问题 解答题

有红、黄、蓝、白、紫五种颜色珠子各一颗,分别放在编号为1、2、3、4、5号的五只箱内,A、B、C、D、E五人的猜想结果如下:

A:2号内装紫色珠子,3号内装黄色珠子.

B:2号内装蓝色珠子,4号内装红色珠子.

C:1号内装红色珠子,5号内装白色珠子.

D:3号内装蓝色珠子,4号内装白色珠子.

E:2号内装黄色珠子,5号内装紫色珠子.

结果每人都猜对了一种,每箱也只有一人猜对,A、B、C、D、E各猜对的珠子的颜色分别为什么颜色?

答案

通过观察发现,1号只出现了一次,而每箱也只有一人猜对.

所以1号必为装红色珠子,即C答1号内装红色珠子是正确的,

5号内装白色珠子是错误的,那么5号内装紫色珠子是正确的,

则2号内装黄色珠子是错误的,则2号内装蓝色珠子是正确的,

所以4号内装红色珠子是错误的,所以4号内装白色珠子,

则3号内装蓝色珠子是错误的,所以3号内装黄色珠子,

所以2号内装紫色珠子是错误的.

答:A猜对3号内装黄色珠子;B猜对2号内装蓝色珠子;C猜对1号内装红色珠子;D猜对4号内装白色珠子;E猜对5号内装紫色珠子.

阅读理解

The first time I saw Carlos I would never have believed he was going to change my life. I had my arms full of books and I was tearing into the classroom when 1 ran into something solid. It was Carlos.

“My God, you’re tall,” he said.

Of course, the class began to laugh. Angry. I walked to my seat without a word.

I glanced back to see if Reed Harrington was laughing with the rest. That would be the last straw. But Reed was studying chemistry and did not seem to be aware of anything else. I didn’t know why I considered Reed my friend. Maybe just because he was a good two inches taller than I. Anyway, every time I blew out my birthday candles and made a wish, it was for a date with Reed Harrington.

“Take that seat,” Mr. McCarthy told the cocky newcomer Carlos,pointing to the only empty one,in the back of the room.

Carlos grinned,“But I need a couple of dictionaries.”Again the class laughed, but now they were laughing with Carlos,not at him. He had been here only 10 minutes and already he had them on his side.

It was the school elections that made me think of Carlos again. Reed Harrington was voted president and Carlos vice-president. “How come?”I kept asking myself,“How come this shrimp who’s only been in town for a little over a month gets to be so popular?”

So that morning,I stopped Carlos and said,“It doesn’t seem to bother you — being short.”He looked up at me , “Of course I mind being short. But there isn’t anything I can do about it. When I realized I was going to have to spend my life in this undersized skin,I just decided to make the best of it and concentrate on being myself.” “You seem to get along great,”I admitted, “But what about me? Nobody wants to date a girl taller than he is.” “The trouble with you is you’re afraid to be yourself. You’re smart. And you could be pretty. In fact, you might be more than pretty.” I felt myself turning red…

56.The author was angry because ________.

A.the class made fun of her                                                B.Carlos was too rude to her

C.she had to carry many books                                          D.Reed Harrington didn’t date her

57.Which of the following about Carlos is NOT TRUE?

A.He was popular.                                                                 B.He was new in the school.

C.He was shorter than the author.                                   D.He was chosen president in the school elections.

58.We can infer from the passage that ________.

A.Carlos and the author have become good friends

B.the author will be more confident

C.Carlos always encouraged the author

D.the author was tall

59.What’s the best title of the passage?

A.How to be popular                                                             B.A tall girl

C.Be yourself                                                                          D.Something about Carlos

单项选择题