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八、阅读理解
The Eye of the Sahara is one of the earth's most amazing natural wonders. It's a special place in the desert of Mauritania, Africa. Seen from the sky, it looks like a huge, bright eye! It is as long as 500 football fields. The Eye of the Sahara looks like a big round pizza with different coloured parts.
How was it made? Millions of years ago, the ground under the sand started to rise. Then, wind and rain slowly wore away the soft rocks, leaving the hard ones behind. Over time, these hard rocks formed the beautiful circles we see today. From above, you can count about 10 round circles, and each one has a different colour. The biggest circle is on the outside, with smaller ones inside.
But the Eye of the Sahara is in trouble. The desert is very dry, and sandstorms often blow over it. The sand can make the rocks difficult to see. Also, not many people know about this amazing place because it's far from big cities.
What can we do to help? Scientists are studying the Eye of the Sahara to find ways to conserve the rocks from sand. Some people also suggest building a small road or a simple visitor centre nearby. This way, more tourists can come and see the Eye of the Sahara.
1. What does the Eye of the Sahara look like?
A. A football field. B. A bright star.
C. A colourful pizza. D. A deep ocean.
2. What can we learn about the circles of the Eye of the Sahara from Paragraph 2?
A. They are all of the same size. B. The smallest circle is in the centre.
C. Each circle has the same colour. D. There are about 8 round circles.
3. Why can't many people visit the Eye of the Sahara easily?
A. Because it's too small to find. B. Because it's far from cities.
C. Because it's always full of water. D. Because it's too hot to get there.
4. What does the underlined word "conserve" in Paragraph 4 mean?
A. Climb. B. Hike. C. Develop. D. Protect.
5. What is the main purpose of the passage?
A. To talk about dangerous sandstorms.
B. To tell how to build a visitor centre.
C. To compare different deserts in Africa.
D. To describe a natural wonder and its challenges.
The Eye of the Sahara is one of the earth's most amazing natural wonders. It's a special place in the desert of Mauritania, Africa. Seen from the sky, it looks like a huge, bright eye! It is as long as 500 football fields. The Eye of the Sahara looks like a big round pizza with different coloured parts.
How was it made? Millions of years ago, the ground under the sand started to rise. Then, wind and rain slowly wore away the soft rocks, leaving the hard ones behind. Over time, these hard rocks formed the beautiful circles we see today. From above, you can count about 10 round circles, and each one has a different colour. The biggest circle is on the outside, with smaller ones inside.
But the Eye of the Sahara is in trouble. The desert is very dry, and sandstorms often blow over it. The sand can make the rocks difficult to see. Also, not many people know about this amazing place because it's far from big cities.
What can we do to help? Scientists are studying the Eye of the Sahara to find ways to conserve the rocks from sand. Some people also suggest building a small road or a simple visitor centre nearby. This way, more tourists can come and see the Eye of the Sahara.
