Section_ⅣOther_Parts_of_the_Module

　　[原文呈现]

　　Rockets①

　　Today rockets are very advanced② machines which we can use to send astronauts into space③. They are also used in firework displays④ to celebrate great events⑤， such as the end of the Olympic Games or the beginning of the new millennium⑥ in the year 2000.

　　Rockets were probably invented⑦ by accident⑧ about 2,000 years ago. The Chinese had a form of gunpowder⑨which was put in bamboo tubes⑩ and thrown into⑪ fires to make explosions⑫ during festivals. Perhaps some of the tubes jumped out of⑬ the fire instead of⑭ exploding⑮ in it. The Chinese discovered that the gas escaping⑯ from the tube⑰ could lift it into the air. The idea of the rocket was born.

　　[读文清障]

　　①rocket/'rɒkIt/n.火箭　　　②advanced adj.高级的；先进的

　　③which引导限制性定语从句，which在从句中作use的宾语。

　　④firework displays焰火表演　⑤great events重大事件

　　⑥millennium/mI'leniəm/n.千年

　　⑦invent vt.发明；创造

　　⑧by accident偶然　　by chance偶然　　on purpose故意地

　　⑨gunpowder/'ɡʌnˌpaʊdə/n.火药

⑩which引导定语从句，并在从句中作主语。