小学-英语-牛津译林版(三起)-四年级上册-小学英语肯定变-否定句 微课版本2.pptVIP

小学英语句型转换 ———肯定句变否定句 含有否定词（not）等表达否定意义的句子（通常翻译之后句子中含有“不”字） 否定句中too和either，some与any的用法 情态动词的否定 Be动词的否定 实意动词的否定 构成：be＋not is→is not / isnt am→am not are→are not / arent be动词有三个，分别是：am is are ⑴ I am a girl. I am a girl. not ⑵ You are short. You are short. not ⑶ She is beautiful. She is beautiful. not 构成： 情态动词后＋not 现阶段我们接触的情态动词有：can、would can→can not/ cant would→would not/ wouldnt 1.I can swim. I can not swim. 2.My father would like a fan. My father would not like a fan. 构成：1.实意动词前加dont 2.第三人称单数时 实意动词前加doesnt，后面动词变原形 现阶段我们接触的实意动词有：like、have dont=do not (主语不是第三人称单数) doesnt=does not(主语是第三人称单数) 1. I have a box in my bag . I have a box in my bag . don t 2. She likes apples. She apples. doesnt like 1. 否定句中too要变为either 2. 否定句中some要变为any He can sing too . He can’t sing either. I have some apples. . I don’t have any apples.