问题 单项选择题

ROM中的信息是

A.由生产厂家预先写入的

B.在安装系统时写入的

C.根据用户需求不同,由用户随时写入的

D.由程序临时存入的

答案

参考答案:A

解析: 只读存储器是只能读出而不能随意写入信息的存储器。ROM中的内容是由厂家制造时用特殊方法写入的,或者要利用特殊的写入器才能写入。当计算机断电后,ROM中的信息不会丢失。

阅读理解

阅读理解。

      One morning I was woken by my mother's angry voice. I opened my eyes and found it was seven forty,

so I jumped out of bed and rushed to a nearby bus stop without breakfast. Fortunately the bus started going

as soon as I got on it. I was sure I could reach the school before the bell rang.

      However, the bus suddenly stopped. There was something wrong with it and we had to get off and wait

for another one. I felt I couldn't wait and the school was only fifteen minutes' walk, so I ran to the school as

fast as possible. Just at this moment, it began to rain hard.

      I reached the classroom with all my clothes wet through. Mr. Smith, our physics teacher, had begun his

class. I was always afraid of him. I hesitated (犹豫) for a moment, and then I opened the door.

      "It's you again, Jim," Mr. Smith said angrily. "I've told you not to be late, but you …". Then he suddenly

stopped when he noticed my wet clothes. He quickly took off his own jacket and asked me to put it on. "I

don't want you to catch a cold," he said kindly. I went to my seat with Mr. Smith's jacket on. It was a bit

large for me but I felt very warm in it. I found, for the first time, Mr. Smith's physics class so interesting and

I changed my mind, there and then, about being afraid of him.

1. According to this passage, classes in Jim's school probably began at _____.[ ]

A. 9 am

B. 8 am

C. 7 am

D. 7:30 am

2. Why did Jim hesitate before he opened the door? [ ]

A. He was afraid of facing Mr. Smith.

B. He didn't like to have the physics class.

C. Mr. Smith didn't let him go into the classroom.

D. He didn't want to interrupt others.

3. Jim found Mr. Smith physics lesson interesting that day because _____. [ ]

A. he knew physics was very important

B. he wanted to go to famous university

C. he didn't want to fall behind the others

D. he was moved by his physics teacher

4. We can infer from the passage that _____. [ ]

A. Jim usually went to school by bike

B. it was the first time Jim had been late

C. Jim was often late for school

D. Jim's mother also got up late that morning

选择题