精选优质文档-倾情为你奉上英语中如何把陈述句变成一般疑问句和否定句一、一般疑问句什么是一般疑问句:用Yes 或No 作答的疑问句叫一般疑问句。要将陈述句变成一般疑问句，可以遵循下列步骤：1.句子中有be(am is are was were )动词、情态动词（can would may ）、will 时，只要直接把这些词置于句首，句末改成问号。 例：It is rainy today. Is it rainy today?Toms father can play the pianoCan Toms father play the piano? 2.如果句中没有be 动词、助动词或情态动词，则根据谓语动词的形式借助do 的相应形式放在句首，必须在句首加上助动词Do 、Does （单三）、Did （过去式）加上这些助动词后，句子中谓语动词必须用原形。英语中如何把肯定句变成否定句例：They go to school by bike. They do not go to school by b
