题目内容

从下面方框中选择适当的选项填入文中,使短文通顺、完整。选项中有两项是多余选项。

A. in         B. has                   C. large   D. do      E. even      F. like 

G. faster   H. thousands of    I. tired    J. reasons   K. three     L. doing

Since 1946, one of the most important inventions has been the computer. It  1   changed our lives greatly.

The first computer was built  2  1946. It was as   3   as a room and very difficult and slow to use. But since the invention of silicon "chip"(硅片), computers have become smaller, easier and   4  to operate. Some computers are as small as TV sets. Some can   5  be made smaller than a book. And computers are getting smaller and smaller all the time. Who knows what the computers of tomorrow will be   6  ?

There are several   7  why the computer is useful to us. First, a lot of information can be put into computers. Second, the computer works very quickly—  8  times faster than a man—and it will not be   9  . Third, modern computers can be built into other kinds of machines, like radios, cars and planes. So today people can spend less time   10  more work with a computer.

1---5 BACGE      6---10 FJHIL

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网