【正确答案】 A

【答案解析】[听力原文]
   M: Good evening and welcome to Our World. Tonight's guest is the explorer Sally Brendle. Sally, you've been on expeditions to some of the most unspoilt forests on the planet. What is it like?
   W: Fantastic. There's nothing better than being the first scientist to see a particular river, for example, or to find a new plant or animal. On my most recent trip, we were looking for a rare crocodile in a rainforest in Asia but we discovered a previously unknown snake. Although it was tiny and completely harmless, it was still very exciting.
   M: it sounds it! So, tell us about your early life. How did you become an explorer?
   W: Well, I've been interested in nature ever since I was a young child. While my friends were playing games, I used to go fishing or looking for animals in the fields near my home. I wasn't interested in protecting creatures in those days. In fact, I used to catch them to put them in my own little zoo!
   M: And what was your first expedition?
   W: As soon as I was eighteen, I went to Africa with an organization called Africa Exchange. They run different projects. Things like helping to build schools or studying how monkeys behave. My job was to count how many lions and elephants there were in a certain area every day. That was a fantastic introduction, and really important for the protection programme.
   M: And what did you do after that?
   W: While I was at university I met a famous Brazilian explorer. He was planning an expedition to the Amazon rainforest in order to study the plants that people use for medicine. A team member broke her leg so he asked me to go in her place.
   M: Can you describe what it's like to be in a rainforest?
   W: Well, the thing I always notice is the atmosphere. Although it's not silent, the noises are all nature, which I find very relaxing. Despite the heat and the wildlife, it's quite safe if you're careful. Modern technology means you can't really get lost nowadays.
   M: Well, it sounds really interesting.
萨利在她最近的一次旅途中，原本是在亚洲的雨林中寻找一种罕见的鳄鱼，但是事实上他们发现了一种先前从不为人所知的蛇。故选A。