新概念一第L71-72 课.ppt

. . Lesson 71 He is awful! They are at church every Sunday. They are at school every Monday. She is at the office every day. They were at church last Sunday. They were at school last Monday. She was at the office yesterday. He opened the box yesterday. She listened to music yesterday. They climbed the tree yesterday. 一般过去时 定义： 过去的某个时间里存在的状态， 或者是发生的动作。 句子结构： 主语 + was / were + 其它 主语 + 实意动词过去式 + 其它 实意动词如何 变过去式 动词变过去的规则 ①一般情况加ed, look--looked; Iearn--learnd ②以不发音的e结尾的加-d.（去e再加 ed） smile-smiled ; live--lived ③ 以辅元辅结尾的重读闭音节单词, 双写最后一个字母再加 -ed, stop-stopped; ④以辅音字母+y结尾，变y为i再加ed; hurry--hurried; carry-carried; study-studied 还有很多动词的过去式是不规则的. 比如,go--went buy--baught 双 直 去 改 air _________ 　cry _________ clean_______ 　　wait_________ open_______ 　　turn_________ listen_______ 　arrive________ stay _______ 　 　stop ________ empty ______ 　　 shave _______ boil ________ climb _______ call ________ telephone _______ aired cried cleaned waited opened turned listened arrived stayed stopped emptied shaved boiled climbed called telephoned He opened the box yesterday. She listened to music yesterday. They climbed the tree yesterday. They didn’t climb the tree yesterday She didn’t listen to music yesterday. He didn’t open the box yesterday 变否定： 无情无be否助动 一般过去时： 添加助动 did 再加not did not = didn’t He opened the box yesterday. She listened to music yesterday. They climbed the tree yesterday. Did they climb the tree yesterday？ Did she listen to music yesterday？ Did he open the box yesterday？ 变一般疑问： 无情无be提助动 一般过去时： 助动did 提句首， did提前谓还原。 practice I ________ (be) at home yesterday. She _______ （call）the doctor the day before yesterday. 3. He _________ (live) in Beijing last year. 4. They __________ (not do) their homework last night. 5. ____ she _________ (sharpen) these pencils? was called li