以下是一段原创的考研复试英语听力内容：
情景设定：校园学术交流
场景一：校园参观
You are visiting a university campus. You overhear two students, Alice and Bob, discussing their impression of the campus.
Alice: This campus is so beautiful! The architecture is modern, and the greenery is stunning.
Bob: I agree. The library is also impressive. It's huge, and the resources are abundant.
场景二：学术讲座
You attend a university lecture on environmental science. The speaker is Professor Smith.
Professor Smith: Today, we will be discussing the impact of climate change on global ecosystems. It is crucial for us to understand these changes and find sustainable solutions.
场景三：校园活动
There is a campus event happening, and you hear a conversation between two students, Emily and David, who are signing up for the event.
Emily: This event on cultural exchange sounds fascinating. I'm really excited to meet people from different countries.
David: Me too! I think it's a great opportunity to broaden our horizons and learn about different cultures.
场景四：期末考试
You overhear two students, Sarah and Tom, discussing their study plans for the upcoming final exams.
Sarah: I'm really stressed about the math exam. I need to study more.
Tom: Don't worry, Sarah. We can study together and help each other out.
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