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六年级英语语法知识汇总
一、词类
1、动词行为动词、be动词、情态动词
(1)行为动词原形、+s/es、+ed、+ing,具体判断方法如下
(2)be动词a、Am--wasIs--wasAre--were口诀我用am你用areis用在他她它,所有复数全用areb、肯定和否定句IamnotfromLondon.He/Sheisnotateacher.Myhairisnotlong.Hereyesarenotsmall.c、一般疑问句AmI…Yesyouare.Noyouaren’t.Areyou/they…Yeswe/theyare.Nowe/theyaren’t.IsthecatfatYesitis.Noitisn’t.is、am、are为一类,一般用于一般现在时、现在进行时和一般将来时中was和were为另一类,一般用于一般过去时
(3)情态动词can、must、should、would、may情态动词后动词总是用原形(不受其他任何条件影响)
2、名词这里强调两点不可数名词都默认为单数,所以总是用is或者was如何加后缀a.一般情况下,直接加-s,如book-booksbag-bagscat-catsbed-bedsb.以s.x.sh.ch结尾,加-es,如bus-busesbox-boxesbrush-brusheswatch-watchesc.以“辅音字母+y”结尾,变y为i再加-es,如family-familiesstrawberry-strawberriesd.以“f或fe”结尾,变f或fe为v再加-es,如knife-knivese.不规则名词复数man-menwoman-womenpoliceman-policemenpolicewoman-policewomenmouse-micechild-childrenfoot-feet.tooth-teethfish-fishpeople-peopleChinese-ChineseJapanese-Japane...。