Many do-it-yourself homeowners are interested in trying out solar power to leam about the technology and perhaps to provide energy for limited-use applications． There are a variety of ways to find ch 题目和参考答案——青夏教育精英家教网—

题目内容

Many do-it-yourself homeowners are interested in

trying out solar power to leam about the technology and

perhaps to provide energy for limited-use applications．

There are a variety of ways to find cheap solar panels

（板）, including buying used and building your own

with factory seconds．Both methods will save money

while forcing you to learn the ins-and-outs of a solar

power array （阵列）．

We've all seen solar-powered street signs or PV

panels being used for various purposes at remote locations．

When those units become cracked or chipped and are considered "unsafe", companies are forced to replace them, generally to avoid responsibility issues．Because it's difficult to get rid of PV panels, many companies, if approached, are willing to give them away or to sell them for modest prices．Depending on the degree of damage present, expect to see performance degradation （降级） in the range of 10% to 60%．A multimeter （万用表） can be used to test the panel before buying．If the panel's free, take it anyway．It could still be useful in a home solar project．

A solar panel is really nothing but a box serving as a container for a large group of solar cells．Factory second solar cells are usually sold on eBay at a small part of their regular cost．The cells come in a variety of sizes．You will need to figure out how much power a single cell produces to determine how many will need to be wired together to form an array．

A simple search of the Internet will show numerous sites detailing home solar panel projects．Do-it-yourself lovers are generally quite generous in supply photographs of their work and description of what went wrong and right with the project．

Getting cheap solar panels with slight imperfections, either used or through sales of factory seconds, is a perfect solution for home-built renewable energy projects．The high number of solar lovers online provide a wealth of useful information．Only limited skills are required, plus an understanding of the basic wiring involved．All are well within the talents of almost any home handyman．Beyond the satisfaction of having completed the project, you'll come away with a functional solar panel that will be a source of power for use around the house or at remote locations．

Solar energy systems are quickly becoming more popular with homeowners as prices continue to decline．

72．The author writes the passage to introduce ____．

A．ways of finding cheap solar panels B．ways of saving energy

C．a way of making a solar panel D．a home-built energy system

73．What does the phrase "factory seconds" in the passage refer to?

A．Second-hand factory products． B．Cheap but perfect factory products

C．Faulty factory solar cells． D．The second best factory solar cells

74．From Paragraph 5, we can learn about home-built energy projects that ____．

A．none of them are beyond home handymen

B．a lot of useful information is available on the Internet

C．a perfect solution is to get cheap and perfect solar panels

D．understanding electrical wiring is not necessarily needed

75．What is the author's attitude towards the future of solar energy systems?

A．Optimistic． B．Pessimistic. C．Indifferent． D．Doubtful

【小题1】A

【小题2】C

【小题3】B

【小题4】A

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　　The American cowboy was a great national hero through facts and stories.

　　In history, the real cowboy was a simple farm worker on horseback. He spent twelve to fourteen hours a day outdoors working with cows. The work was dirty, tiresome and not very well paid. In winter, most cowboys had to find other jobs. They were seldom alone. Most of them worked in teams of eight to ten.

　　People could raise beef cattle at low cost in the western states and send them by train to the eastern markets. Hut someone had to look after the cattle on the open land and get them to the nearest railroad . This was the job of a cowboy. Sometimes the railroad was more than a thousand kilometers away and it could take as long as six months to move the cattle. The cowboy moved the cattle slowly so that the cattle would not lose weight.

　　Most cowboys were young, unmarried men. A cowboy's horse was his most important tool. A good horse made the job of moving cattle much easier. A good cowboy understood cows and knew how to control them. At night, he sang to the cows to keep them calm .

　　The cowboy quickly received popular praise. Historians say that was because the cowboy appeared during a time of change in American life. In the late 1800's, America was changing from a nation of farms to one of factories and cities. The cowboy seemed free and more independent than other Americans.

　　Today, the life of real cowboys has changed greatly. One change has been the use of trucks. There is no need for the modem cowboy to sleep on the ground. Modem cowboys are better paid. They are likely to be married. Today cowboys are found in almost every state of the United States . Some of them are farmers or teaches or truck drivers . Some work for big companies. But at night and on weekends they became cowboys. Most have less than a thousand cows, and some have only two or three, those part-time cowboys increase the total production of meat, keeping beef price low. Most modem cowboys do not make much money from raising cattle. Many do it because they love the cowboy life.

1．In the past, the cowboy's work ________.

[　　]

A．was covered with dirt

B．cost much labor

C．was less paid

D．all of the above

2．Sometimes it took the cowboys ________ to move the beef cattle from the western states to the eastern markets.

[　　]

3．The cowboy's important instrument in the past was the ________.

[　　]

4．The cowboys quickly received popular praise because they appeared ________.

[　　]

A．in the western parts of the United States

B．in the eastern markets every year

C．in the time of great changes in America

D．in the early 1800's

5．Which of the following statements is true?

[　　]

A．The modem cowboys not only use their horses but also their trucks.

B．The modern cowboys still have to sleep on the ground outdoors.

C．The modern cowboys are badly paid.

D．Most modern cowboys don't love their work.

