Question

Long, long ago people made fire from lightening（閃電）. But they had to keep the fire burning, for they couldn’t start it again if there was no lightening. Later, they found out hitting two pieces of stone together could make a spark（火花）. Then spark could burn dry leaves. In this way they could make the fire again if it went out. Then people also learned to make a fire by rubbing（摩擦）. They made a hole in a piece of wood and put a smaller stick into the hole. They turned the stick again and again. After a few minutes they got a fire.

Years went by, people learned other ways to make a fire. Sometimes they used the heat from the sun. They held a piece of glass in the right way and made a piece of paper of fire.

About two centuries age, people began to make matches（火柴）. Matches brought people a quick and easy way to make fires. Today matches are still being used, but people have more new ways to make fires. One of them is use an electric fire starter. Of curse an electric fire starter is much more expensive than a box of matches. But it is very useful.

（  ）49. From the text we know that a spark can            .

A. burn any leaves.                 B. burn anything

C. burn dry leaves                  D. keep the fire burning

（  ）50. We can also get a fire by            .

A. making a hole in a big piece of wood

B. putting a smaller stick into the hole

C. turning the stick hard for a while

D. doing all the above in order

（  ）51. From the passage, we know that            .

A. electric fire starters are widely used            

B. some forest fires happen from lightening

C. today there are only two ways to make a fire           

D. people haven’t used matches since they had electric fire starters

 

Answer 1

CDB