問題詳情

四、閱讀測驗【請在下列各題中選出最適當的答案】第一篇：In the era before the arrival of the white settlers, Native Americans managed to survive and prosper without any of theinventions of more technologically advanced societies. In fact, some of their accomplishments almost defy explanation. Thenative people depended heavily on timber for their existence, but how was it that they could cut down trees without the aid of ironaxes – indeed, without any metal tools at all?Native Americans solve that problem as they did other problems that confronted them in their wilderness environment- byusing good old-fashioned American ingenuity. The hardest material available to the American Indians was stone, while the mostpowerful force they possessed was fire. By combing these two tools, they were able to fell trees quite efficiently.The American Indians made some stone hatches. These were sharpened in preparation for each timber harvest. For a harvest,they first selected the trees to be felled. Then they would build a fire to encircle the bottom of a tree. The flames would burn the trunkin a narrow circular ring near the bottom of the tree. The charred wood could be easily hacked away with a stone axe. When thefirst layer had been cut away, another layer was charred and hacked away, and this procedure was repeated until the tree toppled.Stone and fire proved to be adequate substitutes for metals, which Native Americans of this early time never knew existed.
41. What is the main idea of this passage?
(A) Native Americans relied on trees for their existence.
(B)Native Americans used great ingenuity to cut down trees.
(C)Native Americans knew how to build fires.
(D)Native Americans discovered iron.

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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