学习英语时,宾语从句是重要的知识点,尤其是when引导的宾语从句。when可以放在主句或从句中,用于表达事件发生的时间。例如,"I asked her when she would arrive." 或 "I will call you when I finish my work." 掌握when引导宾语从句的使用,需要注意语序和句子的连贯性。
当when用来引导宾语从句时,它可以放在主句或从句中。在主句中,我们可以使用动词ask、know、wonder、consider等词来引导从句。
例如:
- I asked her when she would arrive.
- Do you know when the next train will come?
- I wonder when he will finish his work.
- Have you considered when you will take your vacation?
在以上这些句子中,when引导了一个时间状语从句,来表达一个事件发生的时间。
当when放在从句中时,我们可以使用以下几个结构:
- When + 主语 + 谓语
- 主语 + 谓语 + when
例如:
- When I arrived at the airport, the flight had already taken off.
- I will call you when I finish my work.
- She always takes a walk in the park when she feels stressed.
- He was sleeping when the phone rang.
在这些句子中,when引导了一个宾语从句,用来表达一个事件的发生。