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If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasoline-powered cars 50 years from now, giving out heat-trapping carbon dioxide into the atmosphere — and yet that carbon dioxide will not contribute to global warming.
In a proposal by two scientists, vehicle emissions (排放) would no longer contribute to global warming. The scientists, F. Jeffrey Martin and William L. Kubic Jr., are proposing a concept, which they have named Green Freedom, for removing carbon dioxide from the air and turning it back into gasoline.
The idea is simple. Air would be blown over a liquid solution (溶液) of potassium carbonate, which would absorb the carbon dioxide. The carbon dioxide would then be put to chemical reactions that would turn it into fuel: gasoline or jet fuel.
This process could change carbon dioxide from an unwanted, climate-changing pollutant into a vast resource for renewable fuels. The cycle — equal amounts of carbon dioxide produced and removed — would mean that cars, trucks and airplanes using the synthetic (合成的) fuels would no longer be contributing to global warming.
Although they have not yet built a synthetic fuel factory, or even a small model, the scientists say it is all based on existing technology. “Everything in the concept has been built, is operating or has a close cousin that is operating,” Dr. Martin said.
The Los Alamos proposal does not go against any laws of physics, and other scientists who have independently suggested similar ideas. Dr. Martin said he and Dr. Kubic had worked out their concept in more detail than previous proposals.
There is, however, a major fact that explains why no one has built a carbon-dioxide-to-gasoline factory: it requires a great deal of energy.
According to their analysis, their concept, which would cost about $5 billion to build, could produce gasoline at an operating cost of $1.40 a gallon and would turn economically practical when the price at the pump hits $4.60 a gallon.
Other scientists said the Los Alamos proposal perhaps looked promising but could not evaluate it fully because the details had not been published.
“It’s definitely worth pursuing,” said Martin I. Hoffert, a professor of physics at New York University. “It’s not that new an idea. It has a couple of pieces to it that are interesting.”
67. What is the idea of the project being discussed in the article?
A. Recycling the carbon dioxide from cars back into gasoline.
B. Create a new gasoline that gives off very little carbon dioxide.
C. Using a special liquid solution to absorb carbon dioxide from cars.
D. Build synthetic fuel factories to remove carbon dioxide from the air.
68. What’s the name given to the new concept?
A. Synthetic Fuel. B. Green Freedom.
C. Renewable Fuel. D. Carbon-dioxide-to-gasoline Factory.
69. Which of the following is NOT one of the benefits of this new concept as suggested in the article?
A. Reduction of global warming. B. Cheaper gasoline for cars.
C. Longer life of cars. C. Less pollution of the atmosphere.
70. What’s the biggest problem in realizing the concept according to the report?
A. Shortage of starting funds. B. Immature technology involved.
C. All previous similar attempts have failed.
D. The use of too much energy in running the fuel factory.
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1.Your bad behavior really makes me feel (尴尬的).
2..He (承认) that Gangnam Style was his favourite song.
3. (电) is a form of energy that can be used for lighting.
4.WTO which stands for World Trade (组织)deals with the global rules of trade between nations.
5.Many people believe that Guo jingjing is f (幸运的，吉祥的)to marry Huo qigang.
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信息匹配（共5小题；每小题1分，满分5分）
请阅读下列应用文和相关信息，并按照要求匹配信息。请在答题卡上将对应题
号的相应选项字母涂黑 (若选择E，请涂AB；若选择F，请涂CD)。
以下是各个电视节目的简介：
A. Wild World——this exciting show takes you around the world to places of unimaginable natural beauty and danger. Learn more about our world and see animals as they live in nature.
Time：Friday 8.30－9.30 pm
B. Sports Sunday—learn what’s happening in the world of sport. See how your team performed, find out who is playing and watch interviews with all your favourite sports stars.
Time：Sunday 1-5 pm
C. The Music Man——John Rogers is a musician by day but a secret superhero crime fighter by night in this long—running television action drama.
Time：Weekdays 3.00－4.00 pm
D. Lateline——All the latest news and opinions from around the world. If you want to know where there is trouble in the world or the reasons behind the global economic crisis，join our team of award winning journalists.
Time：Weekdays 9—10 pm
E. Entertainment This Week—Covers the world of entertainment. Hear this week’s number one song, watch the newest movie reviews and listen to all the latest gossip about the stars.
Time：Saturday 6 pm
F. Pop Star—Hundreds of young and (sometimes) talented performers sing the latest songs and compete to see who will become the nation’s newest Pop Star.
Time：Thursday 7.30 pm
以下是每个人的情况介绍，请匹配每个人与其拟选择的电视节目：
76. John Smith. John loves football and as a senior company manager needs to know the latest economic news. He seldom gets home before 10 o’clock at night during the week so he likes to relax in front of TV on the weekend.
