unit 1
younger   (young的比较级)更年轻的
older   (old的比较级)更年长的
taller   (tall 的比较级)更高的
shorter   (short 的比较级)更矮的；更短的
longer   (long 的比较级)更长的
thinner   (thin 的比较级)更瘦的
heavier   (heavy的比较级)更重的
bigger   (big 的比较级)更大的
smaller   (small 的比较级)更小的
stronger   (strong 的比较级)更强壮的
cleaned   (clean 的过去式)打扫
stayed   (stay 的过去式)停留；待
washed   (wash的过去式)看
watched   (watch 的过去式)看
had   (have 的过去式)患病；得病
had a cold   感冒
slept   （sleep的过去式）睡觉
read   (read的过去式)读
saw   (see的过去式)看见
last   最近的；上一个的
yesterday   昨天
before   在……之前
went   （go 的过去式）去
camp   野营
went camping   （尤指在假日）野营
fish   钓鱼；捕鱼
went fishing   去钓鱼
rode   (ride的过去式)骑（马；自行车）
hurt   （hurt 的过去式）（使）受伤
ate   (eat 的过去式)吃
took   (take 的过去式)拍照
took pictures   照相
bought   (buy 的过去式)买
gift   礼物
dining hall   饭厅
grass   草坪
gym   体育馆
ago   以前
cycling   骑自行车运动（或活动）
go cycling   去骑自行车
ice-skate   滑冰
badminton   羽毛球运动








