Unit 1 Lesson 3 Have Fun,1.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 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
