2021年1-4月 雅思口语 Part 2 Topic 5 改变看法 Describe a time when you changed your opinion

Describe a time when you changed your opinion
You should say:
When it was
What the original opinion was
Why you changed it
And explain how you felt about it

Once I was not too fond of mathematical modeling, as I thought it was useless and boring . Compared with numbers and formulas, I got more excited about history; science, languages, or other subjects that are easier to connect to personally. And my teachers used to force us to memorize lots of complicated formulas without telling us how to apply them in real life. Studying it was always a suffering journey for me.

However; last month I changed my opinion about it after reading a book called ‘An Introduction to Mathematical Modeling’. My professor David recommended the book, and it changes my stereotypes on mathematical modeling by showing me the power and beauty of models. It introduces various mathematical methods and shows rich examples of how they are applied to real industries, such as Finance.

After that, I realized that mathematical modeling is very important, and it is the key to innovations in most science, technology; engineering, and mathematics-related fields. Besides, I started to feel that it’s very interesting, as it helps us to manipulate the world around us. For example, we can make assumptions, choose mathematical approaches, and assess the solution for usefulness and accuracy. Then we can rework and adjust the model until it provides an accurate and predictive result of the situation.

故事简介：曾经我不是很喜欢数学建模，因为我认为它是无用的和无聊的。与数字和公式相比，我对历史、科学、 语言或其他更容易与个人联系的学科更感兴趣。我的老师曾经让我们记住很多复杂的公式，却没有告诉我们如何在 现实生活中应用它们。对我来说一直是一段痛苦的旅程。

然而，上个月，在阅读了一本叫做《数学建模导论》的书 后，我改变了对它的看法。我的教授大卫推荐了这本书，它改变了我对数学建模的刻板印象，向我展示了模型的力 量和美丽。它介绍了各种数学建模方法，并展示了丰富的例子，如何应用于真实的行业，如金融。

读完之后，我意识到数学建模是非常重要的，它是大多数科学、技术、工程和数学相关领域创新的关键。此外，我开始觉得它很有 趣，因为它帮助我们操纵我们周围的世界。例如，我们可以做出假设，选择数学方法，并评估解决方案的有效性和 准确性。然后我们可以重新工作和调整模型，直到它提供了一个准确的和可预测的结果的情况。