虛擬語氣在條件狀語從句中用法

1、關(guān)于虛擬語氣在條件狀語從句中的用法第一張，PPT共八頁，創(chuàng)作于2022年6月表示對現(xiàn)在情況的虛擬從句：If+主語+過去式(be動詞用were)主句：主語+ should/would/might/could+動詞原形：1If I were you,I would take an umbrella.如果我是你，我會帶把傘。（事實：我不可能是你）2If I knew his telephone number,I would tell you.如果我知道他的電話號碼，我就會告訴你。（事實：不知道）3If there were no air or water,there would be no livi

2、ng things on the earth.如果沒有水和空氣，地球上就不會有生物。(事實：地球上既有空氣也有水)4If I had any money with me,I could lend you some.如果我?guī)уX了，我就會借給你些。（事實：沒有帶錢）5If he studied harder,he might pass the exam.如果他再努力些，就能通過考試了。（事實：沒有努力）第二張，PPT共八頁，創(chuàng)作于2022年6月表示對將來情況的虛擬從句：if+主語+were to do if+主語+should+do if+主語+過去式（be動詞用were）主句：主語+should

3、/would/might/could+動詞原形1If he should come here tomorrow,I would talk to him.如果他明天來這兒的話，我就跟他談?wù)劇＃ㄊ聦崳簛淼目赡苄院苄?，不可能?If there were a heavy snow next Sunday,we would not go skating.如果下周日下大雪，我們就不能去滑冰了。（事實：下雪可能性很小，不可能）3If she were to be here next Monday,I would tell her about the matter.如果她下周一來這兒的話，我就會告訴她這件事

4、的始末。（事實：來的可能性很小，不可能）第三張，PPT共八頁，創(chuàng)作于2022年6月表示對過去情況的虛擬從句：If+主語+過去完成時主句：主語+should/would/might/could+have done1 If I had got there earlier,I should/would have met her. 如果我早到那兒，我就會見到她。（事實：去晚了）2If he had taken my advice,he would not have made such a mistake. 如果他聽我的勸告的話，就不會犯這樣的錯誤了。（事實：沒有聽我的話）3. He wouldnt h

5、ave been fired if he had not spoken so rudely to the boss. 假如他不是那么粗魯?shù)馗习逭f話，他就不會被解雇了。（事實：他已經(jīng)被解雇）第四張，PPT共八頁，創(chuàng)作于2022年6月錯綜條件句 虛擬條件句中，結(jié)果主句和條件從句的謂語動作若不是同時發(fā)生時，虛擬語氣的形式應(yīng)作相應(yīng)的調(diào)整。這種條件句叫錯綜條件句。 從句的動作與過去事實相反，而主句的動作與現(xiàn)在或現(xiàn)在正在發(fā)生的事實不符。（假如過去。 現(xiàn)在就會。 過去和現(xiàn)在都是與實際不符的）eg：If I had worked hard at school,I would be an engineer,t

6、oo.如果我在學(xué)校學(xué)習(xí)刻苦的話，我現(xiàn)在也會成為一個工程師了If they had informed us,we would not come here now.如果他們通知過我們的話，我們現(xiàn)在就不會來這里了。第五張，PPT共八頁，創(chuàng)作于2022年6月錯綜條件句從句的動作與現(xiàn)在事實相反，而主句的動作與過去事實不符。（假如現(xiàn)在。 那過去就已經(jīng)。） 如：If he were free today,we would have sent him to Beijing.如果他今天有空的話，我們就已經(jīng)派他去北京了。If he knew her,he would have greeted her.要是他認識她的話，他肯定會去問候她了。第六張，PPT共八頁，創(chuàng)作于2022年6月倒裝語序 當(dāng)虛擬條件句的謂語動詞含有were,should,had時，if可以省略，這時條件從句要用倒裝語序，即把were,should,had等詞置于句首，這種多用于書面語。eg：Should he agree to go there,we would send him there.要是他答應(yīng)去的話，我們就派他去。Had he learnt about computers,we would have hired him to work here.如果他懂一些電腦知識的話，我們已經(jīng)聘用他來