小学英语肯定句变否定句

英语肯定句变否定句例句~

很简单啊。
举个最简单的例子
You can find the answer. (转换为否定句)
=You can't find the answer.
(转换为一般疑问句)
=Can you find the answer?
(否定疑问句)
=Can't you find the answer?

其实就是将句子中be动词/动词转化为否定形式。
或者添加否定词语。例如:You can never find the answer.

首先看是否为 主语+be动词+形容词 如果是直接在be动词前面加not
主谓宾的 主语+动词+...需要在动词前面写doesn't 或者don't或者didn't根据时态不同决定
最常见的是这两种

肯定句改否定句可大致分为三类：
1.有be动词或者情态动词的肯定句变否定句
2.没有be动词也没有情态动词，有实意动词(表示动作的动词)的肯定句变否定句
3.含有动词have/has的肯定句变否定句
以下对上述三种肯定句变否定句的变化规则依次讲解
1.有be动词或者情态动词的肯定句变否定句
转变方法：在be动词或情态动词后面直接加not
例1. I am a student. → Iam nota student.
例2. You are sad. → Youare not sad.
例3. I can swim. → Ican notswim.
例4. You will go to the park.
→ Youwill notgo to the park.
2.没有be动词也没有情态动词，有实意动词(表示动作的动词)的肯定句变否定句
转变方法：借助助动词（do, does, did）来帮助否定
①当句中的动词是原形时，加don't。
例1.I like English.
→ I do not like English.
例2.You have dinner.
→ You do not have dinner.
②当句中的动词是第三人称单数时，加doesn't ，再加动词原形。
例1. She likes singing.
→She doesn't like singing.
例2. She does her homework.
→ She does not do her homework.
③当句中的动词是过去式时，用didn't，加动词原形
例: We had a great time during our holidays.
→We did not have a great time during our holidays.
3. 动词have/has的特殊说明:
①当have表示“某人有什么的时候”，其否定形式为have not/has not
例: She has two books.
→ She has not two books.
②当have作为实意动词时，其否定形式为 do not have/does not have
例: You have dinner.
→You do not have dinner.
③当have在完成时中作为助动词时，其否定形式为have not/has not
例: I have seen this film.
→ I have not seen this film.
4. 一些特殊说明:
①肯定陈述句中的some/too，在否定陈述句中应改为any/either。
例1.He has some milk.
→ He hasn’t any milk.
例2. I have books. She has books,too.
→ I have not books. She has not books,either.
②肯定陈述句中若有and连接两个并列的成分，在否定陈述句中通常应改为or。
例: There are students and teachers in the classroom.
→There are not students or teachers in the classroom.
但以下几种状况，不需要改为or
A. 句子中出现两个否定词。
如: Men cannot live without air and water.
B. and列举的成份前都有否定词。
如: It has no eyes and no ears.
C. and列举的成份在否定词前面。
如: Tom and Merry can not write their names.
D. and构成的固定词组。
如: He did not work day and night.
E. and连接两个表示先后发生的动作。
如: Don't drink and drive.

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临漳县19686837902： 五年级英语肯定句变否定句 - ？
蓬店益肝：[答案] 1.动词be的否定式 动词be根据不同的人称和时态可以有am,is,are,was,were等不同形式,可用作连系动词(表示“是”、“在”等)和助动词(用于构成进行时态和被动语态等),但不管何种情况,构成否定式时,一律在其后加not: I'm old,but ...

临漳县19686837902： 英语肯定句变否定句 - ？
蓬店益肝： 有三条 分别是: 1.若有be动词 则直接在be动词后加not. 2.若无be动词 则找do+not 放在实际动词的后面. 3.若无be动词 而且主语是第三人称单数 则用does not.顶一下啊!~~~~

临漳县19686837902： 英语的肯定句怎么改成否定句?还有,怎么写祈使句? - ？
蓬店益肝： 肯定句改为否定句 【正文快照】: 一、若句中有be动词、情态动词或助动词时,则分别在它们的后面加上not.例如:1.Heisateacher.→Heisnotateacher.2.Icanfindthebag.→Ican'tfindthebag.3.Iwillgotomyhometownnextweek.→...

临漳县19686837902： 肯定句变否定句怎么改 - ？
蓬店益肝： 只需要把“是”变为“不是”,把“有”变为“没有”,还要在句末加上“吗”字和问号,使句子变为反问句.句子原意不变,又变成否定句.

临漳县19686837902： 五年级英语如何把肯定句改为否定句 - ？
蓬店益肝： 变特殊疑问句·加疑问词【who,whose,why,which,when,what】再加助动词【do,does】或be动词【am,is,are】或情态动词【must,can·····】再加一般疑问句.加问号【很重要】 变一般疑问句,把be动词往前提,把句子中有的可以造抄,最后加问号.【很重要】 但多数情况要你自己去灵活应对!加油!^_^~

临漳县19686837902： 英语肯定句变否定句 - ？
蓬店益肝：[答案] do not = don't is not= isn't are not= aren't 你变否定的时候,你看到有do 的就变don't,有is/ are 的就变isn't / aren't

临漳县19686837902： 五年级英语肯定句变否定句 - ？
蓬店益肝： 如果主语是i , you , they 就在主语后面加don't 如果主语是 he , she ,it 就在主语后面加都doesn't

临漳县19686837902： 英语肯定句改否定句怎么改?什么情况下在前面加don't,什么情况下在前面加not? - ？
蓬店益肝：[答案] be动词是加not,其他动词加don't

临漳县19686837902： 英语中如何将肯定句变成否定句?肯定句变成疑问句?最好简单些说,最好举一些例子,不要抄的! - ？
蓬店益肝：[答案] 见以下,很简单. 一.肯定句变成否定句 如果句中有be动词is,am,are 或情态动词must,can等,在其后面直接加not, she is your mother. she isn't your mother 2.如果没有be动词或情态动词,加don't,does't或did't she likes playing football. she doesn't like ...

临漳县19686837902： 英语肯定句变否定句 要10个现成的 - ？
蓬店益肝：[答案] They play basketball .They don't play basketball .He is a worker .He isn't a worker .She works here .She doesn't work here .I have been in China .I haven't been in China .You are a student .You aren't...