谁知道英语演讲的开场白和谢幕词怎么讲啊?我下午要参加英语演讲大赛,2点要到!谁帮我设计一个开场白和谢幕词啊,P.S:1点半之前要!不然时间不够!最好短一些!

good afternoon ladies and gentlemen, it's my honor to stand here giving you a speech. today, i would like to talk about.../my topic today is ...
That's all.Thank you for you attention.

Good Afternoon everyone!(不要用Ladies and gentlemen）。First, I am so pleased to have a presentation here. Today, I am going to talk about.....(直接入正题，英语演讲通常废话和客套话很少，但一定要在开头中阐述你今天演讲有那些内容）
结尾，做完你的conclusion后，一般只需说：Thank you for listening, if you have any question please be free to ask.

Hello everyone!Thank you for giving me this chance to make a speech here.Now I am going to talk about******
That's all.Thanks for listening.

开场白:Hello,good afternoon,everybody.Nice to meet you all here.Now let me introduce myself.My name is###.I'm from *** School.I'm honored to give a speech here.Today,I'm going to talk about XXX(your topic)
谢幕词：That's all.Thanks for listening.

ladies and gentalmen :
Good afternoon!Thank you for giving me the chance .
That's all .Thanks for your listening .