2629初中英语语法复习——现在完成时课件[共46页]

Tomislookingforhiskeytohisbike.Hecan’tfindit.Hehaslosthiskeytohisbike.Helostitashorttimeagoandhestilldoesnthaveit.Hecan’tridehisbiketogotoschool.Helooksworried.DefinitionDefinition2.过去某一时间点发生的动作持续到现在或还将持续下去。1.过去某一时间点发生的动作对现在产生影响。IhavelearnedEnglishfortenyears.IhavelearnedEnglishfortenyears.Wehavevisitedyourschoolbefore.Wehavevisitedyourschoolbefore...