as

分类：连词/介词

定义

表示’当…时’、‘因为’、‘作为’或’像…一样’。

用法

• 引导时间状语从句(当…时)
• 引导原因状语从句(因为)
• 引导方式状语从句(按照)
• 作介词(作为)

例句

1. As I was looking for it, the inn-keeper came in. (当…时)
2. As it was raining, we stayed at home. (因为)
3. Do as I told you. (按照)
4. He works as a teacher. (作为)

相关术语

• when
• while
• because
• 方式状语从句