Do some animals have certain mental powers which human beings do not? Of course they have instincts(本能), but1this, I am sure that they can feel2things which we humans cannot. A personal experience3this to me.

    Some years ago, I had a dog named Howard. From the time that he was a baby dog, he was timid, so we named him 'Howard' to4with 'coward' (胆小鬼)! He was especially afraid of5. At the first hint of them, he would run crying into the house and hide under a table. What a hero!

   I often went for walks with Howard. 6, as we were walking along a road, it began to rain. I quickly ran to a bus­stop for7. The bus­stop had a roof supported by metal poles.Soon after I had got there, Howard caught my8in his teeth and tried to pull me away. 9,  I was puzzled and a little angry at his10.

    However, I decided to humour him and walked away from the shelter into the rain and11for home.

    12I was about two hundred metres away from the shelter, there came a blinding flash of lightning and13, there was a crash of thunder which nearly14me. Howard stopped walking and began crying. Knowing that he was afraid, I15to pick him up.

    As I straightened up, I16the bus shelter which we had just left. I was shocked to see that two of the17were bent and the roof was lying on the ground, 18. The shelter had been struck by the lightning. I gave Howard a big hug to express my heartfelt19. He had just saved my life.He was truly my20!

    When I was small and my grandmother died, I couldn't understand why I didn't cry. But that night when my dad tried to cheer me up, my laughter turned to tears.

    So it came as no surprise to learn that researchers believe crying and laughing are controlled by the same part of the brain. Just as laughing has many health advantages, scientists are discovering that so does crying.

    Whatever helps us to reduce pressure is important to our emotional health, and crying seems to work well. One study found that 85 percent of women and 73 percent of men reported feeling better after crying.

    Besides, tears attract help from other people. Researchers agree that when we cry, people around us become kinder and friendlier and they are more ready to provide support and comfort. Tears also enable us to understand our emotions better; sometimes we don't even know we're very sad until we cry. We learn about our emotions through crying, and then we can deal with them.

    Just as crying can be healthy, not crying—holding back tears of anger, pain or suffering—can be bad for physical health. Studies have shown that too much control of emotions can lead to high blood pressure, heart problems and some other illness. If you have a health problem, doctors will certainly not ask you to cry. But when you feel like crying, don't fight it. It's a natural and healthy emotional response.

①现在越来越多的人喜欢养宠物，宠物正受到很多人的青睐。

②养宠物有什么好处？

③养宠物应该注意什么？