题目内容：

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.