GRE阅读机经是综合近几个月GRE阅读考试中题目的出题频率进行汇总，形成的GRE阅读预测机经，如果考生可以合理的利用这些机经进行考前的复习，那么在一定程度上可以使考生更有信心的参加今后的考试。2016年5月8号GRE阅读预测机经，一起来看看吧!
2016年5月8号GRE阅读-短阅读预测。
Although passenger pigeons, now extinct, were abundant in eighteenth-and nineteenth-century America, archaeological studies at twelfth-century Cahokian sites in the present-day United States examined household food trash and found that traces of passenger pigeon were quite rare. Given that the sites were close to a huge passenger pigeon roost documented by John James Audubon in the nineteenth century and that Cahokians consumed almost every other animal protein source available, the archaeologist conducting the studies concluded the passenger pigeon population had once been very limited before increasing dramatically in post-Columbian America. Other archaeologists have criticizedthose conclusions on the grounds that passenger pigeon bones would not belikely to be preserved. But all the archaeological projects found plenty ofbird bones--and even some tiny bones from fish.
The author of the passage mentions "tiny bones from fish" primarily in order to
A. Explain why traces of passenger pigeon are rare at Cahokian sites
B. Support a claim about the wide variety of animal proteins in the Cahokian diet
C. Provide evidence that confirms a theory about the extinction of the passenger pigeon
D. Cast doubt on the conclusion reached by the archaeologists who conducted the studies discussed inthe passage
E. Counter an objection to an interpretation of the data obtained from Cahokian sites
答案解析：
答案：C
解析：
定位至文中最后一行，句子跟在转折连词But后，But all the archaeological projects found plenty of bird bones--andeven some tiny bones from fish，与之前提及的passenger pigeonbones would not be likely to be preserved意思相反。
2016年5月8号GRE阅读-长阅读预测。
In 1995 the Galileo spacecraft captured data about Jupiter's atmosphere--namely, the absence of most of the predicted atmosphericwater--that challenged prevailing theories about Jupiter's structure. The unexpectedness of this finding fits a larger pattern in which theories about planetary composition and dynamics have failed to predict the realities discovered through space exploration. Instead of "normal planets"whose composition could be predicted by theory, the planets populating our solar system are unique individuals whose chemical and tectonic identities were created through numerous contingent events. One implication of this is that although the universe undoubtedly holds other planetary systems, the duplication of the sequence that produced our solar system and the developmentof life on Earth is highly unlikely.
Recently planetary scientists have suggested that the external preconditions for the development of Earth's biosphere probablyincluded four paramount contingencies. First, a climate conducive to life onEarth depends upon the extraordinarily narrow orbital parameters that define a continuously habitable zone where water can exist in a liquid state. If Earth'sorbit were only 5 percent smaller than it is, temperatures during the earlystages of Earth's history would have been high enough to vaporize the oceans. If the Earth-Sun distance were as little as 1 percent larger, run away glaciation on Earth about 2 billion years ago would have caused the oceans to freeze and remain frozen to this day.
Second, Jupiter's enormous mass prevents most Sun-boundcomets from penetrating the inner solar system. It has been estimated that without this shield, Earth would have experienced bombardment by comet-sizedimpactors a thousand times more frequently than has actually been recordedduring geological time. Even if Earth's surface were not actually sterilized bythis bombardment, it is unlikely that any but the most primitive life-formscould have survived. This suggests that only planetary systems containing bothterrestrial planets like Earth and gas giants like Jupiter might be capable of sustaining complex life-forms.
Third, the gravitational shield of the giant outer planets, while highly efficient, must occasionally fail to protect Earth. Paradoxically,while the temperatures required for liquid water exist only in the inner solar system, the key building blocks of life, including water itself, occur primarily beyond the asteroid belt. Thus the evolution of life has depended ona frequency of cometary impacts sufficient to convey water, as well as carbonand nitrogen, from these distant regions of the solar system to Earth while stopping short of an impact magnitude that would destroy the atmosphere andoceans.
Finally, Earth's unique and massive satellite, the Moon, plays a crucial role in stabilizing the obliquity of Earth's rotational axis.This obliquity creates the terrestrial seasonality so important to the evolution and diversity of life. Mars, in contrast, has wildly oscillating tiltand chaotic seasonality, while Venus, rotating slowly backward, has virtually noseasonality at all.
1.The passage is primarily concerned with
A. Enumerating conditions that may have been necessary for a particular development
B. Outlining the conditions under which scientists may be able to predict certain events
C. Explaining how aparticular finding affected scientists ' understanding of a phenomenon
D. Suggesting reasonswhy a particular outcome was more likely to occur than other possible outcomes
E. Assessing therelative significance of factors that contributed to a particular occurrence
2. It canbe inferred from the passage that the "planetary scientists"would be most likely to agree with which of the following statements concerningthe development of complex life forms on Earth?
A. It might have occurred earlier in Earth's history if cometary impacts had been less frequent than they were.
B. It could haveoccurred if Earth's orbit were 1 percent larger than it is but not if Earth'sorbit were 5 percent smaller.
C. It probably follows a pattern common on other terrestrial planets that occupy planetary systems containing gas giants.
D. Its dependence onthe effect that Jupiter's gravitational shield has on Earth was difficult to recognize prior to 1995.
E. It has beencontingent on conditions elsewhere in Earth's solar system as well as onconditions on Earth itself.
3.The author of the passage most likely mentions Mars' "oscillating tilt"primarily in order to
A. Provide evidence for a proposition about the potential effects of cometary impacts
B. Emphasize the absence from our solar system of "normal planets"
C. Contrast the rotation alaxis of Mars with that of Venus
D. Characterize the role of other planets in the solar system in earth's development
E. Emphasize theimportance of the Moon to the development of life on Earth
答案解析：
答案：C E C
解析：
1.根据文章第一段内容，可知推出了一个finding，后面都是具体介绍这个发现的，所以围绕的中心是C。
2.题干问planetary scientists 最有可能同意哪个观点，而且是与the development of complex life forms on Earth有关，定位至第二段开头处开始阅读，运用排除法得出答案。
3.题干问为何提及Mars会震荡倾斜，定位至最后一段会发现后文提及了Venus与Mars是相反的，因此答案选C。
以上就是2016年5月8号GRE阅读预测机经的分析，考生可以对以上题目进行练习，准备个提纲，迎战GRE阅读考试。
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