C
A Happy Surprise Under Solar Panels
In Talatan, Qinghai, the land used to be covered with endless yellow sand. When the wind blew, sand filled the sky, making it impossible for anything to grow. Then a group of engineers came up with “magic panels”—solar photovoltaic panels(太阳能光伏板), hoping to use sunlight to generate electricity(发电) in the desert.

After months of hard work to build the power station(电站), the engineers were surprised to find green grass growing under the panels a few months later. It grew faster and faster, which worried them a lot. “If the grass blocks(遮住) the sunlight, the panels won’t generate electricity,”a young engineer said. “However, it’s difficult to clean up the grass. Cutting the grass will cost a lot of money.”
Just then, they heard a soft sigh. It was Li Qixiang, a local herder(牧民), walking slowly with his twenty thin sheep. He had to walk dozens of miles every day to find dry grass for his sheep, and he often said,“If only there was a green grassland for my sheep!”
An older engineer suddenly had an idea. He smiled and asked Li Qixiang,“My friend, are your sheep short of grass? We have plenty under our panels and need someone to clean it up!”Li Qixiang’s eyes lit up. They made a perfect agreement: let his sheep eat the grass under the panels. That was a win-win situation.
Since then, Li Qixiang’s sheep have been grazing there every day, cleaning up the grass completely. The engineers saved lots of money, and Li Qixiang’s sheep increased from over 20 to more than 2,000. What’s more, sheep droppings(羊粪) became natural fertilizer(肥料), making the grass grow better. Gradually, Talatan was covered with green, sandstorms became fewer, and it turned into a real “desert oasis”(沙漠绿洲).
根据短文内容,选择正确的答案。
()36. What was Talatan like in the past?
A. It was a green grassland.
B. It had many clean rivers.
C. It was good for growing crops.
D. It was covered with desert.
()37. Why did the engineers worry about the grass under the panels?
A. Because the grass made the panels dirty.
B. Because the grass can stop sunlight from coming in.
C. Because the grass was bad for the sheep.
D. Because the grass took too much water.
()38. What problem did Li Qixiang have at first?
A. He had no money to buy sheep.
B. He couldn’t find the way to the power station.
C. His sheep didn’t have enough grass to eat.
D. He didn’t know how to clean the grass.
()39. How did the sheep help the power station?
A. They cleaned up the grass for free.
B. They made the panels run faster.
C. They gave money to the engineers.
D. They stopped the wind from blowing.
()40. What is the main idea of the passage?
A. How a herder became rich by keeping sheep.
B. Why solar panels are very expensive.
C. A good way that connects green energy with life and environment.
D. How to grow grass well in a big desert.
D

36.D 37.B 38.C 39.A 40.C

36. 细节理解题。根据原文第一段第一句"In Talatan, Qinghai, the land used to be covered with endless yellow sand."可知，过去塔拉滩被无尽的黄沙覆盖，也就是遍布沙漠，A、B、C选项均不符合原文描述，故选D。
37. 细节理解题。根据原文第二段年轻工程师的表述"If the grass blocks the sunlight, the panels won't generate electricity"可知，工程师担心草会遮挡住阳光，影响光伏板发电，对应B选项描述，故选B。
38. 细节理解题。根据原文第三段"He had to walk dozens of miles every day to find dry grass for his sheep, and he often said,'If only there was a green grassland for my sheep!'"可知，一开始李启祥的问题是他的羊没有足够的草吃，故选C。
39. 细节理解题。根据原文第四、五段内容，工程师和牧民达成协议，让羊吃掉光伏板下的草，不需要额外花钱清理杂草，工程师省下了大笔除草成本，也就是羊免费帮电站清理了杂草，A选项符合描述，其余选项均无原文依据，故选A。
40. 主旨大意题。本文讲述了在青海塔拉滩的沙漠光伏电站，工程师巧妙结合当地牧民牧羊的需求，既解决了光伏板下杂草遮挡阳光的问题，帮助牧民增收，还借助羊粪改良土壤，最终把沙漠变成绿洲，是将绿色清洁能源、民生生活和生态保护结合起来的双赢好方法，C选项最能概括全文主旨，故选C。