CImaginehavinganidea,drawingit

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Imagine having an idea, drawing it on paper, bringing it to a store and seeing it turned into a physical object．This is now possible with the help of 3D printers．Such machines were once used just by universities and big companies．But now, stores with 3D printing services are appearing around the United States．
Bryan Jaycox and his wife opened The Build Shop LLC in Los Angeles two years ago．The store is filled with tools like a laser cutter, an industrial sewing machine and 3D printers．Bryan Jaycox requires $ 15 an hour to print an object．He also charges a fee depending on the size of the object and up to $ 50 an hour for design and labor services．
The Jaycoxs also offer 3D printing classes for anyone who is interested．One of the students in a recent class was Ki Chong Tran．He plans to open a 3D printing business in Cambodia．"The demand has been amazing．It's been much more than I would have imagined," said Ki Chong Tran．
"I think 3D printing is going to be huge． It's going to make a huge impact on society as a whole," he added．
Mr Jaycox predicts that within five years, 3D printing technology could become
more consumer friendly．
But Ki Chong Tran says even current technology can make a difference in a developing country like Cambodia．"With 3D printing you can give them tools, and you put it in their hands so they are responsible more for their own development．
They learn skills beyond just learning English and becoming a tour guide or something like that or working at a bank．You can actually create things that give value to the world," said Ki Chong Tran．
He says it's not just Cambodia but anywhere where there is a 3D printer, it can turn a good idea into reality．
We learn from Paragraph l that 3D printing_________．

A．is now available to ordinary people

B．first appeared in the United States

C．can turn your every dream into reality

D．is now only used by universities

Bryan Jaycox opened The Build Shop LLC to__________．

A．sell 3D printers and different kinds of tools

B．produce all types of printing machines

C．offer 3D printing classes and services

D．design different types of 3D printers

In Mr Jaycox's opinion, within five years 3D printing will_________．

A．make it easier to do business

B．be accessible to all consumers

C．change the way of social contact

D．bring about more profits to the sellers

How will 3D printing technology benefit developing countries according to the text?

A．It helps the people work efficiently at a bank．

B．It will promote the learning of English

C．It will accelerate the development of tourism．

D．It offers them a new way of development．

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相关试题

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a false sense of security.
New research shows long-term sleep loss cannot be cured that easily. Scientists researched the effects of short- and long-term sleep loss and found that those who suffer long-term sleep loss may function normally soon after waking up, but experience steadily slower reaction times as the day goes by, even if they had tried to catch up the previous night.
The research has important safety significances in an increasingly busy society, not just for shift-workers but for the roughly one in six Americans who regularly get six hours or less of sleep a night.
“We know that staying awake 24 hours without sleep will affect your performance to do all sorts of things, and this effect equals to drinking too much when driving,” said lead researcher Dr. Daniel Cohen of Boston’s Brigham and Women’s Hospital. But when those who suffer long-term sleep loss become all-nighters, “the harm is increased ten times,” Cohen said.
The National Institutes of Health says adults need seven hours to nine hours of sleep for good health. Regularly getting too little sleep increases the risk of health problems, including memory impairment and a weakened immune system. More immediately, too little sleep affects reaction times; sleepiness is to blame for car crashes and other accidents.
It has critically important complicated and unexpected results for anyone who works “crazy hours” and thinks they are performing fine with a few hours of weeknight sleep, said Harris, director at New York’s Montefiore M edical Center. “Don’t think you can just bank up your sleep on the weekend, because it doesn’t work that way,” he warned.
61. The text mainly advises people ______.
A. to sleep more time                          B. to sleep in on Saturday
C. to sleep scientifically                      D. to sleep little on weekend
62. People with long-term sleep loss ______.
A. are quicker in thinking                  B. may feel refreshed soon after waking up
C.are surely energetic                         D. can have a strong sense of security
63. What can we learn from the text?
A. Most of the Americans get six hours or less of sleep a night.
B. Staying up is worse for those who suffer long-term sleep loss.
C.Traffic accidents have little to do with sleepiness.
D. One in six Americans are all-nighters.
64. Which of the following is the immediate effect of long-term sleep loss?
A. Health problems                             B. Immune system
C. Reaction times                               D. Memory impairment
65. The underlined phrase “bank up” in the last paragraph most probably means ____.
A. pile up               B. pick up              C. add up                     D. build up

