Leon McCarthy, 12, was born without fingers on his left hand. That didn’t stop him from being able to do many tasks. But Leon could not grasp more than one object at a time. So Leon’s father. Paul, created a prosthesis(假肢), using a 3D printer. Now Leon has fingers that open and close. “It was a do-it-yourself, father-and-son adventure.” says Paul.
When Leon was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. “The doctor said Leon should first learn to get full use out of the hand he was in his early teens. “The doctor said Leon should first learn to get full use out of the hand he was born with.” says Paul. As Leon got older, his father looked into buying a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution.
One day, Paul discovered a vides on the Internet about Robohand, a prosthesis created with a 3D printer. He downloaded the free instructions and called Robohand’s creators for advice. They told him all he needed was a 3D printer--which costs around $2,000---and some materials.
Luckily, Leon’s school had recently purchased a 3D printer and it offered to help Paul build the hand for Leon. “We used a soccer shin guard(护胫), cardboard, and tape. They cost about $10. says Paul.
With his new hand, Leon can do things better. “I can help my mom more, because now I can carry two grocery bags.” he says.
Leon’s father has already built several hands for Leon. Leon helps design each one. He says there’s one thing in particular that he wants to do with a future prosthesis. “The goal,” he says, “is to be able to tie my shoelaces(鞋带).
1. Why did Leon’s doctor disapprove of his using a prosthesis in his childhood?A.The prosthetic technology was underdeveloped then. |
B.A prosthesis was very expensive at that time. |
C.To master the disabled hand was important. |
D.The original hand could do many tasks. |
A.collecting money on the Internet | B.buying a prosthetic hand |
C.purchasing a 3D printer | D.printing a hand |
A.cheap and common | B.strange and valuable |
C.personal and lovely | D.basic and solid |
相似题推荐
【推荐1】There is an old saying----“The only good snake is a dead snake“ I disagree .I know some people like their smooth pets,but I hate them. I shake from head to foot even whenI see them on TV
One day I stepped over one in my front yard,, and I probably set a record for the fastest runner and the loudest screamer in my town. And I almost had a heart attack when I walked through my house that night after I saw the snake. For that my husband received a serious warning about leaving his belt on the floor. So you can imagine my response when I saw the news about the lost 8-foot long cobra of a zoo in the Orlando area where I had lived a few weeks ago and it still frightened me . After days of search, they gave up. Then a few days ago, I read about its return. A young lady went out to the car in her garage. There she heard hissing coming from under the car. She immediately called the officers at Animal Control. You guessed it. An 8--foot king cobra was hanging out under the car. It was frightening.
We might not have a king cobra hanging out around us, but maybe a snake is hiding around to see how it can damage us. We need to keep our guard up. I think if the young lady had kept her garage door shut, the king cobra might not have made it to the garage.
1. What almost caused the author to get a heart attack?A.Seeing a snake on TV |
B.Seeing her husband’s belt on the floor. |
C.Stepping over a snake in her front yard. |
D.Reading the news about the lost king cobra. |
A.It was killed by the young lady. |
B.It was sent back to the wild. |
C.It ran away from the garage. |
D.It was returned to the zoo. |
A.kill all snakes. |
B.watch out for snakes. |
C.know where snakes are. |
D.always keep our doors shut |
【推荐2】Maybe you’ve heard about the saying, “A bird with a broken wing will never fly as high.” I’m sure that T. J. Ware was made to feel this way almost every day in school.
By high school, T. J. was the most famous troublemaker in his town. He got into lots of fights. He failed almost every exam but was passed on each year to a higher grade level. Teachers didn’t want to have him again the following year.
When I showed up to lead the first training for a leadership retreat, a program designed to have students become more involved in their communities, the community leaders told me about T. J. Ware, the boy with the longest arrest record in the history of town. Somehow, I knew that I wasn’t the first to hear about T. J.’ s darker side as the first words of introduction.
At the start of the retreat, T. J. didn’t readily join the discussion groups and didn’t seem to have much to say. But when his group started a discussion about positive and negative things that had happened at school that year, he joined in and had clear thoughts on those situations, and the other students in his group welcomed his comments. Suddenly, T. J. felt like a part of the group, and soon he was treated like a leader. He was saying things that made a lot of sense, and everyone was listening. By the end of the retreat, he had joined the Homeless Project team. He knew something about poverty, hunger and hopelessness. The other students on the team were impressed with his ideas and love for the homeless. They elected T. J. vice-chairman of the team.
