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三、阅读下面短文，从短文后框内的选项中选出可以填入空白处的最佳选项。选项中有一项为多余选项。
Every year, over 1.5 million wild animals make a really long trip across the big grasslands of East Africa. They follow the rain and look for fresh grass. 1.
The Migration’s Path and Timing
Animals move between Tanzania's Serengeti National Park and Kenya's Maasai Mara National Reserve. 2. Here's how their trip goes:
December: They gather（聚集） in the southern part of the Serengeti, where thousands of baby animals are born.
July/August: When it's dry, they start walking north. They all meet at the Mara River.
October: The animals reach the Maasai Mara and eat the green grass there until（直到） the rains come back.
November/December: They start walking south again.
The Most Exciting Part: 3.
Thousands of crocodiles wait under the water to catch the poor animals. Many animals lose their lives, but those who survive（幸存） keep going to find green grass in the Maasai Mara.
Other Dangers Along the Way
Lions, cheetahs, and hyenas follow the herds（兽群）, looking for easy food. 4. However, the animals don't give up. This is how they live.
Life and Strength Together
The Great Migration shows how everything in nature is connected（连接）. 5. If you ever get a chance to see this once-in-a-lifetime event, don't miss it—you'll remember it forever!
A. Crossing the Mara River!
B. The migration happens in a big circle.
C. This activity is called the Great Migration（迁徙）.
D. It is one of human's most amazing wonders（奇观）!
E. Even the rivers and long walks are not safe.
F. It tells us that animals need each other to live.
Every year, over 1.5 million wild animals make a really long trip across the big grasslands of East Africa. They follow the rain and look for fresh grass. 1.
The Migration’s Path and Timing
Animals move between Tanzania's Serengeti National Park and Kenya's Maasai Mara National Reserve. 2. Here's how their trip goes:
December: They gather（聚集） in the southern part of the Serengeti, where thousands of baby animals are born.
July/August: When it's dry, they start walking north. They all meet at the Mara River.
October: The animals reach the Maasai Mara and eat the green grass there until（直到） the rains come back.
November/December: They start walking south again.
The Most Exciting Part: 3.
Thousands of crocodiles wait under the water to catch the poor animals. Many animals lose their lives, but those who survive（幸存） keep going to find green grass in the Maasai Mara.
Other Dangers Along the Way
Lions, cheetahs, and hyenas follow the herds（兽群）, looking for easy food. 4. However, the animals don't give up. This is how they live.
Life and Strength Together
The Great Migration shows how everything in nature is connected（连接）. 5. If you ever get a chance to see this once-in-a-lifetime event, don't miss it—you'll remember it forever!
A. Crossing the Mara River!
B. The migration happens in a big circle.
C. This activity is called the Great Migration（迁徙）.
D. It is one of human's most amazing wonders（奇观）!
E. Even the rivers and long walks are not safe.
F. It tells us that animals need each other to live.
答案
【解析】：我们可以根据上下文逻辑逐一确定答案：
1. 空前描述了东非野生动物每年长途移动、追随雨水寻找鲜草的现象，C选项给这个活动命名为“大迁徙”，可以自然引出下文围绕大迁徙展开的介绍，符合语境。
2. 空后详细列出了不同月份动物的移动路线：12月在塞伦盖蒂南部、7-8月向北行进、11-12月又向南返回，说明迁徙是循环的路线，B选项“迁徙以大循环的形式进行”刚好对应后文的路线说明，符合语境。
3. 空后内容讲述马拉河水下藏着大量鳄鱼，很多动物渡河时丧命，A选项“穿越马拉河！”对应本段描述的核心内容，也呼应标题“最刺激的部分”，符合语境。
4. 空前提到狮子、猎豹等天敌跟随兽群捕猎，E选项“就连河流和长途跋涉的路途都不安全”进一步补充说明迁徙途中处处是危险，和后文“但动物们没有放弃”形成合理的逻辑转折，符合语境。
5. 空前提到大迁徙展现了自然界万物都是相互关联的，F选项“这告诉我们动物需要彼此才能生存”是对“万物相连”的自然延伸解读，契合本段“共生的生命与力量”的主题，符合语境。
多余选项为D。
【答案】：1. C 2. B 3. A 4. E 5. F
1. 空前描述了东非野生动物每年长途移动、追随雨水寻找鲜草的现象，C选项给这个活动命名为“大迁徙”，可以自然引出下文围绕大迁徙展开的介绍，符合语境。
2. 空后详细列出了不同月份动物的移动路线：12月在塞伦盖蒂南部、7-8月向北行进、11-12月又向南返回，说明迁徙是循环的路线，B选项“迁徙以大循环的形式进行”刚好对应后文的路线说明，符合语境。
3. 空后内容讲述马拉河水下藏着大量鳄鱼，很多动物渡河时丧命，A选项“穿越马拉河！”对应本段描述的核心内容，也呼应标题“最刺激的部分”，符合语境。
4. 空前提到狮子、猎豹等天敌跟随兽群捕猎，E选项“就连河流和长途跋涉的路途都不安全”进一步补充说明迁徙途中处处是危险，和后文“但动物们没有放弃”形成合理的逻辑转折，符合语境。
5. 空前提到大迁徙展现了自然界万物都是相互关联的，F选项“这告诉我们动物需要彼此才能生存”是对“万物相连”的自然延伸解读，契合本段“共生的生命与力量”的主题，符合语境。
多余选项为D。
【答案】：1. C 2. B 3. A 4. E 5. F
