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nationwide contest to redesign the cars.Final competitors were chosen from a field of 60
applicants.
"The schools were selected to find technology that will help our country reach the needs
for energy sources,so we don't have to depend on other countries to provide fuel," Pickering
said.He is vice chairman of the US House of Reprentatives Energy and Commerce Committee.
The teams received $10 000 and a Chevrolet Equinox which would be used as a starting place
for modifications.Each team can also get $25 000 in parts and software from GM and other
sponsors.The cars will be taken to the GM proving grounds for a national competition.It's the
finale (结束曲)of a three-year competition.
In the first year,students designed and worked out their plans."At the end of the first year,our
plans for the hybrid (混合动力系统)were approved and we received our own Chevrolet Equinox
to begin construction," said Amanda McAlpin,leader of the outreach team.
In the second year,the students' goal is for their hybrid to exceed the factory Equinox's fuel
efficiency by 50 percent."Our goal is to place in the top five but increase in the areas we lacked in,"
McAlpin said."If we can maintain this strategy,we should be able to obtain our goal."In the final
competition this year,GM technicians would examine the cars to approve the safety and make sure
they meet all contest rules."We would like to be in the top half of each event,but they are all different.
Every team has their own strategy to win," said a computer engineering major.
"By ho
sting the competition,GM really gets the cream of the crop (优秀毕业生)from the top engineering schools across the country," McAlpin said."Many of our recent graduates who have
worked on the car have received jobs with GM." And Pickering agreed,"Their brainpower will give
us firepower and horsepower for the future."
A.One year.
B.Two years.
C.Three years.
D.Four years
B.changes
C.approval
D.examination
B.To sell its Chevrolet Equinox.
C.To make advertisements.
D.To find excellent graduates and employ them.
wing can be the best title for this passage?B.A Competition for Redesigning Cars
C.An Energy-saving Competition
D.GM and the Redesigned Cars
We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more—doing the Earth a favor while also helping our wallets.
Not long ago, my wife, PJ, and I tried a new diet—not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is bending up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions（排放）of carbon dioxide（CO2）and other greenhouse gases that are trapping heat in our atmosphere. 21世纪We decided to try an experiment. For one month we recorded our personal emissions of CO2. . We wanted to see how much we could cut back, so we went on a strict diet. The average US household（家庭）produces about 150 pounds of CO2 a day by doing common-place things like turning on air-conditioning or driving cars. That’s more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce? For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he had challenged readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping points, such as the melting（融化）of the ice sheets in Greenland or West Antarctica. “To stay below that point, we need to reduce CO2 emissions by 80 percent,” he said.
Good advice, I thought. I’d opened our bedroom windows to let in the wind. We’d gotten so used to keeping our air-conditioning going around the clock. I’d almost forgotten the windows even opened. We should not let this happen again. It’s time for us to change our habits if necessary.
Why did the author and his wife try a new diet?
A. To take special kinds of food B. To respond to climate change.
C. To lose weight D. To improve their health
The underlined words “tipping points” most probably refer to .
A. freezing points B. burning points C. melting points D. boiling points
It can be inferred from the passage that 2___. ..
A. it is necessary to keep the air-conditioning on all the time ..
B. it seems possible for every household to cut emissions of CO2
C. the average US household produces about 3,000 pounds of CO2 a month.
D. the average European household produces about 1,000 pounds of CO2 a month.
Which of the following would be the best title for this passage?
A. Saving Energy Starts at Home B. Changing Our Habits Begins at work
C. Changing Climate Sounds Reasonable D. Reducing Emissions of CO2 Proves Difficult
查看习题详情和答案>>We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more—doing the Earth a favor while also helping our wallets.
Not long ago, my wife, PJ, and I tried a new diet—not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is bending up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions（排放）of carbon dioxide（CO2）and other greenhouse gases that are trapping heat in our atmosphere. 21世纪We decided to try an experiment. For one month we recorded our personal emissions of CO2. . We wanted to see how much we could cut back, so we went on a strict diet. The average US household（家庭）produces about 150 pounds of CO2 a day by doing common-place things like turning on air-conditioning or driving cars. That’s more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce? For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he had challenged readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping points, such as the melting（融化）of the ice sheets in Greenland or West Antarctica. “To stay below that point, we need to reduce CO2 emissions by 80 percent,” he said.
Good advice, I thought. I’d opened our bedroom windows to let in the wind. We’d gotten so used to keeping our air-conditioning going around the clock. I’d almost forgotten the windows even opened. We should not let this happen again. It’s time for us to change our habits if necessary.
1. Why did the author and his wife try a new diet?
A. To take special kinds of food B. To respond to climate change.
C. To lose weight D. To improve their health
2.The underlined words “tipping points” most probably refer to .
A. freezing points B. burning points C. melting points D. boiling points
3.It can be inferred from the passage that 2___. ..
A. it is necessary to keep the air-conditioning on all the time ..
B. it seems possible for every household to cut emissions of CO2
C. the average US household produces about 3,000 pounds of CO2 a month.
D. the average European household produces about 1,000 pounds of CO2 a month.
4.Which of the following would be the best title for this passage?
A. Saving Energy Starts at Home B. Changing Our Habits Begins at work
C. Changing Climate Sounds Reasonable D. Reducing Emissions of CO2 Proves Difficult
查看习题详情和答案>>
We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more—doing the Earth a favor while also helping our wallets.
Not long age. My wife, PJ, and I tried a new diet—not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is bending up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions（排放）of carbon dioxide（CO2）and other greenhouse gases that are trapping heat in our atmosphere.
We decided to try an experiment. For one month we recorded our personal emissions of CO2. . We wanted to see how much we could cut back, so we went on a strict diet. The average US household（家庭）produces about 150 pounds of CO2 a day by doing common-place things like turning on air-conditioning or driving cars. That’s more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce?
For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he had challenged readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping points, such as the melting（融化）of the ice sheets in Greenland or West Antarctica. “To stay below that point, we need to reduce CO2 emissions by 80 percent,” he said.
Good advice, I thought. I’d opened our bedroom windows to let in the wind. We’d gotten so used to keeping our air-conditioning going around the clock. I’d almost forgotten the windows even opened. We should not let this happen again. It’s time for us to change our habits if necessary.
1.Why did the author and his wife try a new diet?
A. To take special kinds of food B. To respond to climate change.
C. To lose weight D. To improve their health
2.The underlined words “tipping points” most probably refer to
A. freezing points B. burning points C. melting points D. boiling points
3.It can be inferred from the passage that
A. it is necessary to keep the air-conditioning on all the time
B. it seems possible for every household to cut emissions of CO2
C. the average US household produces about 3,000 pounds of CO2 a month
D. the average European household produces about 1,000 pounds of CO2 a month
4.Which of the following would be the best title for this passage?
A. Saving Energy Starts at Home
B. Changing Our Habits Begins at Work
C. Changing Climate Sounds Reasonable
D. Reducing Emissions of CO2 Proves Difficult
查看习题详情和答案>>