Industrial emissions (排放) of carbon dioxide and other planet-warming greenhouse gases have raised the global average temperature by about 0.8°C since the beginning of the Industrial Revolution. But studies have disagreed about what impact the rise is having on the world’s species, says Mark Urban, an ecologist at the University of Connecticut, Storrs. Some have estimated that as many as 54% of species could eventually become extinct as a result of the climate change, but others have suggested no significant impact.①
Such disparate result might originate from the limited nature of some individual studies, possibly because they focused only on a few species or a relatively small geographical region, says Urban.② To address these limits, Urban used statistical methods to help blend the results of previous studies into an apples-to-apples comparison that estimates the risk of extinction of species worldwide.
③He chose to analyze only the results of studies that had assessed extinction risks of more than one species. Then he researched into the details, such as the regions in which species considered, whether those species were limited to one small region or were widely spread, and whether the species were free to move as climate changed or were blocked by barriers such as mountain ranges or urban development.④
Effects of climate change aren’t always immediate, Urban says, and the risks of extinction he’s estimated are the long-term results of species not being able to find a suitable habitat. Maybe the habitat will merely shrink to a size that can’t support the species, or maybe it will disappear entirely. In some cases, he notes, a species might not be able to outpace the shift in its range, dying out before it can reach a new homeland. For over the generations that rapid warming might kill them off before they can spread to a suitable new habitat.
1.What is the passage aimed to tell us?
A. It is the Industrial Revolution that raised the global average temperature.
B. Mark Urban is an ecologist at the University of Connecticut, Storrs.
C. The climate change contributes to almost all the species dying out.
D. Global warming is not a main factor accounting for species extinction.
2.The sentence “And different teams have often used different methods to come up with their predictions.” can be placed in ________.
A. ① B. ② C. ③ D. ④
3.According to Mark Urban in Paragraph 4, some species died out mainly because of ________.
A. the rising temperatures B. human activities
C. their low birth rates D. the loss of their habitats
高二英语阅读理解困难题
Industrial emissions (排放) of carbon dioxide and other planet-warming greenhouse gases have raised the global average temperature by about 0.8°C since the beginning of the Industrial Revolution. But studies have disagreed about what impact the rise is having on the world’s species, says Mark Urban, an ecologist at the University of Connecticut, Storrs. Some have estimated that as many as 54% of species could eventually become extinct as a result of the climate change, but others have suggested no significant impact.①
Such disparate result might originate from the limited nature of some individual studies, possibly because they focused only on a few species or a relatively small geographical region, says Urban.② To address these limits, Urban used statistical methods to help blend the results of previous studies into an apples-to-apples comparison that estimates the risk of extinction of species worldwide.
③He chose to analyze only the results of studies that had assessed extinction risks of more than one species. Then he researched into the details, such as the regions in which species considered, whether those species were limited to one small region or were widely spread, and whether the species were free to move as climate changed or were blocked by barriers such as mountain ranges or urban development.④
Effects of climate change aren’t always immediate, Urban says, and the risks of extinction he’s estimated are the long-term results of species not being able to find a suitable habitat. Maybe the habitat will merely shrink to a size that can’t support the species, or maybe it will disappear entirely. In some cases, he notes, a species might not be able to outpace the shift in its range, dying out before it can reach a new homeland. For over the generations that rapid warming might kill them off before they can spread to a suitable new habitat.
1.What is the passage aimed to tell us?
A. It is the Industrial Revolution that raised the global average temperature.
B. Mark Urban is an ecologist at the University of Connecticut, Storrs.
C. The climate change contributes to almost all the species dying out.
D. Global warming is not a main factor accounting for species extinction.
2.The sentence “And different teams have often used different methods to come up with their predictions.” can be placed in ________.
A. ① B. ② C. ③ D. ④
3.According to Mark Urban in Paragraph 4, some species died out mainly because of ________.
A. the rising temperatures B. human activities
C. their low birth rates D. the loss of their habitats
高二英语阅读理解困难题查看答案及解析
The view________many scientists hold is________too much emission （排放）of carbon dioxide is destructive.
| A．which；which | B．that；that |
| C．that；which | D．what；that |
高二英语单项填空中等难度题查看答案及解析
The view ______ many scientists hold is ______ too much emission of carbon dioxide is destructive.
A．what; that B．that; which
C．that; that D．which; which
高二英语单项填空中等难度题查看答案及解析
If we want ______much cleaner world, we should reduce _______ emission of carbon dioxide.
A. a; a B. a; / C. a; the D. the; /
高二英语单项填空中等难度题查看答案及解析
Scientists are increasely _____ that the earth is getting hotter because of carbon dioxide and other gases.
A. content B. conscious C. convinced D. common
高二英语单项填空中等难度题查看答案及解析
The planet is getting greener, and we are responsible. Carbon dioxide generated by human activities is promoting photosynthesis (光合作用) and causing a beneficial greening of the Earth’s surface.
For the first time, researchers claim to have shown that the increase in plant cover is due to this “CO2 fertilisation (肥沃化) effect” rather than other causes. However, it remains unclear whether the effect can reduce any negative effects of global warming, such as the spread of deserts.
To home in on the effect of CO2, Randall Donohue of Australia’s national research institute, the CSIRO in Canberra, monitored vegetation (植被) at the edges of deserts in Australia, southern Africa, the US Southwest, North Africa, the Middle East and central Asia. These are regions where there is plenty of warmth and sunlight, but only just enough rainfall for vegetation to grow, so any change in plant cover must be the result of a change in rainfall patterns or CO2 levels, or both.
