英语怎样变句型 一般疑问句 否定句 反问句 肯定句 画线提问
1。 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如：
肯定句:He is a student。
一般疑问句: Is he a student?
否定句: He is not a student。
反问句: He is a student, isn't he?
He isn't a student, is he?
画线提问: 对he提问: Who is a student?
对 a student 提问: What is he? or What does he do?
2。 ...全部
1。 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如：
肯定句:He is a student。
一般疑问句: Is he a student?
否定句: He is not a student。
反问句: He is a student, isn't he?
He isn't a student, is he?
画线提问: 对he提问: Who is a student?
对 a student 提问: What is he? or What does he do?
2。
由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,提到句子的前面,句尾用问号即可。变否定句时直接在can,may,后面加not即可。 例如:
肯定句: She can swim。
一般疑问句: Can she swim?
否定句: She can not swim。
反问句: She can swim, can't she?
She can not swim, can she?
画线提问: 对she提问: Who can swim?
对swim提问: What can she do?
3。
由行为动词构成的句子: 需要加助词do或does。 变一般疑问句时把do/does放在句子前面。 例如:
肯定句: They play football after school。
一般疑问句: Do they play football after school?
否定句: They don't (do not) play football after school。
反问句: They play football after school, don't they?
They don't play football after school, do they?
画线提问: 对they提问: Who play football after school?
对play football提问: What do they do after school?
对after school提问: When do they play football?
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