灵鹊做题网if 与whether 区别 用法及例句等等
来源：学生作业帮 编辑：灵鹊做题网作业帮 分类：英语作业 时间：2024/05/06 23:03:24
if 与whether 区别 用法及例句等等
1 在动词不定式之前只能用whether .如:
例8 I can't decide whether to stay.我不能决定是否留下.
2 在whether …… or not 的固定搭配中.如:
例9 I want to know whether it's good news or not .我想知道是否是好消息.
3 在介词后,只能用whether.如:
例10 His father is worried about whether he lose his work .他的父亲担心是否会失去工作.
4宾语从句放在句首表示强调时,只能用whether .如:
例11 Whether they can finish the work on time is still a problem .他们是否能准时完成这项工作还是个问题.
5用if会引起歧义时,只用whether.如:
例12 Could you tell me if you know the answe
例8 I can't decide whether to stay.我不能决定是否留下.
2 在whether …… or not 的固定搭配中.如:
例9 I want to know whether it's good news or not .我想知道是否是好消息.
3 在介词后,只能用whether.如:
例10 His father is worried about whether he lose his work .他的父亲担心是否会失去工作.
4宾语从句放在句首表示强调时,只能用whether .如:
例11 Whether they can finish the work on time is still a problem .他们是否能准时完成这项工作还是个问题.
5用if会引起歧义时,只用whether.如:
例12 Could you tell me if you know the answe