牛津英语 小学总复习 一般过去时.ppt .ppt

一般过去时 1、定义：表示过去某个时间里发生的动作或存在的状态。常和表示过去的时间状语连用， 如：a moment ago，just now，yesterday，last week，this morning等。 如：My brother often went to school by bike last term. The watch was beside the diary a moment ago. I watched the moon and ate the moon cakes last Mid-Autumn Festival. Jim went to the supermarket yesterday. 2、构成：主语＋动词的过去式＋其他 3、动词过去式的变化规则： ?一般在动词原形末尾加ed 如：play-played，listen-listened，look-looked ?结尾是e的动词，加d 如：live-lived，like-liked，taste-tasted ?辅音字母＋y结尾的动词，变y为i，再加ed 如：study-studied，carry-carried，cry-cried ?末尾只有一个辅音字母的重读闭音节词，双写这个辅音字母，再加ed 如：stop-stopped，plan-planned ?不规则变化 如： am/is-was are-were have/has-had do-did go-went sit-sat tell-told see-saw get-got make-made give-gave read-read buy-bought come-came draw-drew eat-ate fly-flew meet-met put-put run-ran say-said sing-sang swim-swam take-took 4、一般过去时的句型转换