如何将陈述句改成一般疑问句?

如何将陈述句改成一般疑问句?
如何将陈述句改成一般疑问句?

如何将陈述句改成一般疑问句?
例：It was rainy yesterday.→Was it rainy yesterday?Tom's father can play the piano.→Can Tom's father play the piano?I have finished my homework.→Have you finished your homework?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.具体方法是：①如果谓语动词是原形,则借do； ②如果谓语动词是一般现在时第三人称单数形式,则借does； ③如果谓语动词是过去式,则借did.需要注意的是,借does或did后,原句的谓语动词要变回原形.例：They go to school by bike.→Do they go to school by bike?Bill gets up at 6:30 every day.→Does bill gets up at 6:30 every day?The students saw a film yesterday.→Did the students see a film yesterday?二、陈述句变一般疑问句应注意的事项 陈述句变成一般疑问句除了遵循上述规则以外,还应注意下列几点：1.如果陈述句中有第一人称,则变问句时最好要变为第二人称.例：I usually have lunch at school.→Do you usually have lunch at school?My father is playing soccer.→Is your father playing soccer?2.如果陈述句中有some,则变问句时往往要变成any .例：There is some water on the playground.→Is there any water on the playground?3.复合句变一般疑问句通常只变主句,从句不变.例：I know he comes from Canada.→Do you know he comes from Canada?4．如果句中含有实义动词have且表示“有”时,除借do外,也可将其直接提到句首.例：I have some friends in America.→Have you any friends in America?/Do you have any friends in America?三.一般疑问句的回答 一般疑问句往往采用简短回答,共由三部分（三个单词）组成,对这三部分（三个单词）的确定可以概括例下：1.第一个词：不是Yes就是No（有时根据语气的不同,Yes可由Sure,Certainly,Of course等代替.NO可由sorry 代替.） 2.第二个词：问谁答谁.即答语中的主语须与问句的主语一致（但必须用主格代词）.例：Does she clean her room every day?Yes,she does.Is Anna′s father a doctor?No,he isn′t.如果主语是 this that,回答时用 it 代替,如果问句中主语these,those,回答时用 they′ 代替.3.第三个词：用什么问,用什么答.即沿用问句中的引导词.Can Jim play soccer?Yes,he can.Does Mr Bean speak English?Yes,he does.需要注意问题：（1）用 may 引导的问句,肯定回答用may,否定回答用 can′t 或mustn′t,May I go to the park now?Yes,you may./No,you mustn′t.（2）用 must 引导的问句,肯定回答用 must,否定回答用needn′t.例：Must I wash my clothes now?Yes,you must./No,you needn′t.4．用No开头作否定回答时,结尾要加上 not.因为回答必须是三部分,所以否定回答必须缩写,而肯定回答不能缩写.例:Did Thomas come here yesterday?Yes,he did./ No ,he didn′t.Is Lin Lin in Class Yes,she is./No,she isn′t.或（No,she′s not）.四、总结：将陈述句改成一般疑问句的方法：三步法 1、有be动词,则把be动词放在句首,剩下的照抄,（some 改成any,I改成you,my改成your,）句点改成问号.2、有情态动词,则把can,shall,will等放到句首,剩下的照抄,（some 改成any,I改成you,my改成your,）句点改成问号.