12 记忆大比拼 看看你记住了几项视频中 出现的活动，说对一项获 得一分奖励。 What did they do yesterday?3 快速反应 说出下列各词的过去式(past form) 1 play- 1 recite- 2 look- 2 live- 3 perform- 3 like- 4 miss- 4 use- 5 wash- 5 dance- played lived performed liked looked washed missed recited danced used 一般在动词原形末尾加 一般在动词原形末尾加 ed ed 结尾是 e 的动词加 d4 快速反应 说出下列各词的过去式 1 plan- 1 try- 2 beg- 2 cry- 3 fit- 3 carry- 4 shop - 4 worry- 5 stop- 5 study- planned cried fitted worried carried begged stopped studied tried shopped 末尾只有一个辅音字母的 重读闭音节词，双写这个 辅音字母后加 ed 末尾是