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I made a promise to myself on the way down to the vacation beach cottage. For two weeks I would try to be a loving husband and father. Totally loving. No ifs, ands or buts.
The idea had come to me as I listened to a talk on my car radio. The speaker was quoting a Biblical passage about husbands and their wives. Then he went on to say, “Love is an act of will. A person can choose to love.” To myself, I had to admit that I had been a selfish husband. Well, for two weeks that would change.
And it did. Right from the moment I kissed Evelyn at the door and said, “That new yellow sweater looks great on you.” “Oh, Tom, you noticed”, she said, surprised and pleased. Maybe a little puzzled. After the long drive, I wanted to sit and read. Evelyn suggested a walk on the beach. I started to refuse, but then I thought, “Evelyn’s been alone here with the kids all week and now she wants to be alone with me.” We walked on the beach while the children flew their kites.
So it went. Two weeks of not calling the Wall Street firm where I am a director; a visit to the shell museum though I usually hate museums. Relaxed and happy, that’s how the whole vacation passed. I made a new promise to keep on remembering to choose love.
There was one thing that went wrong with my experiment, however. Evelyn and I still laugh about it today. On the last night at our cottage, preparing for bed, Evelyn stared at me with the saddest expression.
“What’s the matter?” I asked her.
“Tom,” she said in a voice filled with distress, “ I don’t?”
“What do you mean?”
“Well…that checkup I had several weeks ago…our doctor…did he tell you something about me? Tom, you’ve been so good to me…am I dying?”
It took a moment for it all to be understood. Then I burst out laughing.
“No, honey,” I said, wrapping her in my arms. “You’re not dying; I’m just starting to live.”
56. In the first paragraph, “No ifs, ands or buts” probably means ______.
A. Unintentionally                              B. Independently
C. Impressively                                 D. Unconditionally
57. From the story we may infer that Tom drove to the beach cottage ______.
A. with his family                              B. with Evelyn
C. alone                                           D. with his children
58. During the two weeks on the beach, Tom showed more love to his wife because ______.
A. he was determined to be a good husband
B. he had made a lot of money in his Wall Street firm
C. she looked lovely in her new clothes
D. the doctor said his wife was seriously ill
59. The author says, “There was one thing that went wrong with my experiment.” What does “one thing” refer to?
A. He praised her sweater, which puzzled her.
B. She insisted on visiting a museum, which he hated.
C. He knew something about her illness but didn’t tell her.
D. He was so good to her that she thought she must be dying.
60. By saying “I’m just starting to live,” Tom means that ______.
A. he is just beginning to understand the real meaning of life
B. he is just beginning to enjoy life as a loving husband
C. he lived an unhappy life before and is now starting to change
D. he is beginning to feel regret for what he did to his wife before

