Picture the scene: the battery on your mobile phone has run out. You can't make any calls for help and no one can contact you. You are all alone - well, not quite. Just reach into your pocket and take out a piece of sugar.Put it into the battery, wait a minute, and you're back on the phone.
Thanks to a couple of American scientists, this situation could become real.Swadesh Chaudhuri and Derek Lovely have invented the"bacteria battery" - powered by bacteria that eats sugar and turns it into electricity.
"This is a special organism," Lovely said."You can harvest enough electricity to power a cell phone battery for about four days from a spoonful of sugar."
In the past, bacteria batteries have been expensive and not long-lasting. But this battery uses more efficient bacteria that can turn 80 percent of sugar into electrical energy. This is 30 percent more than similar batteries can manage.
The bacteria battery could become as small as a household battery. It's also cheap and stable, as sugar can be taken from waste and crops.
But the sugar to electricity process is slow: it could take weeks for the bacteria to digest a cup of sugar.And it produces "greenhouse" gases which pollute the environment.
The scientists understand there is a lot more work to be done. "It is still young," said Lovely."Where we are now is where solar power was 200r 30 years ago."
But he believes the battery could be used in scientific equipment at the bottom of the ocean.Other ideas include using sugar in the blood to run medical devices in the human body, and taking sugar from animal waste to provide energy to power homes in rural areas.
1.This passage is mainly about_ .
A. how to change sugar into electricity
B. a scientific invention of a new kind of bacteria battery
C. a new way to reduce pollution caused by mobile phones
D. a new kind of mobile phones and its future
2.Which of the following is not the strong point of the newly-developed battery?
A. Convenient. B.Stable. C. Inexpensive. D. Quick.
3.The underlined sentence in the 7th paragraph actually means .
A. the bacteria battery shares some similarities with solar energy
B. scientists will continue their work until they find solar power
C. there is much room for the improvement of the bacteria battery
D. the bacteria battery will get popular in 20 0r 30 years
4.According to the passage, who will find the bacteria battery less useful?
A. Farmers. B. Divers. C. Doctors. D. Electricians.
高三英语阅读理解中等难度题
Picture the scene: the battery on your mobile phone has run out. You can't make any calls for help and no one can contact you. You are all alone - well, not quite. Just reach into your pocket and take out a piece of sugar.Put it into the battery, wait a minute, and you're back on the phone.
Thanks to a couple of American scientists, this situation could become real.Swadesh Chaudhuri and Derek Lovely have invented the"bacteria battery" - powered by bacteria that eats sugar and turns it into electricity.
"This is a special organism," Lovely said."You can harvest enough electricity to power a cell phone battery for about four days from a spoonful of sugar."
In the past, bacteria batteries have been expensive and not long-lasting. But this battery uses more efficient bacteria that can turn 80 percent of sugar into electrical energy. This is 30 percent more than similar batteries can manage.
The bacteria battery could become as small as a household battery. It's also cheap and stable, as sugar can be taken from waste and crops.
But the sugar to electricity process is slow: it could take weeks for the bacteria to digest a cup of sugar.And it produces "greenhouse" gases which pollute the environment.
The scientists understand there is a lot more work to be done. "It is still young," said Lovely."Where we are now is where solar power was 200r 30 years ago."
But he believes the battery could be used in scientific equipment at the bottom of the ocean.Other ideas include using sugar in the blood to run medical devices in the human body, and taking sugar from animal waste to provide energy to power homes in rural areas.
1.This passage is mainly about_ .
A. how to change sugar into electricity
B. a scientific invention of a new kind of bacteria battery
C. a new way to reduce pollution caused by mobile phones
D. a new kind of mobile phones and its future
2.Which of the following is not the strong point of the newly-developed battery?
A. Convenient. B.Stable. C. Inexpensive. D. Quick.
3.The underlined sentence in the 7th paragraph actually means .
A. the bacteria battery shares some similarities with solar energy
B. scientists will continue their work until they find solar power
C. there is much room for the improvement of the bacteria battery
D. the bacteria battery will get popular in 20 0r 30 years
4.According to the passage, who will find the bacteria battery less useful?
A. Farmers. B. Divers. C. Doctors. D. Electricians.
高三英语阅读理解中等难度题查看答案及解析
When chatting with her on the mobile phone, the battery _________dead suddenly.
