“肯定句变一般疑问句”解题步骤

1、“肯定句变一般疑问句”解题步骤 “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 isnt/ wasnt.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 cant. (注:cant容易多写n)注：need有可能不是

2、情态动词，怎么判断？根据 “情态动词+V原”的共性。因为： need 、情态动词：“需要”，后接: V原 、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 neednt.eg4. You need to see a doctor. Do I need to see a doctor? 肯Yes, you dont. 否No, you dont.(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m

3、ust开头,同样must开头的一般疑问句的否定回答，一般要选择用neednt或dont have to作答。eg5.-Must I stay here ? 肯Yes, you must . 否 No, you neednt 或No, you dont 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

4、成时态结构”如下：、 现在完成时：have / has + V-ed(过去分词) eg. I / She have / has done my homework.、 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.、 现在完成进行时: have / has been V-ing(现在分词) eg. I have been swimming in

5、the cold water for about two hours.四、 无be，无情，也无助，则只有借助 疑问句专用助动词do,does或did，并将其提前后，且原实义动词形式务必要还原；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 doesnt.eg. Th

6、is is my book. Is this your book? 肯Yes, it is 否No, it isnt.eg. That computer is mine. Is that computer yours? 肯Yes, it is 否No, it isnt.eg. You are my friends. Am I your friends? (Be动也变化了) 肯Yes, you are 否No, you arent.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。someany, somethinganything, somebodyanybody,

7、some oneany one, somewhereanywhere 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 watc

8、h TV after dinner? 肯 Yes, I did. 否No, I didnt.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 usednt. 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 dont think/guess/believeDont you think/guess/believe？难道你不认为I didnt think/guess/believeDidnt you thin