【分析】本题要求以竞选学生会主席的面试为语境，撰写英语发言稿，需紧扣思维导图的三个核心模块：个人信息（姓名、年龄、爱好等）、性格与能力（如创造力、勤奋、熟练使用电脑等）、任职计划，结合已给出的开头，适当拓展内容，保证语句通顺、意思连贯，核心是将思维导图要点转化为符合面试场景的连贯英语表达，突出自身适合岗位的优势与规划。
【解析】1. 承接开头，先介绍个人基本信息（姓名、年级、爱好），对应思维导图的“My personal information”模块；2. 阐述自身性格与能力，补充适合学生会主席的特质（如创造力、勤奋、熟练使用电脑，以及外向善于相处等），对应“My personalities & abilities”模块；3. 说明若当选学生会主席的具体计划，如组织特色活动、设立建议箱等，对应“My plans”模块；最后表达任职信心与感谢，完成发言稿。
【答案】I'm Sandy, a 15-year-old Grade 9 student. In my free time, I love reading all kinds of books about history and art, and I also take part in plenty of after-school activities with my classmates.
I think I have many good qualities for this position. I am creative enough to come up with all kinds of new ideas for activities, and I am always hard-working, so I will try my best to finish every task well. What's more, I can use the computer skillfully to make activity posters and organize information easily. I am also outgoing and get on well with all my schoolmates.
If I become the chairperson, I will organize more interesting activities such as the school reading festival and different talent shows for students to show their advantages. I will also set up a suggestion box to listen to what all of you really need. I believe I can do the job well, and I hope you can choose me. Thank you!
【知识点】英语书面表达；应用文写作；思维导图式写作
【点评】该发言稿紧扣题目要求与思维导图要点，内容充实具体，逻辑清晰，语言贴合面试语境，既展现了自身胜任岗位的优势，又明确了任职后的规划，是一篇符合要求的优秀范文。
【难度系数】0.6