2019中考（人新）英语课本回扣习及答案：七上U6--9
一、阅读理解。
阅读下列短 文，从每小题所给的A、B、C、D四个选项中选出最佳选项。
Amos Dudley, a 24-year-old boy who studies digital design at New Jersey University of Technology, felt ashamed about his teeth. But being a student, Dudley didn’t have the money to get braces(牙箍). So, he decided to 3-D print his own and marked down the DIY project in a recent blog post. His braces totaled less than $60, and after wearing them for 16 weeks, his teeth are also getting straighter.
Months ago, he mentioned on his blog that he avoided smiling for a while because he was unhappy with his teeth.
However, clear braces can get pricey, costing up to $8,000. But after studying some images of these expensive clear braces, something comes up on him--they looked like that one which can come from a 3-D printer.
So he decided to hit up his school’s 3-D printing equipment and scanned and printed models of his teeth. He then made non-harmful plastic molds (模子) around them to make 12 sets of braces.
Dudley, who does not recommend attempting any of this at home said that he didn’t ask a dentist for his project. But the student did get information from journal articles and textbooks. And though this was a perfectly friendly choice to buy braces. He didn’t accept the project just to save money--he was also up for the challenge. “When I realized that I could do something that was a little bit special, while proving my skills as a designer and a maker, and fixing something that was making me self-conscious for actually free, I felt it was more than worth the risk.” he said.
1. Dudley got the information on making a 3-D printed braces from___________.
A. a professional magazine B. a recent blog post
C. journal articles and textbooks D. a 3-D printer user
2. Why did Dudley choose a 3-D printer braces over-buying them?
A. He didn’t have enough money. B. He felt ashamed about his teeth.
C. He studies digital design at school. D. He wanted to be a famous person.
3. What made Dudley get the idea of using 3-D printed braces?
A. The advice from the dentist. B. The advice from his friends.
C. His major studies at university. D. The possibility of making 3-D braces.
4. According to the page, Dudley___________.
A. has got a 3-D printer at his home
B. did the project totally for challenge.
C. made each set of braces cost less than 5 dollars
D. supports others to try making their own 3-D braces
5.The article is mainly about___________.
A. a 3-D printer made braces cheaper
B.A college student made fantastic 3-D braces.
C. digital design major student created 3-D printers
D.3-D braces with non-harmful plastic molds became popular
