Unit14将来完成时.ppt

将来完成时 Future perfect tense 1.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 o’clock 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 (live—lived) 辅音字母+y结尾, y变为i加ed study→studied, cry→cried 重读闭音节,双写结尾辅音字母+ed (stop---stopped) 不规则变化(记忆) do—done go—gone come--come 3.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+ will No,代词+ will not will 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.