题目内容
The amount of carbon taken in by growing plants increased from 1982 through 1999 as
temperatures rose and the amount of carbon dioxide in the atmosphere increased. But a new study
in Friday ’ s edition of the journal Science found a drought - related decline in such plant growth
from 2000 to 2009,even though temperatures continued to climb.
As drought caused by warming reduces the land ’ s ability to take in carbon,the result could
be more carbon dioxide left in the atmosphere,and thus more warming,Zhao Maosheng from the
University of Montana explained in a telephone interview.
“This is a pretty serious warning that warmer temperatures are not going to endlessly improve
plant growth ’” co - author Steven Running,also from the University of Montana ’ said in a
statement. “ We see this as a bit of a surprise,and potentially significant on a policy level because
previous interpretations suggested global warming might actually help plant growth around the
world, “ he said.
Instead, he and Zhao found a small but measurable decline of about 1%,compared to a 6%
increase in the past decade.
Their study,based on the data collected by NASA satellites,found that north areas continued
to increase plant growth,thanks to warmer temperatures and a longer growing season.
Someone commented, "This past decade’ s net decline in earthly productivity suggests that a
complex relationship between temperature, rainfall, cloudiness, and carbon dioxide, probably in
combination with other factors such as nutrients (营养)and land management,will determine
future patterns and trends in productivity.,,
From the first paragraph, we can learn in the recent decade or so.
the emission(排放)of carbon hasn’ t been reduced
draught has been causing loss of soil and water
carbon dioxide levels have been rising
the rise of temperature doesn' t promote the plant growth
Zhao Maosheng really worried that .
more and more land will be abandoned
the climate becomes warmer and warmer
the emission of carbon dioxide increases
draught further reduces the number of the plants
Steven Running made his statement to .
confirm Zhao' s views on the influence of temperature rise
urge the government to take necessary measures
warn the people to strengthen the plant protection
support Zhao* s views on lhe plant production
We can infer from the passage that .
global warming will determine the future productivity
various factors play a key role jointly on future productivity
earthly productivity actually increased in the past decade
temperature rise has had no effect on future producticity patterns
【小题1】D【小题1】B【小题1】A【小题1】B
解析:
略
You can be proud of yourselves, even if you can only make one or two of these green changes. The goal here is to limit carbon dioxide and other greenhouse gases, which are closely associated to the big problem of global-warming.
Strategy 1: Bring your own cup to Starbucks |
|
You'll get a 10-cent discount, and it's one less paper cup to end up in a dustbin |
The store won't create more waste when they throw away a cup |
Strategy 2: Turn off your computer |
|
When in standby mode, your PC is still using energy |
Turning off a monitor for 40 hours a week may only save $ 5 a month, but it reduces CO2 by 750 pounds |
Strategy 3: Reuse plastic bags |
|
Instead of throwing away 100 billion plastic bags a year, try and get a second, third, or tenth use out of them. Better yet, next time you shop, try a reusable bag |
You're reducing pollution. The amount of oil it would take to make just 14 plastic bags would run your car for one mile |
Strategy 4: Use recycled paper in the bathroom |
|
Most of the toilet paper we use is made from trees found in forests previously untouched by humans |
If every household replaced one roll of toilet paper with a recycled one,424,000trees would still be standing. Look for eco paper towels too |
Strategy 5: Buy energy-efficient appliances(电器) |
|
Replace the old fridge with an Energy Star appliance and you'll use 15 percent less energy. It might be a little expensive to buy, but you'll save money on your electricity bills and help the environment |
If we all used one Energy Star appliance at home, it would be like planting 1.7 million acres of new trees |
Strategy 6: Plant a tree |
|
Adding green to your garden is beautiful and earth-pleasing |
Just one tree will help make cleaner air and save the environment from 5, 000 pounds of hot carbon dioxide each year |
1.What is the best title for the passage?
A.Strategies to Save Money |
B.Ways to be Earth-Friendly |
C.Strategies to End Global-Warming |
D.Ways to Limit Carbon Dioxide |
2.According to the writer, what will happen if our PC is switched off when not in use?
A.It will help to save a large amount of money. |
B.It will help to reduce a great deal of CO2. |
C.It will save the amount of oil that runs your car for a mile. |
D.It will be like planting 1.7 million acres of new trees. |
3.Which strategies suggest recycling or reuse of things?
A.Strategies 1 & 3. |
B.Strategies 2 & 5. |
C.Strategies 3 & 6. |
D.Strategies 4 & 5. |
4.What benefits do these strategies have in common?
A.They all help reduce the use of energy like electricity. |
B.They all cut down the amount of the use of paper. |
C.They all result in producing less greenhouse gases. |
D.They all aid to preserve our trees and forest. |
Taiwan police cannot decide whether to treat it as an extremely act of stealing or an even cheat. Either way, it could be the perfect crime, because the criminals are birds—homing pigeons !
The crime begins with a telephone message to the owner of a stolen car: if you want the car back, pay up. Then, the car owner is directed to a park, told where to find a bird cage and how to attach money to the neck of the pigeon inside. Carrying the money in a tiny bag, the pigeon flies off.
There have been at least four such pigeon pick-ups in Changwa. What at first seemed like the work of a clever stay-at-home car thief, however, may in fact be the work of an even lazier and more inventive criminal mind—one that avoids not only collecting money but also going out to steal the car in the first place. Police officer Chen says that the criminal probably has pulled a double trick: he gets money for things he cannot possibly return. Instead of stealing cars, he lets someone else do it and then waits for the car-owner to place an advertisement in the newspaper asking for help.
The thought is supported by the fact that, so far, none of the stolen cars have been returned. Also, the amount of money demanded-under 3,000 Taiwanese dollars–seems too little for a car worth many times more.
Demands for pigeon-delivered money stopped as soon as the press reported the story. And even if they start again, Chen holds little hope of catching the criminal. “We have more important things to do,” he said.
1.After the car owner received a phone call, he _______.
A.went to a certain pigeon and put some money in the bag it carried |
B.gave the money to the thief and had his car back in a park |
C.sent some money to the thief by mail |
D.told the press about it |
2.The “lazier and more inventive” criminal refers to _______.
A.the car thief who stays at home |
B.one of those who put the ads in the paper |
C.one of the policemen in Changwa |
D.the owner of the pigeons |
3.The writer mentions the fact that “none of the stolen cars have been returned” to show _______.
A.how easily people get fooled by criminals |
B.what Chen thinks might be correct |
C.the thief is extremely clever |
D.the money paid is too little |
4.The underlined word “they” in the last paragraph refers to ____.
A.criminals |
B.pigeons |
C.the stolen cars |
D.demands for money |
5. We may infer from the text that the criminal knows how to reach the car owners because _______.
A.he reads the ads in the newspaper |
B.he lives in the same neighborhood |
C.he has seen the car owners in the park |
D.he has trained the pigeons to follow them |