an argument about whose turn it is to take out the rubbish or who should be the one to clear up after dinner? However, living with another person also comes with many benefits.

    You know that there's always someone else around, which can help you feel safer. There is always someone to talk to, so you never feel lonely. Besides these obvious benefits, there are some you may not notice. For example, we're actually more likely to eat healthier food when living with others.

    To examine the effect of living alone, Australian university researchers did much research and found that people living alone tended to eat less fresh food, which can have a significant negative effect on long-term health. However, those living with others generally benefited from a more varied diet compared to those living alone.

    What could explain these findings? The researchers believe the social and cultural roles played by cooking, food preparation and eating may be important considerations. For example, those living with friends have someone else to go shopping with, and thus are likely to buy higher-quality fresh food regularly.

    Cooking skills may be another factor. If people living alone find they do not have the knowledge required to prepare a particular dish or cook a certain food, they may fall back on ready-made, less healthy food. However, if they live with at least one other person, they may be able to ask for help.

    In addition, people living alone can eat whatever they want at any time of the day or night. However, it's helpful to have someone around who questions your decision to eat frozen pizza at 3 am. In other words, roommates can draw your attention to unhealthy routines.

    So, if you now live alone and find yourself fighting a losing battle against poor eating habits, why not consider sharing a home with someone else? You could encourage one another on to greater health and well-being.

Why College Is Not Home

    The college years are supposed to be a time for important growth in autonomy(自主性) and the development of adult identity. However, now they are becoming an extended period of adolescence, during which many of today's students are not shouldered with adult responsibilities.

    For previous generations, college was a decisive break from parental control; guidance and support needed to come from people of the same age and from within. In the past two decades, however, continued connection with and dependence on family, thanks to cell phones, email and social media, have increased significantly. Some parents go so far as to help with coursework. Instead of promoting the idea of college as a passage from the shelter of the family to autonomy and adult responsibility, universities have given in to the idea that they should provide the same environment as that of the home.

    To prepare for increased autonomy and responsibility, college needs to be a time of exploration and experimentation. This process involves "trying on" new ways of thinking about oneself both intellectually(在思维方面)and personally. While we should provide "safe spaces" within colleges, we must also make it safe to express opinions and challenge majority views. Intellectual growth and flexibility are fostered by strict debate and questioning.

    Learning to deal with the social world is equally important. Because a college community(群体) differs from the family, many students will struggle to find a sense of belonging. If students rely on administrators to regulate their social behavior and thinking pattern, they are not facing the challenge of finding an identity within a larger and complex community.

    Moreover, the tendency for universities to monitor and shape student behavior runs up against another characteristic of young adults: the response to being controlled by their elders. If acceptable social behavior is too strictly defined(规定) and controlled, the insensitive or aggressive behavior that administrators are seeking to minimize may actually be encouraged.

    It is not surprising that young people are likely to burst out, particularly when there are reasons to do so. Our generation once joined hands and stood firm at times of national emergency. What is lacking today is the conflict between adolescents' desire for autonomy and their understanding of an unsafe world. Therefore, there is the desire for their dorms to be replacement homes and not places to experience intellectual growth.

    Every college discussion about community values, social climate and behavior should include recognition of the developmental importance of student autonomy and self-regulation, of the necessary tension between safety and self-discovery.

    With golden sunshine and a gentle breeze（微风）, autumn is the most beautiful seasons in the year. This is a great time to go outside and have fun. Go to a valley to see red maple trees, go and pick fruit in an orchard or find an open field to fly your kite in.

    However, for many high school students, these great activities may be just a dream. With plenty of work to do, they spend all their hours indoors, struggling for a high mark in their exams. Of course, study is one of the most important things for teenagers. But life is definitely much more than that.

    Sometimes we spend so much time studying that we forget how to make life wonderful. In doing so, we lose the real purpose of life —to be a valuable and happy person. To enjoy just how great it is to be alive, we have to put down our books and pens and look around us. Students, take some exercise to improve your health, talk with your parents and friends for understanding and walk around outside to refresh（振作）our body and mind.

    Going out and enjoying the beautiful countryside often helps our creativity in our work. Chinese craftsman, Lu Ban created a saw to help woodworkers. But if he hadn't walked outside, he would not have been inspired by a kind of toothed（锯齿状的）grass. We could also suppose if Newton hadn't rested under that apple tree, then he wouldn't have been hit by an apple, and his classic（经典的）theories would not have come out.

