问题 综合

请就西藏独特的自然景观,神秘的雪域风光开展了探究学习。(8分)

(1)说明拉萨冬季、夏季的特点,与同纬度的杭州相比有什么不同?为什么不同?(4分)

(2)西藏地区主要支柱产业是什么?请从地形和气候角度加以分析?(4分)

答案

(1)冬季,拉萨的最低月气温在-2摄氏度左右,比杭州要低9摄氏度左右;夏季,拉萨的最高月气温在15摄氏度左右,比杭州的气温低15摄氏度左右。(海拔差异)地势不同

(2))畜牧业地形角度:地处“世界屋脊”的青藏高原,海拔高,太阳紫外线强,有利于牧草中蛋白质的合成;气候角度:气候以高原山地气候为主,昼夜温差大,有利于其他营养物质的积累

题目分析:

(1)拉萨地处青藏高原上,海拔高。冬季,拉萨的最低月气温在-2摄氏度左右,比同纬度的杭州要低9摄氏度左右;夏季,拉萨的最高月气温在15摄氏度左右,比杭州的气温低15摄氏度左右。造成这种差异的主要原因是拉萨的地势比杭州的要高很多。

(2)西藏地区主要支柱产业是畜牧业。西藏地处“世界屋脊”的青藏高原,海拔高,太阳紫外线强,有利于牧草中蛋白质的合成;由于海拔高,气候以高原山地气候为主,昼夜温差大,有利于其他营养物质的积累。所以西藏地区主要支柱产业是畜牧业。

点评:青藏地区的特征、气候、特色农业:

区域特征高寒
地形以高原、山地为主
气候高原山地气候
河湖中华水塔,三江源(长江、黄河、澜沧江的源头),最大的湖泊——青海湖。
植被高寒草地
牧场特色高寒牧场(青海和西藏)
畜种特色牦牛、藏绵羊(青海和西藏)
农业类型绿洲农业

单项选择题

It’s not easy to be an astronaut’s son. Everybody expects you to be special or perfect. I often wonder how my father ever had a son like me. I mean he’s so special and so good at everything he does. Even in middle school he was class president and captain of the football team.
Well, to be honest, I often dream about being some kind of hero or doing something special-like saving a child from a burning building or discovering a new star. I was daydreaming at school one morning when my teacher said there would be a Father’s Day writing competition for the whole school. "I hope we have a winner right here in my class. "
When I got home, I started to think about what to write. My father is an astronaut. No, I wouldn’t start like that. That was the way others saw him. How did I see my father Hmm.
I saw him sitting with me in the dark when I had a terrible dream. I remembered how he hugged me for hours when my dog Spotty was killed by a car. Yes, these were the things I was going to write. To me, he wasn’t just a world-famous astronaut. He was my dad.
My parents and I went to school Thursday night. There were so many people in the big hall! My dad looked at me, and I shrugged (耸肩).
The third prize was announced and it was not me. I was relieved (释然) and disappointed at the same time. The second prize was announced. It was me.
I went up to the stage and read what I had written, My Father’s Son. When I finished, the people stood up and cheered. I saw my father blowing his nose. Tears were running down my mother’s face. Dad cleared his throat and put his hand on my shoulder. "Son, this is the proudest moment of my life. "
It was the proudest moment of my life, too. Maybe I’ll never be a great hero or win a Nobel Prize, but it was enough just to be my father’s son.

What is the best title of the passage______

A.My Daydream
B.My Father’s Son
C.My Famous Father
D.My Happy Family

多项选择题