If eighteen-year-old Karki doesn't turn out to be the next Edison, I'll chop off my locks This kid invented a solar pane (嵌板) which uses human hair as a conductor and could provide the world with cheap, green electricity, solving the energy crisis.
Karki, a Nepal teenager, who lives in a village in Rural Nepal, used human hair to replace silicon, which is a common but expensive component of solar panels.
By using hair as a replacement, Karki says solar panels can be produced for around 23 pounds. But if they were mass-produced, Karki says they could be sold for less than half that price, which could make them a quarter of the price of those already on the market.
The solar panel works because melanin, the substance giving hair its color, is light sensitive and can act as an electrical conductor. Karki was inspired to follow this route by a Stephen Hawking book, which explained how to create energy from hair.
The device (设备) Karki has shown is able to produce 9V or 18W of energy -- plenty to charge a mobile phone. Half a kilo of hair can be bought for only 16p in Nepal and lasts a few months, where as a pack of batteries would cost 50p and last a few nights," according to Karki.
Karki has now sent out several devices to other districts near his village for testing. "First I wanted to provide electricity for my home, then my village. Now I am thinking for the world," he said.
Karki says the idea is more important than ever because of the urgent need for renewable energies in the face of limited power sources and global warming. Slowly, natural resources are decreasing. One day we will be in a great crisis. This is an easy solution for the crisis we are having today.
64. What is the best title of the passage?
A. Introduction of Solar Panels B. Functions of a New Solar Panel
C. Special Solar panel Materials D. Karki Invented a New Solar Panel
65. Why did Karki want to invent a solar panel with hair?
A. Because hair is not very expensive.
B. Because silicon is hard to find.
C. Because he wanted to provide electricity for his home.
D. Because the energy crisis is very serious in his home town.
66. From the last paragraph we can know ________.
A, Karki s invention is of great importance
B. Karki can predict what will happen in the future
C. the energy crisis will disappear in the future
D. Karki's invention will make him wealthy
67. The purpose of this passage is to ________.
A. Karki for his great invention B. introduce a new solar panel
C. promote the sales of solar panels D. warn people of the energy crisis
高三英语阅读理解简单题
If eighteen-year-old Karki doesn't turn out to be the next Edison, I'll chop off my locks This kid invented a solar pane (嵌板) which uses human hair as a conductor and could provide the world with cheap, green electricity, solving the energy crisis.
Karki, a Nepal teenager, who lives in a village in Rural Nepal, used human hair to replace silicon, which is a common but expensive component of solar panels.
By using hair as a replacement, Karki says solar panels can be produced for around 23 pounds. But if they were mass-produced, Karki says they could be sold for less than half that price, which could make them a quarter of the price of those already on the market.
The solar panel works because melanin, the substance giving hair its color, is light sensitive and can act as an electrical conductor. Karki was inspired to follow this route by a Stephen Hawking book, which explained how to create energy from hair.
The device (设备) Karki has shown is able to produce 9V or 18W of energy -- plenty to charge a mobile phone. Half a kilo of hair can be bought for only 16p in Nepal and lasts a few months, where as a pack of batteries would cost 50p and last a few nights," according to Karki.
Karki has now sent out several devices to other districts near his village for testing. "First I wanted to provide electricity for my home, then my village. Now I am thinking for the world," he said.
Karki says the idea is more important than ever because of the urgent need for renewable energies in the face of limited power sources and global warming. Slowly, natural resources are decreasing. One day we will be in a great crisis. This is an easy solution for the crisis we are having today.
64. What is the best title of the passage?
A. Introduction of Solar Panels B. Functions of a New Solar Panel
C. Special Solar panel Materials D. Karki Invented a New Solar Panel
65. Why did Karki want to invent a solar panel with hair?
A. Because hair is not very expensive.
B. Because silicon is hard to find.
C. Because he wanted to provide electricity for his home.
D. Because the energy crisis is very serious in his home town.
66. From the last paragraph we can know ________.
A, Karki s invention is of great importance
B. Karki can predict what will happen in the future
C. the energy crisis will disappear in the future
D. Karki's invention will make him wealthy
67. The purpose of this passage is to ________.
A. Karki for his great invention B. introduce a new solar panel
C. promote the sales of solar panels D. warn people of the energy crisis
高三英语阅读理解简单题查看答案及解析
The passport photographs of the future could turn out to be more than just another pretty picture if a new computer technique developed by Israeli scientists catches on.
Researchers at Ben-Gurion University, in Israel, have invented a way to hide information such as a fingerprint or signature in color images. They believe this could improve passport safety or be used to produce product bar codes(条形码) or designs that cannot be seen.
“The papers can be faxed, scanned(扫描) and reprinted without hidden data disappearing,” New Scientist magazine said last week.
Joseph Rosen and a team of scientists worked out the new instrument by creating a mathematical model.
The model turns a fingerprint or signature into a series of numbers which are used to shape the dots that make up a color picture.
