the boys put up their tent in the middle of a field.这里tent为什么不用tents?答案解析: tent 为这些男孩们共有的帐篷, 只有一个帐篷,因为有形容词物主代词修饰了tent 因此前面不能加a ,也不能在该名词后加s变为复数,尽管只有一顶帐篷,满意,请立即采纳,谢谢!tent 英[tent] 美[tɛnt] n. 1.帐篷,帐棚 2.帐, 罩 名词 n.1.帐篷,帐棚 The children had a midnight feast in their tents.孩子们半夜在帐篷里饱餐了一顿。2.帐, 罩 Put a tent over his legs to stop them being rubbed by the sheets.给他的腿盖上罩子, 以免被床单摩擦。