Once upon a time, there was a lovely vegetable field, on which grew a very thick tree. Both the vegetables and the tree gave the place a wonderful appearance, which was the joy of the garden's owner. What no one knew was that the vegetables in the field and the tree couldn't stand each other. The vegetables hated the tree's shadow, because it left them only just enough light to survive. The tree, on the other hand, hated the vegetables because they drank nearly all the water before it could get to him, leaving him with just enough to survive.

    The situation became so extreme that the vegetables got totally fed up and decided to use up all the water in the ground so that the tree would dry up. The tree answered back by refusing to give the vegetables shadow from the hot midday sun, so they both began to dry up. Before long, the vegetables were really thin and the tree's branches were drying up.

    Neither of them thought that the gardener, on seeing his vegetable field becoming worse, would stop watering it. When he did that, both the tree and the vegetables really learned what thirst was. There seemed to be no solution, but one of the vegetables, a small courgette（小胡瓜）, understood what was going on, and decided to deal with it. Despite the little water and the unbearable heat, the little courgette did all he could to grow, grow... He managed to grow so big that the gardener started watering the field again. The gardener wanted to enter that beautiful big courgette in some gardening contest.

    They should really learn how to live in harmony）with those around them, doing the best they could. So they decided to work together, and help each other instead of fighting, using both the shadow and the water in the best combination to grow good vegetables. Seeing how well they were doing, the gardener now gave the best of care to his vegetable field, watering it better than any other field for miles around.

    There were smiling children all the way. Clearly they knew at what time the train passed their homes and they made it their business to stand along the railway, wave to complete strangers and cheer them up as they rushed towards Penang. Often whole families stood outside their homes and waved and smiled as if those on the trains were their favorite relatives. This is the simple village people of Malaysia. I was moved.

    I had always traveled to Malaysia by plane or car, so this was the first time I was on a train. I did not particularly relish the long train journey and had brought along a dozen newspapers and magazines to read and reread. I looked about the train. There was not one familiar face. I sighed and sat down to read my 21^st Century Teens.

    It was not long before the train was across the Causeway and in Malaysia. Johore Baru was just another city like Singapore, so I was tired of looking at the crowds of people as they hurried past. As we went beyond the city, I watched the straight rows of rubber trees and miles and miles of green. Then the first village came into sight. Immediately I came alive; I decided to wave back.

From then on my journey became interesting. I threw my magazines into the waste basket and decided to join in Malaysian life. Then everything came alive. The mountains seemed to speak to me. Even the trees were smiling. I stared at everything as if I was looking at it for the first time.

    The day passed fast and I even forgot to have my lunch until I felt hungry. I looked at my watch and was surprised that it was 3:00 pm. Soon the train pulled up at Butterworth. I looked at the people all around me. They all looked beautiful. When my uncle arrived with a smile, I threw my arms around him to give him a warm hug. I had never done this before. He seemed surprised and then his weather-beaten face warmed up with a huge smile. We walked arm in arm to his car.    I looked forward to the return journey, by train.

    Technology offers conveniences such as opening the garage door from your car or changing the television station without touching the TV.

    Now one American company is offering its employees a new convenience: a microchip implanted (植入) in their hands. Employees who have these chips can do all kinds of things just by waving their hands. Three Square Market is offering to implant microchips in all of their employees for free. Each chip costs $300 and Three Square Market will pay for the chip. Employees can volunteer to have the chips implanted in their hands. About 50 out of 80 employees have chosen to do so. The president of the company, his wife and their children are also getting chips implanted in their hands.

    The chip is about the size of a grain of rice. Implanting the chip only takes about a second and is said to hurt only very briefly. The chips go under the skin between the thumb and forefinger. With a chip in the hand, a person can enter the office building, buy food, sign into computers and more, simply by waving that hand near a scanner. The chips will be also used to identify employees. Employees who want convenience, but do not want to have a microchip implanted under their skin, can wear a wristband (腕带) or a ring with a chip instead. They can perform the same tasks with a wave of their hands as if they had an implanted chip.

    Three Square Market is the first company in the United States to offer to implant chips in its employees. Epicenter, a company in Sweden, has been implanting chips in its employees for a while.

    Three Square Market says the chip cannot track the employees. The company says scanners can read the chips only when they are within a few inches of them. “The chips protect against identity theft, similar, to credit cards.” The U.S. Food and Drug Administration approved the chips back in 2004, so they should be safe for humans, according to the company.

    In the future, people with the chips may be able to do more with them, even outside the office. Todd Westby is Chief Executive Officer of Three Square Market. He says, “Eventually, this technology will become standardized allowing you to use this as your passport, public transit, all purchasing opportunities, etc.”

