3月许多GRE考生将迎来新学期的开学季,而伴随着学业的开始大家的2018年GRE备考和考试也将进入正轨。那么考生如何才能在开学阶段新的学习任务安排繁重的情况下顺利进行GRE备考并在考试中收获理想成绩?下面小编就为大家带来小站GRE点题专家组精心整理的2018年3月4日GRE全新机经。下面是GRE阅读预测机经,赶紧来刷!
2018年3月4日GRE机经其他题型预测:作文/长阅读/逻辑/填空单空多空/等价/数学 请走这里
题目
短篇阅读
Immediately relevant to game theory are the sex ratios in certain parasitic wasp species that have a large excess of females. In these species, fertilized eggs develop into females and unfertilized eggs into males. A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized. By Fisher‘s genetic argument that the sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted, it should pay a female to produce equal numbers of sons and daughters. Hamilton, noting that the eggs develop within their host—the larva of another insect—and that the newly emerged adult wasps mate immediately and disperse, offered a remarkably cogent analysis. Since only one female usually lays eggs in a given larva, it would pay her to produce one male only, because this one male could fertilize all his sisters on emergence. Like Fisher, Hamilton looked for an evolutionarily stable strategy, but he went a step further in recognizing that he was looking for a strategy.
The author suggests that the work of Fisher and Hamilton was similar in that both scientists
A. conducted their research at approximately the same time
B. sought to manipulate the sex ratios of some of the animals they studied
C. sought an explanation of why certain sex ratios exist and remain stable
D. studied game theory, thereby providing important groundwork for the later development of strategy theory
E. studied reproduction in the same animal species
答案:C
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