    Going out is not only a break from hard work, but a chance to add to life experience. So come on, give your brain a good rest. Step out of the books and get your bag ready for an autumn outing. We are sure you will get much more than knowledge from the exciting journey.

Early or Later Day Care

    Many young parents are confused about whether their children should have early day care, and there have always been different views on this subject.

    The British psychoanalyst John Bowlby believes that separation from parents during the sensitive "attachment" period from birth to three may scar a child's personality and lead to psychological problems in later life. Some people have drawn the conclusion from Bowlby's work that children should not be subjected to day care before three because of the parental separation it causes, and many people do believe this.

    According to Bowlby, a great deal of psychological harm can occur when young children are separated from their parents. If they are left without touch for a while, they will have a higher stress level. Parents' influence on their children's well-being may never be greater than during the earliest years of life, when a child's brain is developing rapidly and when nearly all of her or his experiences are shaped by parents and the family environment.

    However, there are critics. Some anthropologists (人类学家) point out that the love affair between children and parents found in modern societies does not usually exist in traditional societies. There has been a long history of the fact that father and mother did not bring up their children alone. Plato, around 394 B.C., argued that a system of early child care would free women to participate in society. Results from Israeli and Dutch studies show that child-raising duties are more evenly distributed among a broader group of people.

    Besides, studies have reported that early day care has a neutral or slightly positive effect on children's development. They learn the benefits of being socially smart, understanding the concept of sharing and caring. They promote concentration skills, which is very important in their learning. There are games where children are taught basic language and mathematical skills through stories and everyday examples.

    Common sense tells us that early day care would not be so widespread if children had problems with it. But Bowlby's analysis raises the possibility that it has delayed effects. The possibility that such care might lead to more mental illness 15 or 20 years later can only be explored by the use of statistics. Whatever the long-term effects, parents sometimes find the immediate effects difficult to deal with. Children under three dislike leaving their parents and show unhappiness. At the age of three almost all children find it easy to go to the nursery. The matter, then, is far from being clearly known, though experience and available evidence indicate that early day care is reasonable for young children.

    Have you ever heard someone say "You totally look like you're a Jessica" or something similar? People seem to think that they know what kind of person a "Jessica" or a "Michael" looks like. Why is this?

    According to a study published in the Journal of Personality and Social Psychology, humans tend to associate people's names with their appearances, and can even guess someone's name based on how they look.

    Researchers at the Hebrew University of Jerusalem, Israel, collected thousands of photos of people's faces. They labeled (贴标签于) each photo with four names. Then, they asked volunteers to guess which of the four names was correct.

    The volunteers were able to guess the right name 38% of the time. It seems that certain characteristics of faces give them clues about someone's name, Reader's Digest reported.

    However, this only worked when the volunteers looked at names from their own culture. In addition, the volunteers were not as good at guessing the real names of people who used nicknames(昵称)more often than their real names. This may show that a person's appearance is affected by their name only if they use it often.

    "This kind of face-name matching happens because of a process of self-fulfilling prophecy (预言), as we become what other people expect us to become," Ruth Mayo from tile university told science news website EurekAlert.

    Earlier studies have shown that gender (性别) and race stereotypes (刻板印象) can affect a person's appearance. The researchers believe there are also similar stereotypes about names. For example, people tend to think that men named Bob should have rounder faces because the word itself looks round. People may think that women named Rose are beautiful. They expect them to be "delicate" and "female", just like the flower they are named for.

    The new social robots, including Jibo, Cozmo, Kuri and Meccano M.A.X., bear some resemblance to assistants like Apple's Siri, but these robots come with something more. They are designed to win us over not with their smarts but with their personality. They are sold as companions that do more than talk to us. Time magazine hailed (称赞) the robots that "could fundamentally reshape how we interact with machines." But is reshaping how we interact with machines a good thing, especially for children?

    Some researchers in favor of the robots don't see a problem with this. People have relationships with many kinds of things. Some say robots are just another thing with which we can have relationships. To support their argument, roboticists sometimes point to how children deal with toy dolls. Children animate (赋予…生命) dolls and turn them into imaginary friends. Jibo, in a sense, will be one more imaginary friend, and arguably a more intelligent and fun one.

