【第1句】： 英語中的假設句是怎么回事

【第1句】： 虛擬語氣用來表示假想，而不表示客觀存在的事實，所說的是一個條件，不一定是事實，或與事實相反。虛擬語氣通過謂語動詞的特殊形式來表示。英語中的語氣分為陳述語氣、祈使語氣、虛擬語氣三類。虛擬語氣表示說話者所說的話并非事實，或難以實現的，甚至表達相反的概念。另外表示主觀愿望或表達某種強烈的感情時，也用虛擬語氣。

【第2句】： 虛擬語氣表示說話人的主觀愿望、猜疑、建議或與事實不符的假設等，而不表示客觀存在的事實。虛擬語氣是由句中的謂語從句的特殊形式表示出來的。如：

If I were a bird,I would be able to fly in the air.

如果我是一只小鳥，我就能在空中飛行。

I wish I could pass the examination.

我希望我能通過考試。

May you succeed!

祝你成功！

If only we had been college students last year!

上一年我們要是大學生該多好！

【第3句】： 應用條件

在表示假想的虛假的、與事實相反的或難以實現的情況時用虛擬語氣，表示主觀愿望或某種強烈情感時，也用虛擬語氣。即當一個人說話時欲強調其所說的話是基于自己的主觀想法，愿望，假想，猜測，懷疑或建議，而不是根據客觀實際，就用虛擬語氣。主要是英語語法的一種表達。

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【第4句】： from 度娘百科，更多請自行度娘.

【第2句】： 英語中假設有幾類

英語中表示假設的句子主要是虛擬語氣，其表示方式有：

【第1句】：以if條件從句為虛擬語氣標志：

與現在事實相反 從句時態用一般過去時（be用were），主句用過去將來時

例如：If I were you, I would finish homework first.

與過去事實相反 從句用過去完成時，主句用過去將來完成時

例如：If I had gone there, I would have bought two tickets.

與將來事實相反 從句用一般過去時或過去將來時，主句用過去將來時

例如：If he had/would have time, he would come to your birthday party tomorrow.

【第2句】：以even if/though讓步從句為虛擬語氣標志 主從句時態同if條件從句相同

例如：He might give you more help, even though he were/was very busy.

【第3句】：以as if/though引導的表語從句或狀語從句為虛擬語氣標志 主從句時態同if條件從句相同

例如：It seems as if he had known the news.

【第4句】：以wish后的賓語從句為虛擬語氣標志

與現在事實相反 從句時態用一般過去時（be用were）

例如：I do wish I knew more about the subject.

與過去事實相反 從句用過去完成時

例如：I wish I had seen you yesterday.

與將來事實相反 從句用過去將來時

例如：I wish you wouldn't smoke any more.

【第3句】： 英語中如何區分虛擬語態或假設性的句子

語氣是以動詞形式表現出來的語法特征，它表示說話人對事物所持的態度。

1）陳述語氣：用來陳述事實的，有肯定，否定，疑問或感嘆等形式。She is very clever.What fun it is to swim in the lake!Why don't you join an English language club to practice speaking English? 2） 祈使語氣： 用來表示請求，命令或勸告等。

Don't be late for the meeting.3）虛擬語氣：：表示所說的內容與事實不符，不是事實或是不可能發生的，只是一種愿望，建議或與事實相反的假設等。真實條件句 真實條件句用于陳述語氣，假設的情況可能發生，其中 if 是如果的意思。

時態關系句型： 條件從句 主句一般現在時 shall/will + 動詞原形 If he comes, he will bring his violin.典型例題 The volleyball match will be put off if it ___. A. will rain B. rains C. rained D. is rained 答案B。真實條件句主句為將來時，從句用一般現在時。

非真實（虛擬）條件句 1）時態：可以表示過去，現在和將來的情況。它的基本特點是時態退后。

a.同現在事實相反的假設。句型 ： 條件從句 主句 一般過去時 should( would) +動詞原形If they were here, they would help you.b.表示與過去事實相反的假設。

句型： 條件從句 主句 過去完成時 should(would) have+ 過去分詞If she had worked harder, she would have succeeded. The rice would not have been burnt if you had been more careful. If my lawyer had been here last Saturday, he would have prevented me fromgoing. If he had come yesterday, I should / would have told him about it.含義：He did not come yesterday, so I did not tell him about it.If he had not been ill and missed many classes, he would have made greaterprogress.含義： He was ill and missed many lessons, so he did not make greater progress. c. 表示對將來的假想 句型： 條件從句 主句一般過去時 should+ 動詞原形were+ 不定式 would + 動詞原形should+ 動詞原形 If you succeeded, everything would be all right. If you should succeed, everything would be all right. If you were to succeed, everything would be all right.wish的用法 用于wish后面的從句，表示與事實相反的情況，或表示將來不太可能實現的愿望。其賓語從句的動詞形式為：真實狀況 wish后 從句動作先于主句動詞動作 現在時 過去時（be的過去式為 were） 從句動作與主句動作同時發生 過去時 過去完成時（had + 過去分詞） 將來不大可能實現的愿望 將來時 would/could + 動詞原形 I wish I were as tall as you. 我希望和你一樣高。

