1、 实义动词的否定句实义动词的否定句否定句中否定句中and，some与与any的用法的用法 情态动词情态动词can的否定的否定 Be动词的否定动词的否定构成：be+not I am a girl.I am a girl.not You are short.You are short.not She is ugly.She is ugly.not把下列句子变成否定句 1.I am a girl.2.He is my teacher.3.Jimmys dad is in the bathroom.4.Your mum is beautiful.5.She is watching TV now 6.T
2、hey are good students in my class.7.There is a bird on my head.can 的用法的用法 can 属于情态动词，一般表示能力，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，没有人称变化，不能单独使用，必须后跟动词原形。必须后跟动词原形。e.g.You/He/I can hear the music.I/She/You/He A can dance.构成：构成：Can 句型的否定句：在句型的否定句：在can 后后加加not,其余部分不变。其余部分不变。can not=cant e.g.The birds can fly.
3、The birds can not fly.Mary can dance.Mary 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 like vegetables.I dont like vegetables.2.You like vegetables.You dont like vegetables.3.He likes ve
4、getables.He doesnt like vegetables.6.They go to school.They dont go to school.4.We go to school.We dont go to school.5.You go to school.You dont go to school.I/You/We/They/The 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+其它其它构成：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 doesnt want any lamb.有能有是直接加not，无能无是借dont/doesnt,否定some要变any,记住dont/doesnt 是照妖镜,后面动词照原形.
