为了减少食物浪费，中国最近开展了光盘行动。假如你是某校的学生-优题课

请根据以下提示，结合你生活中的一个事例，就“自信”这一话题，用英语写一篇短文。
If one has no confidence, there is little possibility that one can achieve anything when faced with hardships.
注意: 1. 无须写标题，不得照抄英语提示语； 2. 除诗歌外，文体不限； 3. 内容必须结合生活中的一个事例； 4. 文中不得透露个人姓名和班级名称； 5. 字数120左右。
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书面表达（20分）
2月4日，星期天上午，你们班同学骑车到学校附近的公园组织了一次环保活动。请根据下列内容写一篇日记并发表你对此次活动的看法。
活动内容一扫除：收集废纸、烟蒂、塑料袋等废弃物
活动内容二宣传：树立标牌、告诉游客要爱护花草树木
活动内容三演讲：向游客宣传：“白色污染”的害处以及保护环境的重要性
你的看法 ……..
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书面表达（满分30分）
假设美国某中学的学生明天来你校访问交流，主题是高中生对文，理科的选择。请你用英语写一篇发言稿，向他们介绍你所做的选择，并说明选择的理由。
注意： 1.开头和结尾已为你写好，不计入总词数；
2.词数120左右； 3.短文中不能出现与本人相关的信息。
参考词汇：文科 arts; 理科: science
Good afternoon, everyone.
Welcome to our school!

Thanks！

There is a growing debate about the most effective way for students to study． Traditionally studying alone was thought to be the best way to ensure good exam results．When studying alone you can focus your mind better than when you are with others．You also have the freedom to choose what topic to study and when, as you don't need file agreement of others．Students that prefer to study alone often say that when they study with their classmates they waste a lot of time because the discussion is often about non-study topics such as television or holidays．
In the last few years, however, more and more students have started studying in groups．There are several reasons many students prefer this method．First, they find that studying is more fun as they can share the experience with others rather than staying in their rooms． In groups, they can discuss the subject together and when something is not understood they can ask each other questions．They can use the knowledge of their classmates to help improve their own knowledge． Finally by discussing the topic they are able to both understand and remember it better．
[写作内容]请以约30个词概括上述短文的主要内容
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写作内容：校学生会为了帮助大家学好电脑，特邀广州大学计算机系王平教授在3月3日星期六下午2点来校做讲座，请根据下面所给的情景说明，写一份书面的通知。
写作要求：请使用5个规范的英语句子描述全部所给的信息内容，注意行文的连贯性。（文章开头及格式已给出。）
1）事宜：关于计算机的用途以及如何利用internet网络进行学习的讲座;
2）讲座人：广州大学计算机系王平教授；
3）地点：图书馆三楼；
4）要求：参加者准备一些自己在电脑学习中过程中遇到的问题,让王教授会后回答。
5）参加对象：电脑爱好者；不要迟到。
Notice
To help students learn more about computers,
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The Students’ Union