初一下英语Unit_9知识点.pptVIP

 一般过去时表示过去发生的事（动作或状态） 构成： 主语 ＋ 动词过去式 2. 时间标志： just now (刚刚), yesterday, the day before yesterday (前天), last (weekend, night, week, month, year… ), (two hours, two days, three months, one year) ago in (1990, 2000…), on Sunday morning (afternoon, evening) 一般过去时表示过去发生的动作和状态 1. 表状态, 用be动词 (was, were) 肯定： He was happy yesterday. 否定: 一般疑问: 肯定 / 否定回答： 2. 表动作, 用动词过去式. 肯定： He cleaned the room yesterday. 否定: 一般疑问: 肯定/ 否定回答： 特殊疑问: He wasn’t happy yesterday. Was he happy yesterday? Yes, he was. / No, he wasn’t. He didn’t clean the room yesterday. Did he clean the room yesterday? Yes, he did. / No, he didn’t. What did he do yesterday? 规则动词过去式的变化规律 1. 一般在动词原形末尾加-ed look -- ______ start -- _____ learn--______ 2. 结尾是 e 的动词加 --d live -- _____ hope -- _____ dance--_____ stop – _______ plan -- _______ shop -- _______ drop--________ 3 . 末尾只有一个辅音字母的重读闭音节词，先双 写这个辅音字母，再加--ed 4. 结尾是“ 辅音字母+y ” 的动词， 先变“y”为“i”再加 --ed study -- _____ carry – ______ cry -- _____ looked started lived hoped stopped planned shopped dropped learned danced studied carried cried 词尾 –ed 的读音 1. 在浊辅音和元音后面，发音为 / d / turned ordered showed arrived planned passed guessed relaxed cooked liked watched wanted painted studied turned, passed, arrived, guessed, wanted, planned relaxed, liked, ordered, showed, cooked, painted watched, studied 2. 在清辅音后面，发音为/ t / 3. 在/ t / / d / 后面，发音为/ id / 动词不规则变化： am /is--______ have/has--______ are--______ do/does--______ become--________ come--______ bring--________ tell--________ run--_______ buy--_________ catch--_______ teach--_________ eat--________ find--_______ give--_________ begin--________ drink--________ sit--________ say--______ feel--_______ make--________ write