Unit-14-将来完成时(课堂PPT).ppt

将来完成时将来完成时Future perfect tense11.1.含义：含义：在在将来某时间之前将来某时间之前已经已经完成完成的动作，并对此后有的动作，并对此后有影响影响明天上课之前，汤姆已经写完作业了Tom will have done his homework before we have class tomorrow.将来的将来将来的将来将来将来现在现在写作业写作业明天上课明天上课22.2.句子结构句子结构主语主语+will have+will have+动词过去分词动词过去分词They will have cleaned the room by 8 They will have cleaned the room by 8 oclock tomorrow.oclock tomorrow.I will have been here for 2 years by I will have been here for 2 years by the end of this year.the end of this year.3动词过去分词动词过去分词+ed+ed规则规则直接加ed结尾是不发音的e,加d (livelived)辅音字母+y结尾,y变为i加ed studystudied,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-come43.变否定句变否定句主语主语+will have+will have+动词过去分词动词过去分词主语主语+will+will notnot have+have+动词过去分词动词过去分词They will They will notnot have cleaned the room.have cleaned the room.The boy The boy will not havewill not have broken the broken the window.window.54.4.变疑问句变疑问句(一般疑问句、特殊疑问句一般疑问句、特殊疑问句)一般疑问句一般疑问句主语主语+will have+will have+动词过去分词动词过去分词willwill+主语主语+have+have+动词过去分词动词过去分词?Yes,代词+will No,代词+will notwillwill you have been here for 2 years?you have been here for 2 years?64.4.变疑问句变疑问句(一般疑问句、特殊疑问句一般疑问句、特殊疑问句)特殊疑问句特殊疑问句特殊疑问词特殊疑问词+一般疑问句结构一般疑问句结构?What will you have decided to do?Where will you have been?75.5.标志：标志：时间状语来判定与过去完成时连用的时间状语有：1 1）by+by+将来的时间点将来的时间点 I will have finished reading by 9 oclock tomorrow night.2 2）by the end of+by the end of+将来的时间点将来的时间点We will have learned 2000 words by the end of this term.3 3）before+before+将来的时间点将来的时间点They will have planted 600 trees before next Wednesday.4）when+when+将来的时间点将来的时间点I will have eaten an apple when you come back later.8