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IV. Reading Comprehension (40 points)
Directions: Read the following four passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A,B,C and D. Choose the one that fits best according to the information given in the passage you have just read.
(A)
The first day of school our professor introduced himself and challenged us to get to know someone we didn’t know. I stood up to look around when a gentle hand touched my shoulder. I turned around to find a wrinkled, little old lady beaming up at me with a smile that lit up her entire being.
She said, “Hi, girl! My name is Rose. I’m 87 years old. Can I give you a hug?”
I laughed and enthusiastically（热情地）responded, “Of course you may!” and she gave me a giant squeeze.
“Why are you in college at such a young, innocent age?” I asked. She jokingly replied, “I’m here to meet a rich husband, get married, have a couple of children, and then retire and travel!”
“No seriously,” I said. I was curious what may have motivated her to be taking on this challenge at her age.
“I always dreamed of having a college education and now I’m getting one!” she told me.
Over the course of the year, Rose became a campus icon and she easily made friends wherever she went. She loved to dress up and she reveled in the attention bestowed upon her from the other students. She was living it up.
At the end of the semester we invited Rose to speak at our football banquet. I’ll never forget what she taught us.
“We do not stop playing because we are old; we grow old because we stop playing. There are only two secrets to staying young, being happy, and achieving success. You have to laugh and find humor everyday. You’ve got to have a dream. When you lose your dreams, you die!” she said.
“There is a huge difference between growing older and growing up. If you are nineteen years old and lie in bed for one full year and don’t do one productive thing, you will turn 20 years older. If I am 87 years old, and stay in bed for a year, and never do anything, I will turn 88. Anybody can grow older. But every minute counts for young men,” she added.
“The idea is to grow up by always finding the opportunity in change. Have no regrets. The elderly usually don’t have regrets for what we did, but rather for things we did not do. The only people who fear death are those with regrets.”
She concluded her speech by courageously singing “The Song of Rose”. She challenged each of us to study the lyrics（歌词）and live them out in our daily lives.
At the year’s end, Rose finished the college degree she had begun all those years ago. One week after graduation Rose died peacefully in her sleep.
51. Rose made herself known to the author in a ______ manner.
A. serious         B. cold           C. humorous          D. crazy
52. From the information provided in the passage, we know ______.
A. Rose finished the college degree within a year
B. Rose did realize her dream of meeting a rich husband and getting married through college
education
C. Rose enjoyed her campus life very much
D. Rose grew so old that she stopped playing
53. Rose delivered the speech ______.
A. at the graduation                                B. ended with “The Song of Rose”
C. which she prepared carefully               D. to challenge all the other speakers
54. According to her speech, ______.
A. whenever you have a dream, you succeed
B. all people don’t grow up while growing older
C. Rose usually regretted having done something
D. a nine-year-old is as old as a 87-year-old if he doesn’t do anything

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（D）
Read a whole book in English? Me?
Yes, you. Believe it or not, that may be easier than you think. Not all classics are too difficult or complicated. So you’re not limited to the simplified versions. And the easier books are not all for children.
Books in their original versions may send you to the dictionary. And you might not understand everything you read. But reading one from cover to cover will give you a real sense of accomplishment（成就）. The key is to find the right books. Let’s take a look at these.
The Lion, the Witch and the Wardrobe (C.S. Lewis)
Stepping into an old wardrobe, four English schoolchildren find themselves in the magical world of Narnia. On this delightful land, they find friends among the many talking creatures. The children soon discover, however, that Narnia is ruled by the White Witch. Edmund, one of the children, falls under her power. Who can free Narnia? Only Aslan, the great and noble lion. He alone knows the Deeper Magic. But the children themselves must help fight the battle against the White Witch and those who serve her.
The Old Man and the Sea (Ernest Hemingway)
Santiago, an old Cuban fisherman, hasn’t caught any fish in more than 80 days. Sailing far out from land, the old man hooks an enormous fish. That begins an agonizing three day battle. First he struggles against the great fish. Then he must fight off the sharks that circle the little boat and threaten to eat his fish. Exhausted and bleeding, the old man arrives back at shore. But his fish, his beautiful fish . . .
Hemingway won the Nobel Prize for this superb story of strength and courage, of victory and regret.
A Wrinkle in Time (Madeleine Lingle)
Meg’s father, a U.S. government scientist, has been missing for many months. He had been experimenting with time travel when he mysteriously disappeared.
Now Meg, her little brother Charles Wallace and her friend Calvin will try to rescue him. But first they must outwit the forces of evil they encounter（遇到） on their journey through time and space. Can they find Meg’s father before it’s too late?
This novel is more than just a science fiction adventure. It’s an exploration of the nature of our universe.
The Pearl (John Steinbeck)
One day Kino, a poor Mexican pearl diver, finds a magnificent pearl. With it he dreams of buying a better life, new clothes and schooling for his son. Instead, it brings only evil. His wife pleads with him to get rid of it. "No," says Kino. "I will have my chance. I am a man." But when he kills a man who is trying to steal the pearl, Kino and his wife must run for their lives.This tale of dreams, justice and the power of greed is told simply and beautifully.
The Long Winter (Laura Ingalls Wilder)
It’s winter, 1880—1881, on America’s northern prairies. Mr. and Mrs. Ingalls and their four girls stay near the kitchen stove to keep warm. Heavy snowstorms cut them off even from neighbors. With the trains stopped, no supplies can reach the town. Food and fuel are running out. Day after day the girls must grind wheat for bread and twist hay to burn. At times they nearly lose the battle to keep their spirits up.
This story provides a fascinating glimpse into the life of early American settlers.
63. In the passage, the author intends to _______.
A. recommend a few simplified versions of classics
B. recommend a few original versions of classics
C. tell us how to read an English book from beginning to end
D. tell us how to find proper English books to read
64. In The Lion, the Witch and the Wardrobe, the White Witch is probably _____.
A. an evil woman with magic power           B. a friendly woman with magic power
C. a delightful talking creature                D. a powerful lion
65. The underlined word "outwit" in the passage probably means ______.
A. get rid of                              B. take advantage of
C. beat by being cleverer                   D. make the most of
66. Which book deals with history?
A. The Pearl.                            B. The Old Man and the Sea.
C. A Wrinkle in Time.                     D. The Long Winter.
67. A Wrinkle in Time is different from other books mentioned in the passage in that _____.
A. it is not a science fiction                 B. it tells a true story
C. it provides some scientific knowledge      D. it tells the battle between justice and evil

