大型作文的 Introduction Paragraph 有四個結構：hook, background, thesis, mapping. (Ref: https://www.scribbr.com/academic-essay/introduction)。而在托福雅思多益等小品文寫作時，則僅需要專注在 background + thesis。命題句 Thesis statement = Topic + Conclusion + Premises 其中，透過 Specific Topic + Debatable Conclusion 可以強化命題。所謂 debatable 指的是，如果該結論過於簡單或過於個人化，那就沒有人想去「辯論」那個話題 thesis 也就因此相當弱。此外，thesis statement 最多兩句且句子愈短自信愈強。
從 critical thinking 開始
筆者認為 Thesis Statement 本身是一個 argument 因此使用 conclusion 與 premise 這兩個字來描述命題句。這麼做更有利於您之後學習 critical thinking 的概念，以求進一步強化個人在寫作以及各種場合中的思辨能力。上方影片為連集，強烈建議讀者能全部看完。
Templates for TOEFL Integrated Writing
在托福整合題型寫作中，一開始應簡述文章內容做為 background 接著點出講者的 Thesis，以下範例詳細題目及音檔請參考教學網站 → Living On the Moon ←
Both the article and the lecture are about the prospect of establishing a human settlement on the moon. The article describes three reasons why it would be extremely difficult. The lecturer challenges the author of the article. He suggests solutions to each of the three problems.
Both the reading and the lecture are about the difficulties of establishing a human settlement on the moon. While the article puts forth three obstacles that makes it unattainable now, the lecturer challenges them all.
The reading and the lecture are about the possibility of starting colonies on asteroids. The author feels that this is a good idea, due to scientific benefits, economic benefits and the long-term survival of humans. The lecturer does not believe that the author’s claims are correct.