(4)肯定句变否定句

1、否定句的变化“万句之源万句之源”五大基本句型五大基本句型 基本句型一： （主谓） 基本句型二： （主谓宾） 基本句型三： （主谓宾宾补） 基本句型四： （主谓间宾直宾） 基本句型五： （主谓表） 句子的灵魂句子的灵魂V V的区别：行为动词的区别：行为动词 be be动词（小学阶段）动词（小学阶段）我们怎么在v的地盘变否定句呢？vvvvvsmile、look、cry、play、buyrun、jump、swim、fly、eattake、sing、dance、watch.（行为动词）（行为动词）小学阶段主要有：小学阶段主要有：am、is、are（be动词）动词）do/does+not+not通过上面

2、的图画你知道了吗？一个句子要变成否定句，要在动词（谓语）部分作变化哦！那么我们的句子的否定是不是只有2种变化呢？小心啦！还有can “能、会、可以” ，这一类的情态动词，它们常常出现在前4种以行为动词为谓语的句型！vvvvsmile、look、cry、play、buyrun、jump、swim、fly、eattake、sing、dance、watch.（行为动词）（行为动词）can/may.+not所以，我们知道了，五大基本句型里有3种变否定句的形式！实义动词的否定 情态动词can的否定Be动词的否定构成：be + not I am a girl. I am a girl.not You ar

3、e short.You are short.not She is ugly.She is ugly.notBe动词的否定Practice 1. I am a girl. _ 2. He is my teacher. _ 3. Jimmys dad is in the bathroom. _ 4. She is watching TV now _ 5. There is a bird on my head. _ 情态动词can的否定can 的用法：can 情态动词 “可以、能” 主语+can +Ve.g. You/He/I can hear the music.I/ She/ You/ He c

4、an dance.构成：在can 后加not, 其余部分不变。 can not= cant e.g. The birds can fly. The birds can not =cant fly. Mary can dance. Mary cant =cant 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 the garden. _1. I

5、like vegetables. I dont like vegetables.2. You like vegetables. You dont like vegetables.3. He likes vegetables. He doesnt like vegetables.实义动词的否定实义动词的否定6. They go to school. They dont go to school. You dont go to school.4. We go to school. We dont go to school.5. You go to school.I/You/We/They/The

6、students非第三人称单数非第三人称单数+dont动词原形动词原形+ +其它其它He/She/ItMy father第三人称单数第三人称单数doesnt+动词原形动词原形+ +其它其它1. 否定句中and要变为or2. 否定句中some要变为anyHe can sing and dance.He cant sing or dance.He has some bread and juice.He doesnt have any bread or juice.1. I want some lamb. I dont want any lamb.2. He wants some lamb. He do