(小編註：建議在看完本篇之後在去看文章末的延伸學習筆記。)

基本架構

壹、主旨句（Topic sentence）

貳、發展句（Supporting sentence）

參、結論句（Concluding sentence）

✨ Explain

         Credit cards have a lot of advantages. (Topic_sentence) First of all, credit cards are convenient because you don't have to carry a lot of cash in your pocket. In addition, credit cards are very helpful in emergencies. Finally, you can become a batter money manager as you learn to use credit cards responsibly. As you can see, there are many advantages of using credit cards. (concluding_sentence)

(小編註：如果看到奇怪的空格，將手機打橫即可解決。)

Note：

就以上面的短文為例，首先看到就是開頭畫線的topic sentence，而這句topic sentence是一句非常優良的topic sentence，因為我們可以從這句topic sentence推敲出文章後面可能會講什麼，就這篇短文而言我們可以猜出接下來文章可能是要說credit cards擁有哪些advantages。

而這篇短文在topic sentence和concluding sentence 之間共夾了三句的supporting sentence，分別為：

⑴credit crads are convenient because you don't have to carry a lot of money.

⑵credit cards are very helpful in emergencies.

⑶you can become a better money manager as you learn to use credit cards responsibly.

這三句的supporting sentence皆有一個共通點，那就是全部都是承接topic sentence而延伸出來的！

到這裡先等等！每一句的supporting sentence絕對不可能頭接頭尾接尾，這樣很奇怪，所以一定會有一個transition words(又可說成key words)來做連接，以這篇短文為例，共用了以下的三個transition words來做連接：

⑴Fist of all,

⑵In addition,

⑶Finally,

其位置各在每一個的supporting sentence前面，當然transition words不只這三個，還有or、and、such as、on the other hand、for example、for instance…等等，都是作文中比較常用的transition words。

而最後的concluding sentence在前面也用了一個transition word連接，最後的concluding sentence是要能總結supporting sentence以及呼應topic sentence才是好的concluding sentence，以這篇短文的concluding sentence為例，它既總結了supporting sentence所舉出的例子(using credit cards)又呼應了topic sentence所下的主題(have a lot of advantages)。

延伸學習（預計更新）

①如何撰寫topic sentence（主旨句）？

②如何撰寫supporting sentence（發展句）？

③如何撰寫concluding sentence（結論句）？

④【英文作文賞析】說明使用塑膠製品對環境及人類傷害
The author is Fanny_Chen