现在进行时课件.ppt

* Review lesson Welcome to our class! The Present Continuous Tense He a book at home now. is reading lead-in： He a cake. is eating Look! The boy on the street. is running The girl a letter now. e is writ ing They TV at home now. are watching 一、含义： 表示现在(说话瞬间）正在进行或发生的动作。 现在进行时 The present continuous tense 二、现在进行时的基本结构: ①主语+(助动词)be + V-ing (动词现在分词). 肯定句 助动词be随主语人称的变化而变化为 am,is, are ②主语+(助动词)be +not + V-ing (动词现在分词). 否定句 ③ (助动词) Be +主语 + V-ing (动词现在 分词)?疑问句 句型转换： 1. They are doing housework .(改成一般疑问句和否定句) 2.The students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答) 3.I’m playing the football in the playground .(对划线部分进行提问) 4.Tom is reading books in his study . (对划线部分 进行提问)　　 中考连接 三、动词现在分词(V-ing)构成 : 1.一般在动词原形后加ing eg:read----reading ; eat---eating ; 　 2.以不发音e结尾的动词，去掉e再加ing eg: write ---writing ; make--- making ; 3.以辅+元+辅结尾的动词,双写末尾的辅音字母加ing　 eg: sit---sitting swim---swimming run--running get--getting 4.特殊变化: lie—lying die---dying 四、标志：(口诀) 现在进行时正在发生事， look, listen, now是标志， 两个错误要回避， 一是掉be, 二是掉ing. He breakfast now. is eating What is he doing now? Talking： They basketball. are playing What are they doing now? Look! What is the boy doing? He is swimming in the sea. Groupwork： What are the students doing? They are dancing. What are the boys doing? They are fishing. Summary： 1. 进行时很好记， be加动词-ing 分词构成须仔细， 直加双写去哑e 别说be无词义， 主语和它最亲密 变疑问be提前， 否定not在后添 何时要用进行时， look，listen，now是标志。 Please remember it! *