文档介绍：RevisionmoduleAMissXie主语+have/has+过去分词(pp.)Wehavetravelledaroundtheworld肯定形式主语+have/has+过去分词(pp.)否定形式haven’t(havenot)+过去分词/hasn’t(hasnot)+过去分词疑问句把助动词have/has放在句首WehavetravelledaroundtheworldWehaven’t(havenot)travelledaroundtheworldHavewetravelledaroundtheworld?Yes,I/,I/Wehaven’t(havenot).回答肯定:Yes,主语+have/has否定:No,主语+haven’t(havenot)/hasn’t(hasnot).havehavehashavehas1、规则变化(过去分词与过去时变化规则一样)(1)、一般动词,在词尾直接加“ed”。如:work---worked---workedvisit---visited---visited(2)、以“e”结尾的动词,只在词尾加“d”。如:live---lived2、不规则变化have—had—hadspend—spent—spentmake—made—madesay—said—saidfind—found—foundhear—heard—heard(2)过去分词与过去式形式不一样take—took—takenspeak—spoke—spokensing—sang—sungdrive—drove—drivenbe—was/were—beengo—went—gone(1)过去分词与不规则动词的过去式形式一样(3)过去分词与过去式形式不一样take—took—takenspeak—spoke—spokensing—sang—sungdrive—drove—drivenbe—was/were—beengo—went—gone(4)过去分词,过去式与动词原形一样cut—cut—cutput—put—putlet—let—letread—read—。,强调结果或对现在的影响。Someonehasbrokenthewindow.(窗户现在是坏的)Ihavealreadylostthekey.(我现在没有钥匙)Ihaven’treadthatbookyet.(不了解书的内容)Ihavejustcleanedmyhands.(手是干净的)·常与already(已经),yet(已经),just(刚刚),ever(曾经)等词连用.·already::常用于否定句,,常与包括现在在内的一段时间的状语连用。?常与for,+时间段since+时间点,since+句子(一般过去时)sincelastyear/oneyearago