“肯定句变一般疑问句”万能解题步骤、技巧和典例精析

“肯定句变一般疑问句”解题步骤

一、找be动词（am is are，was were）有则直接提前；

eg1. He is / was a teacher. ＝＞Is / Was he a teacher? 肯Yes, he is/was否No, he is n’t/was n’t.

二、无be动词，则再找情动(can may should must need)有情动则直接将其提前；

eg2.I can play soccer. ＝＞Can you play soccer? 肯Yes, I can否No, I can’t. (注:can’t容易多写n)注：need有可能不是情态动词，怎么判断？＝＞根据“情态动词+V原”的共性。

因为： need ①、情态动词：“需要”，后接: V原②、实义动词：“需要”，后接：sth 或 to do sth.

eg3. You need see a doctor. ＝＞Must I see a doctor? 肯Yes, you need. 否No, you needn’t.

eg4. You need to see a doctor. ＝＞Do I need to see a doctor? 肯Yes, you do n’t. 否No, you do n’t.

(eg3中的need根据“情态动词+V原”的共性可以判断是情动，但通常也不提前，要根据语气选择must开头,同样must开头的一般疑问句的否定回答，一般要选择用needn’t或don't have to作答。

eg5.--Must I stay here ? 肯Yes, you must . 否 No, you needn't 或No, you don't have to.

三、无be动词，无情动，则再找是否有助动词will,shall,would,have,has,had,有则直接将其提前；

注：have,has,had有可能不是助动词，怎么判断？＝＞根据“完成时态”的结构。因为只有“完成时态”中才会有助动词have,has,had的存在，其他时态或位置的have,has,had都是实义动词。“完成时态结构”如下：

①、现在完成时：have / has + V-ed(过去分词) eg. I/She have / has done my homework.

②、过去完成时：had + V-ed(过去分词)

eg. She had left before/when I realized she was a cheat(骗子).

eg. We had finished cleaning the classroom before the teacher came.

③、现在完成进行时: have / has been V-ing(现在分词)

eg. I have been swimming in the cold water for about two hours.

四、无be，无情，也无助，则只有借助

必要还原；

五、变人称：原句中涉及第一人称的人称代词、形容性物主代词、名词性物主代词要变成第二人称对应的人称代词、

形容性物主代词、名词性物主代词；同样，原句中涉及第二人称的人称代词、形容性物主代词、名词性物主代词要变成第一人称对应的人称代词、形容性物主代词、名词性物主代词；

eg. I like apples. ＝＞ Do you like apples ? 肯Yes, I do 否No, he doesn’t.

eg. This is my book. ＝＞ Is this your book? 肯Yes, it is 否No, it isn’t.

eg. That computer is mine. ＝＞ Is that computer yours? 肯Yes, it is 否No, it isn’t.

eg. You are my friends. ＝＞ Am I your friends? (Be动也变化了) 肯Yes, you are 否No, you aren’t.

六、some或与some有关的不定代词要变成any及any有关的不定代词。

some＝＞any, something＝＞anything, somebody＝＞anybody, some one＝＞any one, somewhere＝＞anywhere

不变的特殊情况如下：eg. I would like some drink.(变一般疑问句) ＝＞ Would you like some drink?

原因是：表示发出诚恳的请求希望得到别人的肯定回答，或征求建议的一般疑问句，只能使用表示肯定的some 或something 等不定代词。

七、附：句中含有“used to + V原”结构的变一般疑问句时，有两种变法：

1、借助助动词did 且提前，used 还原成use. eg.I used to watch TV after dinner.

＝＞Did you use to watch TV after dinner? 肯 Yes, I did. 否No, I did n’t.

2、也可直接将used提前.eg.I used to watch TV after dinner. ＝＞Used you to watch TV after dinner?

肯 Yes, I used. 否No, I used n’t.

八、在含有“ I think, I guess（guessed）, I believe(believed)”等引导的宾语从句中，变疑问句时，无须考虑从句部分是否有be动词、情态动词或助动词，只需把主句部分变为疑问语序就可。变成：

I think/guess/believe →Do you think/guess/ believe…？

I thought/guessed/believed →Did you think/guess/believe…？

I don’t think/guess/believe→Don’t you think/guess/believe…？难道你不认为…

I didn’t think/guess/believe→Didn’t you think/guess/believe…？难道你不认为…

eg. I think she is an English teacher.＝＞I don’t think she is an English teacher. 译:我认为她不是一个…