Quicker and faster 3-D printers have allowed not just amazing objects to be created, but have started to affect how doctors treat patients.

    We've put together a list of some of the most amazingmedical break throughs made possible with 3-D printing.

Life-Saving Airway

    In 2013, doctors created a new airway for kaiba Gionfriddo, aboy born with an airway that kept collapsing (萎陷). To save his life doctors printed tiny tubes to join together in different shapes and sizes until one finally worked for Kaiba. It was placed in Kaiba's bronchus (支气管) so that it no longer collapsed. Even more remarkably, once the plant was placed it couldstay there. It's designed to eventually be absorbed into the body.

New “Bionic” Hands

    One of the most remarkable ways 3-D printing is now being used is as a way to create prosthetics (假肢). A boy born without an arm named Alex was able to get a new“bionic”hand thanks to it. Last year a college student spent 8 weeks coming up with a special prosthetic design that only cost a few hundred dollars in materials. He said he wanted to create a prosthetic far cheaper than other choices that can run tens of thousands of dollars.

A practice Heart

    In Seattle, doctors have been able to use 3-D printing technology to“practice”risky operations so that they will face fewer surprises in the operating room. Kami Sutton was born with her heart“in the wrong place”. For a recent operation her doctor was able to take many scans of Sutton's heart and print out a model. “Kami's heart is truly one-of-a-kind,”Dr. Stephan Seslar, a heart disease specialist said. “Operating on her without understanding the structure of her heart better could be very dangerous.”

A New Skull

    A U.K. man was able to have part of his skull rebuilt thanks toa 3-D printer. Stephen Power broke his cheek bones in a crash. To help Powerh is doctors instead created 3-D bones all carefully printed in the shape of his face. “This is really the first time we've taken it to this stage, where everything has been planned and modeled in advance — and worked sweetly,”said Adrian Sugar, a doctor.

阅读短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

    Oct.15th was International White Cane Safety Day. You may have never heard of it, but it was a day to remember for Peng Baier, 17, of Nanjing Foreign Language School. After school that day, he visited his local Disabled Persons' Federation (残疾人联合会). He wanted to know about the sales and feedback (反馈) of his newly published book, How to Help a Disabled Person.

    Since he lives with his disabled grandparents, he understands that life can be hard for this group of people. Peng decided to write the book because he wanted to create a better life for disabled people in China.

    “Crossing the street is a big problem for them,” Peng said. “Speeding cars, people walking in a hurry, bikes on the sidewalk for the blind - accidents can happen everywhere. That's why we hardly ever see disabled people on the street, even though there are millions of disabled people in China.”

    Peng's book with pictures is easy to understand. It is a guide to the right and wrong ways to treat disabled people. The left-hand pages show the reader the right way; the right-hand pages point out mistakes that are commonly made.

    The teenager had 2,000 copies of his book printed. With the help of the Disabled Persons' Federation, he gave them to the disabled community.

    “The book is bilingual, so foreigners can also use it,” said Peng.

    Peng put great effort into the book. For example, he interviewed many disabled people to get first hand materials. He also studied textbooks from different schools for the disabled. Peng finally completed his handbook, but he still had the problem of getting it printed.

    How does a high school student raise money needed for that?

    With a smile, Peng said how he went about it. “I visited three local companies, dressed up in a suit and tie. I was lucky. The companies were warm-hearted and willing to give me a hand.”

    Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now, the website Book Crossing.com turns the page on the traditional idea of a book group.

    Members go on the site and register the books they own and would like to share. Book Crossing provides an identification number to stick inside the book. Then the person leaves it in a public lace hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

    Bruce Pederson, the managing director of BookCrossing, says, "The two things that change your life are the people you meet and books you read. BookCrossing combines both."

    Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

    People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossing to keep them updated about where their books have been found. Bruce peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

    BookCrossing is part of a trend among people who want to get back to the "real" and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

    One of the features of a successful business is its ability to employ creativity to constantly push into new territory. Without growth and innovation, businesses eventually fade away. Those with staying power, however, have mastered an often-overlooked factor that allows them to focus on the future clearly: empathy (共情). While that may surprise many, I am certain that the ability to connect with and relate to others—empathy in its purest form—is the force that moves businesses forward.

    Though the concept of empathy might go against the modern concept of a traditional workplace competitive, the reality is that for business leaders to experience success, they need to not just see or hear the activity around them, but also relate to the people they serve.

    Some may think they want the results from doggedly (顽强地) pursuing their goals without much thought for other people. This attitude works for some, but at some point often sooner rather than later everyone needs to rely on their relationships and established personal and professional connections. These relationships are the product of taking an honest and dedicated interest in others and their businesses. Successful people do not operate alone; each of us needs the support of others to achieve positive results that push us toward our goals. True empathy combines understanding both the emotional and the logical rationale (根据) that goes into every decision.

    Effectively understanding empathy involves viewing it as each person's connection to the people and marketplace that surround them. A biological principle known as co-evolution explains that the adaptation of an organism is caused by the change of a related object. Similarly, businesses and their leaders participate in co-evolution-type relationships. Business success depends on empathetic leaders who are able to adapt, build on the strengths around them, and relate to their environment. When businesses fail, it is often because leaders have stopped focusing on understanding their environment and instead stay separated in their own operations. Successful business leaders are receptive to disturbance and aware of what is going on in their organizations both internally and externally.

    To develop an effective workforce, we must be willing to give in and meet people where they are. This can be frustrating and uncomfortable, particularly when you feel like your position makes more sense or offers a better solution. A critical part of developing empathy, however, is learning to understand, respect and implement another individual's point of view rather than forcing your own.

    Family fights are never pleasant. Whether you are dealing with a loud sister or a stubborn mom or dad, the situation can be bad. At least that's what we have learned to expect.

    What if it could be different? What if family fights and conflicts could be turned into opportunities to become closer? What if problems could be solved with everyone walking away feeling more deeply cared for and loved?

    Family fighting is, on one level, about power. Someone is telling someone else what to do. In a short moment, emotions can be brought out and the fight is on. You can go down that old road or you can try something different.

    In any fight, you have a need to be listened to and understood. People raise their voices and shout at each other because they're not being listened to. It's totally unconscious. You want your mom or dad to listen and understand. But you always seems to forget the person you're fighting with has the same need to be listened to. So if you can put aside your need for a few minutes, the situation will change quickly. Give the other person some time to express his or her feelings, and you will earn your turn to be listened to.

    And while you are listening, you have to listen for the right information. The best way to do this in emotional situations is to forget most of the words because many people can't express what they are feeling with words alone, especially when they are upset.

    But if the situation starts to get out of hand, it would be wise to just calm down and leave the problem until later because many fights happen at the wrong time. The situation will die down quickly, usually in less than 30 seconds. You can either move on to problem solving or reach an agreement to work on it at a better time.

    This way, everyone will feel respected and listened to, even when there is conflict. Emotions will be understood and respected, and it will bring your family closer together.