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The world's largest solar thermal plant(太阳热能发电站)is set to begin producing power in the United States by the end of the year. Wind and energy from the sun are generally considered clean, unlike energy from coal-burning power stations. However, environmentalists now worry that too much solar power development could harm the local environment.
A California company — BrightSource Energy is building a huge solar power plant in the Mojave desert, about 60 kilometers southwest of Las Vegas, Nevada. The plant is known as the Ivanpah Solar Electric Generating System. Joe Desmond works for the company. "This is actually one of the highest concentrations of sunlight in the world, out here in Ivanpah." explained Desmond. BrightSource Energy will deploy 170,000 specially designed mirrors to direct solar energy towards boilers on top of three power towers. The steam produced in the boilers will drive turbine (涡轮) to make electricity. Joe Desmond says the steam can reach temperatures of more than 260 degrees Celsius. "We can store the sun's thermal energy in the form of molten salt, so we can produce electricity even when the sun goes down. There is a lot of interest in concentrating solar power around the globe in environmnents where you have lots of sun, such as China, South Africa, the Middle East, North Africa, explained Desmond.
Environmentalists generally support the idea of solar power, however, many are concerned about the effect of power plants on sensitive environment. Lisa Belenky is a lawyer with the Center for Biological Diversity, a private group. She says environmentalists are specifically worried about the effect of the Ivanpah Solar Project on the sensitive plant and animal life in that part of Mojave desert. "Even though the desert seems big, when you start cutting it up, it can really affect how the species and the animals and the plants are able to survive in the long run,"said Lisa Belenky. BrightSource Energy has already spent more than $ 50 million to move endangered desert tortoises away from the power plant. but Lisa Belenky says this is not the answer. "We should be reusing areas that have a1ready been disturbed, like old mining sites, for example...either on homes, on businesses, parking lots." said Belenky.
There have also been reports of birds dying at the Ivanpah Plant and others like it.
Some birds die after colliding with solar equipment which the animals mistake for water. Other birds were killed or suffered burns after flying through the intense heat at the solar thermal plant. As solar projects increase, environmentalists and developers are considering what to do to reduce bird death.
1.Why is the Ivanpah Solar Electric Generating System being built in the desert?
A. Because the temperature is extremely high in the desert.??
B. Because there is no life in the desert.
C. Because there is much salt in the desert.?????????????
D. Because sunlight is highly focused in the desert.
2.Why can the plant make electricity at night?
A. Because the sun's thermal energy can be stored in the form of steam.
B. Because the sun's thermal energy can be stored in the form of molten salt.
C. Because the sun'ss thermal energy can be stored through mirrors
D. Because the sun's thermal energy can be stored in the boilers.
3.According to Lisa Belenky, in order to reduce the effect,_____.
A. we should move all the plants and animals away from the solar plant
B. we should guide the bird not to hit the solar plant
C we should build the solar plant in disturbed areas
D. we should build the solar plant in the desert
4.The author’s attitude towards the solar projects is _____.
A. supportive????????????? B. critical????????????? ??? ??????? C. indifferent????????????? ?????????? D. cautious
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A Nepali teenager has designed a ￡23 solar panel（太阳能电池板）using human hair．
Milan Karki, who is 18 years old and lives in a village in rural Nepal, used human hair to replace silicon, which is a common but expensive material of solar panels．
By using hair as a replacement, Karki said that solar panels can be produced for around ￡23, aprice tag that could be halved if they were mass-produced．
The solar panel works because melanin, which gives hair black color, is light sensitive and can act as an electrical conductor．Karki was inspired to follow this route by a Stephen Kawking' s book, which explained how to create static （静电的） energy from hair．
The device that Karki has showed and proved 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 ￡16 in Nepal and lasts a few months, while a pack of batteries would cost ￡50 and last a few nights, " according to The Daily Mail．
Karki and his four classmates firstly made the solar panel as an experiment but the teens are convinced it has wide applicability and commercial viability （可行性）．
Karki has now sent out several devices to other districts near his home for testing．He said, "First I wanted to provide electricity for my home, then my village．Now I am thinking for the whole world．"
56．What is special about Karki's solar panel?
A．Karki' s solar panel has static energy．
B．Karki uses a very expensive material in his solar panel．
C．Karki puts man' s hair to use in his solar panel．
D．Karki uses his solar panel to charge the cell phone．
57．Karki' s idea about designing his solar panel results from __ .
A．his teacher's instruction
B．a book written by a famous physicist
C．his classmates' experiment
D．a report in The Daily Mail
58．Karki' s attitude to the application of his solar panel is .
A．optimistic B．uncertain C．serious D．negative
59．The text can probably be read in ______．
A．an advertisement B．a text book C．a magazine D．a newspaper
查看习题详情和答案>>runs out in the middle of a call?
If yes, then here comes some good news. Scientists are now perfecting a way to recharge (充电)
electrical equipment while on the move.
Researchers from the Netherlands, France and Portugal announced last week that they have developed
very thin solar panels (太阳能板) that can be put on clothes. They can also be added to furniture and
rooftops. They change light from the sun into electricity.
In about three years, you'll be able to wear a jacket that will recharge your phone as you walk. For
camping fans, the development could lead to a tent which charges batteries all day so you can have light
or music at night.
The basic technology of wearable solar panels is the same as that used for conventional (传统的) solar
panels. Pairs of sheets of semi-conducting silicon (半导体硅) are linked together to form the panel.
But scientists made them much thinner by using different silicon. At one micro-metre, they are the
same thickness as photographic film.
