As you grow rapidly through your teenage years, you will experience a lot of changes. The changes may seem difficult. {#blank#}1{#/blank#} Don't panic! You will deal successfully with them! You are a young adult now!

    With more responsibility, you will find more freedom to make your own choices. This is a time to be well informed about making choices. In this way you can make healthy balanced decisions. {#blank#}2{#/blank#}You may already know your career path or you may have no idea at all what you want to do. Both situations are fine! Work hard and the right opportunity will present itself to you.

    Young adulthood means greater freedom and more choices. {#blank#}3{#/blank#}But try not to shut your family out of your life. You should learn to think of others even though you are old enough to look after yourself.

    It is also perfectly natural at this time for you to spend more time with your friends than your family. {#blank#}4{#/blank#} A true friend will stand by you no matter what happens.

    This period is a part of the life cycle. There are some people who will be with you throughout life's journey. There will be some people with whom you part and go separate way. Leaving school can be hard. The reality is that you may not even see all of your classmates again.

    You are a young adult. It is your life. No one can live it for you. {#blank#}5{#/blank#} So making the right choices will be important to you. Life is for living. Enjoy your life wisely!

A. Choose your friends wisely

B. They will help shape the future

C. They may seem to happen quickly

D. You will probably want to be independent

E. You may appreciate what you have in your own life

F. The choices that you make from now on will be your choices

G. Your family has been with you since you came into this world

    This past Christmas season, I went to visit my parents. During the visit, I found the letters written by my parents to each other during the war in the attic (阁楼). The letters were piled high, dirty and had not been touched for decades. I asked mother and father if I could take the letters back to my home. They agreed.

    As I opened each letter, all of them beautiful with age, I discovered a new page in this private part of my parents' lives. My father served in the army. His letters were full of frontline (前线) descriptions, and they continued all the way through the battle. Each of my mother's letters was sealed (密封) with her lipstick kiss. Father wrote that he sealed his return letters by rekissing her lipstick kiss. How they had been missing each other! I finished reading six months of the letters and discovered there were at least eleven months missing. Maybe they were lost forever.

    Not long after our Christmas visit, Father became very ill and was in hospital. I went to the hospital to see him. As I sat by his bedside, he told me how much receiving those lipstick-kissed letters had meant to him when he had been so far from home.

    Later that evening, Mother and I revisited the attic in search of the lost letters. Finally we dug them out of Mother's old college trunk (皮箱). The next day was Valentine's Day, and we went to the hospital. At my father's bedside, I showed him an old envelope. His curiosity was aroused. When he carefully opened the letter, he recognized it and his eyes were filled with tears. He read the love messages that had been delivered years before to my mother in a quavery (颤抖的) voice. This Valentine's Day, we were lucky that we had everything.

    The last time I visited my eighty­three­year­old mother­in­law, I asked how she was feeling. It's a valid question. She has, after all, had two knee replacements and a liver transplant. She moves slowly to avoid another fall.

    But she hasn't stopped moving. She and my father­in­law attended their first Jimmy Buffet concert this summer. Here's the thing about my in­laws: They never say no to an invitation or a new adventure. If they can make it work, they're willing to try just about anything. When we need them to come to stay with the kids, we have to get on their calendars far in advance.

When asked how she was feeling, my motherinlaw responded, "Well, everything hurts every day. But you know what I've discovered? It doesn't hurt to smile. So that's what I've decided to do... smile at everyone I see. I may not be able to do all the things I used to do, but I can at least brighten someone's day."

    It is such simple wisdom. Moving the focus from what we don't have and from what we've lost to what we can offer others is the difference between living in the dark and radiating light. They inspire us daily.

    The key to a life worth living, I think, is to change our views. You don't have to make great changes. Sometimes change looks similar to everyday kindness. Sometimes change begins with holding the door for a mother with an armful of groceries.

    In theory, the butterfly effect says that the smallest breeze(微风) from a butterfly's wing can change the path of a hurricane halfway. Imagine, then, the possibilities that exist within a single smile.

Preparing Cities for Robot Cars

    The possibility of self-driving robot cars has often seemed like a futurist's dream, years away from materializing in the real world. Well, the future is apparently now. The California Department of Motor Vehicles began giving permits in April for companies to test truly self-driving cars on public roads. The state also cleared the way for companies to sell or rent out self-driving cars, and for companies to operate driverless taxi services. California, it should be noted, isn't leading the way here. Companies have been testing their vehicles in cities across the country. It's hard to predict when driverless cars will be everywhere on our roads. But however long it takes, the technology has the potential to change our transportation systems and our cities, for better or for worse, depending on how the transformation is regulated.

