seonsaengnimi yemuneul sori naeeo ilgeurago haesseoyo.

The teacher told me to read the example sentences aloud.

Breakdown of seonsaengnimi yemuneul sori naeeo ilgeurago haesseoyo.

• ~이: subject particle
• 읽다: to read
• ~을: object particle
• 선생님: teacher

Questions & Answers about seonsaengnimi yemuneul sori naeeo ilgeurago haesseoyo.

Why is 선생님 followed by 이?

이/가 is the subject marker. Here, 선생님이 marks the teacher as the person who gave the instruction.

So the sentence is structured like:

• 선생님이 = the teacher (subject)
• 예문을 = the example sentence(s) (object)
• 소리 내어 읽으라고 했어요 = said/told someone to read aloud

If you used 선생님은, it would sound more like you are setting up the teacher as the topic, possibly with some contrast or background nuance. With 이, the sentence simply identifies who did the telling.

What does 예문을 mean, and what is 을 doing here?

예문 means an example sentence or example text/sentence used for study.

을 is the object marker, showing that 예문 is what the action is being done to. In this sentence, it is what someone is supposed to read.

So:

• 예문 = example sentence
• 을 = object particle

Together, 예문을 읽다 means to read the example sentence.

What does 소리 내어 mean literally?