精选优质文档-倾情为你奉上PEP版六年级英语下册unit1练习一、 写出下列形容词的比较级形式 (20分)big small long thin tall short heavy young old strong 二、 填空 (20分)1、 The red ruler is 20 cm . The yellow ruler is 10 cm.The yellow ruler is than the red ruler.2、 I am 160 cm tall. He is 170 cm tall.He is