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 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 have a toothache 牙疼
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 去远足
Unit 4
learn Chinese—learned Chinese学汉语 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，留在最后的
