题目内容
19.No one is sure how the ancient Egyptians built the pyramids(金字塔) near Cairo.But a new study suggests long-ago builders could have tied wooden poles to the stones and rolled them across the sand,the scientists say."Strictly speaking,I think what they're suggesting is possible,"physicist Daniel Bonn said.
People have long been puzzled over how the Egyptians moved such huge rocks to the pyramid site from about one kilometer away.And there's no clear answer.
The most popular view is that Egyptian workers slid the blocks(石块) along smooth paths.Many scientists suspect workers first would have put the blocks on sleds(滑板).Then they would have dragged them along paths.To make the work easier,workers may have lubricated(润滑) the paths either with wet clay or with the fat from cattle.Bonn has now tested this idea by building small sleds and dragging heavy objects over sand.
Evidence(证据) from the sand supports this idea.Researchers found small amounts of fat,as well as a large amount of stone and the remains of paths.
However,physicist Joseph West think there might have been a simpler way,who led the new study.West said,"I was inspired while watching a television program:Why don't they just try rolling the things?A square (方形) could be turned into a rough sort of wheel by tying wooden poles to its sides.That should make a block of stone easier to roll than a square".
So he tried it.
He and his students tied some poles to each of four sides of a 30-kilogram stone block.That action turned the block into somewhat a wheel.The researchers found they could easily roll the block along different kinds of paths.They calculated that rolling the block required about as much force as moving it along a slippery(滑的)path.
West thinks rolling has clear advantages over sliding.At least,workers wouldn't have needed to carry cattle fat or water to smooth the paths.
25.It's widely believed that the stone blocks were moved to the pyramid site byC.
A.rolling them on roads
B.pushing them over the sand
C.sliding them on smooth paths
D.dragging them on some poles
26.What does the underlined word"it"in Paragraph 7refer to?A
A.Rolling the blocks with poles tied.
B.Rolling the blocks on wooden wheels.
C.Rolling poles to move the blocks.
D.rolling the blocks with fat.
27.Why is rolling better than sliding according to West?D
A.Because more force is needed for sliding.
B.Because rolling work can be done by fewer cattle.
C.Because sliding on smooth road is more dangerous.
D.Because less preparation on path is needed for rolling.
28.What is the text mainly about?D
A.An experiment on ways of moving blocks to the pyramid site.
B.An application of the method of moving blocks to the pyramid site.
C.An argument about how ancient Egyptians built pyramids
D.Views about the ways of moving blocks to the pyramid site.
分析 文章主要讲述了一种新的把石块移动到金字塔所在地的方法.
解答 25. C 细节理解题.根据第四段中的"The most popular view is that Egyptian workers slid the blocks along smooth paths.Many scientists suspect workers first would have put the blocks on sleds (滑板).",可知选C.
26. A 词义猜测题."it"为代词,因而应该指代上文;根据上一段内容,可知"it"指代"把杆绑在石块上,然后滚动石块".故选A.
27. D 细节理解题.根据最后一句"workers wouldn't have needed to carry cattle fat or water to smooth the paths.",可知,滚动石块不需做光滑路面的准备工作.故选D.
28. D 主旨大意题.根据第一段中的"a new study suggests long-ago builders could have tied wooden poles to the stones and rolled them across the sand,the scientists say."及文章内容可知,文章主要讲述了一种新的把石块移动到金字塔所在地的方法.故选D.
点评 本文是一个人物故事类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
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