2017年9月17日托福阅读机经预测小范围版

2017年9月17日托福阅读机经预测小范围版

　　地质类

　　Early Theories of Continental Drift

　　Attempts at Determining Earth’s Age

　　How Soil is Formed

　　Earth’s Energy Cycle

　　Thermal Stratification

　　环境类

　　The Climate of Japan

　　The Role of the Ocean in Controlling Climate

　　经济类

　　Effects of the Commercial Revolution

　　Seventeenth-Century European Economic Growth

　　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

　　天文类

　　Surface Fluids on Venus and Earth

　　Origin of the Solar System

　　Comets

　　文化艺术类

　　The Origins of Writing

　　Live Performance

　　The Origins of Theater

　　The Development of Printing