①分封制崩溃，井田制瓦解

②各种政治力量异常活跃

③各种思想交相辉映

④中央集权制度确立

小明家先后使用过柴草，煤炭和液化石油气，这几种燃料的月消耗量分别为：柴草约200kg，煤炭约90kg，液化石油气约90kg．

1说出这几种能源的特点和类别．

2使用不同的能源（燃料），消耗量为什么不同？

3请你运用所学知识分析，使用干柴炉灶、煤炉和燃气炉，哪一种好些？

There’re 24 h____  in a day .
What’s his j____ ? He’s a teacher .
Don’t l____ to music in class .
Jackie Chan is a very s____  actor . He’s in many movies .
S _____  is the first day of a week .
My mother has lots of work to do every day . She’s very b____ 
Beijing is the capital （首都）of C____ .
I can’t a____  that question. It’s too difficult
Best w____ to you , Miss Jin . 
Kate , please w____  your name on the card .

秦岭可作为我国（　　）