托福TPO74听力Lecture1原文+题目+答案+MP3音频下载

托福TPO74听力Lecture1原文+题目+答案+MP3音频下载

Listen to part of a lecture in a biology.

Class biologists study complex animal behaviors to find out why these behaviors evolved, how they function, how they're transferred to the next generation and so forth. The courting behavior of the bowerbird is studied for all these reasons. A bowerbird is about the size of a pigeon and found mostly in Australia's rainforest, which is a small but ecologically diverse area in northeastern Australia. Bower refers to the male birds’ nest or structure. Now, most birds, including female bowerbirds, build nests to raise chicks, but male bowerbirds build elaborate structures to help them attract mates.

Take a look at this bowerbird decorating the outside of his structure. As you see, construction takes place on the forest floor, not in a tree, and apparently the female bowerbirds like blue decorations. The male decorates the bower with feathers, flowers, pebbles, and shells. We found bowers decorated with bright blue clothes pins probably snatched from someone's backyard. Bowerbirds are also known to steal ornaments from other bowerbirds. When the bower is ready, a female bird may come over to it and watch the male perform for her. He'll dance, sing, or rather chirp often quite energetically.托福TPO74听力Lecture1原文余下省略！

1. What is the lecture mainly about?

A. The functions of different types of bird nests

B. The influence of habitat on bird behavior

C. The courting behavior of a species of bird

D. A biologist who studies bowerbirds

2. Besides building a bower, what does a male bowerbird do to attract a

mate? Click on 2 answers.

A. Decorates his bower with colorful objects

B. Paints his feathers with chewed blueberries

C. Takes over another male's bower

D. Moves around and vocalizes enthusiastically

托福TPO74听力Lecture1题目余下省略！

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