Question

   Now machines are widely used all over the world. Why are machines so important and necessary for us? Because they can help us to do things better and faster.

A washing machine helps us to wash clothes fast. A printing machine helps us to print a lot of books，newspapers，magazines and many other things fast.Bikes，cars， trains and planes are all machines. They help us to travel faster.

   The computer is a wonderful machine. It was invented not long ago. It not only stores (貯存)information but also stores numbers millions of times as fast as a scientist does.

   Let’s study hard and try to use all kinds of machines to build China into a modern country.

(   ) 6. Machines can help us to do things better and faster,so they        .

A. are difficult to make

B. are expensive

C. are important but not necessary

D. are very helpful

(   ) 7. We have to travel on foot without      .

A. bikes    B. machines

C. planes    D. trains

(   ) 8. Computers can store information and numbers        a scientist does.

A. a little faster than

B. as fast as

C. much faster than

D. much more slowly than      

(   ) 9. A printing machine can help us      .

A. print a lot of books

B. read more books

C. invent many machines

D. wash clothes fast

Answer 1

 DBCA