presentation開場白（一）
Morning everyone! Today we’ll have a talk about dream and success in America.
Everybody has his or her own dream and standard of being a successful man, but they are not actually the same because of different background and life experience and sex.
There we have made an investigation about the topic. Let’s have a look at the video.
（Video）
OK! It looks as though different people have different opinion about being a successful man, and maybe they are always dreaming of achieving success at an early age.
The American Dream is a book about American dream written by a famous journalist Dan Rather, published in 2002. He provided many stories of ordinary men and women accomplishing the extraordinary.
You know America is an integrated country with a history only more than 200 years. After the continent was discovered by Europe, people all over the world came here to search for their own dream. American culture lay emphasize on individuals” value: self first, personal need first. So pursue of individual benefit and enjoyment, emphasize on achieving individual value by self-strive and self-design was highly respected. That is to say they usually have an ambition or desire to gain something they need. If they gain this, they would consider him as a successful man. Maybe that’s just what we call “American dream”。
The phrase “American dream” generally refers to hopes one has for his own well-being（福利） in America. It usually means struggling to achieve their own desires and ambitions, materially or mentally or both. It is not necessarily a selfish notion（概念）。 Everyone has right to pursuit his or her dream. For some, the American dream is simply to own a home or own much money. Some wish to learn to read or run their own business. There are also those who want to get achievements in the career he or she is interested in, such as becoming a pop star or a successful sports man, just as Michel Jackson or Michel Jordan.
Having a dream is no doubt good to a person. In America, to make ones’ dream come true is to do efforts of their own. A dream motivates people to do efforts and exploit all his potential, and make the most of what they possess. So a dream is always a guiding star of one’s way to success, if only you do your effort in a right and legal way.
OK! Let’s see the story about John. Maybe it can indicate something. Welcome three of my friends to give the story!
presentation開場白（二）
1. Right, let’s get started.
2. Let me introduce myself.
3. I’ve divided my presentation into three main parts.
4. Just to give you a brief overview.
5. I’ll be saying more about this in a minute.
6. I’m sure the implications of this are clear to all of us.
7. There’s an important point to be made here.
8. OK, let’s move on. （go on to make your next point）
9. As you can see, the figures speak for themselves.
10. To go back to what I was saying earlier.
11. Are there any questions you’d like to ask at this point
12. I’d like to look at this in more detail.
13. Let’s put this into perspective. （to explain it this way）
14. Perhaps I should expand on that a little.
15. To digress for a moment （to depart from your plan）
16. So, to sum up
17. That brings me to the end of my talk.
18. Thank you. I’m sure you all have lots of questions.