including rockets and others that were launched from a bamboo tube.Once again，the raw materials at hand，like bamboo，contributed ideas for new technologies.

　　 Compass(指南针)

　　 By the third century AD，Chinese scientists had studied and learned much about magnetism (磁) in nature.They learned to "make magnets" by heating pieces of ore(铁矿石) to red hot temperatures and then cooling the pieces in a North/South position.The magnet was then placed on a piece of reed(芦笛) and floated in a bowl of water marked with directional bearings(方向)．Those first navigational(航海的) compasses were widely used on Chinese ships by the eleventh century AD.

　　【诱思导学】　

　　1．What do you know about Confucius，Mencius or Mozi?

　　2．Which of their teachings do you like best？And why?

　　【答案】　1～2　Students' own answers.

　　Period ⅠPreviewing

　　(教师用书独具)

　　●教学目标

　　本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课对课文的全面理解起到一个铺垫作用。

●教学地位