【病句诊断】

You could improve your conditions by running every day.

每天跑步可以增强你的健康。

【诊断辨析】

Condition作为“健康状况”解时，为不可数名词，无复数形式。作“条件”讲时，为可数名词。如：Find out what the conditions of the contract are. 弄清楚合同的条件是什么。

【诊断结果】

You could improve your condition by running every day.

【举一反三】

He's in excellent condition for a man of his age.

他就其年龄而言, 身体极好。

I've had no exercise for ages; I'm really out of condition.

我已多时没运动了, 现在健康状况欠佳。

She's in no condition to travel.

她的身体状况不甚健康不宜旅行。