Final answer:
The naming part is 'The roller rink' and the telling part is 'is in my town'.
Step-by-step explanation:
In the sentence The roller rink is in my town, the naming part is The roller rink and the telling part is is in my town. To draw lines under the telling part, you would draw two lines under the phrase is in my town. The naming part of the sentence identifies what the sentence is talking about, while the telling part provides information or states something about the subject.
Example: My room is upstairs. (My room is the naming part.) My sister jumps in the leaves – (Jumps in the leaves is the telling part. It tells what the naming part does. The subject is sometimes called the “naming part” of a sentence or clause. It shows what the sentence is about, or who or what is performing an action in the sentence. The subject is most often a noun, pronoun, or noun phrase.