1 专题复习--现在进行时 一．意义： 现在进行时是表示现在、说话瞬间或当前一直正在做着的动作. ▲ 二．构成: be (am, is ,are )+动词现在分词（v -ing 形式） 三. 动词的现在分词的构成： （1）一般在动词末尾直接加ing, read→reading; work→working （2）以不发音字母 e 结尾的动词，先去掉 e,再加ing， 如 skate →skating make →making dance → dancing write → writing have → having ride → riding come → coming type→typing （3）少数几个以 ie 结尾的动词要变 ie 为 y, 再加-ing die→dying tie→tying lie→lying ★（4）辅+元+辅结构，应双写末尾的辅音字母，再加ing, 如 ： putting running beginning stopping swimming shopping jogging sitting getting forgetting letting digging planning preferring 四、现在进行时的句型转换： 肯定句： 主语 + be + 现在分词V-ing (+ 其他) Eg1. I’m doing my homework now. Eg2. She is singing at the moment. Eg3. They are playing computer games now. 否定句：主语+be+not+动词-ing +其他. Eg1. I’m not doing my homework now. Eg2. She isn’t singing at the moment. Eg3. They aren’t playing computer games now. 一般疑问句：Be+主语+动词-ing +其他？ Eg1. Are you doing your home work now? ---Yes, I am. ---No, I’m not. Eg2. Is she singing at the moment? ---Yes, she is. ---No, she isn’t. Eg3. Are they playing computer games now? ---Yes, they are. ---No, they aren’t. 特殊疑问句：特殊疑问词+be+主语+动词-ing+其他？ Eg1. What are you doing now? Eg2. Who is he talking to? Eg3. Where are they dancing? 2 五、现在进行时的时间标志及用法： 1）一般句中用到表示“在现在” 的时间状语，如：now, right now, at the moment 或 It’s+几点钟” 句型，常判断用现在进行时。 Eg: Let’s go fast. Mr. Wu is waiting for us now/ right now/ at the moment. Eg. It’s six o’clock. The children are playing basketball. (2)句中用到“Listen！” “Look!” “Keep quiet” “Don’t make noise!”...
