$\frac{1}{3}=\frac{\left(\right)}{15}$    $\frac{45}{27}=\frac{\left(\right)}{3}$     $\frac{33}{44}=\frac{3}{\left(\right)}$     $\frac{18}{24}=\frac{\left(\right)}{4}=\frac{\left(\right)}{32}$     $\frac{9}{2}=\frac{\left(\right)}{8}$     $\frac{5}{8}=\frac{\left(\right)}{40}=\frac{40}{\left(\right)}$

完形填空

　　 The computer was one of the most important inventions in our life. The first computer was as large as a room.

Now some computers are as   1    as television sets. Some computers can even be smaller than a book. About 20 years ago, the computer was a strange machine in China. Not many people   2    it and said yes to it.

         Today much of that is   3 . In 1984, when Deng Xiaoping  4   two pupils working on the computers in Shanghai, he said that computer lessons     5 start from children. So there was the first computer book for middle school students. Now in Shanghai   6    all middle schools have classrooms for computer courses(课程). Some of the students now have their   7  computers at home. With the help of the Internet, they can send and    8   messages and e-mails. They can learn about the world more quickly.

         Now people are    9    using computers in banks, factories, airports and so on. The computer is coming into everyone’s life, so it is important to learn     10  to use a computer freely.