根據上述結構，給剛剛列舉的三道題目中的第一題列出下列提綱：

       原創范例（21題）：

       Introduction: A few reasons are thought to contribute to such phenomenon of a longer life expectancy than before.

       Main body 1: First of all, availability of basic health care makes people live longer.

       eg. More doctors and medicine for common diseases readily available

       Main body 2: Moreover, advances in medicine enable people to live a longer life.

       eg. development of vaccines against some diseases and flus to prolong patients' lives.

       Main body 3: Last but not least, increasing awareness of health makes people live longer.

       eg. regular exercise and change of health-related habits.

       原創范例（168題）：

       Introduction: Several factors are thought to be the essential to lead to this phenomenon that an increasing number of students choose to further their education abroad instead of at home, three of which are most significant.

       Main body 1: First of all, studying abroad enables the students to pursue a program that is not available in their home country.

       eg. learning US accounting system

       Main body 2: Moreover, studying overseas is a good way to enhance their competitive edge in the future job market.

       eg. developing a western critical mind

       Main body 3: Last but not least, students can have access to a new language via pursuing education in a foreign country.

       eg. learning English in the USA

       通過上述結構的介紹，考生可以自行擴展第三題，模仿原創范例，寫一個提綱。從上面提綱我們不難發現，在寫此類文章過程中，要使文章結構上有邏輯的話，必須掌握表示列舉關系和因果關系的連詞，先列舉如下:

       列舉Enumeration：

       第一項，首先： in the first place, firstly, initially, first of all, to begin with, to start with, first and foremost

       第二項，此外： second, secondly, in the second place, also, besides, in addition, moreover, furthermore

       第三項，最后： third, thirdly, in the third place, last but not least, finally, eventually

       因果Cause and effect：

       原因： because, as, since, for, because of, due to, on account of, as a result of, stemming from

       結果： as a result, consequently, therefore, thus, hence

       只有在掌握了表示此類關系的連詞的基礎上，考生才能自如地運用之前所列舉的結構，連貫邏輯的表達。值得一提的是，在最近的考題中，描述解釋型的題目出現的幾率相對較低。但考生在考前還是需要全面復習，掌握此種問題模式和對應的文章結構，才能在考試中胸有成竹。下一系列中，朗閣海外考試研究中心將為大家介紹新托福獨立寫作目前最常出現的問題模式：二選一型，并為大家介紹其對應的文章結構。

（來源：無憂雅思網）