You use what to indicate that you are making a guess about something such as an amount or value.
It's, what, eleven years or more since he's seen her.
打他上次见到她,已经有,嗯,11年甚至更久了。
You use what after certain words, especially verbs and adjectives, when you are referring to a situation that is unknown or has not been specified.
You can imagine what it would be like driving a car into a brick wall at 30 miles an hour.
你可以想像以每小时30英里的速度,开车向一面砖墙撞去会是什么样子。
I want to know what happened to Norman.
我想知道诺曼出什么事了。
You use what at the beginning of a clause in structures where you are changing the order of the information to give special emphasis to something.
What precisely triggered off yesterday's riot is still unclear.
究竟是什么引发了昨天的暴乱仍然不清楚。
What I wanted, more than anything, was a few days' rest.
我最想要的就是能休息几天。
You use what in expressions such as what is called and what amounts to when you are giving a description of something.
She had been in what doctors described as an irreversible vegetative state for five years.
她处于医生们所说的一种不可逆转的植物人状态已长达5年之久。
You use what to indicate that you are talking about the whole of an amount that is available to you.
He drinks what is left in his glass as if it were water.
他把杯子里所剩下的全部喝光,好像喝的是水一样。
You say 'What?' to tell someone who has indicated that they want to speak to you that you have heard them and are inviting them to continue.
'Dad?'—'What?'—'Can I have the car tonight?'
“爸爸?” “什么?” “我今晚可以用车吗?”
You say 'What?' when you ask someone to repeat the thing that they have just said because you did not hear or understand it properly. 'What?' is more informal and less polite than expressions such as 'Pardon?' and 'Excuse me?'
'They could paint this place,' she said. 'What?' he asked.
“他们可以把这个地方油漆一下,”她说。“什么?”他问。
You say 'What' to express surprise.
'Adolphus Kelling, I arrest you on a charge of trafficking in narcotics.'—'What?'
“阿道弗斯·克林,我要以贩毒的罪名逮捕你。” “什么?”
guess what , do you know what
You say guess what or do you know what to introduce a piece of information that is surprising, that is not generally known, or that you want to emphasize.
Guess what? I'm going to dinner at Mrs Chang's tonight.
你知道吗?我今晚要去常太太家吃晚饭啦。
so what , what of it
You say so what? or what of it? to indicate that the previous remark seems unimportant, uninteresting, or irrelevant to you.
'What if there is no kerosene this winter?' said Al.—'So what?' she said. 'We still have electricity.'
“今年冬天如果没有煤油可怎么办呢?”阿尔说。—“那又怎么样?”她说,“我们还有电呢。”
'You're talking to yourself.'—'Well, what of it?'
“你在自言自语。” “呵,那又怎么样?”
You use what in questions when you ask for specific information about something that you do not know.
What time is it?
现在几点钟?
What crimes are the defendants being charged with?
被告是什么罪名?
'The heater works.'—'What heater?'
“加热器可以用。” “什么加热器?”
You use what after certain words, especially verbs and adjectives, when you are referring to a situation that is unknown or has not been specified.
I didn't know what college I wanted to go to.
我不知道我想上什么大学。
I didn't know what else to say.
我不知道还有什么可说的。
You use what to indicate that you are talking about the whole of an amount that is available to you.
They had used what money they had.
他们用尽了所有的钱。
You use what in exclamations to emphasize an opinion or reaction.
What pretty hair she has, nice and thick.
她的头发多漂亮啊,好看又浓密。
what about
You use what about at the beginning of a question when you make a suggestion, offer, or request.
What about going out with me tomorrow?
明天和我一块出去怎么样?
You say what about a particular person or thing when you ask someone to explain why they have asked you about that person or thing.
'This thing with the Corbett woman.'—'Oh, yeah. What about her?'
“与那个姓科比特的女人有关的那件事。” “噢,是啊,她怎么了?”
what about , what of
You use what about or what of when you introduce a new topic or a point that seems relevant to a previous remark.
Now you've talked about work on daffodils, what about other commercially important flowers, like roses?
既然你谈到了种植水仙,那么其他有重要商业价值的花卉,如玫瑰,又怎么样呢?
or what
In conversation, you say or what? after a question as a way of stating an opinion forcefully and showing that you expect other people to agree.
Look at that moon. Is that beautiful or what?
看那月亮。很美,不是吗?
what if
You say what if at the beginning of a question when you ask about the consequences of something happening, especially something undesirable.
What if this doesn't work out?
如果这行不通该怎么办呢?
tell you what
You say 'Tell you what' to introduce a suggestion or offer.
Tell you what, let's stay here another day.
你听我说,咱们在这儿再住一天吧。
You use what in exclamations to emphasize an opinion or reaction.
What a horrible thing to do.
做这样的事多可怕!
You use what in questions when you ask for specific information about something that you do not know.
What do you want?
你想要什么?
What did she tell you, anyway?
她到底对你说了什么?
'Has something happened?'—'It certainly has.'—'What?'
“发生了什么事吗?” “当然。” “是什么事?”