Two weeks later, the Homeless Project team organized a communitywide service project — a giant food drive. Seventy students led by T. J. collected a school record: 2,854 cans of food in just two hours, enough to take care of poor families in the area for 75 days. The local newspaper covered the event with a full-page article the next day. T. J.’ s picture was up there for doing something great.
T. J. reminds us that a bird with a broken wing only needs mending. But once it has healed, it can fly higher than the rest.
1. What can be learned about T. J. before the author met him?A.He didn’t have a good teacher. | B.He was feeling hurt every day. |
C.He would graduate the next year | D.He was not welcome in the school. |
A.his words were meaningful | B.he was part of the group |
C.he joined the leadership retreat | D.his deeds were famous at school |
A.life on campus | B.cultural discoveries |
C.encouraging stories | D.training programs |
Tom and his cousin took a boat trip. When they got on the boat, every passenger should answer a question raised by the keeper. If the passenger answered “yes", he or she got one gift. If the passenger answered “no", he or she got two gifts. Tom and his cousin saw all about this. Now it was their turn. The keeper came up to them and asked, “Are you a good sailor?" Tom wanted to get two gifts, so he answered “no” loudly, at the same time he said, "I have never been a sailor. How could I be a good sailor?" The keeper gave him two gifts. His cousin gave the same answer, so he got two gifts, too.
The boat started off. The passengers began to open their gifts. Tom and his cousin did the same. They found that one of the two gifs was a small bottle of drinking water, the other was a seasick tablet . Tom had a look at a "yes" passenger's gift. It was a nice chocolate. Tom shouted at the keeper, "We are never seasick. Why do you give us seasick tablets?"
1. Tom and his cousin worked as sailors.2. The keeper would ask the passengers questions after the trip.
3. Tom and his cousin answered "no" because they wanted two gifts.
4. Anyone who answered "yes" got a nice chocolate.
5. Tom and his cousin were cheated by the keeper.
【推荐1】“Are you okay?” My brother Matthew asked from the driver’s seat as we hung upside down, trapped by our seat belts and covered in sand. Off-roading (越野驾驶) on 85,000 acres of dunes (沙丘) in California had become our tradition. I felt the blood rushing to my head, my heart pounding like the loud bass in a car. It reminded me of the four bass-loving brothers who lived across from us growing up. As a little girl, I often wondered if Matthew and I would ever have their friendship.
When Matthew found out he was to have a baby brother, he was over the moon. But to everyone’s surprise, “It’s a girl!” His disappointment was obvious.
As soon as I could walk, my big brother was everything to me, my idol. But to him, I was an annoyance, though he found comfort in tormenting (捉弄) me. Yet, I put up with it, waiting for moments when he’d reach out from his loneliness.
The sibling relationship is unique, and it’s often the longest relationship we have in our entire lives. After learning that I missed him, Matthew unexpectedly invited me to visit him at university.In his room, he handed me a drink. We didn’t need many words; as siblings, we had a simple way of chatting.
He knew about my struggles — the family secrets — and became my rock. When I was excluded from the family Thanksgiving, he refused to attend without me. Instead, we had dinner — just the two of us.
My big brother, once a tormentor, had become my protector and friend. But after our off-roading accident, I saw him differently — vulnerable and unprotected. “Are you okay? Are you bleeding?” I checked his injuries. The man I’d seen as strong was now human, fragile.
As we got ourselves back upright, I realized it was time for me to be his protector. Our shared bond had grown even deeper. I looked at my big brother, and we both smiled. Without him, my life would be unimaginably different. It was my turn to protect him. Thankfully, we had let each other in.
1. Why did the author’s heart pound like the loud bass?A.Because she was reminded of the four brothers who loved loud bass. |
B.Because she admired the friendship between the four bass-loving brothers. |
C.Because she was trapped in the upside-down car. |
D.Because she liked listening to the loud bass in a car. |
A.Land on the moon. |
B.Greatly delighted. |
C.Totally disappointed. |
D.Extremely exhausted. |
A.He was excluded from the family Thanksgiving. |
B.He knew his own struggles and family secrets. |
C.He supported me when I was not included in the family gathering. |
D.He refused to attend the family Thanksgiving party with me. |
A.Creative and brave. |
B.Ambitious and romantic. |
C.Courageous and humorous. |
D.Thoughtful and protective. |
【推荐2】Collin was lying on his back when his sister, Mary, came in. From her red eyes, Collin could tell she felt homesick again.
