. . . . .Unit 1C1. The younger generation should continue to sustain and develop our fine traditions and long-standing culture. 2. In the course of preparing ones speech, one should be clearly aware of how one could make effective use of statistics and examples to bolster ones point of view. 3. An impromptu speech is one of the speaking skills that college students should learn and develop through practice. 4. By using simile and metaphor, you can make your language more vivid and more attractive to your audience. 5. The proper examples you cite might help reinforce the impression on your listeners and make your viewpoints more convincing. 6. When you are speaking, you should choose common and easy words and at the same time avoid clutter in your speech.7. When you write a paper, citing the views from some experts is a good way to make your ideas more credible.8. A good method of delivering a speech will improve its quality and will help convey the speakers ideas clearly and interestingly.9. You should not blindly use a word that your are not sure about, and it you are not sure, look up the word in a dictionary.10. Your language should adapt to the particular occasion and audience. If your language is appropriate in all respects, your speech is successful. 英译汉：发言提纲是有效发言的基础。通过写发言提纲，你可以确保你的想法是关联的，你的思路从一点谈到另一点，你的讲话结构是连贯的，通常准备演讲你可以采用两种提纲方式：详细准备提纲和简单发言提纲。在准备提纲中，应该写出你的特定目的及中心思想，并以连贯的方式确定主要观点和次要观点。发言提纲应该由简要的提要组成，这些提要在你讲话时能够给你一些帮助。发言提纲还应包括帮助你记忆的重点词或重点短语。在写发言提纲时，可采用准备提纲的模式，尽可能使你的发言提纲简要，同时，要确保提纲清晰、易于辨认。D（p17）汉译英：当你发表学术演讲时，首先要做好充分的准备；其次，你演讲的主要观点要明确，层次要清楚。演讲时，语速不要过快，语言要清晰。不要总是在读你准备好的稿子。最后，你应该经常看一下你的听众。这样，一方面你对你的听众表示尊重，另一方面，你可以更顺利地进行你的演讲。Before you deliver an academic speech, you should, first of al, get well prepared for it. Then, you should make your major points clear in your speech, and your speech should be well organized. When speaking, you should not speak too fast, and your language should be explicit. Dont always read the notes you prepared beforehand. From time to time, you should look at your audience. On one hand, you can show your respect to your audience, and on the other hand, you will be able to go on with your speech more smoothly. Section C Writing Practice Task 1Good morning, distinguished guests, ladies and gentlemen,It is my great pleasure on behalf of the university to extend our warm welcome to all the conference participants.It is a special honor for us to be holding the International Symposium on Computer Science at our university. Among the participants are well-known professors, scientists and scholars in this field. I believe that this symposium will offer a good opportunity for you to exchange your ideas, share your latest research achievements and further cooperation in the field of computer science as well. Also, to some extent, this symposium will help us to develop computer science in your university and help push forward our research in this field. Finally, I hope the symposium will be a great success and I hope everyone will enjoy their stay here. Thank you!Task 3Ladies and gentlemen,Happy New Year to everybody!I am very happy to se all of you here to celebrate the arrival of the new year. In particular, I am delighted to have so many foreign professors, teachers and friends with us this evening. Last year, with the joint efforts of all the faculty members, we made some impressive achievements in both research and teaching. Some of our research and teaching programs have won awards at he national and provincial levels. We certainly owe these achievements to our colleagues and our foreign friends here. Id like to take this opportunity to express my thanks to you for what you have done for our university. Also, Id like to wish everyone good health and success in he new year. Now let me propose a toast. Happy New Year！Unit 2C1. Energy use should benefit global sustainability so that it can contribute to long-term human well-being. 2. Today, this consensus has given way to a variety of family styles as a result of people living longer, marrying later, and divorcing more. 3. Much of the current research entails close collaboration with industry, which leads to a profitable exchange of personnel and ideas. 4. If we cannot pin down exactly what we are supposed to be managing, how can we manage it? 5. The magnitude of urban migration in recent years is evidence of more disturbing trends: the expanding gap between rich and poor, rapid population growth and increasing environmental degradation. 6. The students perceived that the toxicity testing of an insecticide is on a par with that of a cosmetic. 7. This presentation describes a large set of plausible goals, at least one of which should be achieved within years. 8. The practice of a strict environmental evaluation and a regular monitoring system is cen