1、Unit 1 Lesson 3 Have Fun1.能够运用一般过去时表达过去发生的事情。2.能够积极探索宇宙奥秘。Learning aims(学习目标):Read the dialogue,answer these questions:1.In Anns dream,(1).Who were they?(2).Where were they?(3).Whom did they meet?2.总结一般过去时定义及用法。Teach oneself guidance(自学指导):In Anns dream,(1).Who were they?(2).Where were they?(3).Whom
2、 did they meet?They were astronauts.They were on Mars.They met Martians.一般过去时：定义：表示过去发生的动作或存在状态。标志：yesterday,last night,just now 等用法：（1）含有be动词-主语第一、三人称 用was，主语第二人称和复数名词用were。（2）含有一般动词-动词用其过去式。Talk about yourdream.What did you do last night?I had a dreamDo you know?太阳系是以太阳为中心，和所有受到太阳的引力约束天体的集合体：8颗行星、
3、至少165颗已知的卫星、5颗已经辨认出来的矮行星（冥王星、谷神星、阋神星、妊神星和鸟神星）和数以亿计的太阳系小天体。环绕太阳的天体被分为三类：行星、矮行星、和太阳系小天体。行星：依照至太阳的距离，行星依序是水星、金星、地球、火星、木星、土星、天王星、和海王星，8颗中的6颗有天然的卫星环绕着。在英文天文术语中，因为地球的卫星被称为月球，这些卫星在英语中习惯上亦被称为“月球”（moon），在中文里面用卫星更为常见。卫星：是指在围绕一颗行星轨道并按闭合轨道做周期性运行的天然天体，人造卫星一般亦可称为卫星。人造卫星是由人类建造，以太空飞行载具如火箭、航天飞机等发射到太空中，像天然卫星一样环绕地球或其它
4、行星的装置。杨利伟：是中国第一位进入太空的航天员，他是中国培养的第一代航天员。2003年10月15日9时，杨利伟乘神舟五号飞船首次进入太空。他和技术专家的创举使得中国成为第三个掌握载人航天技术的国家。What have we learnt today?They were in the space.They were on Mars.It was very cold on Mars.There were Martians on Mars.The Martians were friendly.Homework:1.课文会背。2.写出以下单词过去式。am/is-are-go-have-give-do-buy-think-come-live-run-move-put-hit-cut-
