You’ve heard of 3D printing from newspaper an...

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.

九年级英语阅读理解中等难度题查看答案及解析

— Have you ever heard Jessie·J, the famous singer of popular program on Hunan TV?

— Of course, she _______ to China for the program many times.

A.arrived B.has gone C.has been D.went

九年级英语单选题中等难度题查看答案及解析

Dear Laura,

I just heard you tell an old story of gift giving and unselfish love in your program. You doubted that such unselfish love would happen in today’s world. Well, I’m here to give you ____.

I wanted to do something very ___ for my fifteen-year-old son, who has always been the perfect child. He ____ all summer to earn enough money to buy a used motorcycle. Then, he spent hours and hours on it ___ it looked almost new. I was so ____ of him that I bought him the shiniest helmet and a riding outfit.(一套服装)

I could ____ wait for him to open up his gift. In fact, I hardly slept the night before. Upon awakening, I went to the kitchen to start the coffee, tea, and morning food. In the living room was a beautiful keyboard with a __: “To my wonderful mother, all my love, your son.”

I was so __. It had been a long-standing (长期存在的) joke in our family that I wanted a piano so that I could ____ lessons. “Learn to play the piano, and I’ll get you one.” was my husband’s response.(反应)

I stood there shocked, crying a river, asking myself how my son could ____ this expensive gift.

Of course, the house awoke, and my son was excited with my reaction. Many kisses were ____, and I immediately wanted him to ___ my gift.

As he saw the helmet and outfit, the look on his face was not ____ what I was expecting. Then I ____ that he has sold the motorcycle to get me the keyboard.

Of course I was the proudest mother ever on that day, and my feet never hit the ground for a month.

So I wanted you to know, that kind of love still exists(存在) and lives even in the ever-changing world of me, me, me!

I thought you’d love to __ this story with me.

Yours,

Hilary

P.S. The next day, my husband and I bought him a new “used” already shiny motorcycle.

1.A. an exampleB. advice    C. support    D. courage

2.A. polite    B. similar    C. special    D. private

3.A. played    B. studied    C. traveled    D. worked

4.A. after    B. before C. unless    D. until

5.A. sure    B. fond    C. proud    D. confident

6.A. perhaps B. really    C. almost    D. hardly

7.A. note    B. notice    C. word    D. sign

8.A. disturbedB. frightening    C. surprisedD. surprising

9.A. give    B. take    C. draw    D. teach

10.A. present　 B. afford    C. find    D. order

11.A. exchanged　　 B. happenedC. helpedD. lost

12.A. tear    B. open    C. check    D. receive

13.A. purely B. basically　　　　 C. obviously    D. exactly

14.A. realized B. remembered C. imaginedD. supposed

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

九年级英语完型填空中等难度题查看答案及解析

Dear Laura,

I just heard you tell an old story of gift giving and unselfish love in your program. You don’t know whether it is true that such unselfish love would happen in today’s world. Well, I’m here to give you ________.

I wanted to do something very ________ for my fifteen-year-old son, who has always been the perfect child. He worked all summer to earn enough money to buy a used motorcycle. Then, he spent hours and hours on it ________ it looked almost new. I was so proud of him that I bought him the shiniest helmet(头盔)and a riding outfit(全套装备）.

I could hardly wait for him to open up his gift. In fact, I couldn’t sleep the night before. Upon awakening, I went to the kitchen to ________ the coffee, tea, and morning dishes. In the living room was a beautiful keyboard with a ________: “To my wonderful mother, all my love, your son.”

I was so surprised. It had been a long-standing joke in our family that I wanted a piano so that I could take lessons. “Learn to play the piano, and I’ll get you one” was my husband’s promise.

I stood there shocked, crying a river, ________ myself how my son could ________ this expensive gift.

Of course, the house awoke, and my son was very pleased with my reaction（反应）. Many kisses were exchanged, and I immediately wanted him to ________ my gift.

As he saw the helmet and outfit, the look on his face was not exactly what I was expecting. Then I realized that he had sold the motorcycle to get me the keyboard. Of course I was the proudest mother ever on that day, and my feet never hit the ground for a month.

So I wanted you to know, that kind of love is ________ present and lives even in the ever-changing world of me, me, me!

I thought you’d love to ________ this story.                                 Yours,

Hilary

1.A. hope                           B. advice                             C. spirit                           D. courage

2.A. strange                       B. similar                             C. special                            D. private

3.A. after                            B. before                            C. unless                             D. until

4.A. start                                 B. cook                        C. set                                   D. serve

5.A. sign                                  B. notice                              C. word                      D. note

6.A. asked                          B. asking                             C. to ask                              D. ask

7.A. present                       B. find                            C. afford                     D. order

8.A. tear                                 B. open                       C. check                              D. Receive

9.A. only                             B. still                              C. ever                             D. even

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

九年级英语完型填空中等难度题查看答案及解析

Perhaps you have heard of Peter Dinklage from the roles he has played in popular TV series such as Game of Thrones (《权利的游戏》). But few know of the man behind the character and his story. His life _______ that a little body can have huge energy.

The famous actor, who earned three Emmy awards and a Golden Globe award, is just 135 cm tall. His father, mother and brother look like _______ people. But Dinklage has been different from the others since his childhood. The boy was born with a common form of dwarfism (侏儒症). As a result, Peter’s legs and arms stopped growing, while his head continued becoming bigger.

There’s no doubt that Dinklage’s look was a source of trouble at first. The boy was _______and bullied (欺负) by other kids. He felt lonely but he didn’t look down upon himself. When he was in the sixth grade, he played his first role in a school play. He was pleased by the audience’s _______ to the show. So he decided to become an actor in the future.

After he graduated from high school, Dinklage entered Bennington College, where he studied performing arts. He _______ met several special teachers and friends who managed to help him turn his unusual look into advantage there, which made him unique (独特的). Since then, he has acted in lots of famous films and TV series.

Dinktlage has been looked as a rote model for people with dwarfism. When Dinktage was asked in 2012 whether he saw himself as a spokesman (代言人) for the _______ of little people, he said, “Everyone’s different. Every person’s size has a different life, a different history, and different ways of dealing with it. My size doesn’t define (下定义) me. It’s just part of who I am.”

1.A.notices B.discovers C.reports D.proves

2.A.unusual B.ordinary C.rich D.stupid

3.A.laughed at B.showed off C.picked out D.looked after

4.A.duty B.response C.excuse D.stress

5.A.luckily B.seriously C.quietly D.rarely

6.A.disadvantages B.hobbies C.rights D.challenges

九年级英语完型填空困难题查看答案及解析

Have you heard about the TV program reader ______ is very popular now.

A. which　　 B. who　　 C. whose　　 D. what

九年级英语单选题简单题查看答案及解析

____ of people enjoy the TV play You Come From the Star. And 70% of the music in it ____ very original (独特).

A.Two third; are

B. Two thirds; is

C. Two thirds; are

九年级英语单项填空中等难度题查看答案及解析

---- The TV play You Who Come from the Stars is popular recently.

----Yes. It is the only program _______ I watched this month.

A.who　　　　　 B. that　　　　　 C. where　　　　　 D. when

九年级英语单项填空中等难度题查看答案及解析

---- The TV play You Who Come from the Stars is popular recently.

----Yes. It is the only program _______ I watched this month.

A. who　　　　　　　　 　 　 B. that

C. where　　　　　　 　　 D. when

九年级英语单项填空中等难度题查看答案及解析

Nowadays people can get much _______ from TV, newspapers and the Internet.

A. ideas　　　　　　 B. stories

C. photos　　　　　 D. information

九年级英语单项填空中等难度题查看答案及解析