Charging your mobile phone might soon be as simple as taking a walk around the block. Scientists have created a new machine that harvest energy from the movement of the knees while walking. Six volunteers wore the devices（裝置）on their legs while walking on a treadmill（跑步機）and were able to produce about five watts of electrical power each. That’s enough energy to run 10 mobiles at the same time.
“Since muscles are the powerhouses of the body, my colleagues and I designed our device to generate electricity from the move of the knee joint,” said Max Donelan. “It resembles a knee brace and weighs about 1.5 kilograms including the gearing（傳動裝置）and generator.”
The apparatus（裝置）catches the energy of a person’s movement by connecting an electrical generator to knee moving. When the wearer extends the knee, a gear on the device turns and spins the generator, which builds up energy. When the knee is flexed, the device turns off so as not to tax the wearer. The machine senses moving and knows when to activate itself.
The design allows a person to use the tool without using much additional energy beyond the normal demands of walking. The researchers measured the volunteers’ oxygen intake and carbon-dioxide output to make sure it wasn’t strenuous to use.
People are an excellent source of portable power. An average-sized person stores as much energy in fat as a 1,000-kilogram battery. People recharge their body batteries with food.
The device could be used to power computers in remote areas where electricity is short. The early markets are people whose lives depend on portable power, such as people with artificial limbs (肢體). On the military side, some soldiers have an extreme dependence on batteries these days, so both these groups could benefit.
1．The text is mainly about a new machine that .
A．can make your walking easy on a treadmill
B．can generate enough electricity by walking
C．can increase the strength of your walking
D．can offer electricity for your physical practice
2．According to the text, which parts of the body are suitable for the device?
A．The knees. B．The ankles. C．The wrists. D．The neck.
3．It can be inferred from the text that the amount of electricity from the device directly lies in .
A．the speed of your walking B．the amount of food you eat
C．the amount of oxygen intake D．the extent of your knees extending
4．Why did the researchers measure the volunteers’ carbon-dioxide output?
A．To see whether the device is hard to use.
B．To test the amount of electricity generated.
C．To tell whether the device has enough source of energy.
D．To judge what food is useful for the wearers.
5．We can learn from the text that the device .
A．is a must for a soldier in the army
B．will more and more change people’s ways of life
C．has widely been used in remote areas
D．is more useful in places with electricity unaccessible
千里馬走向假期期末仿真試卷寒假系列答案科目：高中英語 來源： 題型：閱讀理解
For many of us, printed books are satisfying in ways beyond the words they contain. Billions of printed books have been published, read and saved in the 600 years since movable type was invented, so why mess with a good things?
Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.
The Sony book reader is revolutionary not only in its storage capacity. The font（字體） is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.
Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails（零售） for $15.19 at the Sony site, while Amazon（卓越網(wǎng)） will deliver a hard copy to your mailbox for $16.19.
The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, a lot. Book lovers like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.
The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.
1．What would be the best title for the passage?
A. The age of the electronic book reader is coming
B. Printed books are out of date
C. The Sony reader meets many readers’ needs
D. The revolution in book readers
2．According to the passage, the Sony book reader _________.
A. is as light as a laptop computer B. can hold more than 200 books
C. is convenient to carry around D. cannot be connected to a PC
3．What is the author’s point when he mentions “Stone Cold”?
A. Amazon’s printed books are very cheap
B. “Stone Cold” can be got from the Sony site and Amazon
C. The Sony book reader is not very cheap to use
D. The Sony book reader can benefit its buyers a lot
4．The underlined word “bibliophiles” in Paragraph 5 refers to “__________”.
A. music lovers B. book lovers
C. electronic reading devices D. Sony readers
5．According to the author, what’s the future for the electronic reading devices?
A. They’ll replace printed newspapers and magazines
B. They’ll still be more expensive than printed newspapers
C. They’ll become a must in people’s daily life
D. They’ll become more popular as time goes on
查看答案和解析>>
科目：高中英語 來源：江西省臨川一中2010屆高三下學期4月月考 題型：閱讀理解
D
For many of us, printed books are satisfying in ways beyond the words they contain. Billions of printed books have been published, read and saved in the 600 years since movable type was invented, so why mess with a good things?
Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.
The Sony book reader is revolutionary not only in its storage capacity. The font（字體） is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.
Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails（零售） for $15.19 at the Sony site, while Amazon（卓越網(wǎng)） will deliver a hard copy to your mailbox for $16.19.
The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, they like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.
The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.
68．What would be the best title for the passage?
A. The age of the electronic book reader is coming
B. Printed books are out of date
C. The Sony reader meets many readers’ needs
D. The revolution in book readers
69．According to the passage, the Sony book reader _________.
A. is as light as a laptop computer B. can hold more than 200 books
C. is convenient to carry around D. cannot be connected to a PC
70．What is the author’s point when he mentions “Stone Cold”?
A. Amazon’s printed books are very cheap
B. “Stone Cold” can be got from the Sony site and Amazon
C. The Sony book reader is not very cheap to use
D. The Sony book reader can benefit its buyers a lot
71．According to the author, what’s the future for the electronic reading devices?