    Getting attached to dolls and sociable machines is different, though. Today's robots tell children that they have emotions, friendships, even dreams to share. In reality, the whole goal of the robots is emotional trickery. For instance, Cozmo the robot needs to be fed, repaired and played with. Boris Sofman, the chief executive of Anki, the company behind Cozmo, says that the idea is to create "a deeper and deeper emotional connection ... And if you neglect him, you feel the pain of that." What is the point of this, exactly? What does it mean to feel the pain of neglecting something that feels no pain at being neglected, or to feel anger at being neglected by something that doesn't even know it is neglecting you?

    This should not be our only concern. It is troubling that these robots try to empathize with children. Empathy allows us to put ourselves in the place of others, to know what they are feeling. Robots, however, have no emotions to share, and they cannot put themselves in our place. No matter what robotic creatures "say" or squeak, they don't understand our emotional lives. They present themselves as empathy machines, but they are missing the essential equipment. They have not been born, they don't know pain, or death, or fear. Robot thinking may be thinking, but robot feeling is never feeling, and robot love is never love.

    What is also troubling is that children take robots' behavior to indicate feelings. When the robots interact with them, children take this as evidence that the robots like them, and when robots don't work when needed, children also take it personally. Their relationships with the robots affect their self-esteem (自尊). In one study, an 8-year-old boy concluded that the robot stopped talking to him because the robot liked his brothers better.

    For so long, we dreamed of artificial intelligence offering us not only simple help but conversation and care. Now that our dream is becoming real, it is time to deal with the emotional downside of living with robots that "feel."

Reading a book and watching a film are two very different experiences, but expectations can be high when a film of a favourite book is made. There are very many times I have been disappointed by a film of a book I love. So maybe highly regarded books do not always make good films. It is safe to say that great movies may be made from not particularly good books.

The source material may be anything from classic novels, short stones, comic books and stage plays, as well as non­fiction such as biography and autobiography, even those written by ghostwriters. All can work well, but why do many adaptations and indeed remakes fail with both cinema audiences and critics?

A key question is obviously how close to the original the film is. Since a typical film is only around two hours long, it becomes a question of what to leave out, and how to script the dialogue. Sometimes there may be changes to the plot, additions and even different endings to please producers, directors and test audiences. I, like many people, have often left the cinema feeling "the film is not like the book".

Another problem area is the cast. Whether suitable actors are found or not can mean the difference between success and failure. Readers of the book use their imaginations to visualize characters and have very definite ideas about how characters look and sound. This is where I think many film adaptations fall down.

Some books are just too difficult to film for technical reasons, although movies like The Life of Pi are changing this perception. The impact of CGI technology has had a huge impact on the movie industry and allowed the previously unfilmable to become a reality.

 Sometimes authors are very involved in the process and many may even be the screenwriters. This can actually be a bad thing because they may be too close to the material and find it difficult to adapt. At other times they are not the screenwriters, and there are instances where writers have been very unhappy with the film versions of their work. Roald Dahl and Stephen King are examples of this. Even more extreme was novelist J. D. Salinger who made sure no film versions of his popular novels could ever be made. In this situation, it is clear viewers will not be disappointed.

It is true that quite a few most respected scientific authorities have confirmed that the world is becoming hotter and hotter. There is also strong evidence that humans are contributing to the warming. Countless recent reports have proved the same thing. For instance, a 2012 summary about the climate science by the Royal Society noted that, "The global warming over the last half-century has been caused mainly by human activity."

You may not believe that humans could change the planet's climate, but the basic science is well understood. Each year, billions of tons of greenhouse gases are released into the atmosphere because of human activity. As has been known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the earth's climate has always been changing due to "natural" factors(因素) such as volcanic eruption or changes in solar, or cycles concerning the Earth's going around the sun. According to the scientific research, however, the warming observed by now matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere—not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming recorded so far, that would give birth to a difficult question. As Robert Henson puts it, "If some newly discovered factor is to blame for the climate change, then why aren't carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?"

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths—one with human influence and one without That obviously isn't possible, and so most scientists are careful not to state human influence as an absolute certainty.