将下列句子变成一般疑问句，并作出简要的肯定回答和否定回答。 This is my son.求各位帮帮忙啊，真的急啊

我先回答你的答案，然后再补充语法知识。

1】is this your son?yes,he is /no,he is not
2】is that his sister?yes,she is/no,she isn't
3】is she your good friend?yes,she is/no,she isn't
4】are these nice pictures?yes,they are /no,they aren't
5】is this a middle school?yes it is /no ,it isn't

要特别注意人称的转换！！！！

一般疑问句是疑问句的一种。它是指用yes（是）或no（否）来回答的句子。

其结构是：
　　
系动词be/助动词/情态动词+主语+其他成分
　　通常回答为：
　　肯定：Yes，+主语+提问的助动词.
　　否定：No，+主语+提问的助动词+not.
　　如:
　　
Are you from Japan﹖
　　Yes I am． / No I'm not．
　　

Is her sister doing her homework now﹖
　　Yes she is． / No she isn't．
　　

Does he work in a bank﹖
　　Yes he does． / No he doesn't．
　　

Do you live near your school﹖
　　Yes I do． / No I don't．
　　

Can you speak French﹖
　　Yes I can． / No I can't．
　　
May I go home now﹖
　　Yes you may． / No you mustn't．

1．将陈述句变为一般疑问句时，如句中有be 动词（am/ is/ are）时，可直接将它们提至主语前。如主语为第一人称，应将其改为第二人称。如：
　　
I'm in Class 2Grade 1． →
　　Are you in Class 2Grade 1﹖
　　
We're watching TV． →
　　Are you watching TV﹖

2．陈述句中有情态动词（can、may、must …）时，也可直接将它们提至主语前，即可成为一般疑问句。如：
　　
He can swim now． →
　　Can he swim now﹖
　　
The children may come with us． → May the children come with us﹖
　　
3．陈述句中只有一个实义动词作谓语且其时态为一般现在时，变为一般疑问句时要在句首加do或does 主语后的实义动词用原形。如：
　　
I like these animals． →
　　Do you like these animals﹖
　　
She wants to go to the movies． → Does she want to go to the movies﹖

1,Is this your son?Yes,he is./No,he isn't.
2,Is that his sister?Yes,she is./No,she isn't.
3,Is she your good friend?Yes,she is./No,she isn't.
4,Are these nice pictures?Yes,they are./No,they aren't.
5,Is this a middle school?Yes,it is,/No,it isn't.