He wished he hadn't said that. 他希望他沒講那樣的話。 I wish it would rain tomorrow. 我希望明天下雨就好了。

【第4句】： 書面表達

Last Saturday we visited a hope school. It was a great way to know some other children's life. We

had a party with the students there. We also helped them clean up their classrooms. The head teacher told

us some stories about some hardworking students who are from very poor families. And in order to raise

money for them, we held a big sale in our school playground the next day. We raised a lot of money. I

think being a volunteer is really great and I would like to help more people.

【第5句】： 作假設的句子

假設關系：如果（假使、倘若、要是）……就……；即使（就是、盡管、就算、哪怕）……也……一般用表示假設的關聯詞造的句子就是假設關系的句子。還有的沒有關聯詞。但句子意思表示未發生卻被設想出的也是假設關系。

如果明天下雨，那么郊游取消

如果明天下雨，春游還是照常進行

假設我參加了這個造句 那我一定能得到經驗！

假設我能看透別人的內心，我一定要了解他們都在想什么

假如我有足夠的人手 一定先去掀翻六中食堂

假如沒有假如 一定沒有這個貼

假如我有世人不可阻擋的力量，我一定會為貼吧除掉一愛發水貼的貨害：李敖

假如我能號召奧特曼、比格拉斯、阿波羅、本·拉登、賽亞人、撒旦、卡扎菲···等眾大神，我一定能把趙建整的連渣都不剩

假設我是國家主席 那就公布全國學生10年不用上學

假設我用假設這兩個字造一個跟假設有關的句子我該怎么把假設這兩個字帶進去呢

【第6句】： 英語中如何區分虛擬語態或假設性的句子

語氣是以動詞形式表現出來的語法特征，它表示說話人對事物所持的態度。

1）陳述語氣：用來陳述事實的，有肯定，否定，疑問或感嘆等形式。She is very clever.What fun it is to swim in the lake!Why don't you join an English language club to practice speaking English? 2） 祈使語氣： 用來表示請求，命令或勸告等。

Don't be late for the meeting.3）虛擬語氣：：表示所說的內容與事實不符，不是事實或是不可能發生的，只是一種愿望，建議或與事實相反的假設等。真實條件句 真實條件句用于陳述語氣，假設的情況可能發生，其中 if 是如果的意思。

時態關系句型： 條件從句 主句一般現在時 shall/will + 動詞原形 If he comes, he will bring his violin.典型例題 The volleyball match will be put off if it ___. A. will rain B. rains C. rained D. is rained 答案B。真實條件句主句為將來時，從句用一般現在時。

非真實（虛擬）條件句 1）時態：可以表示過去，現在和將來的情況。它的基本特點是時態退后。

a.同現在事實相反的假設。句型 ： 條件從句 主句 一般過去時 should( would) +動詞原形If they were here, they would help you.b.表示與過去事實相反的假設。

句型： 條件從句 主句 過去完成時 should(would) have+ 過去分詞If she had worked harder, she would have succeeded. The rice would not have been burnt if you had been more careful. If my lawyer had been here last Saturday, he would have prevented me fromgoing. If he had come yesterday, I should / would have told him about it.含義：He did not come yesterday, so I did not tell him about it.If he had not been ill and missed many classes, he would have made greaterprogress.含義： He was ill and missed many lessons, so he did not make greater progress. c. 表示對將來的假想 句型： 條件從句 主句一般過去時 should+ 動詞原形were+ 不定式 would + 動詞原形should+ 動詞原形 If you succeeded, everything would be all right. If you should succeed, everything would be all right. If you were to succeed, everything would be all right.wish的用法 用于wish后面的從句，表示與事實相反的情況，或表示將來不太可能實現的愿望。其賓語從句的動詞形式為：真實狀況 wish后 從句動作先于主句動詞動作 現在時 過去時（be的過去式為 were） 從句動作與主句動作同時發生 過去時 過去完成時（had + 過去分詞） 將來不大可能實現的愿望 將來時 would/could + 動詞原形 I wish I were as tall as you. 我希望和你一樣高。

He wished he hadn't said that. 他希望他沒講那樣的話。 I wish it would rain tomorrow. 我希望明天下雨就好了。