现在完成时课件- 2023-2024学年人教版英语八年级下册

Present Perfect Tense 现在完成时 目录 Contents 1. 用法 2. 句型结构 3. already VS yet 4. have been to VS have gone to 5. 短暂性动词与延续性动词 I have read Alice in Wonderland. (Now I learn something about the book.) Sentences I have visited the Sanxingdui Site Museum. (Now I don’t want to visit it again.) Sentences I have done my homework. (I did my homework. Now I can play on my phone.) Sentences I have seen Kung Fu Panda. (I saw Kung Fu Panda in the past. Now I don’t want to see it again.) Sentences We have cleaned the classroom. (We cleaned the classromm. Now the classroom is every clean.) Sentences I have lent my Chinese book to Lihua. (I lent my Chinese book to Lihua. Now I don’t have the book to give you.) Sentences Sentences I have done my homework. I have seen Kung Fu Panda. I have visited the Sanxingdui Site Museum. She has done my homework. She has seen Kung Fu Panda. She has visited the Sanxingdui Site Museum. 现在完成时（Present Perfect Tense） 构成: 助动词have / has + 动词的过去分词 动词过去分词的构成 规则动词过去分词的构成和其过去式的构成相同， 如：finish → finished；live → lived; stop → stopped; study → studied等。 不规则动词的过去分词需要大家牢记。参见课本最后不规则动词表。 表示过去发生或已经完成的动作对现在造成的影响或结果，常与already(已经), just(刚刚), yet(已经), ever(曾经), never(从不), before(以前), so far(到目前为止)等连用或根据上下文语境判断。如： I have lost my pen. (我现在无钢笔可用) He has had a good education. (他的文化水平比较高) 1 用法一： I have had the scarf for two years. I have had the scarf since two years ago. Sentences 买了两年 I have had the toy bear for five years. I have had the scarf since five years ago. Sentences 表示过去某一时间开始并一直持续到现在(包括“现在”在内)的动作或状态，该用法中的动词多是延续性动词，常见的时态标志词有since接表示过去的时间点, for接一段时间等。如： I have studied here for three years. We have been here since last Sunday. 用法二： Sentences I have done my homework. I have seen Kung Fu Panda. I have visited the Sanxingdui Site Museum. She has done her homework. She has seen Kung Fu Panda. She has visited the Sanxingdui Site Museum. +not I haven’t done my homework. She hasn’t done her homework. I haven’t seen Kung Fu Panda. She hasn’t seen Ku