E
Many do-it-yourself homeowners are interested in
trying out solar power to leam about the technology and
perhaps to provide energy for limited-use applications．
There are a variety of ways to find cheap solar panels
（板）, including buying used and building your own
with factory seconds．Both methods will save money
while forcing you to learn the ins-and-outs of a solar
power array （阵列）．
We've all seen solar-powered street signs or PV
panels being used for various purposes at remote locations．
When those units become cracked or chipped and are considered "unsafe", companies are forced to replace them, generally to avoid responsibility issues．Because it's difficult to get rid of PV panels, many companies, if approached, are willing to give them away or to sell them for modest prices．Depending on the degree of damage present, expect to see performance degradation （降级） in the range of 10% to 60%．A multimeter （万用表） can be used to test the panel before buying．If the panel's free, take it anyway．It could still be useful in a home solar project．
A solar panel is really nothing but a box serving as a container for a large group of solar cells．Factory second solar cells are usually sold on eBay at a small part of their regular cost．The cells come in a variety of sizes．You will need to figure out how much power a single cell produces to determine how many will need to be wired together to form an array．
A simple search of the Internet will show numerous sites detailing home solar panel projects．Do-it-yourself lovers are generally quite generous in supply photographs of their work and description of what went wrong and right with the project．
Getting cheap solar panels with slight imperfections, either used or through sales of factory seconds, is a perfect solution for home-built renewable energy projects．The high number of solar lovers online provide a wealth of useful information．Only limited skills are required, plus an understanding of the basic wiring involved．All are well within the talents of almost any home handyman．Beyond the satisfaction of having completed the project, you'll come away with a functional solar panel that will be a source of power for use around the house or at remote locations．
Solar energy systems are quickly becoming more popular with homeowners as prices continue to decline．
72．The author writes the passage to introduce ____．
A．ways of finding cheap solar panels B．ways of saving energy
C．a way of making a solar panel     D．a home-built energy system
73．What does the phrase "factory seconds" in the passage refer to?
A．Second-hand factory products． B．Cheap but perfect factory products
C．Faulty factory solar cells．        D．The second best factory solar cells
74．From Paragraph 5, we can learn about home-built energy projects that ____．
A．none of them are beyond home handymen
B．a lot of useful information is available on the Internet
C．a perfect solution is to get cheap and perfect solar panels
D．understanding electrical wiring is not necessarily needed
75．What is the author's attitude towards the future of solar energy systems?
A．Optimistic． B．Pessimistic.      C．Indifferent．         D．Doubtful

Many do-it-yourself homeowners are interested in
trying out solar power to leam about the technology and
perhaps to provide energy for limited-use applications．
There are a variety of ways to find cheap solar panels
（板）, including buying used and building your own
with factory seconds．Both methods will save money
while forcing you to learn the ins-and-outs of a solar
power array （阵列）．
We've all seen solar-powered street signs or PV
panels being used for various purposes at remote locations．
When those units become cracked or chipped and are considered "unsafe", companies are forced to replace them, generally to avoid responsibility issues．Because it's difficult to get rid of PV panels, many companies, if approached, are willing to give them away or to sell them for modest prices．Depending on the degree of damage present, expect to see performance degradation （降级） in the range of 10% to 60%．A multimeter （万用表） can be used to test the panel before buying．If the panel's free, take it anyway．It could still be useful in a home solar project．
A solar panel is really nothing but a box serving as a container for a large group of solar cells．Factory second solar cells are usually sold on eBay at a small part of their regular cost．The cells come in a variety of sizes．You will need to figure out how much power a single cell produces to determine how many will need to be wired together to form an array．
A simple search of the Internet will show numerous sites detailing home solar panel projects．Do-it-yourself lovers are generally quite generous in supply photographs of their work and description of what went wrong and right with the project．
Getting cheap solar panels with slight imperfections, either used or through sales of factory seconds, is a perfect solution for home-built renewable energy projects．The high number of solar lovers online provide a wealth of useful information．Only limited skills are required, plus an understanding of the basic wiring involved．All are well within the talents of almost any home handyman．Beyond the satisfaction of having completed the project, you'll come away with a functional solar panel that will be a source of power for use around the house or at remote locations．
Solar energy systems are quickly becoming more popular with homeowners as prices continue to decline．
72．The author writes the passage to introduce ____．
A．ways of finding cheap solar panels B．ways of saving energy
C．a way of making a solar panel     D．a home-built energy system
73．What does the phrase "factory seconds" in the passage refer to?
A．Second-hand factory products． B．Cheap but perfect factory products
C．Faulty factory solar cells．        D．The second best factory solar cells
74．From Paragraph 5, we can learn about home-built energy projects that ____．
A．none of them are beyond home handymen
B．a lot of useful information is available on the Internet
C．a perfect solution is to get cheap and perfect solar panels
D．understanding electrical wiring is not necessarily needed
75．What is the author's attitude towards the future of solar energy systems?
A．Optimistic． B．Pessimistic.      C．Indifferent．         D．Doubtful

Many do-it-yourself homeowners are interested in

trying out solar power to leam about the technology and

perhaps to provide energy for limited-use applications．

There are a variety of ways to find cheap solar panels

（板）, including buying used and building your own

with factory seconds．Both methods will save money

while forcing you to learn the ins-and-outs of a solar

power array （阵列）．

We've all seen solar-powered street signs or PV

panels being used for various purposes at remote locations．

Solar energy systems are quickly becoming more popular with homeowners as prices continue to decline．

72．The author writes the passage to introduce ____．

A．ways of finding cheap solar panels B．ways of saving energy

C．a way of making a solar panel D．a home-built energy system

73．What does the phrase "factory seconds" in the passage refer to?

A．Second-hand factory products． B．Cheap but perfect factory products

C．Faulty factory solar cells． D．The second best factory solar cells

74．From Paragraph 5, we can learn about home-built energy projects that ____．

A．none of them are beyond home handymen

B．a lot of useful information is available on the Internet

C．a perfect solution is to get cheap and perfect solar panels

D．understanding electrical wiring is not necessarily needed

75．What is the author's attitude towards the future of solar energy systems?

A．Optimistic． B．Pessimistic. C．Indifferent． D．Doubtful

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