A.went B.came C.remained D.changed
高三英语单项填空中等难度题查看答案及解析
If you hear the sound of running water the next time you call a co-worker on his or her mobile phone, don’t be surprised. Three-fourths of Americans with mobile phones say they use them in the bathroom, a new study shows.
Approximately(大约) the same number of men and women have used the phone in the bathroom, according to a survey of 1,000 Americans by 11 mark, an integrated marketing agency, although men seem more attached to IT in the toilet: 30 percent of men versus(VS) 20 percent of women agreed with the statement, "I don't go to the bathroom without my mobile phone."
More than half the surveyed users (63 percent) said they have answered a phone call in the bathroom, and almost half (41 percent) reported initiating a phone call. That's not all, however. What goes on behind the walls of the stalls(小隔间) is anything a mobile phone is capable of. Sixty-seven percent said they have read a text, and 39 percent have surfed the Web. Men work more from the bathroom — 20 percent said they have participated in work-related calls, versus 13 percent of their female colleagues.
As expected, Gen Y(1981年后出生的一代) respondents(调查对象) are the pacesetters(先导者) in the "mobile everywhere" movement, with 91 percent using their phone in the bathroom. Still, older generations are not far behind. Eighty percent of Gen X(1961-1981) reported using the phone in the bathroom, as did 65 percent of Baby Boomers(1946-1965) and 47 percent of the Silent Generation(1925-1945).
While online, they are doing more than just surfing; 16 percent of Gen Y report they have made an online purchase while in the bathroom. Users of iPhones are particularly likely to browse and buy in the bathroom – 22 percent have made a purchase, versus 10 percent of Americans with mobile phones overall.
"The writing is on the stall," said 11 mark principal Nicole Burdette. "This study confirms what we all know: that the last private place is no longer private."
In the process, high-tech hygiene(卫生) is taking a hit, the survey found. While 92 percent of mobile phone users said they wash their hands after using the bathroom, only 14 percent said they wash their phones.
1.Which is the best word to replace the underlined word "initiating"?
A. receiving B. experiencing C. ending D. beginning
2.According to his words, Nicole Burdette mainly wants to tell us that ________.
A. no wonder mobile phones are used in the bathroom
B. the bathroom is a private place for people
C. it makes people have no privacy at all
D. more men have used the phone in the bathroom
3.What does the last paragraph of the passage imply?
A. Using phones in the bathroom has a bad effect on hygiene
B. Mobile phones should not be allowed to use in the bathroom
C. Most people care about the hygiene after using the bathroom
D. Few people wash their phones after using the bathroom
4.The attitude of the author to the use of phones in the bathroom is ______
A. supportive B. disapproval C. subjective D. objective
高三英语阅读理解中等难度题查看答案及解析
If you hear the sound of running water the next time you call a co-worker on his or her mobile phone, don’t be surprised. Three-fourths of Americans with mobile phones say they use them in the bathroom, a new study shows.
Approximately the same number of men and women have used the phone in the bathroom, according to a survey of 1,000 Americans by 11mark, an integrated marketing agency, although men seem more attached to IT in the toilet: 30 percent of men versus 20 percent of women agreed with the statement, "I don't go to the bathroom without my mobile phone."
More than half the surveyed users (63 percent) said they have answered a phone call in the bathroom, and almost half (41 percent) reported initiating a phone call. That's not all, however. What goes on behind the walls of the stalls is anything a mobile phone is capable of. Sixty-seven percent said they have read a text, and 39 percent have surfed the Web. Men work more from the bathroom — 20 percent said they have participated in work-related calls, versus 13 percent of their female colleagues.
As expected, Gen Y respondents are the pacesetters in the "mobile everywhere" movement, with 91 percent using their phone in the bathroom. Still, older generations are not far behind. Eighty percent of Gen X(1961-1981) reported using the phone in the bathroom, as did 65 percent of Baby Boomers and 47 percent of the Silent Generation.
While online, they are doing more than just surfing; 16 percent of Gen Y report they have made an online purchase while in the bathroom. Users of iPhones are particularly likely to browse and buy in the bathroom – 22 percent have made a purchase, versus 10 percent of Americans with mobile phones overall.
"The writing is on the stall," said 11mark principal Nicole Burdette. "This study confirms what we all know: that the last private place is no longer private."
In the process, high-tech hygiene(卫生) is taking a hit, the survey found. While 92 percent of mobile phone users said they wash their hands after using the bathroom, only 14 percent said they wash their phones.
