朗读下面短文，体会、领悟加黑部分是哪类非谓语动词，在句中作什么成分。
Good afternoon, Ladies and gentlemen. It is a great honor for me to introduce① this English speech contest. As we all know, to master② a foreign language is very important for us. Taking part in③ an English speech contest is a helpful way to learn④ English. Everyone wants to show⑤ their best. When we have been preparing for it, we can improve our listening and speaking⑥ ability, developing⑦ a good habit of learning⑧ English.
In the process of the competition, you should pay attention to the rules made⑨ by us. First, you should make your voice heard⑩ clearly by everyone, so reading aloud? is very necessary. Second, you should try your best to express? yourself in English fluently. Finally, you should finish your speech in five minutes.
I am sure the English speech competition will be a great success and the audience will feel satisfied? with our performance. Thank you!
