短文填词 根据短文内容和以下提示：1）首字母提示，2）语境提示，3）汉语提示，在每个空格内填入一个适当的英语单词。所填单词要求意义准确，拼写正确。（10分）
Many useful machines were invented by inventors. These machines have 小题1:c  ____ the world a lot. There are many great 小题2:in the world, and Watt(瓦特) was one of them.
　Watt was English. When he was a child, he liked to ask questions and he was always 小题3:.______(学习)hard. One day, he was sitting in the kitchen with his grandmother, she 小题4:_ ___（放）a kettle (水壶) on the stove (火炉). Soon steam (蒸汽) began to come 小题5:       the kettle and the lid (盖子) was shaking. Watt asked what was in the kettle. His grandmother said, "Water, my child."
　"But I know there's 小题6:s _____in it. It pushes the lid up." said Watt. His grandmother told him that it was only steam. He asked his grandmother,"小题7:W  __ does the steam come up under the lid?" His grandmother said that it came from hot water. Watt said to 小题8:____（他自己）,"The steam is so strong 小题9:______it can push things. The steam will be much小题10:_____ if there's more water."
　　Later, Watt tried hard and made steam work for people. He invented the first engine.