科目:高中英語 來源:2010年高考英語試題分類匯編——科普類閱讀理解 題型:閱讀理解
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”,said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半導(dǎo)體). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶體結(jié)構(gòu)) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
1. Which of the following is true of Jae Kwon?
A. He teaches chemistry at MU.
B. He developed a chemical battery.
C. He is working on a nuclear energy source.
D. He made a breakthrough in computer engineering.
2. Jae Kwon gave examples in Paragraph 4_________.
A. to show chemical batteries are widely applied.
B. to introduce nuclear batteries can be safely used.[來源:Z.xx.k.Com]
C. to describe a nuclear-powered system.
D. to introduce various energy sources.
3. Liquid semiconductor is used to _________.
A. get rid of the radioactive waste
B. test the power of nuclear batteries.
C. decrease the size of nuclear batteries
D. reduce the damage to lattice structure.
4. According to Jae Kwon, his nuclear battery _______.
A. uses a solid semiconductor
B. will soon replace the present ones.
C. could be extremely thin
D. has passed the final test.
5. The text is most probably a ________.
A. science news report B. book review
C. newspaper ad D. science fiction story
查看答案和解析>>
科目:高中英語 來源:2013屆吉林省高二下學(xué)期期末考試英語試卷(解析版) 題型:閱讀理解
Here are some advertisements taken from a newspaper.
(1) Dear Drew Carter,
Your first year on this earth has been a pleasure ride for all of us. We love you!
Love,
Dad and Mom and many friends.
(2)Lawlis-Clarke
The Doctors Virgil and Marjorie Lawlis are pleased to announce the engagement(訂婚) of their daughter Diane Susan to Mr.Robert Brent Clarke,son of Mr.and Mrs.James Clarke of Herford,Texas.
A spring wedding is planned in Houston.
(3) Isbell-Foss
Mr.and Mrs.Davis K.Isbell announce the marriage of their daughter Dang to Mr.Stanley Foss,son of Mrs.John Sipe of Ada,Minnesota.
The wedding will be early April at Abiding Love Lutheran Church.
(4) Story-Kurio
Miss Stephanie Story and Mr.Warren Kurio were married February 5,at half past seven o’clock in the evening at Highland Park Presbyterian Church in Dallas,Texas.The bride(新娘) is the daughter of Mr.and Mrs.Herbert Brule Story Jr.of Dallas.The groom(新郎)is the son of Mr.and Mrs.Gerald Stanley Kurio of Austin.
1.What would be the best title for the first advertisement?
A. We Love You
B. Happy 1st Birthday
C. One Year Old
D. Our One-Year-Old Son
2.Lawlis and Clarke are going to get married_________.
A. in a church
B. where Clarke’s parents live
C. against their parents’ will
D. to Lawlis’s parents’ joy
3.Who got or will get married in spring?
A. Not only Lawlis and Clarke but also Isbell and Foss.
B. Neither Lawlis and Clarke nor Isbell and Foss.
C. Either Isbell and Foss or Story and Kurio.
D. Neither Lawlis and Clarke nor Story and Kurio.
查看答案和解析>>
科目:高中英語 來源:新疆喀什二中2009-2010學(xué)年度高一第二學(xué)期模塊學(xué)分認定考試英語試題 題型:完型填空
.
第二節(jié):完形填空(共20小題;每小題1.5分,滿分30分)
閱讀下面的短文,從短文后所給各題的A、B、C、D四個選項中,選出能填入空白處的最佳選項。
The world needs more people who are truly kind and caring. Yesterday it was about 11:00 p.m. _36_ my telephone rang. The number was that of a Best Western Hotel. _37_ I don’t pay attention to this type of call. _38_, this time, for some reason, I went ahead and answered it.
The man on the _39_ end asked if I knew Samuel K., my 91-year-old grandfather. I didn’t _40_ why I was the one he had called. The caller went on to tell me that I was the only _41_ listed in my grandpa’s phone book.
The _42_, Mr. Mason, was the manager of the hotel at which my grandpa had shown up, wanting to rent a room. The _43_ was that my grandpa had no money with him. He was _44_. He had been going _45_ else but had taken the wrong bus and _46_ 100 miles from home. My grandpa just wanted me to tell Mr. Mason that he was a(n) _47_ guy and would pay the money once he got home.
The manager did all he could to help my grandpa, since he didn’t want to _48_ my grandpa, and wanted him to spend a _49_ night. Not only did he take the time to _50_ me, but he also charged just $39 to let my grandpa _51_ safely and comfortably overnight. The rooms in that _52_ normally go for about $140! And then the staff there all _53_ him until my uncle could drive the 100 miles to pick him up!
This is just one more _54_ to show that there are still good people out there. Everywhere you go, you can find someone who _55_ . Thanks, Mr. Mason!
