英语听力：自然百科 神奇水世界 Water-5
时间：2019-01-22 作者：英语课 分类：自然百科2010年
英语课
What that circulation means to us human is that water is a moving target. We constantly have to seek it out in this endless cycle and intercept 1 it wherever and whenever we can. This quest depend on water has played a defining role in human history.
That led people to the one-stage of the water cycle that offers reliable fresh water - rivers. Across the planet, rivers cover a tiny proportion of the earth's surface, but for the first farmers they became magnets. But rivers did more than supply a steady source of water, they changed the very character of the civilizations that grew up along them, influencing everything from politics to social organization. The power of rivers to shape history is graphically 2 illustrated 3 by perhaps the greatest of all early civilizations - Ancient Egypt.
You might think you know the story, a mighty 4 civilization that built the pyramids under the autocratic rule of ruthless pharaohs, but if you want to understand what really made Egypt great, you have to leave the pyramids and the temples behind and come here to a small place that hardly anyone visits.
Here, at first glance, these look like the average, everyday 2,000-year-old steps, but this staircase is what made ancient Egypt kick. To get an idea of its true purpose, put out markings on the side wall, these grooves 5 are carefully carved into the marble, because that’s a beautifully simple measuring device. If to see what it was measuring, you have to pop around the corner.
It’s all wet! Hahaha. And this is it! The Nile River. That set of steps and markings is a Nile flowmeter. It measured the changing level of the river. Each year when it flooded, the maximum height that the waters came to would directly predict the yield of the crops, and with that, the profits of the farmers made.
vt.拦截，截住，截击
- His letter was intercepted by the Secret Service.他的信被特工处截获了。
- Gunmen intercepted him on his way to the airport.持枪歹徒在他去机场的路上截击了他。
adv.通过图表；生动地，轮廓分明地
- This data is shown graphically on the opposite page. 对页以图表显示这些数据。
- The data can be represented graphically in a line diagram. 这些数据可以用单线图表现出来。 来自《简明英汉词典》
adj.强有力的；巨大的
- A mighty force was about to break loose.一股巨大的力量即将迸发而出。
- The mighty iceberg came into view.巨大的冰山出现在眼前。