问题 选择题

一个口袋中有3个黑球和若干个白球,在不允许将球倒出来数的前提下,小明为估计其中的白球数,采用了如下的方法:从口袋中随机摸出一球,记下颜色,然后把它放回口袋中,摇匀后再随机摸出一球,记下颜色,…,不断重复上述过程.小明共摸了100次,其中20次摸到黑球,根据上述数据,小明可估计口袋中的白球大约有[ ]

A.18个

B.15个

C.12个

D.10个

答案

答案:C

填空题
阅读理解

I first went to Harrow in the summer term. The school had the biggest swimming pool I had ever seen. It was a good joke to come up behind a naked boy, and push him into the pool. I made quite a habit of this with boys of my own size or less

One day I saw a boy wrapped in a towel on the side of the pool. He was no bigger than I was, so I thought him a fair game. Coming secretly behind, I pushed him in, holding on to his towel so that it would not get wet, I was surprised to see an angry face come out from the water, and a being of great strength making its way by fierce strokes(猛力地划) to the shore. I fled, but in vain. He overtook me, seized me violently, and threw me into the deepest part of the pool. I soon climbed out on the other side, and found myself surrounded by a crowd of younger boys. “Do you know what you have done?” they said, “It’s Amery; he is in Grade Six. He is champion at gym, he has got his football honor.”

I was frightened and felt ashamed. How could I tell his position when be was wrapped in a bath towel and so small. He didn’t seem pleased at all, so I added in a most brilliant word, “My father,  who is a great man, is also small.” At this be laughed, and after some general words about my rude behavior and how I had better be careful in the future, signified the incident was closed.

1. The writer thought Amery “a fair game” because the boy        .

A. looked like an animal                   B. was fond of games w*w*

C. was of similar size                  D. was good at sports

2. The writer felt “ashamed” because        .

A. he was laughed at by other boys 

B. Amery turned out to be in the same grade

C. he pushed Amery hard and hurt him    

D. he played a joke on an outstanding athlete

3. By saying “My father, who is a great man, is also small”, the writer        .

A. tried to please Amery                   B. challenged Amery

C. threatened Amery                  D. admired his father

4. Which of the following is TRUE?

A. The writer could run faster than Amery.

B. The writer liked playing on boys of all sizes.

C. Amery was a student in Grade Four.

D. Amery forgave the writer for his rude behavior

5. What does the underlined word “overtook” mean?

A. catch hold of                                       B. catch up with

C. take a look at                                        D. shout at