In addition, work with animals fosters the use of techniques that are not dependent on verbal responses and that may therefore be suitable for use with preverbal children.

• 此句应注意两个并列的定语从句。参考译文：另外，对动物的研究工作促进了非语言交流的方法的应用。这些方法正适合应用于还不会讲话的孩子。