GRE写作：必背15句长难句

 　　1. That sex ratio will be favored which maximizes the descendants an individual will have and hence the number of gene 1 copies transmitted.

　　2. Hardy’s weakness derived 2 from his apparent inability to control the comings and goings of these divergent impulses and from his unwillingness 3 to cultivate and sustain the energetic and risky 4 ones.
　　3. Virginia Woolf’s provocative 5 statement about her intentions in writing Mrs. Dalloway has regularly been ignored by the critics, since it highlights an aspect of her literary interests very different from the traditional picture of the “poetic” novelist concerned with examining states of reverie and vision and with following the intricate pathways of individual consciousness.
　　4. As she put in The Common Readers, “It is safe to say that not a single law has been framed or one stone set upon another because of anything Chaucer said or wrote; and yet, as we read him, we are absorbing morality at every pore.
　　5. With the conclusion of a burst of activity, the lactic 6 acid level is high in the body fluids, leaving the large animal vulnerable to attack until the acid is recovered, via oxidative metabolism 7, by the liver into glucose 8, which is then sent (in part) back into the muscles for glycogen resynthesis.
　　6. Although Gutman admits that forced separation by sale was frequent, he shows that the slaves’ preference, revealed most clearly on plantations 9 where sale was infrequent, was very much for stable monogamy.
　　7. Gutman argues convincingly that the stability of the black family encouraged the transmission of–and so was crucial in sustaining–the Black heritage of folklore 10, music, and religious expression from one generation to another, a heritage that slaves were continuingly fashioning out of their African and American experience.
　　8. This preference for exogamy, Gutman suggests, may have derived from West African rules governing marriage, which, though they differed from one tribal 11 group to another, all involved some kind of prohibition 13 against unions with close kin 12.
　　9. His thesis works relatively 14 well when applied 15 to discrimination against Blacks in the United States, but his definition of racial prejudice as “racial—based negative prejudgments against a group general accepted as a race in any given region of ethnic 16 competition,” can be also including hostility 17 toward such ethnic groups as the Chinese in California and the Jews in medieval Europe.
　　10. Such variations in shape, chemistry, conduction speed, excitation threshold, and the like as had been demonstrated in nerve cells remained negligible in significance for any possible correlation 18 with the manifold dimensions of mental experience.
　　11. It was possible to demonstrate by other methods refined structural 19 difference among neuron types; however, proof was lacking that the quality of the impulse or its condition was influenced by these differences, which seemed instead to influence the developmental patterning of the neural 20 circuits.
　　12. Although qualitative 21 variance 22 among nerve energies was never rigidly 23 disproved, the doctrine 24 was generally abandoned in favor of the opposing view, namely, that nerve impulses are essentially 25 homogeneous in quality and are transmitted as “common currency” throughout the nervous system.
　　13. Other experiment revealed slight variations in the size, number, arrangement, and interconnection of the nerve cells, but as far as psycho-neural correlations 26 was concerned, the obvious similarities of these sensory 27 fields to each other seemed much more remarkable 28 than any of the minute differences.
　　14. Although some experiments show that, as an object becomes more familiar, its internal representation becomes more holistic 29 and the recognition process correspondingly more parallel, the weight of the evidence seems to support the serial 30 hypothesis, at least for objects that are not notably 31 simple and familiar.
　　15. In large part as a consequence of the feminist 32 movement, historians have focused a great deal of attention in recent years on determining more accurately 33 the status of women in various periods.
　　获得GRE写作高分需要我们长期坚持不懈的努力，在平时除了进行动手写作练习之外，还需要多借鉴一些优秀的范文以及句子，仔细分析其逻辑结构和写作手法，并转化为自己的知识。