动词过去式变化规则（1）ppt课件.ppt

动词过去式,的变化规则,Read these sentences .1、Mary basketball last weekend.2、I reading books. 3、She at home and English.4、Lucy and a rest.5、I swimming the day before yesterday.,Played,liked,stayed,studied,stopped,had,went,1、 一般情况下在词尾直接加ed。如：play played 浊辅音后读 d work worked 清辅音后读 t,一、规则动词的变化,2、以e结尾的动词只加d. 如：like - liked 清辅音后读 t love - loved 浊辅音后读 d,3、以“辅音字母+y”结尾的动词， 变y为i，再加ed. 如：study studied carry carried 浊辅音后读 d,4、以重读闭音节结尾的动词，如果末尾只有一个辅音字母，要双写最后这个辅音字母，再加ed. 如：stop stopped 浊辅音后读 d,二、不规则动词的变化,如：am / is - was are - were have - had,1、Mother many pictures when she was in Zhejiang.A、takes C、taked2、I my room and my clothes yesterday.A 、clean wash C、 cleaned wash,B、took,B、 cleaned washed,Thank you,