77. Joan Johnson. Joan is a housewife who sometimes feels bored at home so she enjoys watching exciting TV shows. When the kids are home on the weekends and after school she never gets a chance to watch TV as they want to watch the shows they like.
78. Bill West. Bill is a music fan and a musician. He is always trying to hear the newest and most popular songs and learn more about his competitors. He is usually free after he finishes work at 5 pm except on weekends when he plays with his musical group in a local club.
79. Sarah O’connor. Sarah is trying to decide where she will spend her summer vacation. She has a number of different places in mind but is worried about terrorism and her safety so she doesn’t want to go anywhere that is dangerous or may become dangerous soon.
80. Robert Wise. Robert is a fan of action. He loves to watch exciting TV shows whether they are fictional or real. He usually only has time to watch TV on weekday evenings as he works during the day and on weekends he likes to go hiking and camping.
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根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Are Societies Ageing Too Fast?
An ageing society is one in which the population of people over the age of 60 is increasing．The global population at present is about 6 billion with 1 person in every 10 aged 60 or above．_．This will mean that for the first time in human history the population of older persons will be larger than the population of children! What are the causes of this population change?
_．And another is that birthrates have dropped as people, especially women, are educated．Measures to slow population growth like China’s one-child policy, have also contributed to lowered birthrates．The increase in the aged population is not just an interesting trend, however; it also has severe implications for the future of global economies．
People traditionally retire at 65 and live on government pensions．_．Another concern is that as medical expenses increase with age, the demands of the growing aged population will eventually cause medical systems to face bankruptcy（破产）．
_．They suggest that because people are living longer, they ought to work longer, while governments need to establish a sound social security system．They also suggest that individuals start saving as soon as possible to ensure a financially secure retirement．People should also develop good health habits in their youth to ensure an active and productive old age．_．By finding cures for diseases like Alzheimer’s and cancer, medical bills and the need for care would be drastically reduced．
Finally, an important step to ensure a bright future for all is to do away with negative stereotypes that see valuable members of society only as pensioners or patients．It’s high time we stopped seeing ageing as a disease and started playing our parts in securing the future of our ageing societies．
A. Due to ageing problem, cities are facing more challenges．
B. Experts insist that steps should be taken now to prepare for the future．
C. As people grow older, a huge financial burden will be placed on the government．
D. Biomedical research is another tool we can use to deal with the problems of ageing societies．
E. One reason is that dramatic health advances have added 20 years to the average life-expectancy．
F. The United Nations projects that by 2050, it will be 1 in every 5．
G. As is known to all, good habits lead to good health．
查看习题详情和答案>>信息匹配（共5小题；每小题2分，满分10分）
请阅读下列应用文和相关信息，并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑 (若选择E，请涂AB；若选择F，请涂CD)。
以下是各个电视节目的简介：
Wild World——this exciting show takes you around the world to places of unimaginable natural beauty and danger. Learn more about our world and see animals as they live in nature.
Time：Friday 8.30－9.30 pm
Sports Sunday—learn what’s happening in the world of sport. See how your team performed, find out who is playing and watch interviews with all your favourite sports stars.
Time：Sunday 1-5 pm
The Music Man——John Rogers is a musician by day but a secret superhero crime fighter by night in this long—running television action drama.
Time：Weekdays 3.00－4.00 pm
Lateline——All the latest news and opinions from around the world. If you want to know where there is trouble in the world or the reasons behind the global economic crisis，join our team of award winning journalists.
Time：Weekdays 9—10 pm
Entertainment This Week—Covers the world of entertainment. Hear this week’s number one song, watch the newest movie reviews and listen to all the latest gossip about the stars.
Time：Saturday 6 pm
Pop Star—Hundreds of young and (sometimes) talented performers sing the latest songs and compete to see who will become the nation’s newest Pop Star.
Time：Thursday 7.30 pm
以下是每个人的情况介绍，请匹配每个人与其拟选择的电视节目：
Sarah O’connor. Sarah is trying to decide where she will spend her summer vacation. She has a number of different places in mind but is worried about terrorism and her safety so she doesn’t want to go anywhere that is dangerous or may become dangerous soon.
John Smith. John loves football and as a senior company manager needs to know the latest economic news. He seldom gets home before 10 o’clock at night during the week so he likes to relax in front of TV on the weekend.
Robert Wise. Robert is a fan of action. He loves to watch exciting TV shows whether they are fictional or real. He usually only has time to watch TV on weekday evenings as he works during the day and on weekends he likes to go hiking and camping.
Joan Johnson. Joan is a housewife who sometimes feels bored at home so she enjoys watching exciting TV shows. When the kids are home on the weekends and after school she never gets a chance to watch TV as they want to watch the shows they like.
Bill West. Bill is a music fan and a musician. He is always trying to hear the newest and most popular songs and learn more about his competitors. He is usually free after he finishes work at 5 pm except on weekends when he plays with his musical group in a local club.
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