You use now to refer to the present time, often in contrast to a time in the past or the future.
She's a widow now.
她现在是一个寡妇。
But we are now a much more fragmented society.
但是我们现在所处的是一个更加四分五裂的社会。
If you do something now, you do it immediately.
I'm sorry, but I must go now.
很抱歉我得马上走了。
You use now to indicate that a particular situation is the result of something that has recently happened.
Mrs Chandra has received one sweater for each of her five children and says that the winter will not be so hard now.
钱德拉太太已经收到了5件毛衫,她的5个孩子每人一件,她说这样一来冬天就不会那么难挨了。
She told me not to repeat it, but now I don't suppose it matters.
她告诉我不要重蹈覆辙,但现在看来这已经不重要了。
In stories and accounts of past events, now is used to refer to the particular time that is being written or spoken about.
She felt a little better now.
这会儿她觉得好点儿了。
It was too late now for Blake to lock his room door.
布莱克那时锁他的房门已经太晚了。
You use now in statements which specify the length of time up to the present that something has lasted.
They've been married now for 30 years.
他们结婚至今已30年。
They have been missing for a long time now.
到现在他们已经失踪很长一段时间了。
You say 'Now' or 'Now then' to indicate to the person or people you are with that you want their attention, or that you are about to change the subject.
'Now then,' Max said, 'to get back to the point.'
“好了,”马克斯说:“回到正题。”
Now then, what's the trouble?
好了,出什么问题了?
You use now to give a slight emphasis to a request or command.
Come on now. You know you must be hungry.
好了。你看你一定是饿了。
Come and sit down here, now.
好了,来坐在这里吧。
You can say 'Now' to introduce information which is relevant to the part of a story or account that you have reached, and which needs to be known before you can continue.
My son went to Aspen, in Colorado. Now he and his wife are people who love a quiet vacation.
我儿子去了科罗拉多的阿斯彭。你要知道,他和他妻子是喜欢过安静假期的那种人。
You say 'Now' to introduce something which contrasts with what you have just said.
Now, if it was me, I'd want to do more than just change the locks.
然而,如果是我,我要做的远不只是换换锁。
You use now or now that to indicate that an event has occurred and as a result something else may or will happen.
Now you're settled, why don't you take up some serious study?
既然你安顿下来了,为什么不开始认真学习呢?
now and then , now and again , every now and again
If you say that something happens now and then or every now and again, you mean that it happens sometimes but not very often or regularly.
My father has a collection of magazines to which I return every now and then.
我父亲收藏杂志,我偶尔会翻阅一下。
any day now , any moment now , any time now
If you say that something will happen any day now, any moment now, or any time now, you mean that it will happen very soon.
Jim expects to be sent to Europe any day now.
吉姆期待不久就被派往欧洲。
just now
Just now means a very short time ago.
You looked pretty upset just now.
你刚才看上去很沮丧。
I spoke just now of being in love.
我刚才说到恋爱了。
You use just now when you want to say that a particular situation exists at the time when you are speaking, although it may change in the future.
I'm pretty busy just now.
我此刻很忙。
now for
People such as television presenters sometimes use now for when they are going to start talking about a different subject or start presenting a new activity.
And now for something completely different.
现在谈点完全不同的事情。
You use now to refer to the present time, often in contrast to a time in the past or the future.
Now is the time when we must all live as economically as possible.
现在到了我们都必须尽可能节俭度日的时候了。
You can use now to refer to the immediate future.
Now is your chance to talk to him.
马上就轮到你和他谈话了。