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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 D
.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 D
.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
1. C 2. A 3. D 4. D
解析
【分析】
本题为英语阅读理解题，包含细节理解、词义猜测、推理判断三类题型。解题思路为：1. 针对第1题，定位前两段原文，对比选项排除错误答案；2. 针对第2题，结合第三段语境（16年来首次到海）猜测划线词含义；3. 针对第3题，定位Taylor的表述，分析“banks”的比喻义；4. 针对第4题，定位第五段关于干湿时期差异的内容，找到加少量水的依据。
【解析】
1. 细节理解题：定位前两段，第二段末句提到“the delta at the river's mouth becomes dry and poor”，对应选项C；A选项“无法到达海洋”与第三段“for the first time in 16 years”矛盾，B、D原文未提及，故选C。
2. 词义猜测题：第三段提到“it allowed the river to reach the sea for the first time in 16 years”，说明此次放水是短期的，“temporary”意为“暂时的”，对应选项A。
3. 推理判断题：第四段Taylor称“These lakes are like banks. They provide a place to save up water”，将湖泊比作银行，体现其存水功能，对应选项D；A、B、C均偏离比喻义，故选D。
4. 细节理解题：第五段指出“Such difference shows that a little water could make the river flow smoothly”，即通过研究干湿时期的差异得到加少量水的思路，对应选项D。
【答案】
1. C 2. A 3. D 4. D
【知识点】
英语阅读理解、细节理解题、词义猜测题
【点评】
本题考查学生对英语阅读理解中不同题型的解题能力，需准确定位原文信息、结合语境猜测词义、分析比喻义，整体难度适中，适合中等水平学生作答。
【难度系数】
0.6
本题为英语阅读理解题，包含细节理解、词义猜测、推理判断三类题型。解题思路为：1. 针对第1题，定位前两段原文，对比选项排除错误答案；2. 针对第2题，结合第三段语境（16年来首次到海）猜测划线词含义；3. 针对第3题，定位Taylor的表述，分析“banks”的比喻义；4. 针对第4题，定位第五段关于干湿时期差异的内容，找到加少量水的依据。
【解析】
1. 细节理解题：定位前两段，第二段末句提到“the delta at the river's mouth becomes dry and poor”，对应选项C；A选项“无法到达海洋”与第三段“for the first time in 16 years”矛盾，B、D原文未提及，故选C。
2. 词义猜测题：第三段提到“it allowed the river to reach the sea for the first time in 16 years”，说明此次放水是短期的，“temporary”意为“暂时的”，对应选项A。
3. 推理判断题：第四段Taylor称“These lakes are like banks. They provide a place to save up water”，将湖泊比作银行，体现其存水功能，对应选项D；A、B、C均偏离比喻义，故选D。
4. 细节理解题：第五段指出“Such difference shows that a little water could make the river flow smoothly”，即通过研究干湿时期的差异得到加少量水的思路，对应选项D。
【答案】
1. C 2. A 3. D 4. D
【知识点】
英语阅读理解、细节理解题、词义猜测题
【点评】
本题考查学生对英语阅读理解中不同题型的解题能力，需准确定位原文信息、结合语境猜测词义、分析比喻义，整体难度适中，适合中等水平学生作答。
【难度系数】
0.6
