An American went to Paris and bought a picture from a French artist．He thought the picture was fine because he had paid a lot of money for it．But when he came back to his hotel and wanted to hang the picture up on the wall, he could not tell which was the top and which was the bottom of the picture．He turned the picture in this way and that, but he still could not decide which was the top and which was the bottom．
Then he got an idea．He hung the picture in the room, and invited the painter of the picture to dinner．When the Frenchman came, the American talked about nothing but the picture．The artist looked at the picture before he began to eat．When he finished his dish, he stood up and looked at the picture again．At last, when he began to drink his coffee, he looked at it again, and found that picture was upside down．
“Why, my friend,”said the Frenchman,“My picture is upside down．”
“Really? Why did it take you so long to find that out?”said the American,“You painted it yourself, didn't you?”
(1)
The American bought a picture because ________．
[ ]
A．
he knew it was good
B．
he was in France
C．
he thought it was good
D．
he knew much about pictures
(2)
As he got back to the hotel, he ________．
[ ]
A．
could not find the top and the bottom of the picture
B．
could not hang it up
C．
knew there is something wrong with it
D．
found there was no top or bottom of the picture
(3)
The American invited the Frenchman to dinner in order to ________．
[ ]
A．
help him
B．
get his help
C．
thank him
D．
get back his money
(4)
The Frenchman seemed ________ as he looked at the picture．
A plant makes its own food in its leaves. Water comes to the leaves through the roots (根). Air gets into the leaves through very small holes. The green coloring in the leaves uses the water and air to make food for the plant. It also needs sunshine because a plant can make food only when the sun is shining.
Animals and people could not live without green plants. They both eat plants. People and some animals also eat the meat of some animals, and these animals eat plants.
(1)
A plant gets food from its leaves.
( )
(2)
The sun uses the water and air to make food for the plant.
( )
(3)
A plant has very small holes in its leaves for water to come in.
( )
(4)
A plant can make its food when it is a sunny day.
( )
(5)
From the article we know that people can’t get food without animals.
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