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12月22日GRE考试机经回顾

2018-12-25 15:58 小马过河 admin

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摘要:阅读部分 Passage 186 Growing grapes in greenhouses containing air enriched with carbon dioxide increases crop yields, an effect that is enhanced when the growing temperature is also raised several degrees. Although enclosed cultivation is impractical in vineyards, increases in yields from grape cultivation in the open can be expected because emissions from the burning of fossil fuels will almost certainly lead to an increase in the carbon dio

  阅读部分

  Passage 186

  Growing grapes in greenhouses containing air enriched with carbon dioxide increases crop yields, an effect that is enhanced when the growing temperature is also raised several degrees. Although enclosed cultivation is impractical in vineyards, increases in yields from grape cultivation in the open can be expected because emissions from the burning of fossil fuels will almost certainly lead to an increase in the carbon dioxide content of atmospheric air over the next century.

  ......

  Passage 163

  Cotton grass, which grows only in arctic regions, has been the only summertime source of protein available to caribou. Caribou that do not get adequate amounts of protein in the summer are unable to reproduce the following year. Rising average temperatures in arctic regions, however, are causing cotton grass to disappear. Therefore, if the warming trend continues, caribou are likely to become extinct.

  ......

  Passage 141

  As of late 1980s, neither theorists nor large-scale computer climate models could accurately predict whether cloud systems would help or hurt a warming globe. Some studies suggested that a four percent increase in stratocumulus clouds over the ocean could compensate for a doubling in atmospheric carbon dioxide, preventing a potentially disastrous planet-wide temperature increase. On the other hand, an increase in cirrus clouds could increase global warming.

  ......

  Passage 106

  Although vastly popular during its time, much nineteenth-century women’s fiction in the United States went unread by the twentieth-century educated elite, who were taught to ignore it as didactic. However, American literature has a tradition of didacticism going back to its Puritan roots, shifting over time from sermons and poetic transcripts into novels, which proved to be perfect vehicles for conveying social values.

  ......

  Passage 71

  The Fourteenth Amendment to the United States Constitution, ratified in 1868,prohibits state governments from denying citizens the “equal protection of the laws.” Although precisely what the framers of the amendment meant by this equal protection clause remains unclear, all interpreters agree that the framers’ immediate objective was to provide a constitutional warrant for the Civil Rights Act of 1866, which guaranteed the citizenship of all persons born in the United States and subject to United States jurisdiction.

  ......

  Passage 194

  Unlike herbivores and omnivores, predators have traditionally been thought not to balance nutrient intake because of the assumption that animal tissue as a food source varies little and is nutritionally balanced. But chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably. Greenstone suggested that predators may select food items according to their nutrient contents.

  ......

  填空部分

  8-1. Parker’s model of human reflects a _____ outlook, in stark contrast to thegenerally pessimistic analyses of her colleagues in the economics department.

  A. prescient

  B. circumspect

  C. technical

  D. magisterial

  E. sanguine

  25-3. Recent scholarship has questioned the(i)_____ of tropical forests around the world. Archaeologists have shown, forexample, that the largest contiguous tract of what was thought to be virginrain forest in the southern Amazon had been transformed into a culturalparkland before European contact, and many of the forest islands in WestAfrica’s savanna forest transition zone are (ii)_____ as well.

  A. diversityD. isolated

  B. naturalnessE. endangered

  C. sustainabilityF. anthropogenic

  29-10. Space is often referred to as thefinal frontier, as the only realm of which humankind has still to gainsubstantial understanding, yet the ocean is also another vast area about whichour knowledge is _____.

  A. erroneous

  B. confusing

  C.frustrating

  D. rudimentary

  E. delusive

  F. sketchy

  45-1. The maps in this volume are meant not asguides but as _____: they are designed to make the reader think anew about thecity.

  A. adornments

  B. references

  C.truisms

  D. provocations

  E. valedictions

  64-10. Beatified by the Catholic Church in 1765, Italiancleric Ludovico Sabbatini is _____ each year on the day of his death, June 11.

  A. pledged

  B. evoked

  C. deified

  D. venerated

  E. honored

  F. christened

  71-5. A minor criticism of the book, which is(i)_____ an understanding of the difficulty of doing direct research in HongKong’s, is that So relied on secondary sources to tell the story of Hong Kong’spolitical development, with previous histories of the period (ii)_____ hisresearch. Given So’s (iii)_____ many of the players in Hong Kong politics, itis surprising that he did not use interviews and other forms of direct researchto delve further into the motivations, strategies, and tactics of participants.

  A. attributable to   D. largely debunked by    G. deference to

  B. exacerbated by   E. obviating the need for   H. estrangement from

  C. tempered by       F. playing a large role in     I. proximity to

  79-5. To get funding and tenured positions,medical researchers have to get their work published in well-regarded journals,where rejection can climb above 90 percent. Not surprisingly, the studies thattend to make the grade are those that make (i)_____ claims. But while coming upwith such (ii)_____ claims is relatively easy, getting the data to bear themout is another matter. When studied rigorously, the great majority of theseclaims (iii)_____.

  A. well-supported   D. practical     G. yield contradictory evidence

  B. eye-catching      E. orthodox     H. require extensive analysis

  C. small-scale         F. striking        I. support conventional beliefs

  写作部分

  Issue 27,58,93,62

  Argument 48,52,58

 

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  也是人生另一种可能性的开启。

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