    Katherine Johnson, a brilliant mathematician at NASA (美国宇航局), began working on the space program in the 1950s. Many of NASA's first missions were made possible by her amazing calculations (计算).

    As a child, she loved to count. Her father placed great importance on education and insisted all four of his children go to college, working overtime to pay for it. Johnson said this atmosphere was important to her success. "I was always around people who were learning something. I liked to learn." She said.

    Johnson graduated from high school at 14 and college at 18. In 1953, Johnson started to work for NASA, doing the math that powered engineers' work. Then, because of her outstanding talent, she was moved to work on rockets with an all-male flight research team. As for Johnson, her calculations contributed to many of NASA's most important projects. In 1961, with the help of Johnson's work, Alan Shepherd became the first American to go into space. Johnson also lent her unbelievable talent to the success of the Apollo 13, which had trouble getting back to earth. She worked hard to calculate a safe path back to Earth for the astronauts.

    Johnson retired in 1986, but her huge contribution to the space program has only been reaching the public attention for the past few years. Part of that is because, as she is the first to admit, science is based on collaboration. "I never took any credit because we always worked as a team, it was never just one person," she said in a 2010 interview.

    Earlier this year, NASA named a new data center after her. She was also given a Silver Snoopy award, which recognizes "outstanding performance, contributing to flight safety and mission success."

    Finding fruits and vegetables at your typical grocery store that have been grown without the extensive use of pesticides can be difficult. Fortunately, The Environmental Working Group(EWG) has done all of the work for you in finding healthy and pesticide－free produce.

    EWG has created the 2018 Shopper's Guide to Pesticides in Produce, which helps shoppers to find uncontaminated produce. Many consumers do not realize that pesticide residues(残留) are very common on conventionally grown produce products, even after they have been washed or peeled. Because of this, EWG has created their series of guides to lead consumers to safer food choices.

    In order to create these guides, EWG analyzed the USDA pesticides tests, which found a total of 230 different pesticides and pesticides breakdown products on thousands of produce samples. Analyzing this information, EWG observed the big differences of the amount of pesticides found from product to product.

    The guide's two main components are two compiled lists highlighting the cleanest and dirtiest produce concerning pesticides. These two lists, Dirty Dozen and Clean Fifteen, show consumers how certain foods continue to carry trace amounts of pesticides with them all the way to the grocery store shelves, while others make it to your kitchen virtually pesticide－free.

    Some of the highlights from their analyses included the following findings：

    More than one－third of strawberry samples analyzed in 2016 contained 10 or more pesticide residues and breakdown products.

    Spinach(菠菜) samples had, on average, almost twice as much pesticide residue by weight compared to any other crop.

    No single fruit sample from the Clean Fifteen tested positive for more than four pesticides.

    “With EWG's guide, consumers can fill their fridges and fruit bowls with plenty of healthy conventional and organic produce that isn't contaminated with multiple pesticide residue," said Sonya Lunder, a senior analyst in EWG.

    Only 25 years ago, the National Academy of Sciences raised concerns about exposure to poisonous pesticides in our food, yet consumers still consume a mixture of pesticides every day in America.

Kids are begging parents for cell phones at younger and younger ages, leaving families with tough choices to make. It might take some time to teach kids how to use phones as tools, not toys. Here are a few ways to get the message across. 

Tell them not to use phones at school. Phones can be a distraction (干扰) from learning when used in the classroom. {#blank#}1{#/blank#}In fact, 43% of teens admit that they often or sometimes use their phones as a way to avoid face-to-face communication with others. 

Encourage them to contact long-distance relatives. {#blank#}2{#/blank#} They're also for keeping in touch with people who you may not get to talk to as often. If you have families who live in another city or state, ask your kids to strike up a conversation. 

Lead by example. Setting an example is not only about how you use your phone, but also about how much you use it. When you feel bored and expect to glance over social media, fight it by taking a short walk. {#blank#}3{#/blank#}

Advise them not to use phones at the dinner table. For many families, the only time they truly get together is breaking bread at tbe end of a long day. {#blank#}4{#/blank#} Asking your children to leave their phones far from the dinner table is a great way to solve the problem. 

{#blank#}5{#/blank#} Sometimes, kids need a little push in order to make better choices about their phones. If they're struggling with healthy habits, put some real-world events on the calendar. Good options include going to an amusement park, working together on a craft project or signing your kids up for sports.

A．Plan other forms of entertainment.

B．Prepare a dinner together with your children.

C．Screen time before bed reduces sleep quality.

D．They can also prevent students from connecting with one another.

E．So it is wise of parents to stress the importance of parent child time. 

F．Also, instead of reading a headline, why not pull out a book to read?

G．Phones aren't just for texting the best friend who lives two blocks away.