在同学们快要托福考试的时候对于托福考试的内容是不是还是没有把握，那么托福机经来助阵，帮助大家缩小备考内容，划出重点，让大家的考前突击复习更加有效果。和出国留学网小编一起来看看2018年5月6日托福阅读机经。
考古类
Environmental Impact of the Anasazi
The Collapse of the Mays
The Chaco Phenomenon
科学类
The Birth of Photography
Early American Printing Industry
农业类
Agricultural Society in Eighteenth- Century British America
Water Management in Early Agriculture
社会类
Population Growth in Nineteenth-Century Europe
Hunting and the Setting of Inner Eurasia
生物类
Extinctions at the End of the Cretaceous
The Cambrian Explosion
The Extinction of the Dinosaurs
How Animals in Rain Forests Make Themselves Heard
Sociality in Animals
Dinosaurs and Parental Care
Habitat Selection
Temperature Regulation in Marine Organisms
Cell Theory
Poikilotherms
Forest Succession
The Role of Diapause
The Identification of the Genetic Material
How Plants and Animals Arrived in the Hawaiian Islands
Constraints on Natural Selection
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