初中英语语法之句子种类句子种类句子按说话目的可分为四类:陈述句、疑问句、祈使句和感叹句。陈述句考点:陈述句的肯定结构和否定结构。在肯定结构中,谓语动词不含否定词;否定结构是在系动词、助动词或情态动词后加not,除了not外,其他否定词,如no, hardly, never, neither, nor等,也可以构成否定句。【考例链接】按要求完成下列各题1. I was playing with my phone when my mother came in. (改为否定句)I _ _ with my phone when my mother came in.2. She often reads with her daughter in the evening. (改为否定句)She _ often _ with her daughter in the evening.3. Ellen has already bought some flowers. (改为否定句)Ellen _