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Electric cars are dirty．In fact, not only are they dirty, they might even be more dirty than their gasoline-powered cousins．
People in California love to talk about “zero-emissions（排放）vehicles,” but people in California seem to be clueless about where electricity comes from．Power plants most all use fire to make it．Aside from the few folks who have their roofs covered with solar cells, we get our electricity from generators（发电机）．Generators are fueled by something — usually coal, oil, but also by heat generated in nuclear power plants．There are a few wind farms and geothermal（地热的）plants as well, but by far we get electricity mainly by burning something．
In other words, those “zero-emissions” cars are likely coal-burning cars．It's just the coal is burned somewhere else so it looks clean．It is not．It’s as if the California Greens are covering their eyes — “If I can’t see it, it’s not happening．” Gasoline is an incredibly efficient way to power a vehicle; a gallon of gas has a lot of energy in it．But when you take that gas （or another fuel） and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat — at the generator, through the transmission lines, etc．
A gallon of gas may propel your car 25 miles．But the electricity you get from that gallon of gas won't get you nearly as far — so electric cars burn more fuel than gas-powered ones．If our electricity came mostly from nukes, or geothermal, or hydro, or solar, or wind, then an electric car truly would be clean．But for political, technical, and economic reasons, we don’t use much of those energy sources．
In addition, electric cars’ batteries which are poisonous for a long time will eventually end up in a landfill（垃圾）．And finally, when cars are the polluters, the pollution is spread across all the roads．When it’s a power plant, though, all the junk is in one place．Nature is very good at cleaning up when things are not too concentrated, but it takes a lot longer when all the garbage is in one spot．
1．What does the author mean by using “ignorant” in paragraph Ⅱ?
A．The California Greens are covering their eyes．
B．People in California love to talk about zero-emissions vehicles
C．People in California love to have their roofs covered with solar cells
D．People there have no idea that so far electricity mainly comes from burning coal, oil, etc
2．According to the passage, why the California Greens hold the idea “If I can’t see it, it’s not happening?”
A．They do not know those clean cars are likely coal-burning cars．
B．They do believe that the coal is burned somewhere else so it look clean．
C．They tend to hold that electricity is a nice part of energy
D．They tend to maintain that gasoline is a good way to run a vehicle．
3．Compared with cars using gas, electric cars ．
A．do not burn fuel and more environmental．
B．are dangerous and it is difficult for nature to clean it up when their batteries are buried in one spot．
C．are very good at cleaning up when things are not too concentrated．
D．are poisonous for a long time and will eventually end up in a landfill．
4．It can be inferred from the passage that ．
A．being green is good and should be encouraged in communications．
B．electric cars are not as clean as people assume in that electricity is mainly got by burning something．
C．zero-emissions vehicles should be chosen to protect our environment．
D．electric cars are now the primary vehicle compared with gasoline powered cousins．
查看习题详情和答案>>The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has transformed hundreds of millions of lives – almost entirely for the better. But there’s a byproduct to that growth, one that’s evident – or sometimes less than evident – in the smoggy, smelly skies above cities like Beijing, New Delhi and Jakarta. Thanks to new cars and power plants, air pollution is bad and getting worse in much of the world, and it’s taking a major toll (伤亡人数，代价) on global health.
How big? According to a new analysis published in the Lancet, more than 3.2 million people suffered deaths from air pollution in 2010, the largest number on record. That’s up from 800,000 in 2000. And it’s a regional problem: 65% of those deaths occurred in Asia, where the air is choked by diesel soot (内燃发动机烟雾) from cars and trucks, as well as the song from power plants and the dust from endless urban construction. In East Asia and China, 1.2 million people died, as well as another 712,000 in South Asia, including India. For the first time ever, air pollution is on the world’s top – 10 list of killers, and it’s moving up the ranks faster than any other factor.
So how can air pollution be so damaging? It is the very finest soot – so small that it roots deep within the lungs and then enters the bloodstream – that contributes to most of the public – health toll of air pollution including death. Diesel soot, which can also cause cancer, is a major problem because it is concentrated in cities along transportation zones affecting overpopulated areas. It is thought to contribute to half the deaths from air pollution in urban centers. Fro example, 1 in 6 people in the U.S. live near a diesel – pollution hot spot like a rail yard, port terminal or freeway.
