"I will think of it." It is easy to say this，but do you know what great things have come from thinking？
    Sir Isaac Newton was sitting in his garden when he saw an apple fall from a tree.He began to think and tried to find out why the apple fell.He got the idea of gravity .Then he discovered how the sun，moon and stars are kept in their places.
    A boy named James Watt sat quietly by the fire，watching the lid of the kettle move up and down.He wanted to find out why the steam in the kettle moved the lid.From that time he went on thinking and thinking.And when he became a man，he improved the steam engine so much that it could easily do the work of many horses.
    James Ferhuson was a poor boy.Once，seeing the inside of a watch，he wondered， " Why should I not make a watch？" But how could he get the materials to make the mainspring（发条）？He soon found he could make it with whalebone（鲸须）.He then made a wooden clock which kept good time.His motto was "I will think of it." And he made his thoughts useful to himself and the world.
    Boys and girls，when you meet with any difficulty，don't lose heart，and don't ask someone for help before helping yourselves.Think，and by thinking you will learn how to think creatively.

（1）Where did Newton get the idea of gravity？

In his garden.

In his garden.

（2）When did James Watt improve the steam engine？

When he grew up.

When he grew up.

（3）How did James Ferhuson make the mainspring in the wooden clock？

By using whalebone./With walebone./He used whalebone.

By using whalebone./With walebone./He used whalebone.

（4）How many people are mentioned in the passage？

There are three.

There are three.

（5）After reading the passage，what will you do if you meet with any difficulty？（自拟一句话）

I won't lose heart or ask someone for help before helping ourselves.

I won't lose heart or ask someone for help before helping ourselves.