The Eye of the Sahara is one of earth's most amazing natural wonders. It's a special place in the desert of Mauritania, Africa. Looking from the sky, it looks like a huge, bright eye! It is as long as about 438 football fields. The Eye 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 up. Then, wind and rain slowly wore away(磨薄) the soft rocks, leaving the hard ones behind. Over time, these hard rocks made the beautiful circles we see today. From above, you can count about 20 round circles. 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(沙尘暴) 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 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.
()37. What can we learn about the circles of the Eye from Paragraph 2?
A. They are all 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.
()38. Why can't many people visit the Eye 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.
()39. What does the underlined word "conserve" in Paragraph 4 mean?
A. Climb.
B. Hike.
C. Develop.
D. Protect.
()40. What is the main purpose of the text?
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

37.B 38.B 39.D 40.D

【分析】
本题为英语阅读理解题，需根据各题目要求定位原文对应段落，结合细节信息、语境逻辑等逐一分析选项：
1. 37题定位第二段，查找关于Eye的圆的描述；
2. 38题定位第三段，找人们难以参观的原因；
3. 39题定位第四段，结合语境猜测划线词词义；
4. 40题梳理全文内容，判断主旨。
【解析】
37题：根据第二段“From above, you can count about 20 round circles... The biggest circle is on the outside, with smaller ones inside.”可知，圆的大小不同（A错），最小的在中心（B对），颜色不同（C错），约20个圆（D错），选B。
38题：根据第三段最后一句“Also, not many people know about this amazing place because it's far from big cities.”可知，原因是远离大城市，选B。
39题：第四段语境为科学家找方法保护岩石免受沙子影响，conserve意为“保护”，对应protect，选D。
40题：全文先介绍撒哈拉之眼是自然奇观，再讲它面临的困境（沙尘暴、人少知晓），主旨是描述自然奇观及其挑战，选D。
【答案】
37.B 38.B 39.D 40.D
【知识点】
英语阅读理解、细节理解、词义猜测、主旨大意
【点评】
本题围绕撒哈拉之眼展开，涵盖细节查找、词义推断、主旨归纳三类基础题型，需学生精准定位原文信息，结合语境分析，整体难度适中，适合初中阶段学生练习。
【难度系数】
0.7

四、词汇运用(本题有15小题,每小题1分,共15分)
A. 用方框中所给单词的适当形式填空。每词限用一次。
confidence against especially promise according to
Growing up is like riding a roller coaster, 41. when dreams are out of our reach. Last year, I 42. to start a charity for homeless people. With excitement, I set up a small team and planned several events.
But soon, I faced heartbreaking moments. Our first fundraiser failed with empty donation boxes. Yet, the failure didn't win 43. me. It taught me to reflect(认真思考). Determined to improve, I researched successful charities and tried to learn from them. 44. their valuable experience, our efforts finally paid off. More people joined and donations increased. The joy of making a difference built my 45. .

41. especially 42. promised 43. against 44. According to 45. confidence

【分析】
本题为选词填空，需结合语境、词性及单词形式完成填空。解题思路：1. 通读全文，理解文章大意；2. 分析每个空缺处的语境，确定所需单词的词义、词性；3. 结合时态、固定搭配等语法规则，选择单词的适当形式；4. 验证所选单词是否符合逻辑与语法要求。
【解析】
41. 空格处需修饰后面的从句，应用副词，结合语境“成长像坐过山车，尤其当梦想遥不及时”，选副词especially，故填especially；
42. 由时间状语Last year可知，此处用一般过去时，结合固定搭配promise to do sth.（承诺做某事），故填promised；
43. 固定短语win against意为“战胜”，结合语境“失败没有战胜我”，故填against；
44. 结合语境“根据他们的宝贵经验，我们的努力终于有了回报”，固定短语according to意为“根据”，置于句首首字母大写，故填According to；
45. 固定搭配build one's confidence意为“建立某人的自信”，结合语境“带来改变的快乐建立了我的自信”，故填confidence；
【答案】
41. especially 42. promised 43. against 44. According to 45. confidence
【知识点】
词汇运用、副词用法、固定搭配
【点评】
本题考查基础的选词填空，侧重单词在语境中的运用，涉及副词、动词过去式、固定短语等知识点，难度适中，需学生掌握单词基本含义及常见用法。
【难度系数】
0.6