问题 单项选择题

一条指令必须包括

A.操作码和地址码

B.信息和数据

C.时间和信息

D.以上都不是

答案

参考答案:A

解析:解析:一条指令就是对计算机下达的命令,必须包括操作码和 地址码(或称操作数)两部分。前者指出该指令完成操作的类型,后者指出参 与操作的数据和操作结果存放的位置。

阅读理解

Three Things to do Before You Are 18

Here are some things you should try before you are 18 for teenagers. (青少年)

Learn to swim

It is important for us, because it can save our lives. If you can’t swim well, you can’t do water sports like surfing and diving. Even taking a boat  will be dangerous for you. 

Try at least one kind of team sports

 Being a good team player is an important skill. You can’t just think of yourself, but have to work well with other people. Other advantages (优点) of team sports like basketball ,football and baseball are that they keep you healthy, and they are also great fun. Teams usually have a good social life too—you’ll go to lots of parties and make many friends.

Collect something

One of the best hobbies for under-18s is collecting things. You could collect kinds of stamps, or you could collect other things, because that make you remember what you have done, like movie tickets (票)or e-mails from friends. The best way to collect is to have a special album(相册)to put your collection in and to write what each thing means(意思是) to you.

小题1:The most important reason for learning to swim is that ____ .

A.it can save your life

B.it can make you healthy

C.you might easily do lots of things

D.you can do sports water.小题2:“A good social life” in the passage (短文)means ____ .

A.you’ll study in groups

B.you’ll go to parties and make many friends.

C.you’ll take part in many parties.

D.you’ll keep healthy.小题3:The writer tells us that one of the best hobbies is to ____ .

A.collect something

B.do some water sports

C.send e-mails to your friends

D.have a special album小题4:The word “collect” may mean?

A.集邮

B.收集

C.改正

D.数数小题5:The passage is mainly about ____ before you are 18.

A.good habits to keep

B.skills to have

C.things to do

D.collect many things

单项选择题