1.59.Which is the best word to replace the underlined word "initiating"?
A. receiving B. experiencing C. ending D. beginning
2.60.According to his words, Nicole Buedette mainly wants to tell us that ________.
A. no wonder mobile phones are used in the bathroom
B. the bathroom is a private place for people
C. it makes people have no privacy at all
D. more men have used the phone in the bathroom
3.61.What does the last paragraph of the passage imply?
A. Using phones in the bathroom has a bad effect on hygiene
B. Mobile phones should not be allowed to use in the bathroom
C. Most people care about the hygiene after using the bathroom
D. Few people wash their phones after using the bathroom
4.62.The attitude of the author to the use of phones in the bathroom is ______
A. supportive B. disapproval
C. subjective(主观的) D. objective(客观的)
高三英语阅读理解中等难度题查看答案及解析
Taking a picture of your tongue with a mobile phone could soon instantly tell you how healthy you are. Researchers believe the images can reveal important information about a patient’s health and even give them early warning of serious illness.
A team at the University of Missouri is developing a system that can analyze pictures using a 5,000-year-old Chinese principle, which is based on the flow and balance of positive and negative energies in the body, and uses the tongue as a key to learning about a person’s physical health, or “zheng” according to Chinese medicine.
“Within a year, our goal is to create an application for smart phones that will allow anyone to take a photo of their tongue and learn the status of their zheng,” said Dong Xu, chair of MU’s Computer Science Department in the College of Engineering and the co-author of the latest study.
The software analyzes images based on the tongue’s color and coating to distinguish between tongues showing signs of “hot” or “cold” zheng. Shades of red and yellow are associated with hot zheng, whereas a white coating on the tongue is a sign of cold zheng.
“Hot and cold zheng doesn’t refer directly to body temperature,” said Xu, “Rather, it refers to a series of symptoms associated with the state of the body as a whole.”
For the study, 263 gastritis(胃炎) patients and 48 healthy volunteers had their tongues analyzed. The gastritis patients were classified by whether they showed infection by a certain bacteria as well as the intensity of their gastritis symptoms. In addition, most of the gastritis patients had been previously classified with either hot or cold zheng. This allowed the researchers to test the accuracy of the software’s analysis.
“Our software is able to classify people based on their zheng status. And as we continue to work on the software we hope to improve its ability,” said another co-author Ye Duan, “Eventually everyone will be able to use this tool at home using webcams or smart phone applications, which will allow them to monitor their zheng and get an early warning about possible ailments.”
1. The software mentioned in the passage is based on ________.
A. the latest development of smart phones
B. a traditional Chinese medical principle
C. the changes in one’s flow and energy
D. symptoms related with the state of the body
2.According to Chinese medicine, zheng refers to ________.
A. one’s body temperature B. the physical health of a person
C. the possible disease of a person D. the color and coating of one’s tongue
3.The study led by Dong Xu proves _________.
A. the effect of the software
B. the software’s great prospect
C. the advancement of smart phones
D. the greatness of Chinese medicine
4.The underlined word “ailments” can be replaced by _________.
A. analysis B. effects C. illnesses D. applications
5.It can be inferred from the passage that _________.
A. the software still needs improvement
B. the subjects in the study are all gastritis
C. the software has been in market for a year
D. the subjects in the study are classified by age
高三英语阅读理解中等难度题查看答案及解析
—It is said that the number of Chinese characters you can type on your mobile phone is the total number of Chinese characters.
—I know. That is because the character input systems are made by foreign cell phone producers.
A.much than 25 percent | B.25 percent as less as |
C.25 percent less than | D.25 percent as much |
高三英语单项填空简单题查看答案及解析
---- The battery in my cell phone is running low.
---- I _____ that last night before we went to bed.
A.was noticing B.have noticed C.had noticed D.would notice
高三英语单项填空中等难度题查看答案及解析
--- You often talk with your classmate on the telephone or mobile phone?
--- _____. I like using QQ.
A.None B.Either C.Any D.Neither
高三英语单项填空中等难度题查看答案及解析
________ you kept your mobile phone on in such an important exam? It’s against the school regulation.
A.How dare B.How come C.How about D.What if
高三英语单项填空简单题查看答案及解析
—Do you often talk with your friends on the telephone or mobile phone?
—________. I like using QQ.
A. None B. Either C. Any D. Neither
高三英语单项填空中等难度题查看答案及解析