问题
选择题
下列四地中，地球自转线速度最小的是：
A．乌鲁木齐
B．库尔勒
C．阿克苏
D．且末
答案
答案：A
题目分析：纬度越高自传的线速度越小，对比四城市乌鲁木齐的纬度最高，所以线速度最小。故选A。
点评：本题考查线速度的大小，试题难度较小，解题关键是掌握地球上线速度的分布规律。
搜题请搜索小程序“爱下问搜题”
下列四地中，地球自转线速度最小的是：
A．乌鲁木齐
B．库尔勒
C．阿克苏
D．且末
答案：A
题目分析：纬度越高自传的线速度越小，对比四城市乌鲁木齐的纬度最高，所以线速度最小。故选A。
点评：本题考查线速度的大小，试题难度较小，解题关键是掌握地球上线速度的分布规律。
任务型阅读：阅读文章，根据文章内容填写表格。（每空一词，共10分） Zhalong is a nature reserve in Heilongjiang in northeast China. It is one of the world’s most important wetlands. The area provides food and shelter for wildlife. It is an ideal home for different kinds of plants, fish and birds. Many birds live comfortably in Zhalong Nature Reserve all year round, while some only stay there for a short time. There are many fish in the wetlands, and the birds can easily catch them for food. Zhalong Nature Reserve is an important living area for the rare red-crowned cranes. There are not many red-crowned cranes in the world. Some of them live in Zhalong. Some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife. More and more birds are in danger because they do not have enough living space. Many of them died. The Chinese government wants to protect these endangered birds, and they can be safe in Zhalong. Every year, a lot of tourists go to Zhalong to watch birds. This year, members of our Bird Watching Club are going to study the different kinds of birds in Zhalong and the changes in their numbers. The study begins next month. We do a bird count once a year. We are now inviting secondary school students to help. We need more people to help us count and do something to help the birds. Many people do not understand the importance of the wetlands. We hope this information will help them understand and make them actively take action to protect wildlife.
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