问题 选择题

下表是元素周期表中短周期的一部分。已知A元素的原子中最外层电子数比其电子层数的3倍还多。下列关于表中六种元素的说法正确的是 

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A.X元素形成的气态氢化物分子空间结构呈三角锥形

B.X、Y、Z三种元素形成的单核阴离子中Y半径最大

C.最高价氧化物的水化物酸性最强的是A元素

D.X的氢化物分子间含有氢键,因此X的热稳定性很大

答案

答案:B

单项选择题 B1型题
阅读理解

阅读理解。

     One of the qualities that most people admire in others is the willingness to admit one's mistakes. It is

extremely hard sometimes to say a simple thing like "I was wrong about that," and it is even harder to say,

"I was wrong, and you were right about that."

     I had an experience recently with someone admitting to me that he had made a mistake fifteen years ago.

He told me he had been the manager of a certain grocery store in the neighbourhood where I grew up, and

he asked me if I remembered the egg boxes. Then he related an incident and I began to remember vaguely

the incident he was describing.

     I was about eight years old at the time, and I had gone into the store with my mother to do the weekly

grocery shopping. On that particular day, I must have found my way to the dairy food department where

the incident took place.

     There must have been a special sale on eggs that day because there was an impressive display of eggs

in dozen and half-dozen boxes. The boxes were stacked three or four feet high. I must have stopped in front

of a display to admire the stacks. Just then a woman came by pushing her grocery cart and knocked off the

stacks of boxes. For some reason, I decided it was up to me to put the display back together, so I went to

work.

     The manager heard the noise and came rushing over to see what had happened. When he appeared, I was

on my knees inspecting some of the boxes to see if any of the eggs were broken, but to him it looked as if I

was the culprit (做婚事的人). He severely scolded me and wanted me to pay for any broken eggs. I tried to

explain it wasn't me who had broken them, but it did no good. Even though I quickly forgot all about the

incident, obviously the manager did not.

1. How old was the author when he wrote this article?

A. About 8.

B. About 18.

C. About 23.

D. About 15.

2. Who was to blame for knocking off the stacks of boxes?

A. The author.

B. The manager.

C. A woman.

D. The author's mother.

3. Which of the following statements is not true?

A. The woman who knocked off the stacks of boxes was seriously criticized by the manager.

B. The author was severely criticized by the manager.

C. A woman carelessly knocked off the stacks of boxes.

D. It was the author who put the display back together.

4. The tone of the article expresses the author's _____.

A. regret for the mistake he made in the store

B. admiration for the manager's willingness to admit mistakes

C. anger against the woman who knocked off the stacks of boxes

D. anger to the manager for his wrong accusation