二零二三年 优质公开课Unit4Lesson20Lookingatphotos.pptx

Lesson 20 Looking at Photos Unit4 Warm up What are you doing? Review get ready to do sth go home next week 回家 下周 准备做某事 New word What can you see? New words I can see some photos. photo photos New words remember 反义词 forget Presentation What are you doing ,Li Ming? I’m getting ready to go home next week. Presentation May I see them? Sure. Look!I found these photos. 原形 Presentation found 找到（过去式） 原形 find 一般过去时 构成 常用时间 用法 动词的过去时 1.表示过去某个时间发生的动作或存在的状态 2.表示过去经常或反复发生的动作 yesterday last night in 1990 two days ago Presentation 动词过去式的构成 规则动词 构成 读音 不规格动词 Presentation 规则动词过去式的构成 构成规则 例词 1.一般在动词原形末尾加ed 2.结尾是不发音的e字母的动词加d 3.末尾只有一个辅音字母的重读 闭音节词，双写尾字母加ed 4.结尾是辅音字母加y的动词， 把y变i加ed look looked play played like liked stop stopped study studied Presentation 规则动词ed的读音 清念/t/元浊/d/ /t/ /d/之后念/id/ 例：1.清念/t/ ask----asked 2.元念/d/ play----played 3.浊念/d/call-----called 4./t/ /d/ 后念 /id/ want------wanted need------needed Presentation 不规则动词变化 原形 am/is are take tell bring buy lose put 过去式 was were took told brought bought lost put 原形 go have do see say win get read 过去式 went had did saw said won got read Presentation Practice 1.写出下面动词的过去式 clean wash talk want laugh is/am are 2.用动词的适当形式填空 (1)I _______(find)those phtos last night. (2)What are you ________(do)? cleaned washed talked wanted laughed was were found doing Homework Write some sentences with the past tense.