介绍：这套教材是通过听的方式来学习语言，听众在没有教科书的情况下，通过听，来学习语法，词汇，发音。每个等级是90分钟，一个音轨上是英语，另一个则是目标语言。

Listeners learn pronunciation, vocabulary, and grammar without the need of a textbook. Each level includes two 90 minute cassettes (or audio CDs) with English on one track, and the target language on the other as well as a listening guide with complete recorded program text plus important grammar rules

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