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TOEFL Directory > TOEFL writing > answers for TOEFL reading unit two passage 3
answers for TOEFL reading unit two passage 3
23.D. "Much of our knowledge of the earliest hunters and gatherers is found by excavating abandoned living sites..."
24. B. "...for protection from predators and the weather, for availability of abundant water, and for access to herds of game and vegetable foods. "
25.sites=locations
26.they=early human
27. A
28. A. "In Olduvai, the gently rising waters of a prehistoric lake slowly covered the bone caches and preserved them for posterity, with the tools lying where they had fallen. "
29. A. "Their tools are found in profusion in the gravel of riverbeds that were subsequently jumbled and re-sorted by floodwater, leaving a confused mass of artifacts, rather than undisturbed floors of former dwellings for archaeologists to uncover.".
30.jumbled=confused
31.B
32.C. "Caves that were occupied more than half a million years ago were reoccupied again and again as people returned to the locations they preferred. "
33.D. " These sites, known as "tells,?require large excavations and extensive earthmoving ..."
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