［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。
［误］ - How soon will you be ready?
- Two days?
［正］ - How soon will you be ready?
- In two days?
［析］ 此题关键是要根据情景，身临其境，要注意的是对方问了什么，就应答什么。或答了什么就应问什么。 How soon 问的是"还有多久才能作完"，这时要用 in two days， 即在两小时之内即可以作完。如用 How long 提问，则答语可以用 two days。
［误］ - Would you mind if I have some time off?
- I don't mind?
- Monday and Tuesday of next week?
［正］ - Would you mind if I have some time off?
- When exactly?
- Monday and Tuesday of next week?
［析］ 有的对话是复杂的，稍有不慎就有可能选错，而且英语中如选错了答案是不容易找出错来的。 I don't mind 是可以用来回答 Would you mind…这一提问的，但如仔细看一看则会发现我们要选用的不是陈述句而是疑问句。根据下面一句的答语来判定要用 when exactly? 什么时间，这样才能与下句中具体的时间相符合。
［误］ Suppose your name is Tom? The phone rings and you pick it up? The first word you say will probably be "Who are you?"
［正］ Suppose your name is Tom? The phone rings and you pick it up? The first word you say will probably be "Hello? This is Tom speaking?"
［析］ 在英语学习中，习惯用法实际上在某种情况，或某种意义上讲比语法更为重要。如果只从句子的角度上去分析，它们可能都是对的。比如，当你拿起电话时，如果你 想知道对方是谁，可以问"Who's that(speaking)?"但不要讲"Who are you?"如果你想先介绍一下自己可以讲"This is ×××× speaking"而不要讲"I'm ××××"也不要讲"My name is ×××××．" 就语法而论，"Who are you?" "I'm ××××?""My name is ×××××?"并不错，也是英语中可用的句子，但就打电话这一场合，就不宜用了。
［误］ - Do you think it's going to rain over the weekend?
- I don't hope so?
［正］ - Do you think it's going to rain over the weekend?
- I hope not?
［析］ 由于初学者对实际英语口语中表达感情意愿的答语不熟悉，如在肯定答语中 I think so? I hope so? I believe so? 是相同的，但在否定句中却常用 I don't think so? 但I don't believe so? 和 I don't hope so? 则意为：我不信此事和我不希望此事发生。而 I believe not? 和 I hope not? 则为：我想可能不会发生吧!
［误］ - Is anybody there?
- No， Bob and Tom have asked for leave?
［正］ - Is everybody there?
- No， Bob and Tom have asked for leave?
［析］ 许多学生在写作和选择答语或问句时总要语法在前，而不是习惯用语在先。所以总是要拘泥疑问句中的不定代词，用 anybody。 但是Is anybody there? 在英语中为：这里有人吗?而Is everybody there?为：全都到齐了吗?所以首先要考虑的是其答语。 No， Bob and Tom have asked for leave?
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