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TPO 19 Listening Script
(Final)
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Updated: 2010-11-30

目录
Conversation 1 ................................................................................................................................................... 2
Lecture 1-Linguistics(Proto-Indo-European) ...................................................................................................... 5
Lecture 2-Astronomy(Radio Astronomy & Optical Astronomy) ......................................................................... 7
Conversation 2 ................................................................................................................................................. 10
Lecture 3-Marine Biology(Plant Life in Salt Marshes) ...................................................................................... 13
Lecture 4-Art History(Cecilia Beaux) ................................................................................................................ 15

1
******@pku.
Conversation 1
Listen to a conversation between a student and the professor.

Student
Hi, professor Handerson. That was a really interesting lecture in class today.

Professor
Thanks, Tom. Yeah, animals’ use of deception, ways they play tricks on other animals, that’s a fascinating area.
One we are really just starting to understand.

Student
Yeah, you know, selective adaptations over time are one thing. Oh, like, non-poisonous butterflies, that have
come to look like poisonous ones. But the idea that animals of the same species intentionally deceive each other,
I have never heard that before.

Professor
Right, like, there are male frogs who lower their voices and end up sounding bigger than they really are.

Student
So they do that to keep oth