将来完成时Future perfect tense1.含义： 在将来某时间之前已经完成的动作，并对此后有影响 明天上课之前，汤姆已经写完作业了 Tom will have done his homework before we have class tomorrow.将来的将来将来现在写作业明天上课2.句子结构 主语+will have + 动词过去分词 They will have cleaned the room by 8 oclock tomorrow. I will have been here for 2 years by the end of this year.动词过去分词+ed规则 直接加ed 结尾是不发音的e, 加d (livelived) 辅音字母+y结尾, y变为i加edstudystudied, crycried 重读闭音节,双写结尾辅音字母+ed(stop-stopped) 不规则变化(记忆)dodone gogone come-come3.变否定句 主语+will have + 动词过去分词 主语+will not have+ 动词过去分词 They will not have cleaned the room. The boy will not have broken the window.4.变疑问句(一般疑问句、特殊疑问句)一般疑问句 主语+will have + 动词过去分词 will +主语 + have+动词过去分词?Yes,代词+ willNo,代词+ will notwill you have been here for 2 years?4.变疑问句(一般疑问句、特殊疑问句) 特殊疑问句 特殊疑问词+一般疑问句结构? What will you have decided to do ? Where will you have been?5.标志：时间状语来判定 与过去完成时连用的时间状语有： 1 ） by + 将来的时间点 I will have finished reading by 9 oclock tomorrow night. 2 ） by the end of +将来的时间点 We will have learned 2000 words by the end of this term. 3 ） before +将来的时间点 They will have planted 600 trees before next Wednesday. 4） when+将来的时间点 I will have eaten an apple when you come back later.