新东方网GRE频道在此和大家分享GRE官方指南中的阅读真题，希望对大家准备GRE阅读有所帮助。

　　OG-1

　　Passage 7

　　During the day in Lake Constance, the zooplankton D. hyalina departs for the depths where food is scarce and the water cold. D. galeata remains near the warm surface where food is abundant. Even though D. galeata grows and reproduces much faster, its population is often outnumbered by D. hyalina.

　　1. Which of the following, if true, would help resolve the apparent paradox presented above?

　　A. The number of species of zooplankton living at the bottom of the lake is twice that of species living at the surface.

　　B. Predators of zooplankton, such as whitefish and perch, live and feed near the surface of the lake during the day.

　　C. In order to make the most of scarce food resources, D. hyalina matures more slowly than D. galeata.

　　D. D. galeata clusters under vegetation during the hottest part of the day to avoid the Sun’s rays.

　　E. D. galeata produces twice as many offspring per individual in any given period of time as does D. hyalina.

点击查看答案

　　最新热文推荐：

　　2016年GRE备考特辑

　　2016年GRE真题解析

　　史上最全GRE资料整理

　　2016年GRE考试报名时间

　　2016年世界大学排名最新整理

　　更多关于GRE考试备考内容，请关注新东方网GRE频道，也可关注我们的微信平台(微信号：GRE-XDF)。

(责任编辑：马荟)