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虛擬語氣相關的語法是什么舉例
______from website 虛擬語氣，對過去虛擬，從句用過去完成時 虛擬語氣是一種動詞形式，表示說話人的一種愿望，假設，懷疑，猜測， 建議等含義，虛擬語氣所表示的含義不是客觀存在的事實。
If I were you, I'd take them away。 如果我是你的話，我就會帶走他們。
If I had met Li Hua, I could had told him。 如果我碰見了李華，我就告訴了他了。
If I had time。 I could come to help you。
如果我有時間，我會來幫助你的。 He suggested that our class should be divided into five groups。
他建議說我們的班應該分成五個小組。 He speaks to us as if he had been there。
他給我們講的好象他去過那兒。 虛擬語氣的用法 1） 虛擬語氣用在簡單句中，表示祝愿，命令。
May you be happy。 祝你幸福。
May you have a good time。 祝愿你玩的痛快。
May the friendship between us last long。 祝愿我們的友情天長地久。
Have a good journey！ 祝愿你旅途愉快！ You go out！ 你出去！ 2） 虛擬語氣用在賓語從句中。動詞 wish, suggest,order,insist, propose，等詞后面的賓語從句表示的是一種虛擬語氣， 賓語從句中的動詞動作表示的只是一種愿望，要求。
I wish she would be on my side。 我希望她能站在我一邊。
I wish I could help him。 我希望我能幫助他。
He insisted that all of us should be there on time by any means。 他堅持要我們大家想盡辦法按時去那兒。
動詞 demand, suggest, order, insist, propose 后面的從句中，"should" 可以省略。 The teacher suggested that we (should) clean the blackboard after class。
老師建議我們課后把黑板擦了。 He ordered that the students wash the clothes every week by themselves。
他要求學生每周都要自己洗衣服。 3） 虛擬語氣用在主語從句中。
在句型 "It is important (necessary, strange, natural) that 。
" 中，that 后面的從句中的謂語動詞用： should + 動詞原形 It's necessary that we should have a walk now。 我們有必要出去散散步。
It's natural that she should do so。 她這樣做是很自然的。
It's important that we should take good care of the patient。 重要的是我們要照顧好病人。
4） 虛擬語氣用在狀語從句中。 虛擬語氣最多地用在表示條件的狀語從句和表示結果的主句中。
在表示與事實相反的虛擬語氣時，動詞有三種時態形式，即現在，過去和將來。 與現在事實相反的： 條件從句 結果從句 If I (we,you,he,they)+ 動詞過去式。
。 if I (he,she) were。
I (we) should + 動詞原形。 He (you,they) would + 動詞原形。
與過去事實相反的： 條件從句 結果從句 If I(we,you,he,they)+ had + 過去分詞 I(we)should + have+ 過去分詞。 He (you,they) would + have + 過去分詞。
If I were you, I should buy it。 如果我是你，我就買了它。
If I had time, I would study French。 如果我有時間，我會學習法語的。
If she knew English,she would not ask me for help。 如果她懂英語的話，她不會找我幫忙的。
If you had got up earlier, you could have caught the train。 如果你早一點起床，就會趕上火車的。
If it were fine tomorrow,I would go shopping。 如果明天天氣好，我就去買東西。
有關虛擬語氣的幾個問題： 1） 有時if引導的狀語從句可以省略 if，而把從句中的動詞 were, had 或 should 移到主語前面。 Were she younger, she would do it 。
如果她年青點， 她就會干的。 Had he known her address, he would had gone to visite her。
如果他知道她的地址，他會去看她的。 2） 有時表示虛擬語氣的條件從句或者主句都可以省略，而只剩下一個主句或者一個條件從句。
I could help you。 我本來可以幫助你。
If I had time。 我要有時間該多好啊。
She should have come to the party。 她應該來參加聚會。
If he had much more money。 如果他有更多的錢就能。
。 3） 虛擬語氣中，條件從句的動詞動作可以和主句的動詞動作時態不一致。
