题目内容
阅读理解
Nearly two hundred years ago, in France, two brothers stood watching smoke rise in the air. “If we put some of that smoke in a big bag, perhaps the bag would rise,” said one. “Yes,” said the other. “And if the bag were big enough, it might even lift us right up into the air, too.”
The boys built a huge bag of paper and cloth. Underneath (在……下面) it they made a fire. Soon the bag began to fill out into a great round ball. It was the first balloon (气球) in the world.
“We were right,” shouted the boys. “A bag of smoke will rise!” But they found out later that it was not the smoke that made the balloon go up. It was the hot air from the fire.
1.The balloon talked about in the story was made ________.
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2.The boys thought about making a balloon by watching ________.
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3.The boys' balloon was made of ________.
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4.At first, the boys thought their balloon went up because of the ________.
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5.The boys' balloon really went up because ________.
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A.the hot air from the fire made it rise
B.it was in France
C.the smoke made it rise
D.it was a big balloon