primary supporting sentences
主要支撐句.是指在一篇文章中,主題句之后,用以解釋你的主題句,闡述并支撐你的觀點(diǎn)的主要句子.
例如在下面這段文章中：
There are three reasons why I want to learn English.
One reason is that English has become an international language.
It is now used by most international companies,including the company where I work,for business communication.
Another reason why I want to learn English is so that I can travel to English-speaking countries.
The United States,England,Australia and many other countries all use English as their primary language.
Finally,I want to learn English because I plan to move to the U.S.in the future.
I will become a manager for my company soon.For those reasons,I want to learn English.
There are three reasons why I want to learn English.即為主題句.而其后的,One reason is.,another reason ...（也就是我分出的每段的第一句話）便是primary supporting sentences了.
在閱讀理解時(shí),抓住主題句和主要支撐句是理解文章意思和答題的關(guān)鍵；而在寫作中,則要注意自己支撐句的措詞和語(yǔ)法,因?yàn)檫@是老師評(píng)分的重點(diǎn)檢查部分.