初中英语语法之现在进行时.pptVIP

现在进行时 do my homework I am doing my homework now. listen to music She is listening to music. have a class They are having a class in the classroom. 否定句: 一般疑问句: 肯定回答: 否定回答: She is listening to music. No,she isn’t. Yes, she is. Is she listening to music? She isn’t listening to music. 否定句: 一般疑问句: 肯定回答: 否定回答: They are having a class in the classroom. They are not having a clas in the classroom. Are they having a class in the classroom? No, they are not (aren’t). Yes, they are. aren’t 2.标志词: 现在进行时的含义与构成 He is reading a book. 表示现在正在进行或 一段时间正在进行的动作 1.含义： 句中出现 now, at the moment, right now,look, listen等词时，上下文 提示时，如： It’s +时间 等 就用现在进行时 Be(am,is,are) +V-ing 3.构成： Be(am / is are)随着主语的变化而变化。 2.否定句：直接在be后加not. 主语+be not +v-ing+其它. 如：I am writing. I am not writing. 现在进行时的句式 1.肯定句: 主语+be +v-ing+其它. 如: I am reading a book. 3.一般疑问句及回答: 问句,直接把be提前, Be +主语+v-ing+其它? 肯定回答: Yes,主语 +be 否定回答: No,主语+be+not. -----Are you drawing ? -----Yes,I am./No, I’m not. 4. 特殊疑问句 疑问词＋be +主语＋V+ing +其它? What are they doing at the moment ? 5. V-ing 变化规则： 1） 一般加 ing . 如: play----playing watch----watching 以不发音的e 结尾,去e 加ing. 如: take----taking 3) 元+辅结尾, 且是重读闭音节的单词,双写辅音字母+ing. 如: run----running swim----swimming 4) 以ie结尾的动词,变ie为y,再加ing. 如：die---dying lie---lying tie---tying 1.写出下列动词的ing 形式. 1.help_________ 2.come_________ 3.swim_________ 4.eat__________ 5.give________ 6.find_______ 7.sit ________ 8.write________ helping giving finding sitting writing coming swimming eating 学科网 buy_____ lie______ stand _____ read _______ talk______ walk_______ sing_______ dance_______ have______ take______ shop_______ drive_______ call_______ enjoy_______ tell_____ wait______ drink________ buying lying standin