A. They’ll replace printed newspapers and magazines
B. They’ll still be more expensive than printed newspapers
C. They’ll become a must in people’s daily life
D. They’ll become more popular as time goes on
查看答案和解析>>
科目：高中英語 來源：廣東省江門市六校2010屆高考最后階段猜題卷（英語） 題型：閱讀理解
（7）閱讀理解
For many of us, printed books are satisfying in ways beyond the words they contain. Billions of printed books have been published, read and saved in the 600 years since movable type was invented, so why mess with a good things?
Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.
The Sony book reader is revolutionary not only in its storage capacity. The font（字體） is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.
Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails（零售） for $15.19 at the Sony site, while Amazon（卓越網(wǎng)） will deliver a hard copy to your mailbox for $16.19.
The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, a lot. Book lovers like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.
The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.
1．What would be the best title for the passage?
A. The age of the electronic book reader is coming
B. Printed books are out of date
C. The Sony reader meets many readers’ needs
D. The revolution in book readers
2．According to the passage, the Sony book reader _________.
A. is as light as a laptop computer
B. can hold more than 200 books
C. is convenient to carry around
D. cannot be connected to a PC
3．What is the author’s point when he mentions “Stone Cold”?
A. Amazon’s printed books are very cheap
B. “Stone Cold” can be got from the Sony site and Amazon
C. The Sony book reader is not very cheap to use
D. The Sony book reader can benefit its buyers a lot
4．The underlined word “bibliophiles” in Paragraph 5 refers to “__________”.
A. music lovers B. book lovers
C. electronic reading devices D. Sony readers
5．According to the author, what’s the future for the electronic reading devices?
A. They’ll replace printed newspapers and magazines
B. They’ll still be more expensive than printed newspapers
C. They’ll become a must in people’s daily life
D. They’ll become more popular as time goes on
查看答案和解析>>
科目：高中英語 來源：廣東省江門市六校2010屆高考最后階段猜題卷（英語） 題型：閱讀理解
（7）閱讀理解
For many of us, printed books are
satisfying in ways beyond the words they contain. Billions of printed books
have been published, read and saved in the 600 years since movable type was
invented, so why mess with a good things?
Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.
The Sony book reader is revolutionary not only in its storage capacity. The font（字體） is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.
Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails（零售） for $15.19 at the Sony site, while Amazon（卓越網(wǎng)） will deliver a hard copy to your mailbox for $16.19.
The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, a lot. Book lovers like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.
The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.
1．What would be the best title for the passage?
A. The age of the electronic book reader is coming
B. Printed books are out of date
C. The Sony reader meets many readers’ needs
D. The revolution in book readers
2．According to the passage, the Sony book reader _________.
A. is as light as a laptop computer
B. can hold more than 200 books
C. is convenient to carry around
D. cannot be connected to a PC
3．What is the author’s point when he mentions “Stone Cold”?
A. Amazon’s printed books are very cheap
B. “Stone Cold” can be got from the Sony site and Amazon
C. The Sony book reader is not very cheap to use
D. The Sony book reader can benefit its buyers a lot
4．The underlined word “bibliophiles” in Paragraph 5 refers to “__________”.
A. music lovers B. book lovers
C. electronic reading devices D. Sony readers
5．According to the author, what’s the future for the electronic reading devices?
A. They’ll replace printed newspapers and magazines
B. They’ll still be more expensive than printed newspapers
C. They’ll become a must in people’s daily life
D. They’ll become more popular as time goes on
查看答案和解析>>
科目：高中英語 來源： 題型：閱讀理解
（7）閱讀理解
For many of us, printed books are satisfying in ways beyond the words they contain. Billions of printed books have been published, read and saved in the 600 years since movable type was invented, so why mess with a good things?
Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.
The Sony book reader is revolutionary not only in its storage capacity. The font（字體） is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.
Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails（零售） for $15.19 at the Sony site, while Amazon（卓越網(wǎng)） will deliver a hard copy to your mailbox for $16.19.
The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, a lot. Book lovers like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.
The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.
1．What would be the best title for the passage?
A. The age of the electronic book reader is coming
B. Printed books are out of date
C. The Sony reader meets many readers’ needs
D. The revolution in book readers
2．According to the passage, the Sony book reader _________.
A. is as light as a laptop computer
B. can hold more than 200 books
C. is convenient to carry around
D. cannot be connected to a PC
3．What is the author’s point when he mentions “Stone Cold”?
A. Amazon’s printed books are very cheap
B. “Stone Cold” can be got from the Sony site and Amazon
C. The Sony book reader is not very cheap to use
D. The Sony book reader can benefit its buyers a lot
4．The underlined word “bibliophiles” in Paragraph 5 refers to “__________”.
A. music lovers B. book lovers
C. electronic reading devices D. Sony readers
5．According to the author, what’s the future for the electronic reading devices?
A. They’ll replace printed newspapers and magazines
B. They’ll still be more expensive than printed newspapers
C. They’ll become a must in people’s daily life
D. They’ll become more popular as time goes on
查看答案和解析>>
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