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　　Monarch butterflies are a beautiful species known for their amazing migration patterns. These butterflies spend their summers in the northern parts of North America, feeding on milkweed plants and growing strong. However, as autumn approaches, they embark on a journey southwards to escape the cold winters.

　　The migration of monarch butterflies is truly remarkable. They fly thousands of miles, covering vast distances to reach their wintering grounds in Mexico and California. This journey is not easy, as they face many challenges, including strong winds and storms. But they persevere, showing great resilience and strength.

　　Once they arrive at their wintering locations, the monarch butterflies cluster together in large groups, forming dense colonies. These colonies provide warmth and protection from predators. It is an amazing sight to see thousands of butterflies gathered together, creating a vibrant and colorful display.

　　In the spring, the monarch butterflies begin their journey back north. They fly again, following the same route or slightly different paths, depending on weather conditions. This cycle of migration continues year after year, making the monarch butterfly a fascinating example of nature's wonders.

　　Questions:

　　1、Where do monarch butterflies spend their summers?

　　A. In Mexico

　　B. In California

　　C. In the northern parts of North America

　　D. In the southern parts of North America

　　2、What do monarch butterflies eat during the summer?

　　A. Fruit

　　B. Nectar

　　C. Milkweed plants

　　D. Insects

　　3、What is the main challenge monarch butterflies face during their migration?

　　A. Lack of food

　　B. Predators

　　C. Strong winds and storms

　　D. Long distances

　　4、Where do monarch butterflies gather in large groups during the winter?

　　A. In Mexico and California

　　B. In the northern parts of North America

　　C. In the southern parts of North America

　　D. In dense forests

　　5、Which of the following is NOT true about monarch butterflies?

　　A. They migrate southwards in autumn.

　　B. They face many challenges during migration.

　　C. They only migrate during the day.

　　D. They return north in the spring.