Unit 10 An exciting Sport
lesson three(一)大声读单词: 1. airplane n. 飞机 2. hiking n. 远足,徒步旅行 3. canada n. 加拿大 (二)重点语法: 一般过去时态 定义:表示过去发生的动作或状态。 结构:be 动词的过去式: 肯/否定:i/he/she/it was(not)…. you/we/they were…. 一般疑问:were you ~? 结构:动词过去式: 肯定: i watched tv. 否定句:i don’t watch tv. 一般疑问句: did you watch tv? yes, i did. no, i didn’t. 动词过去式变化: (1)一般情况下在动词词尾加-ed. 词尾-ed在浊辅音和元音后读[d],在清辅音后读[t],在[t]、[d]音后面,词尾-ed一律读[id],play→ played[d] clean→ cleaned[d] stay→ stayed[d] (2)词尾是e的动词加-d。 live→ lived[d] change→ changed[d] like→ liked[t] (3)以一个辅音字母结尾的重读闭音节单词,应双写这个辅音字母,再加-ed。 stop→ stopped[t] plan→ planned[d] (4)以辅音字母+y结尾的动词,先将 y变为 i再加-ed,词尾的-ed一律读[d]。 study→ studied[d] carry→ carried[d] cry→ cried[d] (5)有些动词的过去式的变化是不规则的。 be→ was/were do→ did go→ went read→ read see→ saw have→ had write→ wrote sit →sat spend → spent