人教版七年级上册英语Unit7 How much are these socks暑假预习学案（含练习题及答案）

人教版七年级上册英语Unit7 How much are these socks暑假预习学案基础知识单词much adj.许多 much+不可数名词 many+可数名词复数How much 多少（钱、