[填空题]

Archaeological

Archaeological study covers an extremely long span of time and a great variety of subjects. The earliest subjects of archaeolgical study date from the origins of humanity. These include fossil remains believed to be of human ancestors who lived 3.5 million to 4.5 million years ago. The earliest archaeological sites include those in Ethiopia, Tanzania, Kenye; and elsewhere in East Africa. These sites contain evidence of the first appearance of bipedal(upright-walking),apelike early humans. (46) Some sites also contain evidence of the earliest use of simple tools. Asia about 1.8 million years ago, then into Europe about 900,000 years ago.
The first physically modern humans, Homo sapiens, appeared in tropical Africa between 200,000and 150,000 years ago dates determined by molecular biologists and archaeologists working together. Dozens of archaeological sites through tout Age(100,000 to 15,000 years ago). (47

[单项选择]　　　 Archaeological discoveries have led some scholars to believe that the first Mesopotamian 　　　 inventors of writing may have been a people the later Babylonians called Subarians. According to 　　　 tradition, they came from the north and moved into Uruk in the south. By about 3100B.C, They 　　　 Were apparently subjugated in southern Mesopotamia by the Sumerians, whose name became (5) 　synonymous with the region immediately north of the Persian Gulf, in the fertile lower valleys of 　　　 the Tigris and Euphrates. Here the Sumerians were already well established by the year 3000B.C. 　　　 They had invented bronze, an alloy that could be cast in molds, out of which they made tools and 　　　 weapons. They lived in cities, and they had begun to acquire and use capital. Perhaps most 　　　 important, the Sumerians adapted writing (probably from the Subarians) into a flexible tool of (10)　 communication. 　　　 Archacologists have known about the Sumerians for over 150 years. Archacolog
A. They were descendants of the Persians.
B. They were the first people to cultivate the valley of the Tigris.
C. They were accomplished musicians.
D. They had the beginnings of an economy.