题目
题型:不详难度:来源:
Hu told reporters on Saturday that the "Dawning 6000" supercomputer, developed by the Institute of Computing Technology of CAS and the Dawning Information Industry Company (DIIC), will adopt Loongson microchips for the first time as its core parts. It will have a computing speed of more than 1,000 trillion operations a second.
Making supercomputers with Chinese microchips is one of the nation"s major science and technology projects. Three organizations - the Institute of Computing Technology of CAS, Jiangnan Institute of Computing Technology and the National University of Defense Technology (NUDT) - have their own supercomputer projects.
According to their schedules, all three institutions will need to meet the target of using domestically(国内的) developed microchips by the end of this year. Hu said the new supercomputer will use fewer than 10,000 Loongson microchips, and will also be more energy-efficient.
Tianhe-1A, developed by NUDT in Hunan"s provincial capital Changsha, is the fastest supercomputer in the world. However, Tianhe-1A largely runs on 14,336 CPUs made by Intel, and 7,186 GPUs (processing units) from Nvidia, two US chip-makers.
Hu said there will be difficulties ahead as there is little affiliated equipment specially developed for these supercomputers. "We have enough supercomputers in China but still can"t make full use of them," He said.
Hu added that although the China-made CPUs have improved since they were first produced in 2002, they have a long way to go to compete with US chip-makers such as Intel.
小题1:What’s the best title for this passage?
A.The Arrival of Chinese Supercomputers |
B.Homemade CPUs with a Long Way to Go |
C.The Supercomputers of Three Organizations in China |
D.Homemade CPUs on the Way for Local Supercomputers |
A.Dawning 6000 | B.Loongson microchips |
C.DIIC | D.Tianhe-1A |
A. Not all the parts of Tianhe-1A are made by China.
B. Tianhe-1A is developed by CAS and DIIC.
C. Tianhe-1A will use fewer than 10,000 Loongson microchips.
D. NUDT has produced a most powerful supercomputer in China.
小题4:The underlined word “affiliated” can be replaced by_______.
A.cheap | B.suitable | C.expensive | D.modern |
答案
小题1:D
小题2:B
小题3:A
小题4:B
解析
试题分析:国产超级计算机将对外国芯片说再见而采取国产芯片同时还介绍了国产芯片研发和超级计算机的一些相关信息。
小题1:D 主旨大意题。由文章第一段可知。本文讲述的是国产的超级计算机将采用国产的芯片以及国产芯片研发和超级计算机的一些相关信息,选项B未能提及关键词supercomputers。故D正确。
小题2:B 推理题。由第二段adopt Loongson microchips for the first time as its core parts. It will have a computing speed of more than 1,000 trillion operations a second.可知提高运算速度的是Loongson microchips。
小题3:A推理题。由倒数第三段“Nvidia, two US chip-makers.”可知。选项C主语应该是the new supercomputer而不是Tianhe-1A。
小题4: B 猜词题。“附属的”。由“specially developed for these supercomputers”可知该词表示的是B项含义。
核心考点
试题【BEIJING - By the end of 2011 China-made supercomputers will say goodbye to forei】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
As children grow, develop, and move into early adolescence, contacts with one"s peers and the attraction of peer identification (认同)increases. As pre-adolescents begin rapid physical, emotional and social changes, they begin to question adult standards and the need for parental guidance. They find it good to turn for advice to friends who understand— friends who are in the same position themselves. By trying new things and testing their ideas with their peers, there is less fear of being laughed at.
There are two levels of peer pressure. The first is in the large group: for most teens a school or a youth group are examples. This is the situation that gets the most attention. The second is in the close relationship with one or several best friends. This is the situation that is sometimes disregarded. The large group puts a general pressure on its members. It sets the standard for clothing, music, entertainment, and "political correctness". The pressure can be avoided by keeping quiet or by putting on the appearance of agreement.
小题1:Why can’t some children follow their common sense?
A.Because they want to be liked by everybody. |
B.Because they don’t want to make fun of others. |
C.Because they are curious about their new friends. |
D.Because they think all the children will do the same. |
A.Parents | B.Teachers | C.Friends | D.Classmates |
A.unnoticed | B.mentioned | C.disagreed | D.avoided |
A.The reasons of peer pressure. |
B.The advantages of peer pressure. |
C.Peer pressure from close friends. |
D.Peer pressure from a youth group. |
![](http://img.shitiku.com.cn/uploads/allimg/20191211/20191211114609-77855.jpg)
Today, when a fire breaks out, you can be sure a citizen with a cell-phone camera has posted it to Facebook or Twitter, or sent it to the media. But up to now, that citizen has not been able to easily send images and details of what is happening to the people who need it most: police, firefighters and building-security people who must respond, and whose ability to help is often measured in minutes, if not seconds.
