中考英语语法专题教案-现在完成时与过去完成时(共5页).doc

专题 现在完成时构成Have/has +过去分词现在完成时的肯定式、否定式和疑问式：肯定式否定式疑问式单数I haveYou have + workedHe/She/It hasI haveYou have + not workedHe/She/It hasHave IHave you + worked?Have he/she/it 复数WeYou +have workedTheyWeYou +have not workedTheyHave weHave you + worked?Have they【提示】现在完成时的肯定式和否定式有其缩写形式：haveve, hass.例如：Shes worked. =She has worked. Ive not worked. = I havent worked.现在完成时的否定疑问句形式为：Have you not worked? Have they not wo