一篇作文的題目翻譯成“命題”更加切題，同樣一個命題，在不同的考生眼裡可以develop 出不同的 thesis statement ( 中心論點)，每一篇託福獨立性寫作必須有一箇中心論點，而且只有一箇中心論點。通常，一篇獨立性寫作的`中心論點分解成三個分論點：general idea (分論點)，由三個段落去論述;在段落中，分論點的稱呼是 topic sentence (主題句);這三個包含有主題句的段落合稱為 body (正文)。正文中的三個分論點又由另外一個重要的作文要素 supporting details ( 支撐細節)去闡述。這便是託福獨立性寫作的核心三要素：中心論點，分論點和支撐細節。
◎ 以下是用 outline (大綱)的“作文”方法來展示上面這道作文題目的三個寫作核心要素：
Thesis statement ( 中心論點)：I learned a lot in introduction to ART History, and it was inspiring.
正文段 1 Topic sentence Art history teaches you about more than art.
Supporting details History, religion, literature, mythology
‚ I didn’t learn these things in my engineering classes.
正文段 2 Topic sentence I had a very good teacher.
Supporting details Experienced and well known
‚ Enthusiastic and inspiring
正文段 3 Topic sentence I learned about the history of engineering.
Supporting details Buildings and bridges
‚ City planning
◎ 以下是一篇根據上面題目解析過程而寫成的高分範文，供參考。
Even though I am an engineer, I have to say that introduction to Art History is the most important class I have ever taken. In this class I had the opportunity to learn new things, not only about art, but about other areas as well. I had a teacher who inspired me. And, believe it or not, it was important to my career as an engineer.
The course not only had interesting content but also a very inspiring teacher. My art history professor had a lot of enthusiasm for her subject, and she was able to convey that enthusiasm to her students. Even though I am in a different field, this professor was a sort of role model for me. It is always inspiring to see people who love their work, no matter what it is. As I pursue my career as an engineer, I often think of this professor and hope that I bring the same enthusiasm to my own work.
Art History should be a required course for everyone because it teachers you about so many things. I learned not only about art,but also about history, religion, literature, and mythology. These are subjects I didn’t learn about in my engineering classes, so it was a wonderful opportunity for me.
Studying art history taught me some things about the history of engineering. In old paintings, I saw how buildings and bridges were built in the past. I saw how cities were planned. I realized that I could learn about my own field in different ways.
I learned a lot of things in my art history class. I learned about art ,about engineering, and about other things I hadn’t imagined. Both the subject and the teacher inspired me to expand my mind. I an very glad that I took this class.
