内容简介

单词 “while” 既可以作连词，也可以作名词使用。作连词时，“while” 有 “在…的时候”、“但是” 和 “虽然” 的意思；作名词时，它可以指 “一小段时间”。看视频，跟主持人 Sam 学习单词 “while” 的五个常见用法。

用法总结

1. “While” 作连词时，可以表示 “在…的时候，与…同时”。注意，“while” 可以放在句首使用，也可以在句中使用，但后者的句子中不使用逗号。

• While we were sleeping, it snowed! 
• It snowed while we were sleeping!

• While he was cooking, a parcel arrived.
• A parcel arrived while he was cooking.

2. “While” 作连词时，可以表示 “但是，然而”。

• One of the twins is shy, while the other is outgoing.

• It took me an hour to solve this maths problem, while it took her only five minutes!

3. “While” 和 “whilst” 作连词时，可以表示 “虽然，尽管”，这是一个相对正式的用法，相当于 “although”。

• While I know that sugar is bad for me, I can never say no to dessert!

• While I understand that is your opinion, I'm afraid I do not agree.

4. “While” 作名词时，指 “一会儿，一段时间”。

• It's been a while since we talked.

• Are you looking for Jessica? I saw her a short while ago. 

5. 表达 “worth your while” 的意思是 “值得你下功夫去做，对你有帮助”。

• Even though we only had a short while together, we hope this lesson was worth your while.

• Check out this article about how to keep a healthy diet – I promise it will be worth your while.