题目内容

----I will miss my family when I go abroad for further study next year.

----Don’t worry. You can ________ them by email.

A. come up with B. get along with

C. make friends with D. keep in touch with

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短文填空。

根据下面短文内容,在短文的空格处填上一个恰当的词,使短文完整、通顺。

In 1971 , a poor young man was traveling across the country , trying to make a new start for himself . On the way, he had completely run out of 1. , so he had no food to eat and had to live in his car.

This continued until one morning. After a week of sleeping in his car , he walked into a restaurant and ordered a big breakfast . After eating his first good meal in weeks, he found he had to 2. to the waiter, telling him he had lost his wallet . He was so embarrassed that his face turned red. The waiter, also the owner, walked behind the young man’s seat. He bent down(弯腰), and stood up 3. a $20 bill in his hand . It seemed as if it had fallen on the floor. “Son, you must have dropped this . ” the owner said . The young man was so 4. that he couldn’t believe his eyes ! He quickly 5. for the breakfast and headed west.

On the way out of town, he realized, “ Maybe 6. dropped the money at all . Maybe the owner of the restaurant just knew I was in trouble and he helped me in a way that didn’t embarrass me . What a kind person he is ! 7. I have the chance in the future; I will do the same to help others. ”

Now older, the man lives near Kansas City. Each year he gives away thousands of dollars to poor people. He is 8. as the “Secret Father Christmas”, because at Christmas time each year, he personally hands money out to those homeless people on the streets. Last year, he gave more than $50,000 away in Kansas City.

You’ve heard of 3D printing from newspaper and TV programs. It can “print” in plastic, metal, nylon, and over a hundred other materials. 3D printing technology has been around since the 1980s, it was not widely used until the early 2010s. The first working 3D printer was created in 1984 by Chuck Hull.

3D printers use many different types of technologies, but they all share one thing in common: they create a three-dimensional(维度的) object by building it layer(层), by continuing layer, until the whole object is completed. Imagine a baker lay down each layer one at a time until the whole cake is formed. 3D printing is somewhat similar, but just a bit stricter. How can 3D printers work so well? The most important thing-a program, a 3D printer also needs to have instructions for what to print from a computer. It needs a file as well. The file which is a Computer Aided Design (CAD) paper is created with the use of a 3D modeling program. The program creates a paper that is sent to the 3D printer. Along the way, software pieces the design into hundreds, or more likely thousands of layers. The 3D printer builds up one layer at a time, from the bottom to the top, until the object is done.

3D printings can be used for making many kinds of things such as machine parts, daily life objects, even human organs(器官) using a person's own cells.

Nowadays, Marc. Dillon founds a project which deals with many world famous paintings like Leonardo da Vinci’s Mona Lisa, Van Gogh’s Sunflower with 3D technology. This project helps the blind people enjoy the fantastic art through touching. In order to provide a good user experience, these 3D paintings have special instruments which can tell people what they touch.

1.The first working 3D printer was created in _________.

A. 1980 B. 1984 C. 2001 D. 2010

2.From Paragraph 2, we can know that_______________.

A. how a 3D printer works

B. what a 3D printing is

C. questions of a 3D printer

D. uses of a 3D printer

3.According to the passage, ___________can help the blind know what they touch.

A. CAD paper

B. Machine parts.

C. The world famous paintings

D. Special instruments

4.Which of the following is true?

A. 3D printers use 3 types of technologies.

B. 3D printers make printings from the top.

C. 3D printers work as a baker makes a cake.

D. 3D printers piece the design into a few layers.

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