Final answer:
In a speech or essay, using 'then' and 'now' statements and opening with an anecdote are effective rhetorical techniques for crafting an opening statement; these can establish contrast, engage the audience, and introduce the thesis.
Step-by-step explanation:
In crafting an effective opening statement for a speech or essay, a candidate could employ various rhetorical techniques. One such technique is the use of “then” and “now” statements to establish a contrast and showcase progress or change over time. This approach can create a compelling narrative and highlight the significance of the candidate's message or position. Another effective strategy is to open with an anecdote, which can engage the audience and lead into the thesis statement. This anecdote should be relevant and set the stage for the argument or analysis that will follow. Regardless of the technique chosen, maintaining a coherent and professional tone throughout is crucial, whether it be a professional, factual tone or a personal, upbeat tone, depending on the context and audience. Understanding and effectively utilizing these techniques can greatly enhance the persuasive power of a candidate's opening statement.