The Very Hungry Caterpillar by Eric Carle is a wonderful book for children. Below there is a pdf document from Linguisystems.com that has different activities targeting receptive and expressive language skills with corresponding objectives/goals.
LinguiSystems, Inc. (2007). Speech and language activities for young learners: The very hungry caterpillar.
Carle, E. (1994).The very hungry caterpillar. Penguin Group.