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- 2022-6-15
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- 1970-1-1
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Day2
1.(173)The widely accepted big-bang theory holds that the universe began in an explosive instant 10 to 20 billion years ago and has been expanding ever since.
A.that the universe began in an explosive instant 10 to 20 billion years ago and has been expanding
B.that the universe had begun in an explosive instant 10 to 20 billion years ago and had been expanding
C.that the beginning of the universe was an explosive instant 10 to 20 billion years ago that has expanded
D.the beginning of the universe to have been an explosive instant 10 to 20 billion years ago that is expanding
E.the universe to have begun in an explosive instant 10 to 20 billion years ago and has been expanding、这里has been的主语是the universe,a感觉很正确,其他的都不行
2.(174)Often major economic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the financial markets.
A.so gradual as to be indistinguishable
B.so gradual so that they can be indistinguishable
C.so gradual that they are unable to be distinguished
D.gradual enough not to be distinguishable
E.gradual enough so that one cannot distinguish them
C, idiom: so +adj+ that, 这里有否定的意思,选c
3.(175)Experts estimate that ten times as much petroleum exists in sources like tar sands, heavy oil, and perhaps even in shale than in conventional reservoirs.
A.sources like tar sands, heavy oil, and perhaps even in shale than
B.sources like tar sands, heavy oil, and perhaps even in shale than are
C.such sources as tar sands, heavy oil, and perhaps even in shale as are
D.such sources as tar sands, heavy oil, and perhaps even shale as
E.such sources as tar sands, heavy oil, and perhaps even shale than
like在gmat里面不可以举例子,要用such as; 平行,in在最前面,后面并列的三个都不能加in; as much...as 这里缺少一个as--》d
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