一、Verbal Reasoning(总题数:8,分数:100.0分)
Animal signals, such as the complex songs of birds, tend to be costly. A bird, by singing, may forfeit time that could otherwise be spent on other important behaviors such as foraging or resting. Singing may also advertise an individual's location to rivals or predators and impair the ability to detect their approach. Although these types of cost may be important, discussion ……此处隐藏65696个字…… winter pastures
答案: C
解析:
[考点] 细节的定位和理解 题型:排除题 这道题的问法是“哪个不是”,所以最好使用排除法,这道题的判断标准有两个:(1)必须是人类活动;(2)必须是high-frequency environmental processes,其中第一条不是很好判断,虽然最后一段给出了几个具体例子increased mobility, relocation of permanent settlements, changes in subsistence foods, and reliance on trade with other groups,但是它们是七个主要活动(seven major adaptive responses)的一部分,所以很难直接根据原文排除;第二条在第三段分别给出了高频和低频的例子,如果选项里是低频则可以直接排除。所有选项中C选项里的groundwater levels可以明确确定为低频的事件,答案是C。这种题,大家思考一下,最好的方法是什么?举个例子,文章里有两组学生,一组是男的:A和B,另外一组是女的:a,b,c...。题目是:选一个不是女的选项。选项是:A,a,b,c…。这个时候,最好的方法肯定是选是男的即可,马上选A,而不是从原文里一一找女生,然后再排除。
2023年美国研究生入学考试题库(GRE)真题及答案精选5
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