为了帮助大家高效备考，小编为大家带来考试例题解析3，希望对大家GRE备考有所帮助。
1. Therefore表示对上文的承接，因为they才进入人体，因而在人体中的演变时间较短。
2. 选择与自主判读已知的词汇填空：
[1]. ample：(富饶的)generous or more than adequate in size, scope, or capacity
[2]. insufficient：(不足的)not sufficient : INADEQUATE; especially : lacking adequate power, capacity, or competence
[3]. adequate：(充足的)sufficient for a specific requirement
(二) Yetthere is no reliable evidencethat the most harmfulPlasmodium specieshas been in humans for a shorter timethan less harmfulspecies.
1. Yet表示对上文的否定，两句话是反义关系，但是由于no reliable evidence作为否定词存在对整个句子再次进行取反，因而本句话中that引导的从句中所述内容即为前一句话中的同义转述。
2. 而由于存在时间对比，存在时间较久的与存在时间短暂的物种之间的状态相反，即存在较久的物种毒性差。
(三) Wills argues that certain malarial parasitesare especially (i) ______becausethey have more recentlyentered humans thanother speciesand thereforehave had (ii) ______timeto evolve toward (iii) ______. Yetthere is no reliable evidencethat the most harmfulPlasmodium specieshas been in humans for a shorter timethan less harmfulspecies.

1. 带回一句看看第二句中与之对应部分。
2. 在人体中存在时间短的物种毒性较强，因而没有时间进化到毒性较弱的品种，对于blank3，应该填入less harmful的同义词。
3. 选择与自主判读已知的词汇填空：
[1]. virulence：(毒害)the quality or state of being virulent
[2]. benignity：(良性的)of a mild type or character that does not threaten health or life [3]. variability：(多变的)able or apt to vary : subject to variation or changes