What’s _________ population of __________ capital of that country?
A. a; the B. the; a C. a; a D. the; the
科目:初中英语 来源:2015-2016学年山东东营恳利县八年级上学期期中英语试卷(解析版) 题型:单项填空
Jack is always ready those who are in trouble.
A. help B. helps C. to help D. helping
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科目:初中英语 来源:2016届江苏无锡江阴长寿中学九年级上学期12月月考英语试卷(解析版) 题型:单项填空
Alice, could you tell me ___________?
A. whether she had been married
B. what’s happened to you
C. how long Lily has caught a cold
D. how you call these animals
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科目:初中英语 来源:2015-2016学年辽宁大石桥水源二中八年级上学期期末模拟英语试卷(解析版) 题型:单词拼写
用所给词适当形式填空
1.We’re so glad _______(hear) the good news.
2.It may be quite _______(wind) in Shanghai at this time of year.
3.Did you have trouble _______ (solve) the problem?
4.Winnie agrees _______ (dance) at the party.
5.What _______ (happen) to the little girl?
6.She had breakfast ______(quick) and then went to work.
7.______(run) is very tiring.
8.The red shirt is ________ (cheap) of the three shirts.
9.The room is ______(dry) than that one.
10.Pay attention to ______(spell) when you do your English homework.
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科目:初中英语 来源:2015-2016学年辽宁大石桥水源二中八年级上学期期末模拟英语试卷(解析版) 题型:单项填空
—Have you bought for Linda’s birthday?—Not exactly. Just some flowers.
A. something unusual B. anything unusual
C. unusual something D. unusual anything
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科目:初中英语 来源:2015-2016学年湖南邵阳石齐学校八年级(平行班)上期中英语试卷(解析版) 题型:单项填空
--- What do you watch tonight?
--- I plan to watch I am a singer.
A. plan B. to plan C. plan to
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科目:初中英语 来源:2015-2016学年湖南邵阳石齐学校八年级(平行班)上期中英语试卷(解析版) 题型:单项填空
do you go to the movies?
---I go to the movies once a month.
A. How often B. How C. Why
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科目:初中英语 来源:2016届甘肃嘉峪关市九年级上学期末英语试卷(解析版) 题型:单项填空
Don’t be nervous. There is time left.
A. little B. a little C. few D. a few
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科目:初中英语 来源:2016届北京昌平区九年级上学期期末考试英语试卷(解析版) 题型:阅读理解
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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