Unit 1
tall—taller更高的short—shorter更矮的strong—stronger更强壮的old—older年龄更大的young—younger更年轻的big—bigger更大的heavy—heavier更重的long—longer更长的thin—thinner更瘦的small—smaller（体型）更小的
Unit 2
have a fever发烧have a sore throat喉咙疼have a cold感冒have a toothache牙疼have a headache头疼matter事情，麻烦sore疼的hurt疼痛nose鼻子tired疲劳的，累的excited兴奋的angry生气的happy高兴的bored无聊的，烦人的sad忧伤的，悲伤的
Unit 3
watch—watched看wash—washed洗clean—cleaned打扫play—played玩visit—visited看望do—did last weekend上一个周末go—went去go to a park—went to a park去公园go swimming—went swimming去游泳go fishing—went fishing去钓鱼read—read读go hiking—went hiking去郊游
Unit 4
leran Chinese—learned Chinese学汉语sing and dance—sang and danced唱歌和跳舞eat good food—ate good food吃好吃的食物take pictures—took pictures照相climb—climbed爬have—had buy presents—bought presents买礼物row a boat—rowed a boat划船see elephant—saw elephant看大象go skiing—went skiing去滑雪go ice-skating—went ice-skating去滑冰how怎么，如何get—got到达last上一个的，仅余的，留在后的