If CO2 levels were constant, then the amount of vegetation per unit of rainfall ought to be constant, too. However, the team found that this figure rose by 11 per cent in these areas between 1982 and 2010, mirroring the rise in CO2 emissions (排放). Donohue says this lends strong support to the idea that CO2 fertilization drove the greening.
The extra plant growth could have knock-on effects on climate, Donohue says, by increasing rainfall, affecting river flows and changing the likelihood of wildfires. It will also absorb more CO2 from the air, potentially damping down (抑制) global warming but also limiting the CO2 fertilization effect itself.
Donohue cannot yet say to what extent CO2 fertilisation will affect vegetation in the coming decades. But if it proves to be significant, the future may be much greener.
1.According to the author, the increase in plant cover _____.
A. will speed up global warming
B. results from human activities
C. will stop the spread of deserts
D. promotes the CO2 fertilization effect
2.What does the underlined phrase “To home in on” in Para 3 probably mean?
A. To hold back. B. To cut down.
C. To improve. D. To observe.
3. The amount of vegetation in those monitored areas rose with _____.
A. the rise in CO2 emissions B. annual rainfall
C. the temperatures around D. the amount of sunlight
4.What’s the best title of the text?
A. More rainfall, less CO2 emission
B. How to deal with carbon emissions
C. Positive effects of global warming
D. CO2 emission making Earth greener
高二英语阅读理解中等难度题查看答案及解析
根据短文内容，从短文后的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。
1 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 landfill. While you’re there, pick up some free bags of spent coffee grounds to use as “green” fertilizer in your garden.
The payoff:2
Strategy 2: Turn off your computer
When in standby mode, your PC is still using energy. 3
The payoff: Turning off a monitor for 40 hours a week may only save $5 a month, but it reduces CO? 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.
The payoff: 4 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.
The payoff: If every household replaced one roll of toilet paper with a recycled one, 424000 trees 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. 5.
The payoff: If we all used one Energy Star appliance at home, it would be like planting 1.7 million acres of new trees.
| A．You can be proud of yourselves, even if you can only make one or two of these green changes. |
| B．Adding green to your garden is beautiful and earth-pleasing. |
| C．It might be a little expensive to buy, but you’ll save money on your electricity bills and help the environment. |
| D．In fact, 75 percent of electricity used in your home comes from electronics that are not turned off. |
E. You’re reducing pollution.
F. The store won’t create more waste when they throw away a cup.
G. Just one tree will help make cleaner air and save the environmrnt from 5000 pounds of hot carbon dioxide each year.
高二英语信息匹配中等难度题查看答案及解析
Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. “We've been going to the same spot in the Pacific Ocean, and we try and characterize longterm change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we've been able to record this increasing quantity of atmospheric CO2 into the ocean.”
Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
“As carbon dioxide dissolves in the water, or seawater in this case, it forms a weak acid, carbonic acid，” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the PH down, and makes it more acidic.”
The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
“It's important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It's potentially catastrophic.”
1.What can be the best title of the passage?
A．Climate Change Affecting Seawater
B．Oceans Becoming More Acidic
C．Sea Life Facing Danger
D．Scientist Researching Seawater
2.With the increase of atmospheric CO2，________.
A．the surface water is becoming warmer
B．more corals will appear in the sea
C．the PH of the ocean out here has been increasing
D．the chemical balance of the seawater is affected
3.Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a．Sea life is endangered.
b．CO2 goes into the surface water.
c．The ocean chemistry is affected.
d．CO2 decreases the PH and makes the seawater more acidic.
e. CO2 levels in the atmosphere go up.
A．a→e→b→c→d B．e→d→c→b→a
C．e→b→c→d→a D．a→b→c→d→e
高二英语阅读理解中等难度题查看答案及解析
Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmosphere CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. “We’ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we’ve been able to record this increasing quantity of atmosphere CO2 into the ocean.”
Scientists expected that as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
“As carbon dioxide dissolves in the water or seawater in this case, it forms a weak acid, carbonic acid,” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic.”
The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
“It’s important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic.”
1.What can be the best title of the passage?
A. Scientist Researching Seawater
B. Sea Life Facing Danger
C. Oceans Becoming More Acidic
D. Climate Change Affecting Seawater
2.With the increase of atmospheric CO2, _______.
A. more corals will appear in the sea
B. the chemical balance of the seawater is affected
C. the surface water is becoming warmer
D. the pH of the ocean out here has been increasing
3.Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a. Sea life is endangered.
b. CO2 goes into the surface water.
c. The ocean chemistry is affected.
d. CO2 decreases the pH and makes the seawater more acidic.
e. CO2 levels in the atmosphere go up.
A. a→b→c→d→e B. e→b→c→d→a
C. a→e→b→c→d D. e→d→c→b→a
4.Scientist Robert Dore came to the conclusion based on_______.
A. the expectation of other scientists
B. some former theory
C. his research and analysis
D. a major cause of climate change
高二英语阅读理解中等难度题查看答案及解析
Large quantities of solid fuel ________ consumed every day and too much carbon dioxide is sent into the air，which in turn ________ the going up of temperature.
A．is；results in B．are；results in
C．is；leads to D．are；results from
高二英语单项填空中等难度题查看答案及解析