肯定句变成一般疑问句时,如果有be或情态动词动词就把他们提前,如果没有就在前面加do的某种形式,第三人称用does,过去时用did例如,she is your sister.一般疑问句是is she your sister?
she likes playing football.
does she like playing football?否定句 如果句中有be动词或情态动词,在其后面直接加not,如果没有加don't,does't或did't
she isn't your sister
she doesn't like playing football.
例句说明吧:Miss Gao is my English teacher.一般疑问句,一提二改三变号一提,把系动词is提前,二改把is改为Is,my改为your,三变号把句号变问号。Is Miss Gao your English teacher?否定句,把动词改为否定。现在进行时把动词改为现在进行时状态即V-ing形式。特殊疑问