“Each dot can be forced out of the usual place slightly without noticeably changing the final appearance of the image,” the magazine said.
Several images that can be hidden in a single picture are scanned into a computer which does the work.
The hidden images or fingerprints cannot be shown until the picture is scanned again.
The computer rebuilds the fingerprint by measuring the displacement of the dots in the picture.
The magazine said that if he model is used for passport checkpoints the picture can be unscrambled(解码) to show the fingerprint or signature and checked against the person holding the passport.
The researchers are now working on a handheld, and instrument which could make unscrambling the hidden information easier.
1. The new passport photos will probably contain all EXCEPT _____.
A.one’s picture | B.one’s fingerprint |
C.one’s signature | D.one’s blood type |
2. The writer probably got the information about the new passport photos from ___.
A.Israeli scientists | B.a radio or TV | C.a newspaper | D.a magazine |
3.What is the best title for the passage?
A.A New Computer Technique by Israeli Scientists |
B.A New Way t Hide Information |
C.The New Passport Photo: More Than Meets the Eye |
D.Safe Passport Photos |
高三英语阅读理解中等难度题查看答案及解析
If they don’t change the way they’re working on the issue, the result will ________turn out to be just the opposite of their wish.
A. exactly B. definitely C. occasionally D. originally
高三英语单项填空中等难度题查看答案及解析
The experiment __ to be .
A. turned out; greatly success B. turned out; a great success
C. turned out; greatly successful D. turned up; great success
高三英语单项填空中等难度题查看答案及解析
. If the new arrangement doesn’t _____, we’ll go back to the old one.
A.work over | B.work out | C.work up | D.work in |
高三英语单项填空简单题查看答案及解析
—The weather turns out to be fine.
— We can depend on ___ that the goods will be shipped to the flooded area on time.
A. it B. / C. this D. which
高三英语单项填空中等难度题查看答案及解析
The _______ that the injured be sent to the hospital without delay turned out to be wise.
A. command B. programme C.account D. invention
高三英语单项选择题中等难度题查看答案及解析
Sometimes, something that is considered to be negative turns out to be an advantage on the job. Though he is only l8 years old and blind, Suleyman Gokyigit is among the top computer technicians and programmers at InteliData Technologies Corp., a large software company with several offices across the United States.
"After our company united with another one last October, two different computer networks were driving us crazy," recalls Douglas Braun, the InteliData president. "We couldn't even send e-mail to each other.” In three weeks Mr. Gokyigit created the software needed to connect the two networks. "None of the company's 350 other employees could have done the job in three months," says Mr. Braun. " Suleyman can 'see' into the heart of the computer.”
Mr. Gokyigfi's gift, as Mr. Braun calls it, is an unusual ability to form an idea of the inside of a machine. "The computer permits me to reach out into the world and do almost anything I want to do," says Mr. Gokyigit
The young programmer is at home with hardware as well, thanks partly to a highly developed sense of touch. Mitzi Nowakowski, an office manager at InteliData, remembers how he easily disconnected and reconnected their computer systems during a move last year. "Through feel, Suleyman can find the position of connectors, pins and wires much faster than most other people with sight," he says.
Much of the student programmer's speed comes from his ability not to be interrupted while at the computer. When typing, he listens carefully to the synthesizer (合成器). His long, thin fingers fly over the keyboard. "Nothing seems to shake his attention," says Mrs. Nowakowski, his boss.
Mr. Gokyigit is the only company employee who is available 24 hours a day. "We consider him our top problem solver." says Mr. Braun.
1.According to Mr. Braun, Suleyman ________________
A. can work wonders on computer
B. is the best technician in the world
C. has done a hard job in three months
D. has united InteliData Technologies Corp. with another computer company
2.The underlined part "is at home with hardware" { paragraph 4 } means _________
A. is good at dealing with computer hardware
B. is fond of computer hardware
C. works with computer hardware at home
D. feels comfortable when working with computer hardware
3.Suleyman was quick while at the computer mostly because of ______
A. his blindness B. his attention on the synthesizer
C. his long, thin fingers D. his ability not to be interrupted
4.What does the text mainly tell us?
A. Computer technicians are more likely to be gifted.
B. One's disadvantages may prove to be advantages.
C. The disabled can also play an important role in society.
D. Top computer scientists have unusual abilities to form ideas of computers.
高三英语阅读理解中等难度题查看答案及解析
The weather turned out to be fine yesterday. I the trouble to carry my umbrella with me.
A.should have taken B.could have taken
C.needn’t have taken D.mustn’t have taken
高三英语单项填空中等难度题查看答案及解析
(2014·蜀光中学月考)The weather turned out to be fine yesterday.I________the trouble to carry the umbrella with me.
A.couldn’t have taken B.mustn’t have taken
C.needn’t have taken D.didn’t need to take
高三英语单项填空中等难度题查看答案及解析