欲加强难度还请移步《地道美语听力播客（快速版）》Irma:Do you really think we'll be rescued? It's been six hours and I'm losing hope.
Bert:It's hard to say. I'm sure search and rescue teams are looking for us as we speak.
Irma:But what if they don't come in time?
We didn't bring any provisions and we're almost out of water.
Bert:You're afraid of starvation and dying of thirst?
I think we'd die from hypothermia or exposure to the elements first.
Irma:Thanks. I hadn't thought of that until you mentioned it.
Hey, I think that's the sound of a helicopter.
Bert:You're hearing things. That's not a helicopter.
Irma:I think I hear search and rescue dogs. I think they're onto our scent!
Bert:I think you're starting to hallucinate. I don't hear anything.
Irma:Can't you just humor me? I'm trying to keep hope alive.
Bert:Oh, sure. Hey, I think I hear something.
Bert:Yeah, it's Santa Claus on his sleigh.