英语语句中,句子是 单三时,句中动词的 变化情况是什么?health 和 healthy 的区别是什么?

句子是单三的时候,一般的动词都加-s或-es
health名词
n. 健康,卫生,保健
Fresh air and exercise are good for the health.
新鲜空气和运动有益于健康.
It is believed that health is above wealth.
一般人都相信健康重于财富.
Smoking is not good for your health.
吸烟对你的健康没有好处.
Smoking is bad for health.
吸烟对身体有害.
healthy形容词
a. 健康的
His grandpa is healthy.
他的祖父身体健康.
Although my uncle is old, he looks very strong and healthy.
我的叔叔虽然老了,但他看上去还是很健壮