题干

为了比较水和沙子吸热本领的大小,小明做了如图所示的实验:在两个相同的烧杯中分别装有质量、初温都相同的水和沙子,用两个相同的酒精灯对其加热,实验数据记录如下:


质量/g

温度升高10℃所需要的时同/s

温度升高20℃所需要的时间/s

温度升高30℃所需要的时间/s

沙子

30

64

89

124

30

96

163

220

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    People from every corner flooded into the streets that Christmas Eve. "Frosty the Snowman," and "Jingle Bells" 1 in stores; on the pavements, the street singers performed happily. Everyone was 2 by someone else, delighted and cheerful. I was alone.

    As one of 8 kids of a Brazilian family, brought up in America's crowded apartment, I'd spent several years searching for aloneness. Now,3, at 27, a college student after the 4 with my girlfriend, every cell inside me wanted to be alone,5  not at Christmas. My family had 6to Brazil and my friends were 7with their own lives. Dusk was approaching, and the fact that I had to return to my 8 home made me sad. Lights from windows blinked (闪烁), and I hoped someone would 9 from one of those homes to invite me inside with a Christmas tree decorated with shiny fake snow and 10 presents.

    At a market, I felt more 11 when people were buying lots of goods, which12 the gifts we received as children in my mind. I missed my family and wanted to cry for wanting to be alone and for having achieved it.

    Outside the church, a manger (小耶稣) had been set 13. I stood with others watching the scene, some of them 14 themselves, praying. As I walked home, I realized that leaving Brazil was still a painful experience as I struggled with 15 I had become in 15 years in America. I'd mourned (悲叹) the 16, but for the first time, I recognized what I'd gained. I was independent, 17 and healthy. My life was still ahead, full of 18.

    Sometimes the best gift is the one that you give yourself. That Christmas, I gave myself 19 for what I'd obtained up to now and promise to go forward. It is the best gift I've ever got, the one that I most 20.