1、 語(yǔ)氣是一種動(dòng)詞形式,用以表示說(shuō)話者的意圖或態(tài)度.英語(yǔ)中有三種語(yǔ)氣：陳述語(yǔ)氣,疑問(wèn)語(yǔ)氣,虛擬語(yǔ)氣.
虛擬語(yǔ)氣定義：虛擬語(yǔ)氣表示所說(shuō)的話只是一種主觀愿望、假設(shè)或建議等.
2、 虛擬語(yǔ)氣的在條件句中的基本用法（此題是特殊用法,并不是在虛擬條件句中）：
1)與現(xiàn)在事實(shí)相反
主句時(shí)態(tài)：Should\would\could\might+do（動(dòng)詞原形）
從句時(shí)態(tài)：過(guò)去式（be動(dòng)詞各人稱都用were）
例句：If I were you,I should \would make full use of my time tostudy.
2)與過(guò)去事實(shí)相反
主句時(shí)態(tài)：Should\would\could\might+have done（動(dòng)詞過(guò)去分詞）
從句時(shí)態(tài)：Had+done(過(guò)去分詞)
例句：If you had come earlier,you would have met him.
3）與將來(lái)事實(shí)相反）
主句時(shí)態(tài)：Should\would\could\might+do（動(dòng)詞原形）
從句時(shí)態(tài)：1.過(guò)去式（be動(dòng)詞各人稱都用were） 2.should+動(dòng)詞原形 3.were to +動(dòng)詞原形
例句：If it should rain tomorrow,the crops would be saved.
3、特殊的虛擬語(yǔ)氣：過(guò)去的計(jì)劃打算愿望等未曾實(shí)現(xiàn)時(shí)的虛擬語(yǔ)氣
1)表過(guò)去愿望未曾實(shí)現(xiàn)時(shí),常用would like to have done sth.或would have liked to do sth.
would like to have done表示本來(lái)應(yīng)該已經(jīng)做了某事,實(shí)際上并沒(méi)有做.
would like to do 表示想要去做某事.實(shí)際上并沒(méi)有做,是一種愿望或者將來(lái)時(shí)的一種表達(dá)方式.
I would like to have gone to the celebration,but I couldn’t get away.我本來(lái)想?yún)⒓討c祝會(huì),但未能脫開(kāi)身.
I would like to go with you ,but I have to do my homework .
我本來(lái)想跟你去的,但是我要寫(xiě)作業(yè).
2） 表示過(guò)去本來(lái)該干某事但沒(méi)有干時(shí),用should\ought to have done sth.若表示本來(lái)不該干但卻干了某事時(shí),用should not\ought not to have done sth.
The criminal should have told the truth,but he refused to.那罪犯本來(lái)應(yīng)該說(shuō)出實(shí)情,但他不肯說(shuō).
3）表示過(guò)去本來(lái)有能力干某事,但未能干成時(shí)用could have done sth.
I could have lent you the money,but you did not turn to me for help.我本來(lái)能借給你那筆錢(qián),
4）表示過(guò)去本來(lái)有可能干某事,但未能干成時(shí)用might have done sth.
You might have been chosen,but you gave up the chance.你本來(lái)有可能被選上的,但你放棄了那個(gè)機(jī)會(huì).
5）表示過(guò)去本來(lái)愿意干某事,但未能干成時(shí)用would have done sth.
The cook would have helped you,but his wife stopped him.那廚師本來(lái)愿意幫助你,但他妻子制止了他.
4、本題解析：本題就是特殊虛擬語(yǔ)氣的一種,表示過(guò)去計(jì)劃未能實(shí)現(xiàn)的虛擬語(yǔ)氣,參考上面第三條里的第一點(diǎn),因?yàn)閎ut 后面是時(shí)態(tài)是過(guò)去時(shí)態(tài)didn't ,所以用would like to have done Sth ,表示過(guò)去本來(lái)想做了某事,但實(shí)際沒(méi)做!