英语学习：教你如何在头15秒用英语演示吸引观众的注意力如何做一个引人入胜的英语演示（presentation）？It takes an audience about ...
It takes an audience about 15 seconds (at most) to decide whether your presentation is worth their attention. Fritter away those fifteen seconds and your audience will either mentally check out or pull out their phones to start texting.
Here's how to begin a presentation so that your audience really sits up and takes notice.
1. Open with a startling and relevant fact.
To get an audience focused on what you're going to tell them, you must first break through the "mental noise" that causes their attention to waver. This is best accomplished by a slide showing a fact that is new to the audience and important enough to capture their attention. Build the rest of your presentation to answer the business questions that this initial fact has raised in their minds.
2. Have somebody else introduce you.
Don't waste time explaining who you are and why you're there. Write a short (100 word) bio and a short statement (50 words) of what you'll be talking about. If you were invited to speak, have whoever invited you read this information to the audience. If you called the meeting yourself, put that information in the invite.
3. Do not tell a "warm-up" joke.
I have no idea how the "warm-up joke" became part of conventional business wisdom. Most of the time, the "joke" consists a weak attempt at situational humor (like "why are these meetings always on Monday?") that merely communicates that you're nervous and unsure of yourself. The rest of the time, the "joke" is a long story with an obvious punch line that tries everyone's patience.
4. Do not begin with "background."
Many presentations begin with a corporate background that's intended to build credibility. (Example: "Our company has 100 years of expertise!") The problem here is that at the start of a presentation nobody cares about your company. You're asking them to translate your background information into something that's meaningful to them and their business. Why should they bother?