阅读下列短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

An old man wanted to retire because of his poor health.The was in deciding which son would take his place.As his children gathered to his birthday, the father announced his .The old man took out two boxes and said to his two sons.“Each of you take one.I want each of you to it with what you believe to be the most thing for our successful business. your choices, I will decide who will take the business,” father said.The next days the families and employees could sense the spirit of between the boys.

It was January 1st and the family to celebrate again.“Please with me what’s in your box!” father said.The first son said, “It’s outside on the back of truck.The box you gave me was much too .” Father walked to the window and from that distance could see all.With a deep tone of , he asked the other son,“What do you have to give?”The son his father the box.The old man looked inside and with great looked up at his son .“It’s !” father said .“Are you telling me that you have found nothing of value in our business?”

“On the contrary,” he said.“I could not place I found most valuable in a box.How does one measure the value of quality and honesty? What size box would the loyalty(忠诚) of our employees and customers? How big of a room would I need for our workers who have from our generous pay and health plan? Finally, father, the most valuable possessions(财富) I hold are the love of you and mother.”

It was what decision was made that day.There will come a time when each of us will be asked by our father to share what we value most.I hope your box is empty.

1.A.praise B.challenge C.suggestion D.advice

2.A.enjoy B.concern C.celebrate D.honor

3.A.retirement B.experience C.money D.knowledge

4.A.cover B.provide C.combine D.fill

5.A.comfortable B.beautiful C.valuable D.adjustable

6.A.Based on B.Stood for C.Protected from D.Dressed up

7.A.up B.over C.down D.off

8.A.teamwork B.achievement C.competition D.communication

9.A.forced B.refused C.adjusted D.gathered

10.A.send B.publish C.share D.write

11.A.big B.small C.light D.large

12.A.happiness B.illness C.sadness D.loneliness

13.A.posted B.packed C.wrapped D.handed

14.A.delight B.shock C.mystery D.devotion

15.A.empty B.wonderful C.terrible D.ugly

16.A.where B.when C.how D.what

17.A.sensed B.measured C.hold D.compared

18.A.benefited B.suffered C.learned D.heard

19.A.severely B.luckily C.sadly D.slightly

20.A.obvious B.nervous C.anxious D.mysterious

Imagine this: you get up in the morning and put on a custom printed T-shirt. Then you eat some 3-D printed food and relax on your printed sofa. Perhaps you take a ride in a printed electric car to the hospital to get a printed tooth fitted.

Though some of these things may seem impossible, they’re closer to reality than you might think. The world of 3-D printing is coming to a store near you soon.

The idea of 3-D printing is to produce complicated shapes in a very personalized way. If you want to make a totally new object, you need to make a virtual design in a CAD(computer aided design)file first. Or you can use a 3-D scanner to make a digital copy of an object. Then, based on the design or copy, the 3-D printer makes paper-thin slices out of liquid, plastic, or metal and puts them together to create the object you want.

There are many areas in which 3-D printing can change our lives. One such area is health care. Researchers have developed simple 3-D printed organs, which can be used in life-saving operations. A 17-year-old boy in the US has also recently developed a brain-powered, 3-D printed replacement hand. From heart monitors to fake limbs(四肢), we can soon be living longer thanks to 3-D printed technology.

Another area that 3-D technology looks sure to change is food. Can you imagine being able to print your favorite dishes at home at the touch of a button? Even big companies are behind the trend. Hersheys, one of the largest chocolate makers in the world, recently announced that it would start producing chocolate with the help of 3-D printers. NASA, the US space agency, has reportedly spent $125,000 (767,594 yuan) developing a “3-D pizza printer”.

It is not yet clear how long it will take until 3-D printers are available to everyone. But one thing is for sure: the possibilities are endless.

1.The purpose of the first paragraph is to ________.

A. list some major 3-D printing breakthroughs

B. describe the characters of 3-D printing

C. picture a future life with 3-D printing

D. describe the benefits that 3-D printing has brought to our lives

2.Compared with traditional manufacturing procedures, 3-D printing ________.

A. isn’t practical in daily life

B. relies less heavily on the use of 3-D scanners

C. can produce complicated products in larger sizes or numbers

D. has an advantage in meeting the personal needs

3.We can infer from the article that ________.

A. there is still a long way to go before everyone can have access to 3-D printing

B. 3-D printed organs and limbs are as effective as real ones

C. big food companies are major players in the 3-D printing industry

D. people can create any object with any material by 3-D printing

4.What can be the best title for the text?

A. What is 3-D printing?

B. A new technology-3-D printing.

C. How to use 3-D printing?

D. The development of 3-D printing.

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