1、题目关键词：points and examples, explain

 2、答题要领：

 (1)briefly summarize the concept of diffusion.

 (2)use specific examples to explain.

 3、听力材料要点：

 (1)Diffusion is the process whereby something cultural is spread from one group or society to another.

 (2)Many ways: tourism, TV, etc.

 (3)The example of newspaper: borrowed words, printing, paper.

 (4)Diffusion happens not easily, selective. The example of acupuncture(针灸). The practice is absorbed but not the philosophy.

 4、模板

 (1)In the listening material, the professor introduces the concept of diffusion, which means ...

 (2)She uses two examples to explain the idea. The first one is ...

 (3)The second one is ...