When was it invented Unit 9Language goal。Learn to talk about history of some light bulbinventionEdison invented the ligh。
四川省江油市明镜中学九年级英语Unit9Tag内容描述：
1、When was it invented Unit 9Language goal:Learn to talk about history of some light bulbinventionEdison invented the ligh。
2、Unit 9READINGbasketball courtEquipment about basketballbasketballmetal hoopbackboardnetwooden floor木地板木地板装备装备,器材器材Before。
3、Unit 9When was it invented Section A1bListen and match the inventions with the dates.abedc18761885192719711976dabec1c1c1。