B
Babies love chocolate, and sometimes they also eat the paper around it. My cat enjoys a meal of good, thick paper, old letters, for example . She doesn't like newspapers very much .
Of course, the best paper comes from wood. Wood comes from trees , and trees are plants: Vegetables and fruit are plants too, and we eat a lot of them . So can we also eat wood and paper?
Scientists say: “ All food comes in some way from plants. ” Well, is that true? Animals eat grass and grow fat. Then we eat their meat. Little fish eat sea-plants; then bigger fish swim along and eat them . Chickens eat bits of grass and give us eggs . What food does not come from plants in some way?
Scientists can do wonderful things with plants . They can make food just like meat. And they can make it without the help of animals . It is very good food, too . Now they have begun to say : “ We make our paper from wood . We can also make food from wood . The next thing is not very difficult . ”
What is the next thing? Perhaps it is food from paper. Scientists say;“We can turn paper into food . It will be good , cheap food too : cheaper than meat or fish or eggs . ”
So please keep your old books and letters . One day , soon , they will be on your plate. There is nothing like a good story for breakfast .
6．People live mainly on ______.                   
A．paper          B．plants        C．fish           D．meat
7．Scientists have ______.                    
A．made a lot of paper   B．fed eggs to chickens
C．made food just like meat D．made meat cheaper than food from paper
8．Chickens eat bits of grass . In the sentence “bits of” means _________________________.   
A．a little of    B .lots of  C．big pieces of    D .small pieces of
9．Which of the following is NOT true?           
A．Scientists say, “All food comes in some way from plants . ”
B．Scientists can make wood into food some day.
C．Scientists can make food from paper some day.
D．Scientists advise us to eat old books and letters at meals .
10．Choose one of the following as the topic for the passage .   
A．Paper----Our Future Food   B．No More Meat in Future
C．Save Old Books for Breakfast  D．Paper----The Best Cat Food