Here is a complete lesson plan on linking verbs. Because sentences with predicate adjectives are one of the most commonly used structures in both English prose and speech, I teach them several times in the course of the parts of speech unit I wrote several years ago (and continue to revise).
Anyway, here is the Cultural Literacy worksheet on intransitive verbs with which I open this lesson after a class break. This scaffolded worksheet on linking verbs is at the center of this lesson. Finally, here is a learning support on the verb to be to help students conjugate this often confusing verb.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.
Mark's Text Terminal 