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. Archacologists working at
Nineveh in northern Mesopotamia in the mid-nineteenth century found many inscribed clay tablets.
Some they could decipher because the language was a Semitic one (Akkadian), on which scholars
had already been working for a generation. But other tablets were inscribed in another language
(15) that was not Semitic and previously unknown. Because these inscriptions mad reference to the
king of Summer and Akkad, a scholar suggested that the mew language be called Sumerian.
But it was not until the 1890's that archaeologists excavating in city-states well to the south of
Nieveh found many thousands of tablets inscribed in Sumerian only. Because the Akkadians
thought of Sumerian as a classical language (as ancient Greek and Latin are considered today),
(20) they taught it to educated persons and they inscribed vocabulary, translation exercised, and other
study aids on tablets. Working from known Akkadian to previously unknown Sumerian, scholars
since the 1890's have learned how to read the Sumerian language moderately well. Vast quantities
of tablets in Sumerian have been unearthed during the intervening years from numerous sites.
According to the passage, the inventors of written language in Mesopotamia were probably the
A.Babylonians
B.Subarians
C.Akkadians
D.Sumerians
第3题
与核糖体蛋白相比,rRNA仅仅作为核糖体的结构骨架,在蛋白质合成中没有什么直接的作用。( )
第7题
真核细胞中rDNA编码的rRNA包括()。
A.5S rRNA、5.8S rRNA、18S rRNA
B.18S rRNA、5S rRNA、28S rRNA
C.5S rRNA、5.8S rRNA、28S rRNA
D.18S rRNA、5.8S rRNA、28S rRNA
E.28S rRNA、5S rRNA、16S rRNA
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