1、题目关键词：points and examples, explain how
2、答题要领：
(1)summarize the features of the communication between babies and mothers.
(2)use examples to explain how the communication is musical in nature.
3、听力材料要点：
(1)Timing: a mother and a baby have a shared sense of timing. A baby can
make sounds with a musical inflection when talking to his mother. The
interplay is musical.
(2)Baby talk: a special and musical language. The meaning of vocabularies
lies in the music of the sounds.
4、模板
(1)In the listening material, the professor discusses the communication
between babies and mothers.
(2)The first musical feature is ... For example, ...
(3)The second ...
