请先阅读下面短文，掌握其大意，然后根据短文内容从下面方框内的七个选项中，选择五个还原到文中，使短文意思通顺、结构完整。
You have been thinking about it all week. It kept you awake last night. Now, as you walk to the front of the class, your throat is dry and your stomach feels funny. 81. F However, by making a few small preparations and rehearsing (预演) carefully, you too can be a public speaking star.
82. D Being excited about your topic is necessary for all the good speeches, so it's important to choose carefully. If you enjoy your topic, your audience (观众) will, too. Even if you are given a topic, try to find something about it that is exciting or funny.
Next, do some research. Don't just research your topic. 83. B If you can, study video of a great speaker to see how they move, speak, and pause (停顿). Copying their style will help you to write a great speech.
After researching, it's time to write your speech. During this stage, think of your audience all the time. 84. C It helps you relax if you know that your audience is enjoying your speech.
Finally, rehearse. You really need to rehearse a lot. Measure your speech with a watch, and practice in front of a mirror (镜子). 85. G If you have followed all these steps, you should be ready for your audience. Good luck!
A．You are a very successful speaker．
B．Research some great speakers as well．
C．Entertaining your audience is important．
D．Start by choosing a topic that you are interested in．
E．Research is very important for writing a great speech．
F．Many students find it difficult to give a public speech．
G．You can check your hand movement and facial expression．
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解析：文章体裁为说明文。文章内容是帮助中学生如何准备一篇演讲的流程。
【小题1】此句讲的是大部分学生发现做公众性演讲很难。
【小题2】后面讲到要做好的演讲，演讲的题目很重要，所以先要选一个你非常感兴趣的题目。
【小题3】前面讲的是为自己的话题搜集相关资料，后面讲的是搜集一些成功演说家、演讲家的视频。B和E都和搜寻有关，B选项更能在文章中起到承上启下的作用。
【小题4】诙谐幽默的语言让听众愉悦也是很重要的。
【小题5】该段讲的是你在最后演讲前要站在镜子前面演练一遍。