An environmental group called the Food Commission is unhappy and disappointed because of the sales of bottled water from Japan. The water, it angrily argues in public, has traveled 10,000 “food miles” before it reached Western customers. Transporting water halfway across the world is surely the extremely stupid use of fuel when there is plenty of water in the UK. It is also worrying that we were wasting our fuel by buying prawns from Indonesia (7,000 food miles ) and carrots from South Africa (5,900 food miles).

        Counting the number of miles traveled done by a product is a strange way of trying to tell the true situation of the environmental damage due to industry. Most food is transported around the world on container ships that are extremely energy efficient. It should be noticed that a ton of butter transported 25 miles in a truck to a farmers' market doesn't necessarily use less fuel on its journey than a similar product transported hundreds of miles by sea. Besides, the idea of “food miles” ignores the amount of fuel used in the production. It is possible to cut down your food miles by buying tomatoes grown in Britain rather than those grown in Ghana. The difference is that the British ones will have been raised in heated greenhouse and the Ghanaian ones in the open sun.

       What is the idea of “food miles” does provide, however, is the chance to cut out Third World countries from First World food markets. The number of miles traveled by our food should, as I see it, be regarded as a sign of the success of the global trade system, not a sign of damage to the environment.

    You want to be happy, who doesn't? However, whether you procrastinate(拖延), feed negative self-talk, or don't rest your mind, you lower your potential to create happiness.

Procrastination

    You aren't in deadly danger if you procrastinate, but your system doesn't always take this information on board. You still react as though you are anxious and produce stress chemicals.

    {#blank#}1{#/blank#} Your ability to see the big picture of life is reduced when you procrastinate. Therefore, you don't see as much joy.

Negative self-talk

    {#blank#}2{#/blank#} Taking notice of what goes on in your head and putting positive change in action makes negative self-talk useful. Nevertheless, most people don't recognize negative self-talk as a pointer; they feed it until it grows out of control.

{#blank#}3{#/blank#}

    Your mind contains an incredible amount of information and is more powerful than any computer many times over. However, if you give it too many tasks, you shut out peace of mind.

    {#blank#}4{#/blank#} Thought-overload results in physical symptoms, like a racing heart and shortness of breath. Additionally, you might have sleeplessness, digestive problems and other symptoms of stress that reduce your happiness.

    If you want to increase the odds of being happy, don't procrastinate. {#blank#}5{#/blank#} Similarly, don't overload your mind, give it a rest and you will soon notice you are happier.

    Even before my father left us, my mother had to go back to work to support our family. Once I came out of the kitchen, complaining, “Mom, I can't peel potatoes. I have only one hand.” Mom never looked up from sewing. “You get yourself into that kitchen and peel those potatoes,” she told me. “And don't ever use that as an excuse for anything again!”

    In the second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars, swinging(荡秋千) from one high steel rod to the next. When it was my turn, I shook my head. Some kids behind me laughed, and I went home crying.

    That night I told Mom about it. She hugged me, and I saw her “we'll see about that” look. The next afternoon, she took me back to school. At the deserted playground, Mom looked carefully at the bars.

    “Now, pull up with your right arm,” she advised. She stood by as I struggled to lift myself with my right hand until I could hold the bar with my other elbow(肘). Day after day we practiced, and she praised me for every rung(横档) I reached. I'll never forget the next time, crossing the rungs, I looked down at the kids who were standing with their mouths open.

    One night, after a dance at my new junior high, I lay in bed sobbing. I could hear Mom come into my room. “Mom,” I said, weeping, “none of the boys would dance with me.”

    For a long time, I didn't hear anything. Then she said, “Oh, honey, someday you'll be beating those boys off with a bat.” Her voice was faint. I peeked out from my covers to see tears running down her cheeks. Then I knew how much she suffered on my behalf. She just never let me see her tears.

    How fit are your teeth? Are you lazy about brushing them? Never fear: An inventor is on the case. An electric toothbrush senses how long and how well you brush, and it lets you track your performance on your phone.

    The Kolibree toothbrush was exhibited at the International Consumer Electronics Show in Las Vegas this week. It senses how it is moved and can send the information to an Android phone or iPhone via a Bluetooth wireless connection.

    The toothbrush will be able to teach you to brush right (don't forget the insides of the teeth!) and make sure you're brushing long enough. “It's kind of like having a dentist actually watch your brushing on a day-to-day basis,” says Thomas Serval, the French inventor.

    The toothbrush will also be able to talk to other applications on your phone, so developers could, for instance, create a game controlled by your toothbrush. You could score points for beating monsters among your teeth. “We try to make it smart but also fun,” Several says.

    Serval says he was inspired by his experience as a father. He would come home from work and ask his kids if they had brushed their teeth. They said “yes,” but Serval would find their toothbrush heads dry. He decided he needed a brush that really told him how well his children brushed.

    The company says the Kolibree will go on sale this summer, for $99 to $199, developing on features. The U.S. is the first target market.

    Serval says that one day, it'll be possible to replace the brush on the handle with a brushing unit that also has a camera. The camera can even examine holes in your teeth while you brush.

Dear Koko,

    I've learned about you from my amazing teacher. I think it's fun that you can communicate with us humans by using the sign language. I've spent a lot of time watching you in different videos and love you from the bottom of my heart.

    It's heartbreaking to learn about all of the cruel things done to gorillas (大猩猩). In Africa, for example, the killers use guns to kill your fellows for meat. They don't understand the influence their actions are having on gorillas. Another thing is the loss of gorillas' natural home, which is caused by the improved infrastructure such as building roads and airports. When we cut down trees, you become homeless. We take away your shelter and sources of food, leaving you with very little chance of survival.

    Some of my classmates are writing to the relevant departments about these serious problems. Hopefully these letters will make a difference during your lifetime. Over the past three months, my class has been researching on gorillas, and I've learned so many things. For example, I've learned that you have a lot of feelings similar to mine and you are always so careful with everything you do. I think that you are really worth saving.

    We've come up with many ideas to help you and your fellows. One of the best ideas is to communicate with the President of the World Bank and have him give more financial support to the organizations for gorillas. Another idea is to make public laws on the killers. I also think we need to keep educating people about gorillas.

    I love writing to you and hope you can understand how important you've become to our class. Would it be too much to ask for a return letter?

Mike

    Nowadays it's believed that the largest contributors to air pollution are gasoline vehicles. They not only give off harmful gases but also dangerous and heavy metal particles（微粒） that can result in environmental dangers. We can't stop using vehicles and thus stop air pollution right away. However, at least we can look for better replacements so that air pollution can be reduced. According to studies, hydrogen （氢）cars prove to be a better replacement for traditional cars.

    A hydrogen car is a vehicle that uses hydrogen as fuel for its engine to work. There are two types of hydrogen cars. The first one is to use hydrogen as a fuel, and the second one is to use hydrogen fuel cells（电池） to provide power for the car. Hydrogen and oxygen react chemically with each other to produce electricity, thus starting the car.

    There are many advantages of hydrogen cars. For example, hydrogen is available in plenty. Therefore, you needn't worry about a lack of hydrogen. More importantly, no harmful gases are released as by-products .The only by-products are water and a little amount of heat so air pollution is prevented up to a large extent.

    However, there are also some problems with hydrogen cars. For instance, in case of damage, the cost of repairing and replacing fuel cells is high. Worse still, hydrogen is a material which can burn easily, so it can result in a huge explosion of the car.

    The concept of hydrogen cars is relatively new for most people. Research is still in progress to reduce disadvantages and increase advantages. Therefore, hydrogen cars are expected to contribute their bit towards making this planet better and healthier!