[摘要]一些英語教師積極鼓勵學生使用主動語態，而另一些教師則允許學生使用被動語態。主動語態和被動語態的區別是什麼？這些區別為什麼如此重要？被動語態在科學論文中很常見。
Some English teachers actively encourage their students to depend on active voice, while others allow their students to depend on passive voice. What’s the difference, and why is the difference important
一些英語(精品課)教師積極鼓勵學生使用主動語態，而另一些教師則允許學生使用被動語態。主動語態和被動語態的區別是什麼？這些區別為什麼如此重要？
Active voice appears in sentences such as, 「The detective discovered that the manager was a thief.」 Passive voice appears in sentences such as, 「It was discovered that the manager was a thief.」
使用主動語態的句子例如「The detective discovered that the manager was a thief.」（偵探發現經理是小偷），而使用被動語態的句子則是「It was discovered that the manager was a thief.」（經理被發現是小偷）。
Why would someone use passive voice in a sentence like that? Because they want to call the manager a thief, but are afraid to say why!
為什麼有人會在這種句子裡使用被動語態？因為他們想說經理是小偷，但是害怕說出原因！
Passive voice is common in scientific papers, because it lets the writers avoid using the words
被動語態在科學論文中很常見，因為它可以讓作者避免使用I、me等詞來表明的想法的出處。這就是為什麼有些教師認為被動語態聽起來更文雅。儘管如此，使用被動語態的句子往往含義更不明確。它也許可以（也許不能）從你的老師那裡矇混過關，但是走向社會後，當人們想說點什麼時，就算科學家們也沒有含糊不清的權利。
In business writing, sentences make the most sense when the subject comes first, followed by what the subject is doing. So make sure passive writing is not reducing the efficiency of your words.
在商業寫作中，主語開頭，後面接主語的動作，這樣的句子最合乎常理。因此，千萬別讓被動語態削弱文章的效果。