楼上回答得很全
1.
否定句 My father is not a teacher.
一般疑问句 Is your father a teacher?
对划线部分提问 What is your father?
2.
变复数 These are Chinese books
1 My father isn't a teacher.(否定句)
Is your father a teacher?(疑问句)
What is your father? / What does your father do? / What is your father's job? (对划线部分提问)
2 These are Chinese books.
1.my father isn't a teacher
is your father a teacher?
what is your father?
2.there are many Chinese books.
英语同义句转换练习