Unit 11 How was your school trip? Section A (Grammar Focus3c,话题:描述过去的事 。 重点: 一般过去时的结构和用法 难点: 正确运用一般过去时,3a Complete Jims letter on the left and Bills reply on the right,was,Did,Did,Did,see,went,was,go,Dear Jim, My school trip (is) great! We (have) so much fun! We_(go) to Green Park. We_(climb) the mountains there and (see) a lot of flowers. We (eat) our lunch under some trees and (play) some games after that. But at about two oclock, it (get) very cloudy and we (worry) it would rain.