【优质推荐】小升初英语时态专题：现在进行时 全国通用版(共10张PPT)

现在进行时 现在进行时 表示说话时正在进行且尚未完成的动作或状态，常与 now, at present 等时间状语连用。 结构：主语+be（am,is are）+现在分词（动词-ing）+其他. 其中的 be 可以随主语人称不同而用 am, is, are。 例句： I am running now. She is running now. They are running now. 现在进行时的句式变换：： 肯定句： 否定句： 一般疑问句： 肯定回答： 特殊疑问句： 变否定句: be动词后加not 变疑问句：be动词提到主语前 I am not running now. She isn't running now. They aren't running now. I am running now. She is running now. They are running now. Are you running now? Is she running now? Are they running now? Yes, I am. Yes,she is. Yes,they are. 否定回答： No, I'm not. No,she isn't. No,they aren't. What are you doing? What is she doing? What are they doing? 现在分词的三种构成规则： 1）一般情况下直接加 -ing, 如：play-playing, carry-carrying 2）以不发音的字母 e 结尾的单词，去掉 e，再加 -ing, 如：ride-riding, come-coming 3）以重读闭音节结尾、呈现“辅—元—辅”结构的单词，先双写末尾的辅音字母，再加 -ing, 如：swim-swimming, sit-sitting (一) 写出下列动词的现在分词： Practice： play________ run__________ swim _________