If they had studied hard, they could do it easily now。 如果他們以前努力學習的話，現在干的就會容易些。
If he had not taken my advice, he wouldn't do it much better like this。 如果他不聽取我的建議，他就不會干得這樣好。
。
虛擬語氣的語法知識虛擬語氣語法的一些例句及必要的講解
虛擬語氣是英語中較難掌握的一個語法內容，它是和陳述、祁使、疑問和感嘆并列的語法現象，虛擬就是假設，非真實、與事實相反，一般分為與現在、 過去、將來相反三種： 與現在相反： 主句： 用動詞過去式 從句：could\would\should\might。
。
+ 動詞原形 be一律用were If I were you, I wouldn't do that。 與過去相反： 主句：Had + 動詞過去分詞V+ed從句：與could\would\should\might。
。
+ have+V+ed If he had gone there, he could\ might\ would have known the news。 與將來相反： 主句：動詞過去式 should+V原形 were to+V原形 從 句：could\would\should\might。
。
+could\would\should\might。
。+ V原形 If it should rain tomorrow, what I would do。
此外虛擬語氣還用于wish\ suggest\ inist\order \require等動詞的賓語從句（常用should + 動詞原形）及其以該動詞為詞根的名詞從句中： I wish I could go to the moon。 HE suggested that we (should )go to the teacher for help。
Their suggestion is that they (should ) finsh the work ahead of time。 It an order that all of us should gather at the playground。
。
虛擬語氣句子
虛擬語氣：1) If doesn't >>> I will (in the future)2) If didn't >>> I would (right now)3) If hadn't >>> I would have had (in the past) 好吧，三樓這個亂七八糟的給你講清楚些：你上面看到的，是虛擬語氣的三種固定搭配。
虛擬語氣就是對假設的情況進行討論。而句子的時態和用法取決于虛擬的情況的時態。
總體上說，假設情況的那半句（If引導的從句）的時態總是要比主句的時態更古老。為什么？因為你總是要假設一件事情發生了，才會有另一件事情發生。
我當初要是怎么樣怎么樣了，那我現在就會怎么樣怎么樣。我現在要是這樣子做，那我將來就會怎么樣怎么樣。
看幾個例子吧：If he didn't kill her, she would be 18 years old now. （說她現在就會是九歲了，那么虛擬的時態就該再古老一些，變成過去式。）If he doesn't want to kill her, I will kill her. （主句是個將來時態，那么從句就退一格，變成現代時態。）
依此類推。現在應該清楚了吧？ 再多說幾句，中學老師會告訴你虛擬語氣是不可能發生的事情的一種討論，別信那些狗屁邏輯。
你更應該嘗試去理解老外說話的習慣，虛擬語氣其實從語法上講是很符合邏輯的一件事情。你的那個例句：If you answered “A” for most queations,then you are probably very *引導這件事情是發生在過去的，當然要用過去時態。
很正常的一件事，為什么要把可能性判斷拉出來迷惑大家。 要掙你這幾分真不容易。
虛擬語氣的句子的時態是由主句的時態決定的，虛擬的語句總是比主句的時態要早一些，這是掌握好虛擬語氣的關鍵。說白了就是把上面的三個固定搭配記住，這樣就萬事大吉了。
問問英語中虛擬語句怎么用啊
虛擬語氣是一種動詞形式，表示說話人的一種愿望，假設，懷疑，猜測， 建議等含義，虛擬語氣所表示的含義不是客觀存在的事實。
在條件句中的應用，條件句可分為兩類，一類為真實條件句，一類為非真實條件句。非真實條件句表示的是假設的或實際可能性不大的情況，故采用虛擬語氣。
一、虛擬語氣在從句中的使用虛擬語氣即表達不可能發生或與預期相反的情況。首先我們應熟悉它在三種時態里的使用情況，這是正確使用虛擬語氣的基礎。
這三種時態是：現在；過去；將來。 1、表示現在的虛擬式 時 態從 句 動 詞主 句 動 詞 現 在 did would + do If I were a bird, I would fly to you. 如果我是只鳥，我就會飛到你身邊去。
If it were not for their help, we should be in a very difficult position. 如果不是他們的幫忙，我們就會處于一個非常困難的境地。 2、表示過去的虛擬式 時 態從 句 動 詞主 句 動 詞 過 去had + donewould + have + done If we had started earlier, we should not have missed the train. 如果我們早一點動身的話，就不會誤車了。
If she hadn't been ill, she might have come.如果她不是病了，可能會來的 3、表示將來的虛擬式 時 態從 句 動 詞主 句 動 詞 將 來should + do were to + dowould + do If Professor Li should have time tomorrow, we could ask him some questions. 如果李教授明天有空的話，我們可以問他點問題。 If there should be no air, there would be no living things. 如果沒有空氣，就不會有生物。
