现在进行时讲义

1、现在进行时1、定义：表示现在（说话瞬间）正在进行的动作。2、使用情况：（1）现在（说话的瞬间）正在进行或发生的动作，强调“此时此刻”。E.g. He is reading. They are talking now.（2）当前一段时间内的活动或现阶段正在进行的动作。E.g. He is teaching in a primary school. They are working these days.3、现在进行时的基本结构及句型变化（1）结构：谓语动词结构：be(am, is, are)doing（现在分词）（2）现在进行时的句型变化： 肯定句: 主语+be+doing+其它. 否定句：主语

2、+be+not+doing+其它.(be后加not) 一般疑问句: be主语doing其它？（be动词提前） 肯定回答: Yes, 主语 +be. 否定回答: No, 主语 +be+not. Eg：肯定句 He is watching TV now. Eg：肯定句 We are working. 否定句 He is not watching TV now. 否定句 We are not working. 一般疑问句 Is he watching TV now? 一般疑问句 Are you working? 肯定回答 Yes, he is. 肯定回答 Yes, we are. 否定回答 No,

3、he isnt. 否定回答 No, we arent .Eg：肯定句 Tom and Mike are playing football right now. 否定句 Tom and Mike arent playing football right now. 一般疑问句 Are Tom and Mike playing football right now？ 肯定回答 Yes, they are. 否定回答 No, they arent.课堂练习： 句型转换1. My parents are sleeping. (变为一般疑问句) 2. Sam is doing his homework r

4、ight now. (变为否定句)3. Are you swimming? (变为肯定句)（3）动词ing变化规则情 况变 法例 词一般情况直接加-ingplay-playing walk-walking以不发音的字母e结尾的动词去e加-ingcome-coming have-having make-making ride-riding write-writing take-taking “辅+元+辅”结构的动词将末尾辅音字母双写,再加-ingputputting drop-dropping, swimswimming stopstopping beginbeginning run-runni

5、ng以ie结尾的动词改ie为y，再加-ing。lielying diedying, tietying. 课堂练习： 写出下列动词的现在分词形式 work_sing_lie_ study_have _ dance _ shop_ take_make_ live_ get_get_ buy _stop_ begin_come _ 4、 现在进行时的特殊疑问句（1） 特殊疑问句结构：特殊疑问词+一般疑问句语序（2） 现在进行时的特殊疑问句：特殊疑问词+be(am/is/are)主语doing其它？例如：Mary is reading at home right now.Who is reading at home right now?What is Mary doing at home right now?Where is Mary reading right now?课堂练习： 对划线部分提问1. My brother is playing football in the park. 2.