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（1）变一般疑问句：当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等)提到主语的前面， （口诀：一调二变三问号）; （2）变否定句：在be动词或情态动词后面直接加not变成否定句. (be后not莫忘记) 例：①陈述句：She is my sister.. 疑问句→ Is she your sister? Yes, I am./ No, I'm not. 否定句→ She is not my sister. ②陈述句：I can play soccer. 疑问句→ Can you play soccer? Yes,Ican./ No, I can't. 否定句→ I can not /can't play soccer. (责任编辑：admin) |