二、錯綜時間的虛擬句 通常情況下，在非真實條件句中主句和從句的謂語動詞所指時間是一致的， 但有時也可能指不同的時間，這時要根據上下文的意思采用不同的謂語動詞形式. If I were you, I would have taken his advice. （從句指現在， 主句指過去）。 換成我是你，我就會聽從他的建議。
If I had taken my raincoat with me this morning, I would not be wet now. （從句指過去，主句指現在）。如果我今天早上帶了雨衣，現在就不會被淋濕了。
If we hadn't been working hard in the past few years, things wouldn't be going so smoothly. （從句指過去，主句指現在）。如果過去幾年里不努力工作，現在的情況就不會如此順利了。
If the weather had been more favorable, the crops would be growing still better.（從句指過去，主句指現在）。如果當時的天氣更好點，現在的莊稼就會長得更好。
If we had not got everything ready by now, we should be having a more terrible time tomorrow. （從句指現在，主句指將來） 如果現在一切還沒準備好，明天情況就更糟了。 三、含蓄條件句 有時假設的情況并不以條件從句表示出來，二是暗含在上下文中，比如通過介詞短語來表示。
這些介詞常是：but for, without, otherwis等。如： But for your advice, I could not have done it so successfully. 如果不是聽了你的建議，我就不會做的如此成功。
The change could not have taken place without the open-door policy. 沒有開放的政策，就不會有如此大的變化。 I was so busy then, Otherwise, I would have told him the answer. 我當時很忙，否則，我就會把答案告訴他的。
四、虛擬語氣在某些從句中的應用 1、wish后的賓語從句（would rather (sooner) 后也是如此） I would rather they came tomorrow. 我寧愿他們明天來。 How I wish it wasn't raining now. 如果現在不下雨該多好呀！ I wish I had not been to yesterday's party. 我要不去參加昨天的宴會就好了！ 但would rather 后沒有主語則應使用零不定式. 2、suggest, order, demand, propose, command, request, desire, insist 等動詞后的賓語從句 They demanded that the aggressor troops (should) be withdrawn immediately. 他們要求侵略者立刻撤退。
I propose that we (should) set a deadline for handing in the plan. 我提議應該制定一個交計劃的最后期限。 3、it is desired, it's suggested, it's requested, it was ordered that, it was proposed that, it is necessary that, it is important that, it has been decided that 等之后的主語從句： It is necessary that he (should) be sent there at once. 有必要立刻派他前往。
It's required that Mr. Lee (should) give a performance at the party. 要求李先生在晚會上出個節目。 It's desired that we (should) get everything ready by tonight. 要求我們在今晚前把一切準備好。
4、在suggestion, motion, proposal, order, recommendations, plan, idea 等后面引出的表語從句和同位語從句中： The order came that all villagers evacuate from the village. 要求所有村民撤退的命令下達了。 I second Xiao Li's motion that we set up a special board to tackle the problem. 小李提議成立一個特別委員會處理此問題，我附議。
5、在下列句型中要用 should +動詞原形。如：it is a pity, it is a shame, it is incredible, it is strange, it is no wonder It is a great pity that he should be so conceited. 很可惜，他這個人竟然這么自大。
It's strange that she should have failed to see her own shortcomings. 奇怪的是他竟看不到自己的缺點。 6、as if, as though 引起的從。
