【exercise的用法】exercise与exercises的区别及用法

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【答案】 exercise 可以是动词“锻炼”,如 He exercises every day. 此时,exercises 是 exercise 的单三形式.
　　exercise 也可以是名词.
　　 （1）“练习”,“操”可数名词 如 There are many exercises in the book.
　　 We should do eye exercises.
　　 （2）“锻炼”,不可数名词 如 Let's take exercise. 追答： 早操：morning exercises