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(C)
My first performance in front of an audience was coming up soon.
I tried as hard as I could to remain calm, but my heart was racing. I stared down at my sweat-covered, shaking hands.
I looked up again at the audience, realizing that these were real people. They were not just my mum and dad, who would say, “Good job!” even if I messed up the entire piece.
What if I had the wrong music? What if I played the wrong notes?
As it turned out, I was never able to answer these questions because the spotlight (聚光灯) was waiting for me. I grasped my hands tightly together, drying off the sweat.
Slowly I walked to the mud-brown piano in the center of the room. It contained 88 demanding keys, which were waiting impatiently to be played. I swallowed the golf-ball-sized lump (隆起部分) in my throat and sat down. Slowly, I opened the music. Next, I rested my still shaking hands on the ivory (象牙色的) keys.
As my fingers played across the keys, I was becoming more unsure of my preparation for this moment. But the memory of my years of training came flooding back. I knew that I had practiced this piece so many times that I could play it backwards if requested.
Although at one point I accidentally played two keys instead of the intended one, I continued to move my fingers automatically (自动地).
My eyes burned holes into (were fixed on) the pages in front of me.
There was no way that I was going to lose my concentration. To keep this to myself, I leaned forward and focused carefully on the music.
When I came to the end of the page, a warning went off inside my head: DON’T MAKE A MISTAKE WHEN YOU TURN THE PAGE!
Needless to say, I obeyed myself with all my heart and mind. And, proud of my “page-turning” feat (技艺), I finished the rest of the piece without making a single mistake.
After the final note died away, a celebration went into action inside my head. I had finished. I had mastered the impossible.
59. The author was nervous before the performance because _______.
A. his or her mother and father weren’t present
B. the strong spotlight was shining onto the stage
C. he or she hadn’t mastered the entire piece
D. he or she had never performed in public before
60. The underlined phrase “mess up” in Paragraph 3 probably means ________.
A. put into disorder B. forget about C. stop halfway D. do well in
61. The author _________.
A. didn’t make any mistake in the performance
B. felt better at the beginning of the performance
C. paid all attention to nothing but his / her performance
D. lost his / her concentration sometimes during the performance
62. What did the author feel about his / her performance?
A. He / She thought it was comfortable and successful.
B. He / She thought it was very difficult but successful.
C. He / She thought he / she had never made a mistake during the performance.
D. He / She thought he / she played through the piece carefully but light-heartedly.

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