Terribly hot weather. Pouring downpours. Scientists have long suspected that global warming can caus
英语试题 03-12
Terribly hot weather. Pouring downpours. Scientists have long suspected that global warming can cause extreme weather events. Now experts have numbers to support that idea.
The burning of fossil fuels has been leading to a build-up of carbon dioxide in the Earth’s atmosphere. This CO2 is a greenhouse gas. That means it can trap heat in the air. As a result, our planet’s temperature has been rising. And this global warming will account for a growing share of ever more frequent extreme weather events.
Many governments hope to limit global warming to 2 degrees Celsius above temperatures that were typical before the Industrial Revolution. It will be hard for nations to achieve that. But even if they do, global warming still will be responsible for nearly all heat extremes. Global warming will also be to blame for about 2 out of every 5 extreme rains and snowfalls. “This is a considerable fraction(分数) of major weather events,” says climate scientist Peter Stott.
So far, the Earth has warmed about 0.85 degree Celsius since 1750. That’s about when the Industrial Revolution got its start. That’s also when fossil fuel use took off, spewing(喷出) lots of CO2 into the air. “Overall, the new study shows that relatively small rises in the global temperature translate into large increases in the likelihood of extremes,” Stott says.
Erich Fischer and Reto Knutti analyzed 25 different computer models of global climate. These analyses looked at different climate periods, from preindustrial times to the present. The analyses also predicted what weather events were likely to be like in the future. This period was predicted to be warmer by 2 and 3 degrees Celsius.
The computer looked at when extreme heat and precipitation(降水量) occurred during each climate period. It focused on events of unusual heat or heavy precipitation. Before the Industrial Revolution, such extremes typically would have occurred only once in every 1,000 days.
“But since the globe has been warming, such extremes are no longer nearly as rare. These new findings provide a global statement,” Fischer says. “You can still get the biggest heat that you have ever seen without any human changes.”
32.The second paragraph is mainly about ________.
A.what damage global warming caused
B.how global warming came into being
C.where global warming is becoming serious
D.why fossil fuels have to be forbidden
33.What Peter said in Para. 3 suggests that ________.
A.it is reasonable for climate change to happen
B.there is no serious effect of global warming now
C.the influence of global warming is great
D.the extreme weather happens in small numbers
34.In the future, the temperature may rise at least by ________ degrees Celsius.
A.2.5 B. 3 C. 4 D. 2
35.According to the passage, extreme weather ________.
A.will happen more often than before
B.happens once in every 1,000 days
The burning of fossil fuels has been leading to a build-up of carbon dioxide in the Earth’s atmosphere. This CO2 is a greenhouse gas. That means it can trap heat in the air. As a result, our planet’s temperature has been rising. And this global warming will account for a growing share of ever more frequent extreme weather events.
Many governments hope to limit global warming to 2 degrees Celsius above temperatures that were typical before the Industrial Revolution. It will be hard for nations to achieve that. But even if they do, global warming still will be responsible for nearly all heat extremes. Global warming will also be to blame for about 2 out of every 5 extreme rains and snowfalls. “This is a considerable fraction(分数) of major weather events,” says climate scientist Peter Stott.
So far, the Earth has warmed about 0.85 degree Celsius since 1750. That’s about when the Industrial Revolution got its start. That’s also when fossil fuel use took off, spewing(喷出) lots of CO2 into the air. “Overall, the new study shows that relatively small rises in the global temperature translate into large increases in the likelihood of extremes,” Stott says.
Erich Fischer and Reto Knutti analyzed 25 different computer models of global climate. These analyses looked at different climate periods, from preindustrial times to the present. The analyses also predicted what weather events were likely to be like in the future. This period was predicted to be warmer by 2 and 3 degrees Celsius.
The computer looked at when extreme heat and precipitation(降水量) occurred during each climate period. It focused on events of unusual heat or heavy precipitation. Before the Industrial Revolution, such extremes typically would have occurred only once in every 1,000 days.
“But since the globe has been warming, such extremes are no longer nearly as rare. These new findings provide a global statement,” Fischer says. “You can still get the biggest heat that you have ever seen without any human changes.”
32.The second paragraph is mainly about ________.
A.what damage global warming caused
B.how global warming came into being
C.where global warming is becoming serious
D.why fossil fuels have to be forbidden
33.What Peter said in Para. 3 suggests that ________.
A.it is reasonable for climate change to happen
B.there is no serious effect of global warming now
C.the influence of global warming is great
D.the extreme weather happens in small numbers
34.In the future, the temperature may rise at least by ________ degrees Celsius.
A.2.5 B. 3 C. 4 D. 2
35.According to the passage, extreme weather ________.
A.will happen more often than before
B.happens once in every 1,000 days
苏19057182-3号