The subject is: <u>A drowning man,</u> and the predicate is: <u>was rescued by two campers. </u>
Explanation:
A subject is what the sentence is talking about (who or what). In this case, it is <u>a drowning man</u>. A predicate is a part of a sentence that is stating something about the subject. Therefore, the predicate is: <u>was rescued by two campers.</u>