小学英语 肯定句变否定句详细讲解
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ຫໍສະໝຸດ Baidu
1. I want some lamb. I don't want any lamb.
2. He wants some lamb. He doesn't want any lamb.
有能有是直接加not， 无能无是借don’t/doesn’t, 否定some要变any, 记住don’t/doesn’t 是照妖镜, 后面动词照原形.
• 构成：Can 句型的否定句：在can 后 加not, 其余部分不变。can not= can’t
• e.g.
• The birds can fly. • The birds can not fly. • Mary can dance. • Mary can’t dance.
Practice
• I can swim. • She can dance. • My mother can hear with her ears. • Lucy and Linda can walk to school. • My Dad can see some children in
4. We go to school.
We don’t go to school. 5. You go to school.
You don’t go to school. 6. They go to school.
They don’t go to school.
构成：
+ I/You/We/They/ The students
把下列句子变成否定句
• 1.I am a girl. • 2.He is my teacher. • 3.Jimmy’s dad is in the bathroom. • 4.Your mum is beautiful. • 5.She is watching TV now． • 6.They are good students in my
the garden.
1. I like vegetables. I don't like vegetables.
2. You like vegetables.
You don't like vegetables. 3. He likes vegetables.
He doesn't like vegetables.
don't + 动词原形+其它
非第三人称单数
He/She/It
+ My father
第三人称单数
doesn't +动词原形+其它
1. 否定句中and要变为or
He can sing and dance. He can’t sing or dance.
2. 否定句中some要变为any
He has some bread and juice. He doesn’t have any bread or juice.
class. • 7.There is a bird on my head.
can 的用法
• can 属于情态动词，一般表示能力， can 没有人称变化，不能单独使用， 必须后跟动词原形。
• e.g.
• You/He/I can hear the music.
I/ She/ You/ He A can dance.
Be动词的否定
情态动词can的否定 实义动词的否定句
否定句中and，some与any的用法
构成：be + not
⑴ I am a girl. I am not a girl.
⑵ You are short. You are not short.
⑶ She is ugly. She is not ugly.
1. I want some lamb. I don't want any lamb.
2. He wants some lamb. He doesn't want any lamb.
有能有是直接加not， 无能无是借don’t/doesn’t, 否定some要变any, 记住don’t/doesn’t 是照妖镜, 后面动词照原形.
• 构成：Can 句型的否定句：在can 后 加not, 其余部分不变。can not= can’t
• e.g.
• The birds can fly. • The birds can not fly. • Mary can dance. • Mary can’t dance.
Practice
• I can swim. • She can dance. • My mother can hear with her ears. • Lucy and Linda can walk to school. • My Dad can see some children in
4. We go to school.
We don’t go to school. 5. You go to school.
You don’t go to school. 6. They go to school.
They don’t go to school.
构成：
+ I/You/We/They/ The students
把下列句子变成否定句
• 1.I am a girl. • 2.He is my teacher. • 3.Jimmy’s dad is in the bathroom. • 4.Your mum is beautiful. • 5.She is watching TV now． • 6.They are good students in my
the garden.
1. I like vegetables. I don't like vegetables.
2. You like vegetables.
You don't like vegetables. 3. He likes vegetables.
He doesn't like vegetables.
don't + 动词原形+其它
非第三人称单数
He/She/It
+ My father
第三人称单数
doesn't +动词原形+其它
1. 否定句中and要变为or
He can sing and dance. He can’t sing or dance.
2. 否定句中some要变为any
He has some bread and juice. He doesn’t have any bread or juice.
class. • 7.There is a bird on my head.
can 的用法
• can 属于情态动词，一般表示能力， can 没有人称变化，不能单独使用， 必须后跟动词原形。
• e.g.
• You/He/I can hear the music.
I/ She/ You/ He A can dance.
Be动词的否定
情态动词can的否定 实义动词的否定句
否定句中and，some与any的用法
构成：be + not
⑴ I am a girl. I am not a girl.
⑵ You are short. You are not short.
⑶ She is ugly. She is not ugly.