根据文意及首字母提示补全短文。

      As everyone knows, not o____ fast walk but also slow walk does good to the muscles and lungs of human. So people walk to build up their bodies, or to lose w____. But only some of them know that taking a walk every day is also good for p____ people's hearts. Heart attack has become the first disease in the world b____ more and more people suffer from it.

    Taking a walk can improve the blood supply to our hearts. If you try to walk as o____ as possible, you'll have a healthier heart.

选词填空。

爱戴    爱抚    爱护

①妈妈____地为我梳理头发。

②王老师工作非常负责，深受同学们的____。

③我们要____校园的一草一木。