Two- and three-dimensional maps are helpful tools in planning excavations, illustrating how sites look, and presenting the results of archaeological research.

出自-2014年考研阅读原文

How do archaeologists know where to find what they are looking for when there is nothing visible on the surface of the ground? Typically, they survey and sample ( ' , make test excavations on) large areas of terrain to determine where excavation will yield useful information.

出自-2014年考研阅读原文

Typically, they survey and sample large areas of terrain to determine where excavation will yield useful information.

2014年考研真题（英语一）阅读理解 Section Ⅱ