36. A. while B. when C. after D. before
37. A. Finally B. Personally C. Actually D. Usually
38. A. However B. Besides C. Although D. Therefore
39. A. last B. other C. only D. next
40. A. remember B. accept C. understand D. recognize
41. A. neighbor B. relative C. student D. friend
42. A. caller B. visitor C. seller D. driver
43. A. reason B. opinion C. problem D. excuse
44. A. hurt B. crazy C. robbed D. lost
45. A. somewhere B. nowhere C. anywhere D. everywhere
46. A. added up B. ended up C. went up D. sent up
47. A. brave B. lovely C. honest D. kind
48. A. disappoint B. receive C. frighten D. prevent
49. A. popular B. general C. special D. pleasant
50. A. call B. answer C. warn D. notice
51. A. work B. eat C. rent D. stay
52. A. hotel B. house C. apartment D. hospital
53. A. looked at B. looked after C. thought about D. thought of
54. A. patience B. information C. knowledge D. experience
55. A. minds B. cares C. sees D. worries
查看答案和解析>>
科目:高中英語 來源:2011-2012學(xué)年重慶市高三第一次月考(英語) 題型:閱讀理解
The word “conservation” has a thrifty meaning. To conserve is to save and protect, to leave what we ourselves enjoy in such a good condition that others may also share the enjoyment. Our forefathers had no idea that human population would increase faster than the supplies of raw materials: most of them, even until very recently, had the foolish idea that the treasures were “l(fā)imitless” and could “l(fā)ast forever”. Most of the citizens of earlier generations knew little or nothing about the complicated and delicate system that runs all through nature, and which means that, as in a living body, an unhealthy condition of one part will sooner or later be harmful to all the others.
Fifty years ago, nature study was not part of the school work; scientific forestry was a new idea; wood was still cheap because it could be brought in any quantity from distant woodlands; soil destruction and river floods were not national problems; nobody had yet studied long-term climatic cycles in relation to proper land use; even the word “conservation” had nothing of the meaning that it has for us today.
For the sake of ourselves and those who will come after us, we must now set about correcting the mistakes of our forefathers. Conservation should be made part of everybody’s daily life. To know about the water table in ground is just as important to us as a knowledge of the basic math formulas. We need to know why all watersheds (上游集水區(qū)) need the protection of plant life and why the running current of streams and rivers must be made to give their full benefit to the soil before they finally escape to the sea. We need to be taught the duty of planting trees as well as of cutting them. We need to know the importance of big, grown trees, because living space for most of man’s fellow creatures on this planet is figured not only in square measure of surface but also in cubic (立方體的) volume above the earth. In a word, it should be our goal to restore as much of the original beauty of nature as we can.
1.The author’s attitude towards the use of natural resources is _________.
A. positive B. uninterested C. optimistic D. critical
2.According to the author, the greatest mistake of our forefathers was that _________.
A. they had no idea about scientific forestry
B. they had little or no sense of environmental protection
C. they were not aware of the importance of nature study
D. they had no idea of how to make good use of raw materials
3.To avoid repeating the mistakes of our forefathers, the author suggests that ______
A. we plant more trees
B. natural sciences be taught to everybody
C. environmental education be directed toward everyone
D. we return to nature
4.How can you understand the underlined sentence in the last paragraph?
A. Our living space on the earth is getting smaller and smaller.
B. Our living space should be measured in cubic volume.[來源:Z。xx。k.Com]
C. We need to take some measures to protect space.
D. We must preserve good living conditions for both birds and animals.
查看答案和解析>>
科目:高中英語 來源:2011年四川普通高等學(xué)校全國招生統(tǒng)一考試英語試題 題型:閱讀理解
The pound new Library of Birmingham(LoB)will be the most visible sign of the way the city is accepting the digitalization(數(shù)字化)of everyday life.
Set to open in 2013, the £188m LoB is already beginning to tale shape next to the Birmingham Repertory Theatre, with which it will share some equipment.[來源:Z。xx。k.Com]
As digital media(媒介)is important to its idea. the project is already providing chances for some of the many small new local companies working at the new technologies.
Brian Gambles, the LoB project director, says it is about giving people the right tools for learning,“The aim is to mix the physical with the digital. Providing 24-hour services which can be used through many different ways. It is important to enable us to reach more people, more effectively.”
The digital library will, he says, be as important as the physical one, allowing the distant use of the services, making sure that it is never closed to the public.
Even before the LoB is complete, the public has been able to go online to visit the Virtual(虛擬的)LoB, designed by Baden, the Birmingham virtual worlds specialists. Not only have the public been able to learn about LoB, but the virtual one has also enabled those working on the LoB to understand the building and how it will work before it even opens.
Two other small Birmingham-based digital companies are working on the LoB projects. Substrat, a digital design company, is developing what it calls “enlarge reality” project. It is about the use of an exciting smart phone, an important part of the LoB which is in the early stages of development is an online library of figures of the city being built by a digital content company in Cahoots, in which users will be encouraged to add to and comment on the material.
Gambles says: “Technology will enable us to make the library’s content and services open to citizens as sever before.”
1.
The underline part “its idea” in Paragraph 3 refers to the idea of____
A. the equipment B. the project
C. the digital media D. the physical library
2.
While visiting the Virtual LoB, the public can_____
A. get a general idea of the LoB
B. meet many world-famous experts
C. learn how to put up a library building
D. understand how the specialists work on the project
3.
Which of the following is true of the LoB when it opens?
a. It offers better learning tools b. It reaches users in different ways c. It provides users with smart phone d. It allows users to enrich its material e. It gives non-stop physical and digital services |
A. a, b, d B. a, c, e C. b, c, d D. b, d, e
4.
This text is most probably taken from .
A. a put book B. a library guide
C. a handbook D. a newspaper report
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com