We also know that air pollution may be linked to other non – deadly diseases. Fortunately in the U.S. and other developed nations, urban air is for the most part cleaner than it was 30 or 40 years ago, thanks to regulations and new technologies like the catalytic converters (催化式排气净化器) that reduce automobile emissions. Govemments are also pushing to make air cleaner – see the White House’s move last week to further tighten soot standards. It’s not perfect, but we’ve had much more success dealing with air pollution than climate change.
Will developing nations like India eventually catch up? Hopefully – though the problem may get worse before it gets better. The good news is that it doesn’t take a major technological advance to improve urban air. Switching from diesel fuel to unleaded (无铅燃油) helps, as do newer and cleaner cars which are less likely to send out pollutants. Power plants – even ones that burn mineral fuels like coal – can be fitted with pollution – control equipment that, at a price, will greatly reduce smog and other pollutants.
But the best solutions may involve urban design. In the Guardian, John Vidal notes that Delhi now has 200 cars per 1,000 people, far more than much richer Asian cities like Hong Kong and Singapore. Developing cities will almost certainly see an increase in car ownership as residents become wealthier – and that doesn’t have to mean deadly air pollution. Higher incomes should also lead to tougher environmental regulations, which is exactly what happened in the West. We can only hope it happens before the death toll from bad air gets even higher.
1.What tends to give rise to the highest death toll according to the passage?
A．The lack of tight environmental protection standards.
B．The increasing numbers of the diesel cars and trucks.
C．The frighteningly high death rate from deadly cancer.
D．The world’s serious air pollution such as soot and dust.
2.The “byproduct” (Paragraph 1) most probably refers to .
A．consequence B．solution C．reform D．design
3.The basic reason why so many people die from air pollution is that .
A．the diesel soot is too small to be seen
B．the diesel soot is much too poisonous to breathe
C．the diesel soot roots in lungs and gets into blood
D．the diesel soot can also contribute to deadly cancer
4.According to the passage, the writer actually wants to convince the readers that .
A．the global economic growth is mainly to blame for air pollution and climate change
B．the developing countries are repeating the same mistakes as the developed ones made
C．the ecological situation and air pollution in India are becoming worse and worse
D．the unbeatable air is increasingly becoming a major killer throughout the world
5.By describing urban design as “the best solution” in the last paragraph, the writer means that .
A．the making of tougher environmental regulations alone is of little use
B．more sever regulations should be made to handle air pollution
C．the urban construction in western developed countries is the best choice
D．the pace of development has to be slowed down to reduce air pollution
查看习题详情和答案>>
The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has transformed hundreds of millions of lives – almost entirely for the better. But there’s a byproduct to that growth, one that’s evident – or sometimes less than evident – in the smoggy, smelly skies above cities like Beijing, New Delhi and Jakarta. Thanks to new cars and power plants, air pollution is bad and getting worse in much of the world, and it’s taking a major toll (伤亡人数，代价) on global health.
How big? According to a new analysis published in the Lancet, more than 3.2 million people suffered deaths from air pollution in 2010, the largest number on record. That’s up from 800,000 in 2000. And it’s a regional problem: 65% of those deaths occurred in Asia, where the air is choked by diesel soot (内燃发动机烟雾) from cars and trucks, as well as the song from power plants and the dust from endless urban construction. In East Asia and China, 1.2 million people died, as well as another 712,000 in South Asia, including India. For the first time ever, air pollution is on the world’s top – 10 list of killers, and it’s moving up the ranks faster than any other factor.
So how can air pollution be so damaging? It is the very finest soot – so small that it roots deep within the lungs and from the enters the bloodstream – that contributes to most of the public – health toll of air pollution including death. Diesel soot, which can also cause cancer, is a major problem because it is concentrated in cities along transportation zones affecting overpopulated areas. It is thought to contribute to half the deaths from air pollution in urban centers. Fro example, 1 in 6 people in the U.S. live near a diesel – pollution hot spot like a rail yard, port terminal or freeway.
We also know that air pollution may be linked to other non – deadly diseases. Fortunately in the U.S. and other developed nations, urban air is for the most part cleaner than it was 30 or 40 years ago, thanks to regulations and new technologies like the catalytic converters (催化式排气净化器) that reduce automobile emissions. Governments are also pushing to make air cleaner – see the White House’s move last week to further tighten soot standards. It’s not perfect, but we’ve had much more success dealing with air pollution than climate change.
