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三、阅读理解
The Colorado River supplies water to more than 36 million people in the south-western part of the USA and allows cities like Los Angeles to develop. However, it is hard to meet the region's need for water now.
The river once travelled from the Rocky Mountains to the Gulf of California. Now, dams control the river's water for human use. As a result, the delta(三角洲) at the river's mouth becomes dry and poor.
Not long ago, engineers opened the Morelos Dam to free a temporary burst of water. It allowed the river to reach the sea for the first time in 16 years. It also helped the river's delta come alive.
Several man-made lakes form because of the dams. "These lakes are like banks. They provide a place to save up water for not-so-rainy days—like right now," said an engineer named Taylor.
In wetter times, the river usually finished its journey to the sea. In drier times, however, spring floods brought life back to the delta for a short time. Such difference shows that a little water could make the river flow smoothly.
"Just add water and you can get something amazing," said another engineer. "In this way, we show how to manage rivers sustainably(可持续地) for both people and nature. Although a lot of rivers have similar problems, it's possible to restore them. If we can do it in the Colorado River Delta, we can do it almost anywhere."
(
A. The Colorado River can't reach the ocean.
B. The Gulf of California is flooding.
C. The Colorado River Delta is drying.
D. The water in America will run out.
(
A. Lasting for a short time. B. Lasting for a long time.
C. Plenty of. D. Lasting forever.
(
A. lakes can bring us a lot of money
B. we can borrow money from banks to protect those lakes
C. rivers are as important as banks in our life
D. lakes store water in the way banks store money
(
A. teamwork
B. studying papers
C. experience they learnt from other countries
D. their study of the difference between wetter and drier times
The Colorado River supplies water to more than 36 million people in the south-western part of the USA and allows cities like Los Angeles to develop. However, it is hard to meet the region's need for water now.
The river once travelled from the Rocky Mountains to the Gulf of California. Now, dams control the river's water for human use. As a result, the delta(三角洲) at the river's mouth becomes dry and poor.
Not long ago, engineers opened the Morelos Dam to free a temporary burst of water. It allowed the river to reach the sea for the first time in 16 years. It also helped the river's delta come alive.
Several man-made lakes form because of the dams. "These lakes are like banks. They provide a place to save up water for not-so-rainy days—like right now," said an engineer named Taylor.
In wetter times, the river usually finished its journey to the sea. In drier times, however, spring floods brought life back to the delta for a short time. Such difference shows that a little water could make the river flow smoothly.
"Just add water and you can get something amazing," said another engineer. "In this way, we show how to manage rivers sustainably(可持续地) for both people and nature. Although a lot of rivers have similar problems, it's possible to restore them. If we can do it in the Colorado River Delta, we can do it almost anywhere."
(
C
) 1. What can we learn from the first two paragraphs?A. The Colorado River can't reach the ocean.
B. The Gulf of California is flooding.
C. The Colorado River Delta is drying.
D. The water in America will run out.
(
A
) 2. What does the underlined word "temporary" in paragraph 3 mean?A. Lasting for a short time. B. Lasting for a long time.
C. Plenty of. D. Lasting forever.
(
D
) 3. Taylor used the word "banks" in paragraph 4 to show that ______.A. lakes can bring us a lot of money
B. we can borrow money from banks to protect those lakes
C. rivers are as important as banks in our life
D. lakes store water in the way banks store money
(
D
) 4. Scientists got the idea of adding a little water through ______.A. teamwork
B. studying papers
C. experience they learnt from other countries
D. their study of the difference between wetter and drier times
答案
【解析】：
这是一道英语阅读理解题，主要考查学生对文章细节的理解和推理能力。题目给出了一个关于科罗拉多河及其三角洲的阅读材料，并附带了四个问题。我们需要根据文章的内容，逐一分析每个问题的答案。
1. 第一题是细节理解题，需要从文章的前两段中获取信息。文章提到科罗拉多河现在难以满足该地区对水的需求，大坝控制了河流的水供人类使用，导致河口三角洲变得干燥贫瘠。因此，可以推断出科罗拉多河三角洲正在变干。
2. 第二题是词义猜测题，需要根据上下文推断“temporary”的含义。文章第三段提到工程师们打开了Morelos大坝，释放了一股临时的水流，这是16年来首次让河流到达海洋。根据上下文，“temporary”应表示“短暂的，临时的”。
3. 第三题是推理判断题，需要根据文章第四段的内容推断Taylor使用“banks”这个词的用意。Taylor说：“这些湖泊就像银行。它们提供了一个储存水的地方，以备不时之需——就像现在这样。”因此，可以推断出湖泊储存水的方式就像银行储存钱一样。
4. 第四题是细节理解题，需要从文章中找出科学家们是如何想到通过加一点水来解决问题的。文章第五段提到，在湿润时期，河流通常能完成其入海的旅程；而在干燥时期，春季洪水则短暂地为三角洲带来了生机。这种差异表明，少量的水就能使河流顺畅流动。因此，科学家们是通过研究湿润和干燥时期的差异得到这个想法的。
【答案】：
1. C
2. A
3. D
4. D
这是一道英语阅读理解题，主要考查学生对文章细节的理解和推理能力。题目给出了一个关于科罗拉多河及其三角洲的阅读材料，并附带了四个问题。我们需要根据文章的内容，逐一分析每个问题的答案。
1. 第一题是细节理解题，需要从文章的前两段中获取信息。文章提到科罗拉多河现在难以满足该地区对水的需求，大坝控制了河流的水供人类使用，导致河口三角洲变得干燥贫瘠。因此，可以推断出科罗拉多河三角洲正在变干。
2. 第二题是词义猜测题，需要根据上下文推断“temporary”的含义。文章第三段提到工程师们打开了Morelos大坝，释放了一股临时的水流，这是16年来首次让河流到达海洋。根据上下文，“temporary”应表示“短暂的，临时的”。
3. 第三题是推理判断题，需要根据文章第四段的内容推断Taylor使用“banks”这个词的用意。Taylor说：“这些湖泊就像银行。它们提供了一个储存水的地方，以备不时之需——就像现在这样。”因此，可以推断出湖泊储存水的方式就像银行储存钱一样。
4. 第四题是细节理解题，需要从文章中找出科学家们是如何想到通过加一点水来解决问题的。文章第五段提到，在湿润时期，河流通常能完成其入海的旅程；而在干燥时期，春季洪水则短暂地为三角洲带来了生机。这种差异表明，少量的水就能使河流顺畅流动。因此，科学家们是通过研究湿润和干燥时期的差异得到这个想法的。
【答案】：
1. C
2. A
3. D
4. D
