Final answer:
An effective introduction includes foreshadowing, a hook to capture interest, context for understanding, and a clear thesis statement that previews main points to come, all working together to engage the reader.
Step-by-step explanation:
An effective introduction is clear, foreshadowing what is to come and gains reader interest. It contains three parts: a hook, important information, and a thesis statement.
The hook captures readers' attention and interest through a quote, a brief story, or a startling statistic. Context or background information helps readers understand the scope of the essay by providing necessary details about the topic.
The thesis statement at the end of the introduction is a clear, debatable, and specific declaration that previews the main idea and briefly touches on key points. This prepares readers for the subsequent detailed analysis in the body paragraphs, where evidence is thoroughly integrated and central points are developed with clear transitions between ideas.