虛擬語(yǔ)氣在條件狀語(yǔ)從句中用法

1、關(guān)于虛擬語(yǔ)氣在條件狀語(yǔ)從句中的用法第一張，PPT共八頁(yè)，創(chuàng)作于2022年6月表示對(duì)現(xiàn)在情況的虛擬從句：If+主語(yǔ)+過(guò)去式(be動(dòng)詞用were)主句：主語(yǔ)+ should/would/might/could+動(dòng)詞原形：1If I were you,I would take an umbrella.如果我是你，我會(huì)帶把傘。（事實(shí)：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(hào)碼，我就會(huì)告訴你。（事實(shí)：不知道）3If there were no air or water,there would be no livi

2、ng things on the earth.如果沒(méi)有水和空氣，地球上就不會(huì)有生物。(事實(shí)：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(qián)了，我就會(huì)借給你些。（事實(shí)：沒(méi)有帶錢(qián)）5If he studied harder,he might pass the exam.如果他再努力些，就能通過(guò)考試了。（事實(shí)：沒(méi)有努力）第二張，PPT共八頁(yè)，創(chuàng)作于2022年6月表示對(duì)將來(lái)情況的虛擬從句：if+主語(yǔ)+were to do if+主語(yǔ)+should+do if+主語(yǔ)+過(guò)去式（be動(dòng)詞用were）主句：主語(yǔ)+should

3、/would/might/could+動(dòng)詞原形1If he should come here tomorrow,I would talk to him.如果他明天來(lái)這兒的話，我就跟他談?wù)劇＃ㄊ聦?shí)：來(lái)的可能性很小，不可能）2If 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(shí)：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(lái)這兒的話，我就會(huì)告訴她這件事

4、的始末。（事實(shí)：來(lái)的可能性很小，不可能）第三張，PPT共八頁(yè)，創(chuàng)作于2022年6月表示對(duì)過(guò)去情況的虛擬從句：If+主語(yǔ)+過(guò)去完成時(shí)主句：主語(yǔ)+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(huì)見(jiàn)到她。（事實(shí)：去晚了）2If he had taken my advice,he would not have made such a mistake. 如果他聽(tīng)我的勸告的話，就不會(huì)犯這樣的錯(cuò)誤了。（事實(shí)：沒(méi)有聽(tīng)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(shuō)話，他就不會(huì)被解雇了。（事實(shí)：他已經(jīng)被解雇）第四張，PPT共八頁(yè)，創(chuàng)作于2022年6月錯(cuò)綜條件句 虛擬條件句中，結(jié)果主句和條件從句的謂語(yǔ)動(dòng)作若不是同時(shí)發(fā)生時(shí)，虛擬語(yǔ)氣的形式應(yīng)作相應(yīng)的調(diào)整。這種條件句叫錯(cuò)綜條件句。 從句的動(dòng)作與過(guò)去事實(shí)相反，而主句的動(dòng)作與現(xiàn)在或現(xiàn)在正在發(fā)生的事實(shí)不符。（假如過(guò)去。 現(xiàn)在就會(huì)。 過(guò)去和現(xiàn)在都是與實(shí)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(huì)成為一個(gè)工程師了If they had informed us,we would not come here now.如果他們通知過(guò)我們的話，我們現(xiàn)在就不會(huì)來(lái)這里了。第五張，PPT共八頁(yè)，創(chuàng)作于2022年6月錯(cuò)綜條件句從句的動(dòng)作與現(xiàn)在事實(shí)相反，而主句的動(dòng)作與過(guò)去事實(shí)不符。（假如現(xiàn)在。 那過(guò)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(rèn)識(shí)她的話，他肯定會(huì)去問(wèn)候她了。第六張，PPT共八頁(yè)，創(chuàng)作于2022年6月倒裝語(yǔ)序 當(dāng)虛擬條件句的謂語(yǔ)動(dòng)詞含有were,should,had時(shí)，if可以省略，這時(shí)條件從句要用倒裝語(yǔ)序，即把were,should,had等詞置于句首，這種多用于書(shū)面語(yǔ)。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(shí)的話，我們已經(jīng)聘用他來(lái)