english是可数名词吗

　　例句：

　　What books have been set for the English course?

　　英语课布置要用哪些书？

　　All students without exception must take the English examination.

　　所有学生都必须参加英语考试，无一例外。

　　She asked me if I would give her English lessons.

　　她问我愿不愿意给她上英语课。

　　I need to improve my English.

　　我需要提高我的英语水平。