Leon,12,wasbornwithoutfingersonhislefthand.Thatdidn'...

問題詳情：

    Leon, 12, was born without fingers on his left 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 raw.

  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

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 video 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一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（護脛），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 ral 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 tells the

reporter from the local evening paper,“is to be able to tie my shoelaces:'

24. Why did Leon's doctor disapprove of his using a prosthesis in his childhood?

    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.

25. Leon's father managed to get Leon a new hand by    

    ecting money on the Internet.   B. buying a prosthetic hand

    C. purchasing a 3D printer         D. printing a hand

26. The materials used for Leon's hand can be described as  

    A. cheap and common  B. strange and valuable

    C. personal and lovely  D. basic and solid

27. Where can the passage be taken from?

  A. An advertisement  B. A newspaper  C. A poster  D. A travel guide

【回答】

 CDAB

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