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Global industrialization has poured carbon in the sky, and now we must pay the price: the nasty climate change, with its sinking
Global industrialization has poured carbon in the sky, and now we must pay the price: the nasty climate change, with its sinking
admin
2015-07-05
65
问题
Global industrialization has poured carbon in the sky, and now we must pay the price: the nasty climate change, with its sinking islands and superstorms. But what if we could【C1】______some of that carbon dioxide back down to earth?
Direct air capture (DAC) is the capture of carbon from the sky. Unlike【C2】______carbon capture and storage, DAC doesn’t try to simply capture carbon from chimneys and factory pipes: instead, it collects carbon directly from the【C3】______, no intermediate steps necessary. Better yet, the most sophisticated DAC plants don’t even need much electricity to function—they run on excess heat produced by other industrial processes. The temperatures needed to capture a ton of atmospheric carbon dioxide are "less than what is needed to【C4】______you a cup of tea," says Graciela Chichilnisky, founder of direct air capture company Global Thermostat. The CO
2
removed from the air by plants like Chichilnisky’s has a【C5】______of applications. " A lot of demand for CO
2
is unmet," says Chichilnisky. " In fact there’s a market for it that【C6】______one trillion dollars per year. "
Companies like Chichilnisky’s want to profit from this unmet demand, an aggressive example of doing well while doing good. Global Thermostat’s pilot plant at the Stanford Research Institute in Menlo Park, California, has been【C7】______since construction finished, says Chichilnisky. Now she wants to build plants elsewhere, using the excess heat from power plants. " If the【C8】______shows the way to be profitable is by cleaning up the atmosphere, then this will be the strongest motivation for the world to attack climate change. "
So can DAC save the world? Not quite yet. There’s a lot of concern among【C9】______advocates as to whether DAC can ever scale to the extent where it makes any deduction in the carbon we’re【C10】______pouring in the atmosphere. Moreover, despite the cost claims of Chichilnisky and others in the underdeveloped DAC industry, the jury’s still out on whether the cost of atmosphere-extracted carbon could ever get low enough to provide DAC plants with a profitable business model.
A) technology I) exceeds
B) currently J) atmosphere
C) boil K) unlimitedly
D) produce L) bring
E) profitable M) advanced
F) fame N) variety
G) environmental O) traditional
H) solution
【C2】
选项
答案
O
解析
空格位于介词短语中,前有介词Unlike,后为名词短语carbon capture and storage,由此判断空格处需要填入一个形容词,修饰空格后的名词短语。DAC是通过新兴技术回收二氧化碳的,与以往的碳捕捉、储存方式不同,故答案为O)traditional“传统的,惯例的”。备选形容词中,profitable和environmental与上下文语义不符,故均排除;虽然advanced可以与carbon capture and storage搭配,但如果以往的方式更加“先进”,就不需要再研究DAC了,故也可排除。
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0
大学英语六级
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