语气很重要，是在聊天而非背课文： Well, it's my turn~~ （正式语前缓解紧张用） Good morning/afternoon ladies and gentlemen, it's my pleasure to show you my homework! 如果想体现难度，插播一句：Pls be free to let me know if there's any doubt, I'll appreciate it! Now, let's begin with ... （比如第一页 the first page） ... 结束语： That's all! Thank you very much for your attention! Thank you everybody! 语气很重要，是在聊天而非背课文： Well, it's my turn~~ （正式语前缓解紧张用） Good morning/afternoon ladies and gentlemen, it's my pleasure to show you my homework! 如果想体现难度，插播一句：Pls be free to let me know if there's any doubt, I'll appreciate it! Now, let's begin with ... （比如第一页 the first page） ... 结束语： That's all! Thank you very much for your attention! Thank you everybody!