One day James Watt was sitting at the five in his grandmother's home．He was watching the fire and thinking about things．A teapot was over the fire．Soon the lid (盖子) began to move up and down．

"What makes it move up and down? " the boy asked himself．He looked under the lid, but he could see nothing．

"Grandma, what's in the teapot?” he asked．

"Water, my child -- nothing but water．"

"But I know there is something more．And what makes the lid move up and down? "

His grandmother laughed, " Oh, that' s only steam (蒸汽) " she said．"You can see it coming out of the teapot．

"How did the steam get under the lid then?”

"Why, my dear, it comes out of the hot water．The hot water makes it．" The grandmother began to think that the boy was asking too many questions．

"Then stem must be very strong to make the heavy lid move up and down,” said the bright boy to himself．

"Well, if the steam comes from a lot of water it must be much stronger．Why can't we use steam to work for us? "

The idea grew with him as he grew up．He tried out his idea and failed, then tried again and failed again．But each time he learned something new．Some people laughed at him．"Don't be foolish(愚蠢的), "They said but he went on trying and at last he reached his goal and gave the world the first steam engine(蒸汽机)．”

根据短文内容，选择最佳答案，并将其标号填入题前括号内。

1．One day James Watt was sitting at the fire and watching it in his              .  

A．own house    B．mother's house   C．grandmother's house  D．school

2．The lid was made to move up and down by the              .

A．teapot   B．steam    C．hot water    D．tea

3．When James Watt was young, he was a              boy．

A．right      B．light      C．foolish   D．clever

4．—What was James Watt' s idea?

       —               work for us．

A．Not to make steam    B．To make steam    C．To make hot water    D．To make teapot

5．James Watt tried out his idea     times and at last he reached his goal．

A.two   B.few   C.many  D.any