1. What does the Eye of the Sahara look like?
A. A football field. B. A bright star.
C. A colourful pizza. D. A deep ocean.
2. What can we learn about the circles of the Eye of the Sahara from Paragraph 2?
A. They are all of the same size. B. The smallest circle is in the centre.
C. Each circle has the same colour. D. There are about 8 round circles.
3. Why can't many people visit the Eye of the Sahara easily?
A. Because it's too small to find. B. Because it's far from cities.
C. Because it's always full of water. D. Because it's too hot to get there.
4. What does the underlined word "conserve" in Paragraph 4 mean?
A. Climb. B. Hike. C. Develop. D. Protect.
5. What is the main purpose of the passage?
A. To talk about dangerous sandstorms.
B. To tell how to build a visitor centre.
C. To compare different deserts in Africa.
D. To describe a natural wonder and its challenges.
答案
1.C 2.B 3.B 4.D 5.D
解析
【分析】
做此类阅读理解题时，需先通读全文把握文章核心内容（本文围绕撒哈拉之眼这一自然奇观，介绍其外观、形成、面临的问题及保护建议），再带着问题回原文定位关键信息，区分细节、词义、主旨类题型的解题逻辑，逐一匹配选项得出答案。
【解析】
1. 细节理解题：根据第一段最后一句“The Eye of the Sahara looks like a big round pizza with different coloured parts.”可知，撒哈拉之眼看起来像彩色的大披萨，对应选项C。A选项是说长度等于足球场，并非外观像；B选项原文是“huge bright eye”而非亮星；D选项未提及深海，排除A、B、D，选C。
2. 细节理解题：根据第二段“each one has a different colour. The biggest circle is on the outside, with smaller ones inside.”可知，圆圈大小不同、颜色不同，最小的在中心，约10个圆圈，排除A、C、D，选B。
3. 细节理解题：根据第三段最后一句“not many people know about this amazing place because it's far from big cities.”可知，人们难前往是因为远离大城市，对应选项B。A、C、D均与原文沙漠干燥、无大量水等信息不符，选B。
4. 词义猜测题：根据第四段“find ways to conserve the rocks from sand”可知，科学家找方法保护岩石免受沙子侵害，conserve意为“保护”，对应选项D。A（爬）、B（徒步）、C（发展）均不符合语境，选D。
5. 主旨大意题：文章先介绍撒哈拉之眼这一自然奇观，再讲其面临的问题（挑战），对应选项D。A仅涉及沙尘暴这一局部内容；B是保护建议的一部分；C未比较非洲沙漠，排除A、B、C，选D。
【答案】
1.C 2.B 3.B 4.D 5.D
【知识点】
阅读理解（细节理解、词义猜测、主旨大意）
【点评】
本题为自然类阅读理解，题目侧重基础细节查找、词义推测和主旨概括，只要仔细回原文定位信息，即可准确作答，难度适中。
【难度系数】
0.7
做此类阅读理解题时，需先通读全文把握文章核心内容（本文围绕撒哈拉之眼这一自然奇观，介绍其外观、形成、面临的问题及保护建议），再带着问题回原文定位关键信息，区分细节、词义、主旨类题型的解题逻辑，逐一匹配选项得出答案。
【解析】
1. 细节理解题：根据第一段最后一句“The Eye of the Sahara looks like a big round pizza with different coloured parts.”可知，撒哈拉之眼看起来像彩色的大披萨，对应选项C。A选项是说长度等于足球场，并非外观像；B选项原文是“huge bright eye”而非亮星；D选项未提及深海，排除A、B、D，选C。
2. 细节理解题：根据第二段“each one has a different colour. The biggest circle is on the outside, with smaller ones inside.”可知，圆圈大小不同、颜色不同，最小的在中心，约10个圆圈，排除A、C、D，选B。
3. 细节理解题：根据第三段最后一句“not many people know about this amazing place because it's far from big cities.”可知，人们难前往是因为远离大城市，对应选项B。A、C、D均与原文沙漠干燥、无大量水等信息不符，选B。
4. 词义猜测题：根据第四段“find ways to conserve the rocks from sand”可知，科学家找方法保护岩石免受沙子侵害，conserve意为“保护”，对应选项D。A（爬）、B（徒步）、C（发展）均不符合语境，选D。
5. 主旨大意题：文章先介绍撒哈拉之眼这一自然奇观，再讲其面临的问题（挑战），对应选项D。A仅涉及沙尘暴这一局部内容；B是保护建议的一部分；C未比较非洲沙漠，排除A、B、C，选D。
【答案】
1.C 2.B 3.B 4.D 5.D
【知识点】
阅读理解（细节理解、词义猜测、主旨大意）
【点评】
本题为自然类阅读理解，题目侧重基础细节查找、词义推测和主旨概括，只要仔细回原文定位信息，即可准确作答，难度适中。
【难度系数】
0.7
