Listen to The Grinch Song and read the included lyrics with your students.
Also included is a t-chart for students to find the similes and the metaphors in the song. Also is a worksheet where students can create their own verse to the song where they must include one simile and one metaphor.
Check out my others:
Rudolph The Red Nosed Reindeer, Nouns and Adjectives
This Is Halloween from The Nightmare Before Christmas, Similes and Metaphors