1、现在完成时现在完成时（一）（一）现在完成时定义现在完成时定义三要素：1.表示到现在为止已经完成或刚刚完成的动作。2.一件发生在过去的事情对现在产生影响。3.一个动作开始于过去，并持续到现在（也许还将持续下去）。2012started learning English2020learning8 yearshave learned EnglishI started learning English in 2012.I am learning English these days.I have learned English for 8 years.（一般过去时）（现在进行时）（现在完成时）现在完成
2、时构成肯定句：主语+have/has+过去分词+.否定句:主语+havent(have not)+过去分词 主语+hasnt(has not)+过去分词.疑问句:Have/Has+主语+过去分词.?I havent finished my homework.Have you finished your homework?I have finished my homework.结构请找出漫画中现在完成时请找出漫画中现在完成时表达的句子！对比画圈的表达的句子！对比画圈的单词，你能总结出他们的单词，你能总结出他们的用法吗？用法吗？看漫画找规律看漫画找规律Dont touch that door.I
3、have just painted it.The paint has not yet dried.Jack has already touched it.Oh no!How many times have I told you to keep out of your fathers way while hes painting?Go and play outside until he has finished.易错点11)表示到现在为止已经完成或刚刚完成的动作。By now,I have collected all the data I need.Now we have planted all
4、 the trees.现在完成时的三大用法现在完成时的三大用法2)表示过去发生的动作,强调结果或对现在的影响。Someone has broken the window.I have just cleaned my hands.(窗户现在是坏的)(手是干净的)3)表示从过去开始并持续到现在的动作或状态。She has learned English for 5 years.He has lived in Beijing since he was born.易错点2(1)一般动词，在词尾直接加“ed”。work-worked-worked (2)以“e”结尾的动词，只在词尾加“d”。live-l
5、ived-lived(3)以“辅音字母+y”结尾的动词，将“y”变为“i”，再加“ed”。study-studied-studied (4)重读闭音节结尾，末尾只有一个辅音字母，先 双写该辅音字母，再加“ed”。drop-dropped-dropped 过去分词的规则、不规则变化规则变化A.过去分词与过去式形式一样havehadhad spend spentspent makemademade saysaidsaid findfoundfound hearheardheard meetmetmet leaveleftleft不规则变化B.过去分词与过去式形式不一样taketooktaken s
6、peak spokespoken singsangsung drivedrovedriven bewas/werebeen gowentgone 不规则变化C.过去分词、过去式与动词原形一样cutcutcutput putput letletletreadreadread 不规则变化易错点3现在完成时的时间状语already意为意为“已经已经”，一般用于一般用于肯定句肯定句yet意为意为“已经已经”，一般用于一般用于否定句和疑问句否定句和疑问句Tom has already finished his homework.Tom hasnt finished his homework yet.ju
7、st(刚刚刚刚)，ever(曾经曾经)，never(从来没有从来没有)，常常放在助动词与过去分词之间放在助动词与过去分词之间。so far（到目前为止），常位于（到目前为止），常位于句尾句尾。I have just had my lunch.Have you ever eaten fish?I have never eaten fish.We havent found the missing boy so far.典例典例1 1The drama series The Thunder（破冰行动）（破冰行动）hits screens these days.Oh.What a pity！I_any of them yet.【2019镇江镇江】A.doesnt watch B.didnt watch C.wont watch.D.havent watched典例典例2 2Peter wont be surprised because I _ him the news already.【2019大连大连】A.toldB.will tellC.have toldD.am telling