That"s about to change. A one-year old company called Elerts has developed a system that"s designed to mobile and social technologies to speed the flow of information between citizens and emergency workers in time of danger. The system involves free mobile applications—iPhone and iPad app(应用软件)is available now—that eyewitnesses can use to report incidents and get public-safety warnings. And Elerts is offering a management console(控制台)for security firms and universities to receive the reports and distribute warnings and instructions, like a map with the best evacuation route(疏散路线).
The service is the brainchild of Chris Russo, deputy fire chief in the coastal town of Hull, Mass. As mobile communications sped up, he grew increasingly frustrated by his inability to communicate effectively with colleagues and the public, particularly with people who are at the scene and might be able to provide help.
"Remembering situations when communications failed puts a pit in my stomach," Mr. Russo says. Last summer, he was in a search at a beach for a missing boy, who went into a bathhouse but didn"t come out. First responders feared an abduction (绑架) on the beach or shark attack. The child"s mother, who didn"t speak English well, was so sad that she couldn"t remember what color shorts he had on. Mr. Russo had no photo of the child, and no ability to turn to beachgoers.
Two long hours later, the boy was spotted by a low-flying helicopter lost and alone on the beach crying—a lucky break. "If 5 percent of beachgoers had an app to receive a message and send in sightings of a lost boy, the happy ending might have come much sooner," Mr. Russo said.
小题1:What is the passage mainly about?
A.A moving story of Chris Russo. | B.An app for reporting emergency. |
C.A cell-phone instant service. | D.An app for firm management. |
A.Makes me feel frustrated. | B.Causes a stomachache. |
C.Arouses my interest. | D.Leaves a hole in my stomach. |
A.have to carry out rescue work in minutes |
B.must send images and details immediately |
C.need images and detailed information badly |
D.have to turn to Facebook and Twitter for details |
A.advertise his creativity in communication |
B.show readers the working principle of the new system |
C.make the passage more interesting to read |
D.inform readers how Russo got the idea of the service |
The machine works by drawing in damp air through a filter(过滤器) and over a cooling element which changes it into water droplets.It can produce up to 12 liters a day.The Water Mill will also produce more water when storms pass over, as the humidity(湿度)in the air increases.In keeping with its ecodevelopment,the machine uses the same amount of electricity as three light bulbs.
Inventor Jonathan Ritchey said:“The demand for water is off the chart.People are looking for freedom from water distribution systems that are shaky and unreliable”.
The machine,which is about 3 feet wide,is likely to cost£800 when it goes on sale here in the spring.Its maker, Canadian firm Element Four, estimates that a liter of water will cost around 20 pence to produce.
Environmentalists claim half the world’s population will face water shortage because of climate change by 2080.One in five humans is said to lack access to safe drinking water.
The Water Mill is not effective in areas with below about 30 percent relative humidity, but with average relative humidity in England of more than 70 percent that won’t be much of an issue here.
小题1:According to the author, the biggest advantage of the machine is its ______.
A.little power use | B.unlimited source | C.proper size | D.high production |
A.can be used everywhere |
B.has not been on sale |
C.will replace the water distribution system |
D.will solve the problem of water shortage |
A.record-breaking. | B.urgent. | C.unbelievable. | D.amazing. |
A.Microwave for Household Use | B.Filter to Draw in Damp Air |
C.Mode Dehumidifier on Sale | D.Machine to Make Water out of Air |
Once inside,the cow is rewarded with food.As the cow eats,a robotic arm cleans and connects the animal to the milking machine.A few minutes later,milking is complete.The gate is opened,the cow is released and the next cow enters.
The robotic systems are designed to operate 24 hours a day.The cows get to decide when they want to be milked.Cows are milked an average of about three times a day.Some are milked four to six times a day.
The cows wear collars around their necks that identify them to the system.A computer keeps records on their eating and milking.A cow is released from the station if the computer decides it should not be milked.
The automated system also measures the temperature and color of freshly produced milk.Milk is thrown away if it does not pass the tests.
Professor Plaut believes the systems will appeal especially to the next generation of farmers.She means young people who are more interested in technology and less interested in working all the time on the farm.Still,she says the price of robotic milking systems will continue to limit their use.
Doug and Tina Suhr have more than 100 cows on their family farm.Last year it became the fourth farm in southeast Minnesota to get a robotic milking system.A recent story in a local agricultural newspaper said the first robot costs 175,000 dollars.The second costs 150,000 dollars.
Doug told AgriNews that wages that would have been paid for one employee in five years will pay for one robot.He says the increase in milk production reaches a high of more than six kilograms per cow per day.
小题1:From the first paragraph,we can infer ________.