Will developing nations like India eventually catch up? Hopefully – though the problem may get worse before it gets better. The good news is that it doesn’t take a major technological advance to improve urban air. Switching from diesel fuel to unleaded (无铅燃油) helps, as do newer and cleaner cars which are less likely to send out pollutants. Power plants – even ones that burn mineral fuels like coal – can be fitted with pollution – control equipment that, at a price, will greatly reduce smog and other pollutants.
But the best solutions may involve urban design. In the Guardian, John Vidal notes that Delhi now has 200 cars per 1,000 people, far more than much richer Asian cities like Hong Kong and Singapore. Developing cities will almost certainly see an increase in care ownership as residents become wealthier – and that doesn’t have to mean deadly air pollution. Higher incomes should also lead to tougher environmental regulations, witch is exactly what happened in the West. We can only hope it happens before the death toll from bad air gets even higher.
1.What tends to give rise to the highest death toll according to the passage?
A．The lack of tight environmental protection standards.
B．The increasing numbers of the diesel cars and trucks.
C．The frighteningly high death rate from deadly cancer.
D．The world’s serious air pollution such as soot and dust.
2.The “byproduct” (Paragraph 1) most probably refers to .
A．consequence B．solution C．reform D．design
3.The basic reason why so many people die from air pollution is that .
A．the diesel soot is too small to be seen
B．the diesel soot is much too poisonous to breathe
C．the diesel soot roots in lungs and gets into blood
D．the diesel soot can also contribute to deadly cancer
4.According to the passage, the writer actually wants to convince the readers that .
A．the global economic growth is mainly to blame for air pollution and climate change
B．the developing countries are repeating the same mistakes as the developed ones made
C．the ecological situation and air pollution in India are becoming worse and worse
D．the unbeatable air is increasingly becoming a major killer throughout the world
5.By describing urban design as “the best solution” in the last paragraph, the writer means that .
A．the making of tougher environmental regulations alone is of little use
B．more sever regulations should be made to handle air pollution
C．the urban construction in western developed countries is the best choice
D．the pace of development has to be slowed down to reduce air pollution
查看习题详情和答案>>
The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has transformed hundreds of millions of lives – almost entirely for the better. But there’s a byproduct to that growth, one that’s evident – or sometimes less than evident – in the smoggy, smelly skies above cities like Beijing, New Delhi and Jakarta. Thanks to new cars and power plants, air pollution is bad and getting worse in much of the world, and it’s taking a major toll (伤亡人数，代价) on global health.
How big? According to a new analysis published in the Lancet, more than 3.2 million people suffered deaths from air pollution in 2010, the largest number on record. That’s up from 800,000 in 2000. And it’s a regional problem: 65% of those deaths occurred in Asia, where the air is choked by diesel soot (内燃发动机烟雾) from cars and trucks, as well as the song from power plants and the dust from endless urban construction. In East Asia and China, 1.2 million people died, as well as another 712,000 in South Asia, including India. For the first time ever, air pollution is on the world’s top – 10 list of killers, and it’s moving up the ranks faster than any other factor.
So how can air pollution be so damaging? It is the very finest soot – so small that it roots deep within the lungs and from the enters the bloodstream – that contributes to most of the public – health toll of air pollution including death. Diesel soot, which can also cause cancer, is a major problem because it is concentrated in cities along transportation zones affecting overpopulated areas. It is thought to contribute to half the deaths from air pollution in urban centers. Fro example, 1 in 6 people in the U.S. live near a diesel – pollution hot spot like a rail yard, port terminal or freeway.
We also know that air pollution may be linked to other non – deadly diseases. Fortunately in the U.S. and other developed nations, urban air is for the most part cleaner than it was 30 or 40 years ago, thanks to regulations and new technologies like the catalytic converters (催化式排气净化器) that reduce automobile emissions. Govemments are also pushing to make air cleaner – see the White House’s move last week to further tighten soot standards. It’s not perfect, but we’ve had much more success dealing with air pollution than climate change.
Will developing nations like India eventually catch up? Hopefully – though the problem may get worse before it gets better. The good news is that it doesn’t take a major technological advance to improve urban air. Switching from diesel fuel to unleaded (无铅燃油) helps, as do newer and cleaner cars which are less likely to send out pollutants. Power plants – even ones that burn mineral fuels like coal – can be fitted with pollution – control equipment that, at a price, will greatly reduce smog and other pollutants.
