將來完成時(shí)概念：

將來完成時(shí)用來表示在將來某一時(shí)間以前已經(jīng)完成或一直持續(xù)的動(dòng)作。經(jīng)常與before+將來時(shí)間或by+將來時(shí)間連用，也可與before或by the time引導(dǎo)的現(xiàn)在時(shí)的從句連用。

將來完成時(shí)的構(gòu)成與用法：

（一）構(gòu)成：will/shall have+過去分詞： 　　
如：We hope it will have stopped raining before we set off for the picnic. 我們希望在出發(fā)去野餐以前雨就已經(jīng)停了。
I'll have done all the work by the time you are back this evening. 你們今晚回來的時(shí)候我就將做完所有的工作了。 　　
（二）用法： 　　
1、表示在將來某一時(shí)刻將完成或在另一個(gè)未來的動(dòng)作發(fā)生之前已經(jīng)完成的動(dòng)作。 　　
注意：常與將來完成時(shí)連用的時(shí)間狀語有：
①by(the time/the end of)+表示將來時(shí)間的短語和句子； 　　
②before(the end of)+表示將來時(shí)間的詞語或句子； 　　
③when, after等加上表示將來動(dòng)作的句子等。
例如：By the year 2050, scientists probably will have discovered a cure for cancer.
到2050年，科學(xué)家們可能已經(jīng)找到治愈癌癥的方法了。 　　
By the time you arrive in London, we will have been staying in Europe for two weeks. 　　
等你到達(dá)倫敦的時(shí)候，我們將已經(jīng)在歐洲呆了兩星期了。 　　
2、在時(shí)間從句和條件從句中，現(xiàn)在完成時(shí)可以代替將來完成時(shí)，表示將來某時(shí)業(yè)已完成的動(dòng)作。
例如：You'll get to like the subject after you have studied it for some time. 　　
在學(xué)習(xí)這個(gè)學(xué)科一段時(shí)間之后，你就會(huì)喜歡它的。 　　
I'll go and see the exhibition as soon as I have finished my work. 我一做完作業(yè)就去看展覽。 　　
3、將來完成時(shí)還可以表示"可能性"，或"設(shè)想"。
例如：It's five o'clock, they will have arrived home by now. 已經(jīng)五點(diǎn)鐘了，他們現(xiàn)在應(yīng)該已經(jīng)到家了。

將來完成時(shí)與一般將來時(shí)的比較： 　　

1、有具體的時(shí)間狀語要用一般將來時(shí)。
如：Mr Smith will return home on the first Sunday next month. 史密斯先生將于下月的第一個(gè)星期日回家。 　　
2、將來完成時(shí)的時(shí)間狀語一般用介詞by引入。
如：Mr Smith will have returned home by next month. 到下個(gè)月史密斯先生將已回到家了。 　　

典例精析： 　　
1、They_____on the program for almost one week before I joined them, and now we_____it as no good results have come out so far.　　
A. had been working; are still working
B. had worked; were still working 　　
C. have been working; have worked
D. have worked; are still working 　　
答案：A。 　　
解析：不難看出第一空的動(dòng)作發(fā)生在I joined them以前，且持續(xù)了一個(gè)周，應(yīng)該用過去完成進(jìn)行時(shí)；and now說明下面的動(dòng)作仍在進(jìn)行之中，應(yīng)該用現(xiàn)在進(jìn)行時(shí)。故選A。 　　
2、Father_____for London on business up on my arrival, so I didn't see him.　　
A.has left
B.left
C.was leaving
D.had left 　　
答案：D。 　　
解析：由"I didn't see him"可知父親在我回來以前已經(jīng)離開，動(dòng)作發(fā)生在過去某個(gè)動(dòng)作以前，故選用過去完成時(shí)。 　　
3、The policeman's attention was suddenly caught by a small box which_____placed under the Minister's car.　
A. has been
B. had been
C. was being
D. would be　
答案：B。

相關(guān)高中英語知識(shí)點(diǎn)：將來完成時(shí)的被動(dòng)語態(tài)

將來完成時(shí)的被動(dòng)語態(tài)的概念：

將來完成時(shí)被動(dòng)語態(tài)表示相對(duì)于現(xiàn)在來說將要完成的被動(dòng)性動(dòng)作。

將來完成時(shí)的被動(dòng)語態(tài)的用法：

將來完成時(shí)被動(dòng)語態(tài)有兩種形式：表示從現(xiàn)在看在將來某一時(shí)間之前完成的被動(dòng)動(dòng)作，用將來完成時(shí)的被動(dòng)語態(tài)；
表示從過去看在將來某個(gè)時(shí)候以前發(fā)生的被動(dòng)動(dòng)作，用過去將來時(shí)的被動(dòng)語態(tài)。
1、一般將來完成時(shí)的被動(dòng)語態(tài)：構(gòu)成：will/shall+have+been+done ：
例如：My homework will have been finished when you arrive tomorrow. 明天你到的時(shí)候，我的作業(yè)會(huì)已經(jīng)做完了。
The problem will have beensolved by him. 這個(gè)問題將已經(jīng)被他解決了。
The project will have been completed before July.
This oil field will have been opened by the end of next month. 到下月底為止，這塊油田將被開采。
析：該句表示相對(duì)于現(xiàn)在來說的下月底這塊油田將被開采。

2、過去將來完成時(shí)的被動(dòng)語態(tài)：構(gòu)成：would+have+been+done
例如：He told his mother his homework would have been finished by ten o'clock. 他告訴他媽媽，他的家庭作業(yè)十點(diǎn)能完成。
析：該句表示相對(duì)于他告訴他媽媽時(shí)來說，他的家庭作業(yè)將于十點(diǎn)鐘被完成。
試比較：This car will have been driven by Smith for five years by next month. 到下個(gè)月，這輛汽車將由史密斯駕駛五年了。 　　
John said the letter would have been finished by supper. 約翰說那封信將在晚飯之前寫完。 　　
【考例】The rice_____if you had been more careful.(MET1988) 　　
A. would not be burning 　　
B. would not burn 　　
C. would not have been burnt 　　
D. would not burnt
析：本題考查的是過去將來完成時(shí)的被動(dòng)語態(tài)，答案為C。

將來完成時(shí)被動(dòng)語態(tài)與過去將來完成時(shí)被動(dòng)語態(tài)用法區(qū)別： 　　

將來完成時(shí)被動(dòng)語態(tài)表示相對(duì)于現(xiàn)在來說將要完成的被動(dòng)性動(dòng)作，而過去將來完成時(shí)被動(dòng)語態(tài)表示相對(duì)于過去某一時(shí)刻來說將要完成的被動(dòng)性動(dòng)作。 　　
例如：This oil field will have been opened by the end of next month. 到下月底為止，這塊油田將被開采。 　　
析：該句表示相對(duì)于現(xiàn)在來說的下月底這塊油田將被開采。 　　
例如：He told his mother his homework would have been finished by ten o'clock. 他告訴他媽媽，他的家庭作業(yè)十點(diǎn)能完成。 　　
析：該句表示相對(duì)于他告訴他媽媽時(shí)來說，他的家庭作業(yè)將于十點(diǎn)鐘被完成。

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