（    ）52．A．women          B．babies             C．children           D．workers

（    ）51．A．looked          B．heard              C．saw               D．found

（    ）50．A．many           B．much              C．little              D．few

（    ）49．A．knew          B．understand          C．played             D．learnt

（    ）48．A．over           B．before             C．long                D．ago

（    ）47．A．bought         B．taken              C．made              D．given

（    ）46．A．huge           B．small              C．great               D．cheap

（    ）45．--Excuse me, would you tell me the way out of the museum?

         --Yes, look at the sign over there．" ________" means "the way out".

    A．BUS STOP          B．ENTRANCE         C．OPEN              D．EXIT

    通读下面短文，掌握其大意，然后在各小题所给的四个选项中，选出一个最佳答案，并将其字母编号写在题号前的括号内。

   The computer was one of the most important inventions of last century．The first computer was as large as a room. Now some computers are as   46   as television sets. Some computers can even be   47   smaller than a book. About 20 years  48  , the computer was a strange machine in China. Not many people  49  it and said yes to it.

    Today   50   of that is changing. In 1984, when Deng Xiao-ping   51   two pupils working on the computers in Shanghai, he said that computer lessons would start from  52  . So there was the first computer book for middle school students. Now in Shanghai   53   all middle schools have classrooms for computer courses. Some of the students now have their own computers at home. With the help of the Internet, they can send and receive messages and e-mails. They can learn about the world   54 

    Now computers are widely used in banks, factories, airports and so on. The computer is coming into everyone's life, so it is important for us to learn how to  55  a computer freely.

（    ）44．--Do you mind if I open the door for a while?

         -- ________

    A．No, of course not                            B．Yes, please

    C．Yes, you can                            D．No, you can't

（    ）43．You may watch TV when your homework ________

    A．was done           B．will be done        C．will do             D．is done