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[2026原创]Grasslands are large, open areas of land covered mainly with grass instead of trees. They are very important natural environments, where plants and animals live together. They cover about one-fourth of all the land on earth. In fact, the only continent that does not have any grasslands is Antarctica.
There are two main types. Temperate grasslands, like the prairies (大草原) of North America, are found in cooler places. Tropical grasslands, often called savannas, are located closer to the equator where it is warmer. To be healthy, grasslands need a climate with plenty of sunshine and some rain.
Many different kinds of animals make their homes in these places. On the American prairies, prairie dogs dig underground homes to escape the heat and other animals that hunt them. In Africa’s savanna, large animals like elephants, zebras, and lions must all share the limited water. South America’s grasslands are home to the rhea, the largest bird on the continent. Australian savannas are home to many marsupials, like kangaroos.
Today, however, many grasslands are in danger. They face serious problems because of human activities. Huge areas have been turned into farmland for growing crops or raising cattle. The growth of cities and climate change also damage these areas, sometimes causing long periods without rain. To protect them, scientists are working with ranchers (牧场主) to find better ways to use the land. They want to manage it in a way that keeps it healthy for many years. By working together, they can help stop the soil from being destroyed and save these very important natural places for the future.
()1. What does the passage suggest about Antarctica?
A. It is covered mainly by savannas.
B. It is home to many special animals.
C. It has a perfect climate for grasslands.
D. Its environment is unsuitable for grass.
()2. What is the main difference between temperate and tropical grasslands?
A. The amount of rain they receive.
B. The types of trees that grow there.
C. The kinds of animals they support.
D. The average temperature of the area.
()3. Why does the writer mention animals like prairie dogs, elephants, and kangaroos?
A. To argue that big animals need more protection.
B. To explain how these animals find food and water.
C. To show that grasslands are found all over the world.
D. To prove that these animals are now in serious danger.
()4. What does the underlined word "them" refer to in the last paragraph?
A. The ranchers.
B. The scientists.
C. The grasslands.
D. Human activities.
()5. What is the writer's main purpose in writing this passage?
A. To tell readers about grasslands.
B. To argue against the growth of cities.
C. To describe the beauty of the savanna.
D. To encourage people to become ranchers.

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阅读选择·语篇导读 本文介绍了草原的相关信息。
快速对答案 1—5 D D C C A
1. D 推理判断题。根据第一段的“In fact, the only continent that does not have any grasslands is Antarctica.”可推知，南极洲的环境不适合草生长。故选D项。
2. D 推理判断题。根据第二段的“Temperate grasslands... are found in cooler places. Tropical grasslands... are located closer to the equator where it is warmer.”可知，温带草原位于较冷的地方，而热带草原位于较暖和的地方。因此，它们之间的主要区别在于所在区域的平均温度。故选D项。
3. C 推理判断题。第三段分别列举了不同大洲的草原上的动物，作者用具体例子来证明草原遍布世界各地。故选C项。
4. C 词义猜测题。根据最后一段的“Today, however, many grasslands... To protect them, scientists are working with ranchers to find better ways to use the land.”可知，them指代的是科学家们正在努力保护的草原。故选C项。
5. A 推理判断题。文章介绍了草原的定义、类型、分布、动物以及面临的威胁和保护措施。因此，作者的主要目的是向读者介绍草原。故选A项。