space,Unit 5 Our Earth looks like this in space,the Earth,land and river,Space Museum,Where do we get the information (获得信息) about space,the sun,What information can we get,the moon,stars,went,go,watch,watched,was / were,is, am/are,talk,talked,want,wanted,A Lets listen and say. Listen to the tape carefully, then find out the past form of verbs(动词过去式) . Now Past,said,say,2.What did Peter and his mother do last Sunday? (paragraph 2,3.Who talked about the film? (paragraph 2,4.What can people see fr
