Unit 12 Life is full of the unexpected.过去完成时 1.用法:表示在过去某一时间或动作之前已经发生或完成了的动作,动作发生的时间为“过去的过去”. 它是一种相对的时态,即相对一般过去时而存在,没有一般过去时就没有过去完成时.He had learned two hundred English words by the end of last term.When they got to the field,the football match had already started.2.过去完成时用的标性的时间状语有：by then（直到那时）,by last month（直到上个月）,by last year（直以去年）,还有when,before,after,by the time（直到…的时候）等引导的从句(这些从句都是一般过去时)3.过去完成时的肯定句,否定句和疑问句的构成过去完成时的肯定句的构成是:主语+had+动词过去分词+其他. He had learned two hundred English words by the end of last term.过去完成时的否定句的构成是:主语+had+not+动词过去分词+其他.He hadn’t learned two hundred English words by the end of last term.过去完成时的一般疑问句的构成是:Had+主语+动词过去分词+其他. 肯定回答是Yes，主语+had 否定回答是No，主语+hadn’tHad he learned two hundred English words by the end of last term?Yes ,he had./No,he hadn’t选择题(1)She said she more than three hundred stamps.A.will collect B.has collected C.had collected(2)The student told me she the film twice.A.saw B.has seen C.had seen (3)Lucy in Hong Kong with us by the time her mother called her.A.had arrived B.has arrived C.arrives (4)After she her computer, she went to t |
