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Standing tall in the north of Ningxia，the Helan Mountains are a natural treasure of Northwest China. Spreading for about 250 kilometers，these mountains work as a natural wall，stopping the desert winds from the west and protecting the rich land of Ningxia's plains(平原).
The Helan Mountains have special rock shapes and bright cliff paintings that show the lives of ancient moving tribes(游牧部落). The mountains are also a safe home for rare wild animals，including the rare Chinese forest musk deer(中国林麝)and blue sheep(岩羊). With more than 600 kinds of plants，the Helan Mountains make a rich and different natural system in the dry northwest.
As an important natural treasure，the Helan Mountains have problems from cutting trees without permission. To protect this amazing place，the local government has built nature parks(自然保护区)and strict rules to control human activities，making sure the mountains' beauty and natural system stay safe for future people.
(
A. Provide water for the plains.
B. Stop desert winds from the west.
C. Be a popular place for farming.
D. Become the highest mountains.
(
A. Red-crowned cranes(丹顶鹤).
B. Chinese forest musk deer.
C. Tigers and lions.
D. Pandas.
(
A. Cutting trees and feeding many animals on the grass.
B. Too many bird watchers.
C. Lack of water in the mountains.
D. Small sand dunes(沙丘).
(
A. To introduce the history of the Helan Mountains.
B. To explain how to build nature parks in Ningxia.
C. To introduce the Helan Mountains' value and call for its protection.
D. To describe the rare animals in the Helan Mountains.
Standing tall in the north of Ningxia，the Helan Mountains are a natural treasure of Northwest China. Spreading for about 250 kilometers，these mountains work as a natural wall，stopping the desert winds from the west and protecting the rich land of Ningxia's plains(平原).
The Helan Mountains have special rock shapes and bright cliff paintings that show the lives of ancient moving tribes(游牧部落). The mountains are also a safe home for rare wild animals，including the rare Chinese forest musk deer(中国林麝)and blue sheep(岩羊). With more than 600 kinds of plants，the Helan Mountains make a rich and different natural system in the dry northwest.
As an important natural treasure，the Helan Mountains have problems from cutting trees without permission. To protect this amazing place，the local government has built nature parks(自然保护区)and strict rules to control human activities，making sure the mountains' beauty and natural system stay safe for future people.
(
B
)5. What is the Helan Mountains's role for Ningxia's plains?A. Provide water for the plains.
B. Stop desert winds from the west.
C. Be a popular place for farming.
D. Become the highest mountains.
(
B
)6. Which rare animal can be found in the Helan Mountains?A. Red-crowned cranes(丹顶鹤).
B. Chinese forest musk deer.
C. Tigers and lions.
D. Pandas.
(
A
)7. What brings problems to the Helan Mountains' natural system?A. Cutting trees and feeding many animals on the grass.
B. Too many bird watchers.
C. Lack of water in the mountains.
D. Small sand dunes(沙丘).
(
C
)8. What is the writer's main purpose of writing this passage?A. To introduce the history of the Helan Mountains.
B. To explain how to build nature parks in Ningxia.
C. To introduce the Helan Mountains' value and call for its protection.
D. To describe the rare animals in the Helan Mountains.
答案
5. B 6. B 7. A 8. C
解析
【翻译】
5. 根据第一段中“stopping the desert winds from the west and protecting the rich land of Ningxia's plains”可知，贺兰山的作用是阻挡西部的沙漠风，故选B。
6. 根据第二段中“a safe home for rare wild animals，including the rare Chinese forest musk deer(中国林麝)and blue sheep(岩羊)”可知，贺兰山有中国林麝这种珍稀动物，故选B。
7. 根据第三段中“the Helan Mountains have problems from cutting trees without permission”可知，乱砍滥伐给贺兰山带来问题，选项A包含砍伐树木的内容，其他选项均未提及，故选A。
8. 文章先介绍贺兰山的生态、人文等价值，再说明其面临的问题及保护措施，作者的主要目的是介绍贺兰山的价值并呼吁对其进行保护，故选C。
【答案】
5.B；6.B；7.A；8.C
【知识点】
细节信息查找；主旨大意归纳；说明文阅读理解
【点评】
本文是一篇说明文，介绍了贺兰山的地理作用、生态人文价值及面临的问题与保护措施。题目注重对文章细节信息的提取和主旨的归纳，能有效考查学生的阅读理解能力，帮助学生提升获取关键信息和总结文章主旨的能力。
【难度系数】
0.75
屹立在宁夏北部的贺兰山是中国西北的自然瑰宝。绵延约250公里，这些山脉就像一道天然的墙，阻挡了来自西部的沙漠风，保护了宁夏平原肥沃的土地。
贺兰山有特殊的岩石形状和明亮的悬崖壁画，展示了古代移动部落的生活。这些山也是稀有野生动物的安全家园，包括稀有的中国森林麝（麝）和蓝羊（）。贺兰山拥有600多种植物，在干旱的西北地区形成了丰富而独特的自然系统。
贺兰山作为重要的自然宝藏，存在着未经许可砍伐树木的问题。为了保护这个神奇的地方，当地政府建立了自然公园，并制定了严格的规则来控制人类活动，确保山脉的美丽和自然系统为未来的人们保持安全。
【解析】5. 根据第一段中“stopping the desert winds from the west and protecting the rich land of Ningxia's plains”可知，贺兰山的作用是阻挡西部的沙漠风，故选B。
6. 根据第二段中“a safe home for rare wild animals，including the rare Chinese forest musk deer(中国林麝)and blue sheep(岩羊)”可知，贺兰山有中国林麝这种珍稀动物，故选B。
7. 根据第三段中“the Helan Mountains have problems from cutting trees without permission”可知，乱砍滥伐给贺兰山带来问题，选项A包含砍伐树木的内容，其他选项均未提及，故选A。
8. 文章先介绍贺兰山的生态、人文等价值，再说明其面临的问题及保护措施，作者的主要目的是介绍贺兰山的价值并呼吁对其进行保护，故选C。
【答案】
5.B；6.B；7.A；8.C
【知识点】
细节信息查找；主旨大意归纳；说明文阅读理解
【点评】
本文是一篇说明文，介绍了贺兰山的地理作用、生态人文价值及面临的问题与保护措施。题目注重对文章细节信息的提取和主旨的归纳，能有效考查学生的阅读理解能力，帮助学生提升获取关键信息和总结文章主旨的能力。
【难度系数】
0.75
