1、Unit 1younger更年轻的older更年长的taller更高的shorter更矮的longer更长的thinner更瘦的heavier更重的bigger更大的smaller更小的stronger更强壮的dinosaur恐龙hall大厅metre米than比both两个都kilogram千克countryside乡村lower更低的shadow影子smarter更聪明的become变成Unit 2cleaned打扫stayed待washed洗watched看had a cold感冒slept睡觉read读saw看last最近yesterday昨天before在之前drank喝show演出
2、magazine杂志better更好的faster更快的hotel旅馆fixed修理broken破损的lamp台灯loud大声的enjoy享受的乐趣stay暂住Unit 3went去camp野营went camping去野营fish钓鱼went fishing去钓鱼rode骑hurt受伤ate吃took拍照took pictures照相bought买gift礼物fell摔倒off落下Labour Day劳动节mule骡子Turpan吐鲁番could能till直到beach沙滩basket篮子part角色licked舔laughed笑Unit 4dining hall饭厅grass草坪gym体育馆ago以前cycling骑自行车运动go cycling去骑自行车ice-skate滑冰badminton羽毛球运动star星easy容易的look up查阅Internet互联网different不同的active活跃的race赛跑nothing没有什么thought想felt感觉cheetah猎豹trip绊倒woke醒dream梦
