问题 单项选择题

下列地质作用,对地壳的发展变化起主导作用的是()

A、风化作用

B、外力作用

C、变质作用

D、内力作用

答案

参考答案:D

解析:【分析】本题考查内外力作用与地表形态的变化。引起地表形态变化的作用,按其能量来源分为内力作用和外力作用。内力作用的能量主要来自地球内部的热能,表现为地壳运动、岩浆活动、变质作用等,它使地表形态变得高低起伏。外力作用的能量主要来自于地球外部的太阳能,以及重力能等,表现为风化、侵蚀、搬运、堆积、固积成岩。它将高山削平,把盆地填平,其结果往往使地表趋于平坦。内力作用对地表形态起主导作用。所以本题选择D选项。

阅读理解

阅读理解。

     To some people, happiness is something to do with simplicity, and it is the ability to extract pleasure

from the simplest things-such as a peach stone (桃核). It is obvious that it has nothing to do with success.

     For Sir Henry Stewart, it was certainly successful. I remember some ten years ago when he was made King's Counsel, Amos and I went to congratulate him.We smiled happily; he merely looked as miserable

as though he'd received a punishment. He took his success as a child does his medicine. And not one of his achievements brought even a sign of a smile to his tired eyes.

     I asked him one day what it was like to achieve all one's ambitions.He looked down at his roses and

went on watering them.Then he said, "The only value in achieving one's ambitions is that you then realize

that they are not worth achieving."

     Yesterday, I was passing his house and he called me,"Come and see, Jan.Look! I have done it at last!" There he was, holding a small box of earth in his hand.I observed three tiny shoots out of it.

     "And there were only three!" he said, his eyes laughing to heaven.

     "Three what?" I asked.

     "Peach stones," he replied. "I've always wanted to make peach stones grow, even since I was a child,

when I used to take them home after a party, or as a man after a banquet. And I used to plant them, and

then forgot where I planted them. But now at last I have done it. I had only three stones, and three shoots," he counted.

     Then Sir Henry ran off, calling for his wife to come and see his achievement-his achievement of

simplicity.

1. From what fact could we see Sir Henry was successful?

A. He felt happy from the simplest things.

B. He was made King's Counsel.

C. He was able to make the peach stones shoot.

D. He didn't take his success seriously.

2. The author compares Sir Henry's attitude towards his success to a child's taking medicine _____.

A. to show that Sir Henry felt miserable when he was promoted

B. to prove that Sir Henry didn't want to be successful

C. to suggest that Sir Henry's future job would be hard to do

D. to tell us that Sir Henry took his success as a tiny thing in his life

3. According to Sir Henry Stewart, the value in achieving one's ambitions is _____.

A. that he discovers it valueless

B. that he finds it worth his efforts

C. that he has achieved it

D. that he fails to realize it

4. The writer's opinion about Sir Henry's attitude towards success is _____.

A. criticism  

B. disapproval  

C. admiration  

D. tease

问答题 简答题