备战2021届高考英语---时态之将来完成时讲练（三）

备战2021年高考英语——时态之将来完成时（三） 将来完成时用来表示在将来某一时间以前已经完成或一直持续的动作。经常与before+将来时间或by+将来时间连用，也可与before或by the time引导的现在时的从句连用。 一、将来完成时的结构 will/shall+have+完成式用于第一人称，will+have+完成式用于其他人称。 实例 a. 状态完成：表示某事继续到将来某一时为止一直有的状态。 b. 动作完成：表示将来某一时或另一个将来的动作之前，已经完成的动作或已获得的经验。 They will have been married for 20 years by then. You will have reached Shanghai by this time tomorrow.   二、将来完成时的构成 将来完成时的构成是由"shall/will + have +过去分词"构成的。 Before long he will have forgotten all about the matter. 不久他就会全然忘记这件事的。 He is somebody now. He will not have remembered his old classmates. 他现在是一个有身份的人了，他可能不会记得老同学了。 Will you have known Kevin for 10 years next month? 到下个月你认识凯文该有10年了吧？   三、将来完成时的用法 ①表示在将来某一时间之前已完成的动作，并往往对将来某一时间产生影响。 We shall have learned 12 units by the end of this term. 到这个学期末，我们将学完12个单元。 By the time you get home I will have cleaned the house from top to bottom. 你到家之前我将把房子彻底打扫一遍。 ②表示推测，相当于"must have done"结构。 You will have heard of this, I guess. 我想你已经听说过这件事了。 I am sure he will have got the information. 我相信他一定得到了这个信息 ③.表示某种状态一直持续到说话人所提及的时间 we will have been married a year on june 25th 到6月25日我们俩结婚就满1年了。 四、搭配 1. 用作状语的介词短语 There will have been a definite result before Friday. 星期五以前将肯定会有结果。 By next Christmas we'll have been here for eight years. 到下一个圣诞节，我们在这儿就住了整8年了。 By now you will have guessed that I'm back in Ireland. 你现在应该已经猜出我回到了爱尔兰了。 By the end of next week, I will have been a teacher for 25 years. 到下周末，我当老师就有25年了。 We'd better wait till 14 December. David will have had his exam by then, so he'll be able to enjoy himself. 我们最好还是等到12月14日。到那时大卫就考完试了，这样他就能够玩得痛快。 2. 用作状语的从句 If I don't run, the train will have left.(www.yygrammar.com) 如果我不跑，火车就会开走了。 If he turns it down, he will have lost the moral high ground to the president. 如果他拒绝的话，就会把精神上的优势输给总裁。 If you finish this job as well, you will have done far more than I expected. 假如你将这项工作干完的话，那你会干得比我预料的要多了。 If there was any scandal in that company, you can be sure that Bobby will have clocked it. 那家公司有任何丑闻，博比肯定会知道。 巩固练习 11. “Are Alice and Tom still living in N