Here's a dialogue between a couple who wants to decide on a hotel for their summer holiday. It covers many comparative structures and can be perfectly used in a grammar lesson on comparatives.
ask students to identify the comparative forms in the text
What's the suggested procedure?
My suggestion is to use this text to introduce comparatives. First, carry out a normal reading comprehension lesson. For your warm-up stage, you can ask simple questions like students' favorite hotels or things they look for in a good hotel. After this part ask students to identify the adjectives and then try to elicit the comparative forms. In this way, you'll move into grammar presentation stage in a smooth and meaningful way.
There's also an online version of this material here.