Charles Yang. 2010. The Infinite Gift ： How Children Learn and Unlearn the Languages of the World. New York： Scribner Book Company. x ＋ 288pp.
1．引言《无限的天赋：儿童如何学习和忘却世界上的语言》平装版于2010年由Scribner出版社出版（精装版是2006年出版的）。此书是CharlesYang继《自然语言知识与习得》（2002）之后的又一力作。
The notion of logical form plays a central role in the philosophy of language and in linguistics.But what logical form is has not been clear.In this paper I first survey the uses of logical form,and show that this notion has no well-defined meaning.I then discuss three main motivations behind invoking logical form,and argue that two of them are unwarranted,and the third can be satisfied by an approach to the logic of ordinary language that is based on the idea of sentence frames,rather than on the traditional idea of subject and predicate.
