TPO (TOEFL Practice Online) 是美国教育考试服务中心(Educational Testing Service，简称ETS)专为参加
1. 阅读要点概括
Main point: There are three competing theories trying to determine how “great houses” were used.
Sub point 1: The Chaco structures were purely residential, with each housing hundreds of people.
Sub point 2: The Chaco structures were used to store food supplies.
Sub point 3: Houses were used as ceremonial centers.
2. 听力要点概括
Point 1: The inside of the great houses casts serious doubt on the idea that many people lived there.
Point 2: Excavations of the great houses have not uncovered many traces of maize or maize containers.
Point 3: It contains lots of other materials besides broken pots, stuff you wouldn’t expect from ceremonies.
TPO逐题精讲”能有效帮助您查漏补缺，完美备考。
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