单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,*,动词过去式变化规则,动词过去式变化规则,一、规则变化1、一般情况下，动词词尾加-ed,如：workworked playplayed wantwanted askasked,一、规则变化1、一般情况下，动词词尾加-ed,如：w,2、以不发音的-e结尾动词，动词词尾加-d,如：livelived movemoved tastetasted,2、以不发音的-e结尾动词，动词词尾加-d,如：liv,3、以“辅音字母+y”结尾的动词，把y改成i,加ed,如：studystudie,d trytried copycopied carrycarried,3、以“辅音字母+y”结尾的动词，把y改成i,加ed,4,、重读闭音节动词，双写词尾辅音字母，,再加,ed,如：,stopstopped,4、重读闭音节动词，双写词尾辅音字母，,二、不规则变化,is amwas arewere dodid have had gowent meetmet comecame taketook stealstole eatate flyfliew runran seesaw saysaid makemade findfound standstood,二、不规则变化,sitsat singsang drinkdrank givegave ringrang swimswam,writewrote riderode drivedrove,drawdrew growgrew knowknew,sitsat singsang drinkdrank,getgot forgetforgot,sweepswept keepkept sleepslept,speakspoke breakbroke,telltold sellsold,buybought thinkthought catchcaught teachtaught buildbuilt,cancould shallshould willwould,过去式与动词原形一样：letlet mustmust putput readread,buybought thinkthought cat,三、动词过去式构成读音,1、清辅音后读清辅音t（清读清）如：jump like,2、浊辅音后读浊辅音d（浊读浊）如：listen pull,3、元音后面读浊辅音d（元音后面读浊音）如：water play,4、td后面读id want need,三、动词过去式构成读音,动词过去分词变化规则课件,12,以上有不当之处，请大家给与批评指正，谢谢大家！,12,