asif用法小結(jié)
今天和大家一起學(xué)習(xí)一下as if 用法，快來一起學(xué)習(xí)吧，下面小編就和大家分享，來欣賞一下吧。
as if 用法
一、as if 從句的作用
1. 在look, seem 等系動詞后引導(dǎo)表語從句。
如：
She looks as if she were ten years younger.
她看起來好像年輕了十歲。
It seems as if our team is going to win.
看來我們隊要勝了。
2. 引導(dǎo)方式狀語從句。
如：
She loves the boy as if she were his mother.
她愛這男孩，就好像她是他的母親一樣。
The child talked to us as if he was a grown up.
那孩子跟我們談起話來，像個成年人似的。
二、as if 還可用于省略句中如果as if 引導(dǎo)的從句是“主語+系動詞”結(jié)構(gòu)，可省略主語和系動詞，這樣as if 后就只剩下名詞、不定式、形容詞(短語)、介詞短語或分詞。
如：
He acts as if (he was) a fool.
他做事像個傻子。
Tom raised his hands as if (he was going) to say something.
湯姆舉起手好像要說什么。
She left the room hurriedly as if (she was)angry.
她匆忙離開房間好像生氣的樣子。
三、as if 從句的語氣及時態(tài)
1. as if 從句用陳述語氣的情況。 當(dāng)說話者認為句子所述的是真實的或極有可能發(fā)生或存在的事實時。
如：
It sounds as if it is raining.
聽起來像是在下雨。
He talks as if he is drunk.
從他談話的樣子來看他是醉了。
2.as if 從句用虛擬語氣的情況。 當(dāng)說話人認為句子所述的是不真實的或極少有可能發(fā)生或存在的情況時。從句虛擬語氣動詞時態(tài)的形式如下：
(1)如果從句表示與現(xiàn)在事實相反，謂語動詞用一般過去時。
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.
他說話的樣子，好像他知道她在哪里似的。
(2)從句表示與過去事實相反，謂語動詞用“had+過去分詞”。
如：
He talks about Rome as if he had been there before.
他說起羅馬來好像他以前去過羅馬似的。
The girl listened as if she had been turned to stone.
那女孩傾聽著，一動也不動，像已經(jīng)變成了石頭似的。
(3)從句表示與將來事實相反，謂語動詞用“would/could/might+動詞原形”。
如：
He opened his mouth as if he would say something.
他張開嘴好像要說什么。
It looks as if it might snow.
看來好像要下雪了。
語法學(xué)習(xí)：as if虛擬語氣的用法
as if虛擬語氣的用法
有時用虛擬語氣，若表示與現(xiàn)在事實相反，謂語動詞用一般過去時;若表示與過去事實相反，用過去完成時;表示將來的可能性不大，用would (might, could)+動詞原形。
(1) 從句所表示的內(nèi)容若為事實或可能為事實，也可用陳述語氣：
例：It looks as if we'll be late.
我們似乎要遲到了。
This meat tastes as if it has already gone bad. 這
肉吃起來似乎已經(jīng)壞了。
在現(xiàn)代英語中，有時即使從句內(nèi)容不是事實，也可能用陳述語氣：
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.
玩具狗叫起來像真狗。
(2) 注意 It isn't as if…的翻譯：
例：
It isn't as if he were poor.
他不像窮的樣子(或他又不窮)。
It isn't as if you were going away for good.
又不是你離開不回來了。
【每日單詞】語法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.
英語口語常用句型|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.
第四十五課
I feel as if...
我覺得好像······
用法透視
這個句型的含義與“I feel...”相同，但要注意“as if”后的從句中多用虛擬語氣。
支持范例
1. I feel as if my head were bursting.
我覺得頭好像要炸開了。
2. I felt as if I had lost the most precious thing forever.
我覺得好像永遠地失去了最珍貴的東西。
3. I feel as if I had waken from a nightmare.
我覺得好像剛從噩夢中醒來。
會話記憶
A: Why are you so crazy about bird-watching? What do you get out of it?
你為什么對賞鳥那么喜愛?你能從中得到什么?
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.
觀賞這些美麗的生物，聆聽它們的歌唱是極美妙的經(jīng)歷。我覺得就像與大自然直接接觸。
A: Really?
真的嗎?
B: You bet. You should try it yourself.
當(dāng)然。你應(yīng)該親自體驗一下。
虛擬語氣as if...were, but for 用法
英文中的as if … were, but for 都可以用在虛擬語氣中。今天北鼎教育和大家溫習(xí)一下它們的用法。童鞋們可以看一下例句，學(xué)會使用這兩個結(jié)構(gòu)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. 如果我遇到他那樣的情況，但愿我能做同樣的事。
I wish I could do the same thing if Iwere under his circumstances.
2. 要不是有來自太陽的熱量，地球早就凍成冰球了。
But for the heat fromthe sun, the earth would have been a frozen ball.
3. 令他父母感到驚訝的是，那男孩像喝橙汁一樣把藥湯喝了下去。
Much to his parents’surprise, the boy took the liquid medicine as if it were orange juice.
4. 我要是個小伙子，上個月我就參加那次登山活動了。
If I were a young man,I would have gone on the mountaineering expedition last month.
5. 要不是沒完沒了的電話打擾，他已經(jīng)寫完報告了。
But for theinterruption of endless phone calls, he would have completed the report.
6. 頭等獎獲得者從我們身邊走過，頭抬得高高的，好像她從來就不認識我們似的。
The first-prize winnerwalked past us, with her head held high, as if she had never known us.
7. 這事要是公布于眾，執(zhí)政黨的名譽就會嚴重受損。
The governing/rulingparty’s reputation would be seriously damaged if this were ever made public.
8. 這些年來，那位護士總是很細心地照顧年輕患者，好像他們是自己的孩子一樣。
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，我根本不會知道世上還有如此寧靜、風(fēng)景如畫的村莊。
I would not know thereexists such a quiet and picturesque village but for your article.
10. 天亮之前，地震發(fā)生了，全城都在搖晃，就像被捏在一個巨大的拳頭中。
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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