Even though she’s just 5 years old, Cindy Smart speaks five languages．She’s a good reader．She can tell time and do simple math, including multiplication and division．Cindy looks like an average doll, with long, blond hair, baby-blue eyes, and a button nose．But loaded with some devices, Cindy is the first doll that can see, think, and do as she’s told．The eagle-eyed Cindy follows in the path of other breakthrough toys like Sony’s barking Robot Aibo, which was the first to popularize voice command in the late 1990s．Cindy takes Aibo’s innovations(创新)one step beyond：she not only follows instructions but also recognizes shapes, colors and words, and remembers．The effect is a doll that appears to be learning．

　　The toy company which produced Cindy Smart spent a decade trying to see how much human nature it could breath into an inanimate(无生命的)object．Its engineers began creating minibots that sense light, sounds, and pressure．However, without the sense of sight, their toys seemed to be lacking in one of the abilities that life-forms use to react to their environment．

　　So how do the engineers make a doll actually see?In Cindy’s case, it’s a multistep process．When presented a text like “I love you” and asked “Can you read this?” Cindy identifies it as one of 70 preprogrammed commands．Then the inbuilt digital camera scans a 15-degree radius in search of number-or letter-shaped objects．Buried in her stomach, Cindy’s 16-bit microprocessor compares the text with her database of 700 words．If it’s a match, “ I love you,” she says．

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阅读理解

　　There's an energy crisis in America, and it has nothing to do with fossil fuels．Millions of us get up each morning already weary over the day holds．“I just can't get started．” People say．But it's not physical energy that most of us lack．Sure, we could all use extra sleep and a better diet．But in truth, people are healthier today than at any time in history．I can almost guarantee that if you long for more energy, the problem is not with your body．

　　What you're seeking is not physical energy．It's emotional energy．Yet, sad to say life sometimes seems designed to exhaust our supply．We work too hard．We have family obligations(义务)．We encounter(遭遇)emergencies and personal crises．No wonder so many of us suffer from emotional fatigue(疲劳), a kind of utter exhaustion of the spirit．

　　And yet we all know people who are filled with joy, despite the unpleasant circumstances of their lives．Even as a child I observed people who were poor or disabled or ill, but who nevertheless faced life with optimism and vigor(活力)．Consider Laura Hillenbrand, who despite

　　an extremely weak body wrote the best-seller Seabiscuit．Hillenbrand barely had enough physical energy to drag herself out of bed to write．But she was fueled by having a story she wanted to share．It was emotional energy that helped her succeed．Unlike physical energy, which is finite(有限的)and diminishes(减少)with age, emotional energy is unlimited and has nothing to do with genes or upbringing．So how do you get it? You can't simply tell yourself to be positive．You must take action．Here are six practical strategies that work．

　　Very little that's new occurs in our lives．The impact of this sameness on our emotional energy is gradual, but huge：It's like a tire(轮胎)with a slow leak(漏)．You don't notice it at first, but eventually you'll get a flat．It's up to you to plug the leak－even though there are always a dozen reasons to stay stuck in your dull routines of life．That's where Maura, 36, a waitress, found herself a year ago．Fortunately, Maura had a lifeline－a group of women friends who meet regularly to discuss their lives．Their lively discussions spurred Maura to make small but nevertheless life altering changes．She joined a gym in the next town．She changed her look with a short haircut and new black T-shirts．Eventually, Maura gathered the courage to quit her job and start her own business．Here's a challenge：If it's something you wouldn't ordinarily do, do it．Try a dish you've never eaten．Listen to music you'd ordinarily tune out．You'll discover these small things add to your emotional energy．

　　So many of my patients tell me that their lives used to have meaning, but that somewhere along the line things went stale(厌倦的)．The first step in solving this meaning shortage is to figure out what you really care about, and then do something about it．A case in point is Ivy, 57, a pioneer in investment banking．“I mistakenly believed that all the money I made would mean something．” she says．“But I feel lost, like a 22-year-old wondering what to do with her life．” Ivy's solution? She started a program that shows Wall Streeters how to donate time and money to poor children．In the process, Ivy filled her life with meaning．

　　Most of us grown-ups are seriously fun-deprived(缺乏的)．High-energy people have the same day-to-day work as the rest of us, but they manage to find something enjoyable in every situation．A real estate broker I know keeps herself amused on the job by mentally redecorating the houses she shows to clients(客户)．“I love imagining what even the most run-down house could look like with a little tender loving care,” she says．“It's a challenge－and the least desirable properties are usually the most fun．” We all define fun differently, of course, but I can guarantee this：If you put just a bit of it into your day, you energy will increase quickly．

　　Everyone's past is filled with regrets that still cause pain．But from an emotional energy point of view, they are dead weights that keep us from moving forward．While they can't merely be willed away, I do recommend you remind yourself that whatever happened in the past, nothing can change that．Holding on to the memory only allows the damage to continue into the present．

　　Say you've been thinking about cutting your hair short．Will it look stylish－or too extreme? You endlessly think it over．Having the decision hanging over your head is a huge energy drain．Every time you can't decide, you burden yourself with alternatives．Quit thinking that you have to make the right decision; instead, make a choice and don't look back．

　　Emotional energy has a kind of magical quality：the more you give, the more you get back．This is the difference between emotional and physical energy with the latter．You have to get it to be able to give it．With the former, however, you get it by giving it．Start by asking everyone you meet, “How are you?” as if you really want to know, and then listen to the reply．Be the one who hears．Most of us also need to smile more often．If you don't smile at the person you love first thing in the morning, you're sucking energy out of your relationship．Finally, help another person－and make the help real, concrete．Give a massage to someone you love, or cook her dinner, then, expand the circle to work．Try asking yourself what you'd do if your goal were to be helpful rather than efficient．After all, if it's true that what goes around comes around, why not make sure that what's circulating around you is the good stuff?

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