托福阅读文章分类本分类为四大类：自然科学、生物科学、社会科学、其他学科自然科学包括：地质学、天文学生物科学：植物学、动物学、生态环境学社会科学：艺术、历史考古学、心理生理学、社会学自然科学一、地质学冰川类1.OG：Green Icebergs 2.TPO 15 ：Glacier Formation 3.TPO 19 ：Discovering the Ice Ages 地质类1.OG：Desert Formation 2.OG：Geology and Landscape 3.TPO 01 ：Groundwater 4.TPO 03 ：Depletion of the Ogallala Aquifer 5.TPO 07 ：The Geologic History of the Mediterranean 6.TPO 12 ：Water in the Desert 7.TPO 20 ：Fossil Preservation 8.TPO 21 ：Geothermal Energy 9.TPO 24 ：Lake Water 10. TPO 27: The Formation of Volcanic Islands 11. TPO 29: The History of Waterpower 二、天文学火星类1.TPO 08 ：Running Water on Mars 2.TPO 25 ：The Surface of Mars 其他行星类1.TPO 16 ：Planets in Our Solar System 2.TPO 22 ：The Allende Meteorite 生物科学一、植物学1. Sample：Opportunity and Competitors 2. TPO 01: Timberline Vegetation on Mountains 3.TPO 05 ：Minerals and Plants 4.TPO 09 ：The Arrival of Plant Life in Hawaii 5.TPO 25 ：The Evolutionary Origin of Plants 6.TPO 22 ：Spartina 7. TPO 29: Competition 二、动物学动物特点1.OG：Swimming Machines 2.OG：Feeding Habits of East African Herbivores 3.TPO04：Deer Population of the Puget Sound 4.TPO 13 ：Biological Clock 5.TPO 15 ：A Warm-blooded Turtle 6.TPO 17 ：Symbiotic Relationship 7.TPO27: Buck Rubs and Buck Scrapes 8.TPO27: Predator-Prey Cycle 9.TPO 30: Role of Play in Development 10.TPO 30: The Pace of Evolutionary Change 动物变化1.Sample ：Meteorite Impact and Dinosaur Extinction 2.TPO 05 ：The Cambrian Explosion 3.TPO 08 ：Extinction of The Dinosaurs 4.TPO 15 ：Mass Extinctions 动物行为1.TPO 02 ：The Origins of Cetaceans 2. TPO 11 ： Orientation and Navigation 3.TPO 11 ：Begging by Nestlings 4.TPO 17 ：Animal Signals...
