本影片所學文法為被動句-Passive voice,透過家人給Tom的生日驚喜為情境帶入課程,說明如何由一般的主詞+動詞+受詞的句型,如Someone opened the door.轉換為被動句的句型架構:接受動作者+(be + p.p.)+做動作者,例如The door was opened by someone.。以及解說使用被動句敘述的原因為不知道或是不強調動作者,所以經常省略後方做動作者,因此被動句的架構會變為句型一:主詞+(be V+ p.p.)+by someone(不重要常省略),例如English is spoken around the world./The dogs are fed three times a day./The door wasn't opened by Tom.。句型二為助動詞的被動句,架構為主詞(接受動作者)+auxiliary(助動詞)+be V+ p.p.,例如The report will be finished by Friday./The show can be watched on YouTube./The door shouldn't be opened right now.第三種句型為完成式的被動句,架構為主詞(接受動作者)+have/has+been+p.p.(完成式+被動),例如The snack has been sold for 50 years./The buildings have been built since 2010.。
修改日期:2026-01-22