    While much of the debate so far has been focused on the safety of driverless cars (and rightfully so), policymakers also should be talking about how self-driving vehicles can help reduce traffic jams, cut emissions (排放) and offer more convenient, affordable mobility options. The arrival of driverless vehicles is a chance to make sure that those vehicles are environmentally friendly and more shared.

    Do we want to copy—or even worsen—the traffic of today with driverless cars? Imagine a future where most adults own individual self-driving vehicles. They tolerate long, slow journeys to and from work on packed highways because they can work, entertain themselves or sleep on the ride, which encourages urban spread. They take their driverless car to an appointment and set the empty vehicle to circle the building to avoid paying for parking. Instead of walking a few blocks to pick up a child or the dry cleaning, they send the self-driving minibus. The convenience even leads fewer people to take public transport—an unwelcome side effect researchers have already found in ride-hailing (叫车) services.

    A study from the University of California at Davis suggested that replacing petrol-powered private cars worldwide with electric, self-driving and shared systems could reduce carbon emissions from transportation 80% and cut the cost of transportation infrastructure (基础设施) and operations 40% by 2050. Fewer emissions and cheaper travel sound pretty appealing. The first commercially available driverless cars will almost certainly be fielded by ride-hailing services, considering the cost of self-driving technology as well as liability and maintenance issues (责任与维护问题). But driverless car ownership could increase as the prices drop and more people become comfortable with the technology.

    Policymakers should start thinking now about how to make sure the appearance of driverless vehicles doesn't extend the worst aspects of the car-controlled transportation system we have today. The coming technological advancement presents a chance for cities and states to develop transportation systems designed to move more people, and more affordably. The car of the future is coming. We just have to plan for it.

    Benjamin Franklin clearly knew how to get things done. After scanning the long list of Benjamin Franklin's achievements, one can only come to one conclusion that the American man probably never had a wasted day in his life. When he was 84 years old, he became a successful author, printer, politician, postmaster, inventor, musician, and diplomat.

    There's much we can learn from Benjarin Frankin's work habits and opinions on life that can increase our own productivity. Here are some ways Franklin overcame lazy, wasted days.

    Start a group and share knowledge. When Franklin was 21, he was a struggling printer in Philadelphia. To increase his connections and to learn more about his industry, he created a group. The group was in great need of books, but books were expensive. Franklin helped start a library where books were bought and lent to members. This sharing of knowledge, experience, and connections helped Franklin become a famous and respected printer in Philadelphia.

    Attack opportunities. "To succeed," Franklin wrote," jump as quickly at opportunities as you can." We can all agree, but when an opportunity comes we often look the other way. It's because the opportunity isn't dressed the way we expect. We often think that the opportunity was only in the form of a golden egg or a million-dollar lottery ticket or a new job offer. But more often than not, the opportunity comes in smaller, less beautiful packages.

    Time is something in short supply. Franklin wrote "Lost time is never found again." This may sound like it came from the pen of a poet, but it's really an inspirational call to action. Franklin worked, created, and lived knowing that time is scarce. He never put off his work.

    While Franklin was an able inventor we can be sure that his notebook contained a few unsuccessful ideas. Franklin wrote, "Do not fear mistakes. You will know failure. Continue to reach out."

Of the tens of thousands of ships on the ocean bottom, only a handful, less than I percent, contain negotiable treasure, such as gold and jewels. Most give us a different priceless treasure — history. A sunken ship lies in trust, preserved in the airless environment of the sea and those in deep water are especially well protected. A sunken ship, therefore, can be a rare window through which a moment in time is glimpsed.

The wreck of HMS Endurance, which has finally been located deep beneath the icy seas of Antarctica after being lost 110 years ago, was arguably the most valuable shipwreck ever sought. That's because its discovery adds another thrilling new chapter to an already fascinating tale of perseverance and survival that has echoed down the decades and still inspires today.

Incredibly well preserved at a depth of almost two miles, the ship is little changed from the day in November 1914 when it finally sank beneath the ice. Endurance became embedded in ice while crossing Antarctica's Weddell Sea. The video shot by underwater search vehicles shows painted timbers, an undamaged guardrail (护栏), with the name "Endurance" written above the five-pointed symbol of a polar star.

"I tell you, you would have to be made of stone not to feel a bit soft at the sight of that star and the name above," Mensun Bound, the mission's marine archaeologist, told the: BBC. "You can see a porthole (舷窗) that is in Shackleton's cabin. At that moment, you really do feel the breath of the great man upon the back of your neck." Shackleton's leadership was crucial to getting his men out alive. The reason why Shackleton is still applauded as a great man becomes obvious when you consider what he achieved in the face of disasters and hardships during his 1914-16 expedition. The practicality and humanity he showed in the face of severe situations was arguably praised.