But the best solutions may involve urban design. In the Guardian, John Vidal notes that Delhi now has 200 cars per 1,000 people, far more than much richer Asian cities like Hong Kong and Singapore. Developing cities will almost certainly see an increase in care ownership as residents become wealthier – and that doesn’t have to mean deadly air pollution. Higher incomes should also lead to tougher environmental regulations, witch is exactly what happened in the West. We can only hope it happens before the death toll from bad air gets even higher.
46．What tends to give rise to the highest death toll according to the passage?
A．The lack of tight environmental protection standards.
B．The increasing numbers of the diesel cars and trucks.
C．The frighteningly high death rate from deadly cancer.
D．The world’s serious air pollution such as soot and dust.
47．The “byproduct” (Paragraph 1) most probably refers to .
A．consequence B．solution C．reform D．design
48．The basic reason why so many people die from air pollution is that .
A．the diesel soot is too small to be seen
B．the diesel soot is much too poisonous to breathe
C．the diesel soot roots in lungs and gets into blood
D．the diesel soot can also contribute to deadly cancer
49．According to the passage, the writer actually wants to convince the readers that .
A．the global economic growth is mainly to blame for air pollution and climate change
B．the developing countries are repeating the same mistakes as the developed ones made
C．the ecological situation and air pollution in India are becoming worse and worse
D．the unbeatable air is increasingly becoming a major killer throughout the world
50．By describing urban design as “the best solution” in the last paragraph, the writer means that .
A．the making of tougher environmental regulations alone is of little use
B．more sever regulations should be made to handle air pollution
C．the urban construction in western developed countries is the best choice
D．the pace of development has to be slowed down to reduce air pollution
查看习题详情和答案>>第二卷 （共50分）
VI．完形填空（共20小题；每小题1分，满分20分）
I ran into a stranger as he passed by, and I at once apologized to him. We were both very 71 , the stranger and I. Then we went 72 our way after saying good-bye.
But at home a 73 story is told. Later that day, when I 74 supper in the kitchen, my daughter suddenly stood behind me very 75 . When I turned back, I 76 knocked her down. “Don’t be in my 37 !” I shouted angrily. She walked away with her little heart 78 . On the kitchen floor later, I found some flowers by the door.
That night, while I lay 79 in bed, a voice in my deep heart said, “While 80 with a stranger, you are so polite, but with the children you love, you are so easily 81 . Why are there some flowers by the door? Those are the flowers she brought for you. She 82 them herself, pink, yellow and your favorite blue. She stood quietly in order to give you a 83 , and you never saw the 84 in her eyes.”
By this time, I felt very 85 and now my tears began to fall. I quietly went and knelt (跪下) by her 86 , “Wake up, little girl, wake up,” I said, “Are these the flowers you picked for me?” She smiled, “Yes, because I knew you’d like them, especially the 87 .” I said, “Daughter, I’m sorry for the way I acted today; I 88 have shouted at you that way.”
She said, “Oh, Mom, that’s okay. I love you 89 .” I hugged her and said, “Daughter, I love you too, and I do like the flowers.”
Through this 90 , I realize what FAMILY means:
FAMILY=(F)ATHER (A)ND (M)OTHER, (I) (L)OVE (Y)OU
71. A. rude B. polite C. educated D. happy
72. A. in B. to C. on D. for
73. A. different B. funny C. moving D. terrible
74. A. had B. ate C. prepared D. took
75. A. quickly B. quietly C. noisily D. seriously
76. A. nearly B. hardly C. already D. even
77. A. kitchen B. room C. place D. way
78. A. beaten B. missing C. broken D. hit
79. A. alive B. asleep C. awake D. afraid
80. A. talking B. dealing C. working D. meeting
81. A. worried B. nervous C. excited D. disappointed
82. A. grew B. picked C. bought D. planted
83. A. gift B. flower C. kiss D. surprise
84. A. expression B. tears C. happiness D. joy
85. A. small B. proud C. weak D. hurt
86. A. table B. desk C. bed D. knees
87. A. pink B. blue C. yellow D. green
88. A. couldn’t B. mustn’t C. shouldn’t D. needn’t
89. A. however B. truly C. though D. anyway
90. A. accident B. experience C. question D. problem
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