英语问题·if和whetherWhen you buy new clothes,you should look at them carefully to make sure ____ they need to be dry-cleaned.A.ifB.whether答案给的是B,为什么不能用if呢?
问题描述：
英语问题·if和whether
When you buy new clothes,you should look at them carefully to make sure ____ they need to be dry-cleaned.
A.if
B.whether
答案给的是B,为什么不能用if呢?
答
B 从中文意思上讲,用两者中的一个没有任何错误.
但在if会引起歧义时,只用whether.
如果用if,上句可以理解为：买新衣服的时候,如果这些衣服需要干洗的话,你就得看仔细了.
而用whether就没问题了.