中考英语复习课件10-现在和过去进行时.ppt

* * 现在进行时： 表示现在正在进行的动作或状态。 构成： 肯定式：be ( am , is , are ) + doing 否定式: am / is / are not + doing 疑问式: Is / Are + 主语 + doing ? 标志词: now, look , listen , at eight Eg : Look ! Tom is playing chess with his grandfather. It’s eight now . We are having an English lesson. 一、将下列句子改为否定、疑问句并回答。 1. I’m writing a letter to my friend now . 否：____ ____ writing a letter to my friend now . 问：_____ ____ writing a letter to my friend now ? Yes , _____ ____ . No , _____ ____. 2. They are cleaning the classroom . 否: They ____ _____ the classroom . 问: _____ they _____ the classroom ? Yes , ____ ____. No , ____ _____. 二、用所给单词的正确形式填空。 1.What ____ you ____ ( do ) now ? I ____ (swim ). 2.____ your father ____(read ) a newspaper now ? Yes , he ___ . No, he ____ 3.Look ! Who _____ (give ) a talk 4.Listen ! Mike and Kate ___________ ( sing ) 5.He ____________ ( read ) now . He _________ (not write ) What are they doing now? They are playing football. What were they doing yesterday? They were playing football. What are they doing? They are running He is playing the guitar. They are dancing. He is swimming. Is he swimming? Yes, he is./No, he isn’t. 过去进行时怎么说? 现在进行时由am/is/are +doing构成. 想一想,过去进行时的构成是怎样? was/ were +doing 请看下面的句子： I was playing basketball. I was not playing basketball. Were you playing basketball? Yes, I was./ No, I was not. 想一想,把I改成He/They要怎样说呢?