asif用法小结
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今天和大家一起学习一下as if 用法，快来一起学习吧，下面小编就和大家分享，来欣赏一下吧。
as if 用法
一、as if 从句的作用
1. 在look, seem 等系动词后引导表语从句。
如：
She looks as if she were ten years younger.
她看起来好像年轻了十岁。
It seems as if our team is going to win.
看来我们队要胜了。
2. 引导方式状语从句。
如：
She loves the boy as if she were his mother.
她爱这男孩，就好像她是他的母亲一样。
The child talked to us as if he was a grown up.
那孩子跟我们谈起话来，像个成年人似的。
二、as if 还可用于省略句中如果as if 引导的从句是“主语+系动词”结构，可省略主语和系动词，这样as if 后就只剩下名词、不定式、形容词(短语)、介词短语或分词。
如：
He acts as if (he was) a fool.
他做事像个傻子。
Tom raised his hands as if (he was going) to say something.
汤姆举起手好像要说什么。
She left the room hurriedly as if (she was)angry.
她匆忙离开房间好像生气的样子。
三、as if 从句的语气及时态
1. as if 从句用陈述语气的情况。 当说话者认为句子所述的是真实的或极有可能发生或存在的事实时。
如：
It sounds as if it is raining.
听起来像是在下雨。
He talks as if he is drunk.
从他谈话的样子来看他是醉了。
2.as if 从句用虚拟语气的情况。 当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时。从句虚拟语气动词时态的形式如下：
(1)如果从句表示与现在事实相反，谓语动词用一般过去时。
如：
You look as if you didn’ t care.
你看上去好像并不在乎。
He talks as if he knew where she was.
他说话的样子，好像他知道她在哪里似的。
(2)从句表示与过去事实相反，谓语动词用“had+过去分词”。
如：
He talks about Rome as if he had been there before.
他说起罗马来好像他以前去过罗马似的。
The girl listened as if she had been turned to stone.
那女孩倾听着，一动也不动，像已经变成了石头似的。
(3)从句表示与将来事实相反，谓语动词用“would/could/might+动词原形”。
如：
He opened his mouth as if he would say something.
他张开嘴好像要说什么。
It looks as if it might snow.
看来好像要下雪了。
语法学习：as if虚拟语气的用法
as if虚拟语气的用法
有时用虚拟语气，若表示与现在事实相反，谓语动词用一般过去时;若表示与过去事实相反，用过去完成时;表示将来的可能性不大，用would (might, could)+动词原形。
(1) 从句所表示的内容若为事实或可能为事实，也可用陈述语气：
例：It looks as if we'll be late.
我们似乎要迟到了。
This meat tastes as if it has already gone bad. 这
肉吃起来似乎已经坏了。
在现代英语中，有时即使从句内容不是事实，也可能用陈述语气：
例：
I feel as if [as though] I'm floating on air.
他感到好像漂浮在空中。
The stuffed dog barked as if it is [were, was] a real one.
玩具狗叫起来像真狗。
(2) 注意 It isn't as if…的翻译：
例：
It isn't as if he were poor.
他不像穷的样子(或他又不穷)。
It isn't as if you were going away for good.
又不是你离开不回来了。
【每日单词】语法As if and As though的用法
as is/though + subject + present/past verb
as is/though + subject + past verb with present meanning
1. As if and as though mean the same
we use them to say what a situation seems like.
a. It looks as if/though it's going to rain.
b. I felt as if/ though I was dying.
2. We can use a past tense with a present meaning after as if/though. This means that the idea is 'unreal'.
compare:
a. He looks as if he's rich.(Perhaps he is rich.)
b. She talks as if she was rich. (But she isn't.)
We can use weere instead of was when we express 'unreal' ideas after as if/though. This is common in a formal style.
a. She talks as if she were rich.
英语口语常用句型|I feel as if
Like is often used instead of as if/though, especially in American English. This is very informal.
a. It looks like it's going to rain.
第四十五课
I feel as if...
我觉得好像······
用法透视
这个句型的含义与“I feel...”相同，但要注意“as if”后的从句中多用虚拟语气。
支持范例
1. I feel as if my head were bursting.
我觉得头好像要炸开了。
2. I felt as if I had lost the most precious thing forever.
我觉得好像永远地失去了最珍贵的东西。
3. I feel as if I had waken from a nightmare.
我觉得好像刚从噩梦中醒来。
会话记忆
A: Why are you so crazy about bird-watching? What do you get out of it?
你为什么对赏鸟那么喜爱?你能从中得到什么?
B: Looking at the beautiful creatures and listening to their songs are such wonderful experiences. I feel as if I'm in direct contact with nature.
观赏这些美丽的生物，聆听它们的歌唱是极美妙的经历。我觉得就像与大自然直接接触。
A: Really?
真的吗?
B: You bet. You should try it yourself.
当然。你应该亲自体验一下。
虚拟语气as if...were, but for 用法
英文中的as if … were, but for 都可以用在虚拟语气中。今天北鼎教育和大家温习一下它们的用法。童鞋们可以看一下例句，学会使用这两个结构造句。
…but for his alertness, he must have been smashed beneath it.
…but the muck suckedviciously at his foot as if it were a giant leech.
Ifthis were France, all the country would bein bloody revolution by twenty-four hours.
1. 如果我遇到他那样的情况，但愿我能做同样的事。
I wish I could do the same thing if Iwere under his circumstances.
2. 要不是有来自太阳的热量，地球早就冻成冰球了。
But for the heat fromthe sun, the earth would have been a frozen ball.
3. 令他父母感到惊讶的是，那男孩像喝橙汁一样把药汤喝了下去。
Much to his parents’surprise, the boy took the liquid medicine as if it were orange juice.
4. 我要是个小伙子，上个月我就参加那次登山活动了。
If I were a young man,I would have gone on the mountaineering expedition last month.
5. 要不是没完没了的电话打扰，他已经写完报告了。
But for theinterruption of endless phone calls, he would have completed the report.
6. 头等奖获得者从我们身边走过，头抬得高高的，好像她从来就不认识我们似的。
The first-prize winnerwalked past us, with her head held high, as if she had never known us.
7. 这事要是公布于众，执政党的名誉就会严重受损。
The governing/rulingparty’s reputation would be seriously damaged if this were ever made public.
8. 这些年来，那位护士总是很细心地照顾年轻患者，好像他们是自己的孩子一样。
Throughout the years,the nurse has always treated young patients very carefully as if they were herown children.
9. 要不是你的那篇文章，我根本不会知道世上还有如此宁静、风景如画的村庄。
I would not know thereexists such a quiet and picturesque village but for your article.
10. 天亮之前，地震发生了，全城都在摇晃，就像被捏在一个巨大的拳头中。
Before dawn anearthquake struck and the entire city seemed to shake as if (it were) in thegrip of a giant fist.
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