怎样将英语否定句改成肯定句

如题所述

第1个回答  2024-05-20
一、肯定句改否定句
1、be动词后加not,诸如:is not(isn't), are not(aren't), was not(wasn't), were not(weren't), am not(无缩写)。
He is a student. 他是一个学生。--- He is not a student. 他不是一个学生。
They were watching TV then. 那时他们正在看电视。--- They weren't watching TV then. 那时他们没在看电视。
2、情态动词等后加not,诸如:can not(can't), will not(won't),should not(shouldn't),must not(mustn't),need(needn't)等。
She can take care of herself. 她能照顾好她自己。--- She can not(can't) take care of herself. 她不能照顾好她自己。
You should go home. 你应该回家。--- You shouldn't go home. 你不应该回家。
3、若无法找到be动词或情态动词,就在已有动词前额外加助动词否定形式:don't/doesn't/didn't,同时将动词变原形。
She likes the room. 她喜欢这房间。--- She doesn't like the room. 她不喜欢这房间。
We did our homework yesterday. 我们昨天做了作业。--- We didn't do our homework yesterday. 我们昨天没有做作业。
注:句中若有some ,须将其改成any。
I want some books. 我想要一些书。--- I don't want any books. 我不想要任何书。
There is some water in the cup. 杯子里有一些水。--- There isn't any water in the cup. 杯子里没有水了。
二、肯定句改一般疑问句(三步法)
1、把be动词(am/is/are...)或情态动词(can/will...)放在句首。若句中没有上述动词,就把助动词放在句首(do/does/did),同时将动词变原形。
2、剩余部分照写。注:some须改成any,I或we均改成you,my或our均改成your。
3、句点改成问号。
I can swim. 我会游泳。Can you swim? 你会游泳吗?
There is some water in the cup. 杯子里有一些水。Is there any water in the cup. 杯子里有水吗?
I studied hard. 我学习认真。Did you study hard? 你学习认真吗?
三、肯定句改特殊疑问句(四步法 )
1、在一般疑问句基础上,句首添加一个疑问词即可,但应根据划线部分选用适配的疑问词。
2、把be动词或情态动词等放在疑问词后面,若句中没有上述动词,就用助动词替代(do/does/did)。注:Whose(谁的)和How many(多少)两词除外,须紧跟物品,再写be动词或情态动词等。
3、划线部分去掉后剩下的内容照写。注:some须改成any,I或we均改成you,my或our均改成your。
4、句点改成问号。
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