3. __4__

　　Statistics, figures, medical information, historical accounts, and similar information should all be checked and it will save your credibility as an authority on the subject you are talking about.

　　4. Add humor.

　　Don't engage your audience in a dragging soliloquy (独白). __5__ Humor will interest your audience. Of course, make sure the elements in your lecture are in line with your main topic and are not nonsense, racial, and offensive jokes.

　　A. Check your lecture for accuracy.

　　B. Giving a lecture is challenging, though.

　　C. If necessary, provide your contact information, such as an email address or blog site.

　　D. Instead, make your audience smile, or burst into laughter at certain points in your discussion.

　　E. To make it easier, consider what will interest your audience.

　　F. It should summarize your whole talk in one sentence.

　　G. Don't be afraid of exploring the topic, as this will allow you to discover other points that need discussion.

　　答案与解析　

　　语篇解读　本文是一篇议论文。如何准备一场演讲？要确保演讲有趣、充满智慧，且观众可以从中获得有价值的见解，所以好好准备演讲很重要。

　　1．B　后面说“你必须确保演讲有趣且充满智慧，且观众从中可以获得有价值的见解”，故B项“但是，演讲是很有挑战性的”符合语境。

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