某中学生质量为50kg，每只脚与水平地面接触面积为200cm²，双脚站立时，他对水平地面的压强是____Pa.行走时脚对地的压强将____.(g取10N/kg)

    The boys had been shopping all morning and still weren't done. I1standing in the store.

    Just nine days before 2 Caitlin's house had burned to the ground. But Caitlin and her family all3 escaped.

    All the family 4 was what they were wearing and each other. The school was replacing their books and uniforms and now, two days after the 5all the girls in Caitlin's class were taking her shopping for clothes and shoes. The boys were shopping for6 like scarves, socks and hair ties, all the things they don't even 7

    After another hour, I had finished my8 and had helped the boys 9everything they wanted to get for Caitlin.

    When we got home, my brother brought everything he had10 for Caitlin to my room to make sure I thought she'd 11 everything before he12 them.

    “I think she'll love everything,” I said, and he smiled his big smile. I hugged him13 he tried to push me away. I was so14of him at that moment. He loves giving and making others 15 He's an honest kid who sees only the good in the world. I used to wonder how he could 16 see the good when there was so much bad, but now I 17why there is so much good18 him.

    He selflessly gave up all his 19for Caitlin. He had, through this act of a pure heart, got the true20 of Christmas.

故事中的这位“丈夫”是个怎样的人？举例分析其心理活动。