"This technology will make it easier for people to use clean energy sources," said Gerrit Kroesen, a
physicist in the Netherlands who led the team of scientists.
But the thin panels are not as efficient as the thicker ones. While some solar panels now operate at an
efficiency of about 20 per cent, the new flexible (柔韧的) panels are only 7 per cent efficient. But the
scientists believe that this is worth accepting for a stronger and more useful panel.
But the thinner panel is cheaper. An A4 sized panel put onto the back of a jacket costs less than US$13.
It could charge a cellphone during a summer walk in the countryside. As long as you stay within range of
the transmitting masts (发射天线) that relay a call to the networks, phones will never again run out of power.
B. Going from one place to another.
C. Changing clothes before moving.
D. Changing the mobile phone battery.
B. A new kind of chargeable battery.
C. A new type of mobile phone.
D. A use of mobile phones.
B. Warmer clothes.
C. Furniture and rooftops.
D. Thin flexible solar panels.
B. Your mobile phone battery runs out in the middle of a call.
C. You wear a jacket that will recharge your phone.
D. You can change light from the sun into electricity.
Have you ever been frustrated（沮丧的）when left talking to yourself after your mobile phone battery runs out in the middle of a call?
If yes, then here comes some good news. Scientists are now perfecting a way to recharge（充电）electrical equipment while on the move.
Researchers from the Netherlands, France and Portugal announced last week that they have developed very thin solar panels（太阳能板）that can be put on clothes. They can also be added to furniture and rooftops. They change light from the sun into electricity.
In about three years, you'll be able to wear a jacket that will recharge your phone as you walk. For camping fans, the development could lead to a tent which charges batteries all day so you can have light or music at night.
The basic technology of wearable solar panels is the same as that used for conventional（传统的）solar panels. Pairs of sheets of semi-conducting silicon（半导体硅）are linked together to form the panel.
But scientists made them much thinner by using different silicon. At one micro-metre, they are the same thickness as photographic film.
"This technology will make it easier for people to use clean energy sources," said Gerrit Kroesen, a physicist in the
But the thin panels are not as efficient as the thicker ones. While some solar panels now operate at an efficiency of about 20 per cent, the new flexible（柔韧的）panels are only 7 per cent efficient. But the scientists believe that this is worth accepting for a stronger and more useful panel.
But the thinner panel is cheaper. An A4 sized panel put onto the back of a jacket costs less than US$13. It could charge a cellphone during a summer walk in the countryside. As long as you stay within range of the transmitting masts（发射天线）that relay a call to the networks, phones will never again run out of power.
72. What is the meaning of the phrase "on the move" in paragraph 2?
A. Taking a course of action.
B. Going from one place to another.
C. Changing clothes before moving.
D. Changing the mobile phone battery.
73. What is the passage mainly about?
A. A way to recharge electrical equipment.
B. A new kind of chargeable battery.
C. A new type of mobile phone.
D. A use of mobile phones.
74. What is the most important in the development of the technology?
A. Photographic film. B. Warmer clothes.
C. Furniture and rooftops. D. Thin flexible solar panels.
75. What is NOT likely to happen in the future?
A. You can listen to music in a campsite using the electricity from sunshine.
B. Your mobile phone battery runs out in the middle of a call.
C. You wear a jacket that will recharge your phone.
D. You can change light from the sun into electricity.
Have you ever been frustrated （沮丧的） when left talking to yourself after your mobile phone battery runs out in the middle of a call?
If yes, then here comes some good news. Scientists are now perfecting a way to recharge （充电） electrical equipment while on the move.
Researchers from the Netherlands, France and Portugal announced last week that they have developed very thin solar panels （太阳能板） that can be put on clothes. They can also be added to furniture and rooftops. They change light from the sun into electricity.
In about three years, you'll be able to wear a jacket that will recharge your phone as you walk. For camping fans, the development could lead to a tent which charges batteries all day so you can have light or music at night.
The basic technology of wearable solar panels is the same as that used for conventional （传统的） solar panels. Pairs of sheets of semi-conducting silicon （半导体硅） are linked together to form the panel.
But scientists made them much thinner by using different silicon. At one micro-metre, they are the same thickness as photographic film.
"This technology will make it easier for people to use clean energy sources," said Gerrit Kroesen, a physicist in the Netherlands who led the team of scientists.
But the thin panels are not as efficient as the thicker ones. While some solar panels now operate at an efficiency of about 20 per cent, the new flexible （柔韧的） panels are only 7 per cent efficient. But the scientists believe that this is worth accepting for a stronger and more useful panel.
But the thinner panel is cheaper. An A4 sized panel put onto the back of a jacket costs less than US$13. It could charge a cellphone during a summer walk in the countryside. As long as you stay within range of the transmitting masts （发射天线） that relay a call to the networks, phones will never again run out of power.
1. What is the meaning of the phrase "on the move" in paragraph 2?
A. Taking a course of action. B. Going from one place to another.
C. Changing clothes before moving. D. Changing the mobile phone battery.
2. What is the passage mainly about?
A. A new kind of chargeable battery. B. A way to recharge electrical equipment.
C. A new type of mobile phone. D. A use of mobile phones.
3. What is the most important in the development of the technology?
A. Photographic film. B. Warmer clothes.
C. Furniture and rooftops. D. Thin flexible solar panels.
4. What is NOT likely to happen in the future?
A. You can listen to music in a campsite using the electricity from sunshine.
B. Your mobile phone battery runs out in the middle of a call.
C. You wear a jacket that will recharge your phone.
D. You can change light from the sun into electricity.
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