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新概念英语第一册语法总结:现在进行时现在进行时表示现在正在进行的动作构成:主语be动词动词的现在分词其它成分We are having lunch.He is reading a book.The dog is running after a cat.The boys are swimming across the river.变疑问句将be动词移到句首Are we having lunch?Is he reading a book?Is the dog running after a cat?Are the boys swimming across the river?变否定句在be动词后面加 notWe are not having lunch.He is not reading a book.The dog is not running after a cat.The boys are not swimming across the river.特殊疑问句:what, which, how, where, who, etc.疑问词动词主语现在分词What are you doing?What is she doing?What is the dog doing?没有进行时的动词(必背)表示状态,思想,感情和感觉的动词不能表示正在进行的动作:1. 表示感觉,感官的词see, hear, like, love, want2. have, has当“拥有”讲时没有进行时
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