[误] What's that man?

　　He is Mike

　　[正] What's that man?

　　He is a teacher

　　[正] Who's that man?

　　He is Mike (He is Mike's father)

　　[析] 由 what 提问是问的职业，由 who 提问问的是姓名或身份。

　　[误] - How much are they?

　　- Half a kilo， please

　　[正] - How many bananas do you want?

　　- Half a kilo Please

　　[析] How much are they? 问的是价格而不是实际物品的多少。

　　[误] I'm sorry， but is this the way to the park?

　　[正] Excuse me， but is this the way to the park?

　　[析] I'm sorry 是对已经做错了的事向对方道歉时的开始语。而 Excuse me 是在打扰对方之前表达歉意的话。

　　[误] - Have a good time tonight!

　　- You are the same

　　[正] - Have a good time tonight!

　　- The same to you

　　[析] The same to you 是表达我也祝您有个愉快的夜晚，它是美语中的习惯用法。

　　[误] - What's the problem?

　　- I've got a headache

　　[正] What's wrong with you?

　　I've got a headache

　　[析] What's wrong with you? 是询问对方身体状态如何，而 What's the problem?是问对方遇到了什么麻烦。

　　[误] - Now， I'm back Can I play?

　　- Perhaps You'd better do your homework first

　　[正] - Now， I'm back Can I play?

　　- I'm afraid not You'd better do your homework first

　　[析] Perhaps 是表示对一种拿不准的事态的推论，如： Am I right? Perhaps而 I'm afraid not 则表达一种不同意的态度。 be afraid 的几种用法有：

　　I'm afraid that you are right

　　其后直接加宾语从句。

　　- Will you come to my birthday party?

　　- I'm afraid not I have to go to see my father He is in hospital

　　其后+not，表示否定。

　　- Sorry， I don't want to go there alone， I'm afraid of the dog

　　其后+名词，表示对某人，某物的害怕。

　　Mary is afraid of making mistakes in the exam

　　其后+ of + 动名词，表示害怕做某事。

　　Mary is afraid to see the teacher because she didn't do well in the exam

　　其后+ 不定式，表示不敢去做某事。