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