四、信息还原
阅读短文，从方框中选出能填入空格处的最佳选项，有一个多余选项。
How much do you know about terraces (梯田) in China? Imagine mountains with silver water, shining in spring. Mountains turn green with growing rice in summer. During autumn, mountains turn gold, and in winter they are covered with white snow.
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The local people built these terraces. It was hard work when they started.
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Now, reaching as far as we can see, the terraces cover tall mountains.
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First, building the terraces means having more fields to grow rice. Second, the terraces catch the rainwater and stop the soil from being washed away.
People have worked well with nature to make these terraces. During the rainy season, rainwater moves down the mountains along some waterways and into the terraces.
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This causes rain to fall down onto the mountain terraces once again.
Though modern technology (科技) could help grow more crops, these terraces still mean a lot to the local people.
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Today, the Longji Rice Terraces receive high praise for being a great wonder created by people and nature working together.
A. For them, traditions hold great value.
B. It is quite useless for the people to work there.
C. The sun heats the water and turns it into water vapour (水蒸气).
D. These are the amazing colours of the Longji Rice Terraces.
E. There are reasons why people turn the mountains into terraces.
F. Building these terraces took them hundreds of years.
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