四年级下册知识梳理UNIT 1一. 词型转换.1.library（复数）libraries 2.first(基数词)one 缩写1st3.our（主格）we 4.visitor（动词）visit5.there（对应词）here 6.class（复数）classes7.beautiful(同义词)nice 8.light(反义词) heavy9.this （对应词）that 10.my（主格） I11.your(主格) you 12.second(基数词) two13.yes（反义词）no 14.it（复数）them二重点句子。1. Where is the canteenart room? 餐厅绘画教室在哪里？ Its on the firstsecond floor. 它在一楼
