問題詳情

II. Cloze Test:    Antarctica is melting at an a since 1992, a global team of scientists ___14___ in a new assessment of the effects ofglobal warming on Earth's southernmost continent. Lead author Andrew Shepherd ofthe University of Leeds in England said it is possible that Antarctica's melting alonecould add 16 centimeters to sea level rise across the globe by the end of this century."Under natural conditions, we don't expect the ice sheet to lose ice at all," Shepherdsaid. "There are no other plausible signals to be driving this ___15__ climate change."Shepherd said the melting is mostly caused by warmer waters. He said the southernocean is affected by shifting winds, which __16___ global warming from the burningof coal, oil and natural gas.    Co-author Ian Joughin of the University of Washington said, “part of WestAntarctica, ___17___ 70 percent of the recent melt has occurred, is in a state ofcollapse." A U.S. space agency scientist, co-lead author Eric Rignot, said, "We nowhave an unequivocal picture of___18___. We view these results as another ringingalarm for action to slow the warming of our planet." The scientists drew theirconclusions from two decades of satellite data, 24 separate space-based surveys totrack the loss of Antarctica's ice.
14.
(A) are concluded
(B) are concluding
(C) has concluded
(D) is concluding

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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