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B
The Sahara Desert is the largest desert in the world. It is about 9,000,000 square kilometres in size. This is almost the size of America or China. The desert covers eleven countries in the north of Africa.
The Nile runs through the Sahara Desert all year round. But there are also other rivers running through it seasonally. The geography of the desert includes huge sand dunes and dune fields. Some of the sand dunes are so huge that they can even be over 152 metres high. But there are also other amazing landforms in different parts of the desert.
It is very hot and dry in the Sahara Desert. The temperature there is usually 30℃. However, during the hottest months, the temperature can go over 50℃. Because of the high temperatures and poor conditions of the desert, only a few plants live here, just about 500 kinds. They also play a role in the number of animals. In the driest part of the desert, there are only 70 different kinds of animals.
Today the Sahara's population is around four million. They move from place to place through the desert. Because of this there are many different cultures and languages in this area.
5. What can we know about the Sahara Desert from the first paragraph?
A. It is the same as America in size.
B. It is almost as big as China.
C. It is about 900,000 square kilometres in size.
D. It covers eleven countries in the south of Africa.
6. What does the underlined word "They" refer to?
A. High temperatures and poor conditions.
B. Some plants and animals.
C. Huge dunes and dune fields.
D. Languages and cultures.
7. What can't we know about the Sahara Desert from the passage?
A. Its size. B. Its landforms.
C. Its temperatures. D. Its future.
8. What can we learn from the passage?
A. There is no water in the Sahara Desert.
B. Only the Nile goes through the desert.
C. There are only seventy different kinds of plants living there.
D. The Sahara area is rich in cultures and languages.
9. Where can we find the passage most probably?
A. In a storybook. B. In a sports magazine.
C. In a geography book. D. In a health newspaper.
The Sahara Desert is the largest desert in the world. It is about 9,000,000 square kilometres in size. This is almost the size of America or China. The desert covers eleven countries in the north of Africa.
The Nile runs through the Sahara Desert all year round. But there are also other rivers running through it seasonally. The geography of the desert includes huge sand dunes and dune fields. Some of the sand dunes are so huge that they can even be over 152 metres high. But there are also other amazing landforms in different parts of the desert.
It is very hot and dry in the Sahara Desert. The temperature there is usually 30℃. However, during the hottest months, the temperature can go over 50℃. Because of the high temperatures and poor conditions of the desert, only a few plants live here, just about 500 kinds. They also play a role in the number of animals. In the driest part of the desert, there are only 70 different kinds of animals.
Today the Sahara's population is around four million. They move from place to place through the desert. Because of this there are many different cultures and languages in this area.
5. What can we know about the Sahara Desert from the first paragraph?
A. It is the same as America in size.
B. It is almost as big as China.
C. It is about 900,000 square kilometres in size.
D. It covers eleven countries in the south of Africa.
6. What does the underlined word "They" refer to?
A. High temperatures and poor conditions.
B. Some plants and animals.
C. Huge dunes and dune fields.
D. Languages and cultures.
7. What can't we know about the Sahara Desert from the passage?
A. Its size. B. Its landforms.
C. Its temperatures. D. Its future.
8. What can we learn from the passage?
A. There is no water in the Sahara Desert.
B. Only the Nile goes through the desert.
C. There are only seventy different kinds of plants living there.
D. The Sahara area is rich in cultures and languages.
9. Where can we find the passage most probably?
A. In a storybook. B. In a sports magazine.
C. In a geography book. D. In a health newspaper.
答案
B 5.B 6.A 7.D 8.D 9.C
解析
【分析】
这是一篇关于撒哈拉沙漠的科普类阅读理解题，解题需根据每道题的问题精准定位原文对应段落，提取关键信息，结合选项逐一排除错误答案，选出正确选项。解题时要注意细节的准确性（如数字、方位、指代内容），以及对文章整体内容的把握。
【解析】
5. 定位第一段：原文提到撒哈拉沙漠面积约900万平方公里，几乎和美国或中国一样大，覆盖非洲北部11个国家。A选项“和美国面积相同”（原文是“almost”而非“same”）错误；C选项“90万平方公里”（原文是9,000,000即900万）错误；D选项“非洲南部”（原文是北部）错误；B选项“几乎和中国一样大”符合原文，故选B。
6. 定位第三段：划线词“They”前一句是“Because of the high temperatures and poor conditions of the desert, only a few plants live here...”，后一句说明它们影响动物数量，可知“They”指代前面的“high temperatures and poor conditions”，故选A。
7. 文章第一段讲面积，第二段讲地貌，第三段讲温度，未提及撒哈拉沙漠的未来，因此无法从文中得知的是D选项，故选D。
8. 定位各段：A选项“撒哈拉没有水”错误（尼罗河和季节性河流流经）；B选项“只有尼罗河穿过”错误（还有季节性河流）；C选项“只有70种植物”错误（70种是动物）；D选项“该地区有丰富的文化和语言”符合最后一段“many different cultures and languages”，故选D。
9. 文章内容是关于撒哈拉沙漠的地理知识，这类内容最可能出现在地理书中，故选C。
【答案】5.B 6.A 7.D 8.D 9.C
【知识点】阅读理解、细节理解、词义猜测
【点评】本题为科普类阅读理解，侧重考查学生对原文细节信息的定位与理解，以及词义指代的判断，整体难度适中，需学生仔细比对原文与选项的差异。
【难度系数】0.7
这是一篇关于撒哈拉沙漠的科普类阅读理解题，解题需根据每道题的问题精准定位原文对应段落，提取关键信息，结合选项逐一排除错误答案，选出正确选项。解题时要注意细节的准确性（如数字、方位、指代内容），以及对文章整体内容的把握。
【解析】
5. 定位第一段：原文提到撒哈拉沙漠面积约900万平方公里，几乎和美国或中国一样大，覆盖非洲北部11个国家。A选项“和美国面积相同”（原文是“almost”而非“same”）错误；C选项“90万平方公里”（原文是9,000,000即900万）错误；D选项“非洲南部”（原文是北部）错误；B选项“几乎和中国一样大”符合原文，故选B。
6. 定位第三段：划线词“They”前一句是“Because of the high temperatures and poor conditions of the desert, only a few plants live here...”，后一句说明它们影响动物数量，可知“They”指代前面的“high temperatures and poor conditions”，故选A。
7. 文章第一段讲面积，第二段讲地貌，第三段讲温度，未提及撒哈拉沙漠的未来，因此无法从文中得知的是D选项，故选D。
8. 定位各段：A选项“撒哈拉没有水”错误（尼罗河和季节性河流流经）；B选项“只有尼罗河穿过”错误（还有季节性河流）；C选项“只有70种植物”错误（70种是动物）；D选项“该地区有丰富的文化和语言”符合最后一段“many different cultures and languages”，故选D。
9. 文章内容是关于撒哈拉沙漠的地理知识，这类内容最可能出现在地理书中，故选C。
【答案】5.B 6.A 7.D 8.D 9.C
【知识点】阅读理解、细节理解、词义猜测
【点评】本题为科普类阅读理解，侧重考查学生对原文细节信息的定位与理解，以及词义指代的判断，整体难度适中，需学生仔细比对原文与选项的差异。
【难度系数】0.7
