Final answer:
Internal previews and internal summaries are indeed effective transitions that serve to guide readers through the structure of a text by previewing and recapping main points, ensuring coherence and aiding comprehension for a unified whole.
Step-by-step explanation:
True, internal previews and internal summaries can serve as effective transitions in writing. An internal preview serves as a bridge that provides an overview of what is to come in a speech or writing piece, effectively setting the stage for the audience to follow along. It not only previews the content but also helps in organizing the thought pattern of readers or listeners by highlighting key points that will be discussed.
Similarly, an internal summary recaps what has just been discussed before transitioning to a new point. This restatement of major points can reinforce understanding and keep the reader or listener on track with the argument or narrative flow. Both internal previews and summaries are essential elements of a well-structured piece of writing as they guide readers between paragraphs and ideas. They can be vital in maintaining cohesiveness, particularly in longer or more complex works.
Moreover, these transition tools can also help in maintaining a reader's interest by making the structure of the writing more apparent and providing clear logical connections between sections. Their use ensures that the writing has a unified whole where anecdotes, quotations, thick detail, background information, and various concepts mesh smoothly. Hence, internal previews and internal summaries are instrumental in crafting a compelling and easy-to-follow narrative or argument.