☆when问的是具体时间，所以不能和完成时连用。
(×)When have you been here?
(○)How long have you been here?
你呆在这里有多久了?
(○)When did you come here?
你什么时候来这里的?
2. where引导的疑问句：询问地点、场所
Where do you live?你住在哪儿?
(I live in)Beijing.(可以简略回答出地点)
我住在北京。
Where are you going?你准备去什么地方?
I am going to Japan.我准备去日本。
3.why引导的疑问句：询问原因
它的回答只能用because引导的原因状语从句。
Why are you late?你为什么迟到?
Because I met the accident.
因为我遇上车祸了。
Why didn't you see the movie?
Why did you not see the movie?
你为什么不去看那部电影?
Because I had seen it before.
因为我已经看过了。
4.how引导的疑问句：可分为两类
a."How…?"how可单独地置于疑问句的句首。
询问如何地做某事即做某事的方法、手段及健康、天气……
How do you go to school?(问方式)
I go to school by bus.我坐公共汽车。
How are you?(问健康)你身体怎样?
I'm fine. Thank you!我很好。谢谢你。
How is the weather today?(问天气)
今天天气如何?
It's cloudy.今天多云。
b：How +形容词(副词)
1how often 多久一次
How often does Bob watch TV?
2how much多少，问价格，重量
How much is the book?
3 how many多少问可数名词的数量
How many people are there in your family?
4 how old 问年龄
How old is your father ?
5how long多久，问一段时间
How long did you stay there?
6how soon 多久之后，与一般将来时连用
How soon will you be back?
5.选择疑问句
(1)定义：选择疑问句表示提供两种或两种以上的情况，要求对方在所提供的范围、对象内选择。在所提供的最后一个备选对象前面用表示选择关系的并列连词or，朗读时or前用声调，or 后面用降调，句末用问号。
选择疑问句的结构
1、“一般疑问句+一个备选对象or+另一个备选对象”。例如：
Shall we go there by bus, bike or train? 我们乘公共汽车、自行车还是火车去?(备选对象为三者)
Would you like some tea or coffee? 你要茶水还是咖啡? (备选对象为二者)
Did you stay at home or at school yesterday? 你昨天呆在家还是在学校?(备选对象为二者)
2、“特殊疑问句+一个备选对象or+另一个备选对象”。例如：
Which would you like best, English, Chinese or Math? 你最喜欢哪门学科，英语、语文还是数学? (备选对象为三者)
When will you go to Canada, Sunday or Monday? 你何时去加拿大，星期天还是星期一?(备选对象为二者)
(2)选择疑问句的回答 不能用Yes /No来回答。
----Shall we play basketballor football?
----Play football.
6. 反意疑问句
是由一个陈述句加上一个短问句而构成的。反意疑问句的基本构成形式是：陈述句+动词(肯定或否定)+主语?如：
①She often has lunch at school, doesn't she? ②You don't like sports, do you?
使用反意疑问句要注意以下若干对应规则：
一、 反意疑问句中问句部分的动词与陈述部分的动词在语气上成相反的对应关系，即：
肯定+否定? 否定+肯定?如：
①You can't do it, can you? ②They are very late for the meeting, aren't they?
二、 反意疑问句中问句部分的动词与陈述部分的动词种类要对应一致。如：
①He has supper at home every day, doesn't he? (不能用hasn't he?)
②They have known the matter, haven't they? (不能用don't they?)
三、 反意疑问句中问句部分的动词在时态上应和陈述部分的时态一致。如：
①They will go to town soon, won't they?(不能用don't they?或 aren't they?)
②He works very hard, doesn't he?(不能用didn't he?或won't he?)
四、 反意疑问句的陈述部分含有由un-, im-, in-, dis-, 等否定意义的前缀构成的词语时，陈述部分要视为肯定含义，问句部分用否定形式。如：
①Your father is unhappy, isn't he?(不能用is he?)
②The man is dishonest, isn't he? (不能用is he?)
③It is impossible to learn English without remembering more words, isn't it?(不能用is it ?)
五、反意疑问句的陈述部分带有little, few, never, hardly, seldom等否定意义的词时，问句部分用肯定式。如：
①She never tells a lie, does she?(不用doesn't she?)
②He was seldom late, was he?(不用wasn't he?)
六、反意疑问句的陈述部分为I am……时，问句部分习惯上用aren't I?表示。如：
，我们将会及时处理。
