六年级下册英语课件-Unit 1I went to Sanya for myholidays.人教精通版(共13张PPT).pptx

课题：难点名称：理解一般过去式的用法及动词词尾的规则变化。1六年级-下册-第一单元目录目录CONTENTS2导入知识讲解课堂练习小节3pastnowfuture） Good moring , everyone! Im Li Yan. Let me tell you how we learnd English? There years ago ,we began to learn english. Our English teacher taught us in many ways ,so we were very interested in English lessons.We often sang, danced, danced ,chanted and played games.Our teacher usually let us do things by ourselves. We did interesting tasks.1.1.表示表示过去某一时间过去某一时间发生的动作或存发生的动作或存在的状态或在的状态或过去经常、反复过去经常、反复发生的动发生的动作。作。常与常与yesterday,last week , just yesterday,last week , just now, two years agonow, two years ago等时间状语连用。等时间状语连用。知识讲解6一般情况观察单词，发现规律learn-learnedchant-chanted一般情况下直接在动词原形后面+ed成过去式知识讲解7一般情况观察单词，发现规律dance-danceduse-used以不发音e结尾的动词，直接在动词词尾+d构成过去式。知识讲解8一般情况观察单词，发现规律stop-stopped以一个辅音字母结尾的重读闭音节动词，双写辅音词尾字母，再+ed构成过去式。知识讲解9观察单词，发现规律study-studiedcarry-carried以辅音字母加y结尾的动词，变y为i再加ed构成过去式。知识讲解10不规则变化不规则变化观察单词，发现规律begin-beganteach-taughtsing-sang11发音规则清辅音后读作t；浊辅音和元音后读作d;动词词尾是t和d后面读作id.【课堂练习】【课堂练习】We _to learn English three year ago.A.begin B.began C.beginsI _very tired last night.A.is B.was C.areI _TV yesterday.A.watched B.watch C.watchesI _lunch just now.A.have B.has C.hadBBAc【课堂小结】【课堂小结】1,1,一般过去式的含义以及常用的关联词有哪些？一般过去式的含义以及常用的关联词有哪些？yesterday,last week , just now, two years agoyesterday,last week , just now, two years ago2.2.动词过去式的变化规则。动词过去式的变化规则。 一般情况下直接在动词原形后面+ed成过去式。 以不发音e结尾的动词，直接在动词词尾+d构成过去式。 以一个辅音字母结尾的重读闭音节动词，双写辅音词尾字母，再+ed构成过去式。 以辅音字母加y结尾的动词，变y为i再加ed构成过去式。