A.the robotic system is designed to reduce labor |
B.cows can be raised by robots in the future |
C.robots direct cows into milking stations |
D.cows are kept clean by robots on some farms |
A.adjust the temperature of milking stations |
B.judge the quality of fresh milk |
C.improve the appetite of cows |
D.keep fresh milk for two weeks |
A.Because young people have no interest in it. |
B.Because it is difficult to learn how to use it. |
C.Because people can"t afford to buy it. |
D.Because it usually causes the waste of milk. |
A.$150,000~$175,000. |
B.over $75,000. |
C.$150,000~$30,000. |
D.$30,000~$35,000. |
Until now,space tourism has been limited to the ultrawealthy. Just seven people have paid tens of millions of dollars each for a trip to the International Space Station aboard a Russian rocket.
But that could change this year, when Virgin Galactic intends to start offering flights just beyond the space barrier on a rocket ship it has built, featuring five minutes of weightlessness during a twoandahalfhour tour. At $ 200,000 a seat, this will open the final frontier to far more people.
At least two other specialty airlines have jumped in as well, taking reservations and deposits for future space flights.Allianz, the big insurer, will introduce an insurance product in 2012, lending space tourism the trappings of the regular travel industry.
“Just to be able to sell space travel as a regular part of your business, really, just how cool is that?” said Lynda Turley Garrett, president of Alpine Travel of Saratoga, Calif.,who is one of 58 accredited space agents for Virgin Galactic in the United States.
In five years,Ms.Garrett has sold three seats. But she expects that to change once passengers start going up and coming down to tell their friends. “By 2017,it"ll be just like scheduling a flight to L.A.,” Ms.Garrett predicted.
小题1:If you want to book a flight to space in 2012, you can________.
A.go to any travel agency |
B.telephone Virgin Galactic |
C.pay a visit to Allianz |
D.sign up on the website of Virgin Galactic |
A.only the extremely rich people can afford the space trip |
B.seven people have paid tens of millions of dollars for a space trip |
C.Russia is the first country to build the space station |
D.ordinary people are not allowed to take space tour |
A.It is one of the approved space agencies. |
B.It is a famous space tourism company. |
C.It sells insurance products to space tourists. |
D.Its rocket has carried space passengers successfully. |
A.Standard uniforms. |
B.Traditional decorations. |
C.Symbolic signs. |
D.Personal belongings. |
A.Common. | B.Changeable. |
C.Flexible. | D.Reasonable. |
最新试题
- 1已知反比例函数y=kx的图象经过点(3,-2),则k的值是( )A.-6B.6C.23D.-23
- 2若复数满足:,,(为虚数单位),则 .
- 3某简单组合体的三视图如图,其中正视图与侧视图相同(尺寸如图,单位:cm),则该组合体的体积是______cm3(结果保留
- 4阅读理解。 *Teachers Wanted Are you a teacher? Do you li
- 5郑成功从荷兰殖民者手中收回台湾是在[ ]A.1624年 B.1662年 C.1683年 D.16
- 6一物体沿固定斜面从静止开始向下运动,经过时间t0滑至斜面底瑞,已知物体在运动过程中所受的摩擦力恒定。若用F、v、s和E分
- 7已知抛物线经过椭圆的两个焦点.(1) 求椭圆的离心率;(2) 设,又为与不在轴上的两个交点,若的重心在抛物线上,求和的方
- 8阅读材料,完成下列各题。材料一:据国家气候中心2011年1月12日监测,目前河北、北京、天津、河南、山西、山东、安徽、江
- 9【题文】下列句子中没有通假字的一项是(3分) ( )A.于嗟鸠兮
- 10选出下列划线字注音全都正确的一项 [ ]A.蹙缩(cù) 拓片(tà) 炮烙(páo) 少不更事(gèng) B
热门考点
- 1阅读下面的文字,完成1-3 题。图像及图像之外的汉字与中华文化 林谷芳① 中国文明是世界上现存唯一绵亘超过
- 2实行“一国两制”应该坚持的最重要的原则是[ ]A.社会主义制度 B.中国共产党的领导 C.一个中国 D.区别对待
- 3反比例函数的图象经过点(-2,4),其解析式为______.
- 4酵母菌的营养方式是[ ]A.寄生 B.自养 C.腐生D.光合作用
- 5已知:铁单质与高价铁盐溶液反应得亚铁盐溶液如2FeCl3+Fe=3FeCl2.某化学试剂厂产生废水中含有AgNO3和Fe
- 6某校初三(20)班全班50名同学积极参与向贫困山区的留守儿童捐款献爱心活动,团支部利用两种统计图对本班捐款情况进行统计:
- 7公民徐某有一儿一女,妻子早逝。几年后徐某也因病去世,留下6间房产和5万元钱。按照法律规定,房产和5万元钱直接由其儿子和女
- 8下列物质中属于电解质的是( )A.硫酸钡B.铝 C.二氧化碳 D.乙醇
- 9________ he comes or not,the result will be the same.A.Even
- 10下列措施中,不能增大直流电动机线圈转速的是( )A.换用磁性更强的磁体B.换用电压更高的电源C.将 N、S 极对调D.