Their family had moved to the Moon nearly four months ago. It still didn’t feel like home. The houses were cosy, but outside everything was gray and rocky and lifeless. There was even no weather there at all—no rain or snow or even wind.
“I miss everything, even the sound of rain on the roof,” Mary said sadly. “Worst of all, my birthday is in two days, and I don’t think Mom and Dad are planning anything special.”
She’s probably right, thought Collin. Life on the Moon was busy for scientists like their parents. He doubted if they had time to plan a party. If there was no party, maybe he could give his sister a gift. However, with limited room in their transport ship, each child had been allowed to bring only two toys from the Earth. Where could he find the gift?
The next day, as Collin wandered toward the agricultural center, he found some bamboo plants, which made good building materials. An idea flashed across his mind. He took a piece of bamboo plants, made tiny holes into it, then poured a handful of Moon cobblestones inside and sealed the open ends.
When it was done, Collin hurried home, holding the bamboo piece carefully. On seeing his sister, Collin said, “I have a present for you.” He handed his sister the bamboo stick. “Happy birthday!”
“What is it?” Mary asked, looking at it curiously.
“A rain stick,” said Collin. “Whenever you turn it over, the Moon cobblestones fall inside and it sounds like rain.”
Mary turned the stick, and the room was filled with a sound like rain drumming on a roof.
“It’s Moon rain!” she said. “It makes me feel like I’m home.” She smiled at Collin and turned the rain stick over again.
1. According to the text, what do we know about the Moon?A.Life there is busy. | B.Its weather is changeable. |
C.Living space there is limited. | D.Its surroundings are dull. |
A.It created a rain scene. | B.It was her dream birthday gift. |
C.It alleviated her homesickness. | D.It was made of good materials. |
A.Curious and careful. | B.Caring and skillful. |
C.Creative and enthusiastic. | D.Sensitive and knowledgeable. |
【推荐3】When I tell people I wrote a book with my dad, they usually say, “Wonderful.”
This was a beautiful idea, but it. was not the way. I, or my dad, ever thought about the cooperation (合作). Though we created something we are proud of, “Wonderful” is not the word either of us uses to describe the process. At first, my father disapproved (反对) of the cooperation and he thought it was more confrontation (对抗) than cooperation, I agreed. When we landed a book deal, we began a wring journey that was more difficult than either of us had expected, but also far more rewarding.
For almost three years, we met once or twice a week at my parents’ house and talked daily about the plan and the outline of each chapter. After the meeting, one of us would write a rough draft that the other would build on. I wanted the book to focus on positive vices (不良习惯): such as moderate (适度的) chocolate. However; my dad felt the book should include chapters dealing with things like walking and spending time with family. Finally, I saw it his way. He said the book was about more than just good advice. It was about encouraging people to enjoy life in healthy ways.
Writing this book was a reminder that our family members share not only our faults but also our strengths. My dad is smart, funny, critical and caring. He has a strong passion for the truth. I hope I share these great qualities. For this book, he researched each topic with an enthusiasm I had never seen from him, and he insisted that we constantly question and critically analyze every piece of information—even our own conclusions. He was determined to cooperate with me on a book, not because he could not write one on his own, but because he believed that we could create something better together than we could alone.
I am not sure. if our cooperation led. to better writing, but it led to a better writing experience.
1. What does the author think of the writing experience with his father?.A.It was easy and positive. | B.It was hard but worthwhile. |
C.It was interesting but hard. | D.It was funny and encouraging. |
A.The author’s father decided to write a book on his own. |
B.The author’s father stood in his son’s shoes to write the book. |
C.The author and his father once had different ideas when writing. |
D.The author thought that his father’s writing styles were out of fashion. |
A.Enthusiastic | B.Humorous |
C.Confident | D.Unconcerned |
A.To show that my father is smart, critical and caring. |
B.To show that writing a book is not an easy job. |
C.To show that cooperation is of great significance. |
D.To show that family members can share nice things. |