[不定项选择题]共用题干 Global Warming

1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse（温室）effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.
2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPC C).
3. IPCC scientists have suspected for a decade that aerosols（浮质）of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide（二氧化物）emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃．So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.
4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃．If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.
5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop. The increase of greenhouse gases_______.
A.will influence future climate change
B.was somewhat surprising
C.will rise rapidly
D.was known to US all
E.was much higher than had been expected
F.will drop dramatically

[不定项选择题]共用题干 Global Warming

1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse（温室）effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.
2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPC C).
3. IPCC scientists have suspected for a decade that aerosols（浮质）of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide（二氧化物）emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃．So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.
4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃．If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.
5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop. The Berlin workshop concluded that the real figure_______.
A.will influence future climate change
B.was somewhat surprising
C.will rise rapidly
D.was known to US all
E.was much higher than had been expected
F.will drop dramatically

[不定项选择题]共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.
In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.
The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.
In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand. _________(60)
A.negative
B.positive
C.similar
D.equal