One of the most important aspects of reading aloud in the PTE test is being able to pace your answer. Reading too quickly or too slowly will cost points, but reading at EXACTLY the same speed throughout will likely make your voice monotonous and is not a natural way to speak.
One of the best ways to help you maintain good oral fluency with this question type is to use the preparation time to break your answer into phrases or chunks.
For example, this is the example from the previous page broken into logical phrases:
The first thing you should notice is that the chunks often follow logically along with the punctuation. Pauses after commas – and certainly after full stops – are a great way to help you pace your answer. A comma indicates a short pause and a full stop a slightly longer pause.