新人教七年级下册英语unit 11语法讲解及练习一般过去时1、概念：一般过去时表示过去某个时间发生的动作或存在的状态，和表示过去的时间状语连用，last year, yesterday, in 1990, two days ago等； ①I saw him in the street yesterday. 昨天我在街上看见他了。 ②Li Mei always went to school on foot last year. 去年总是步行上学。2、一般过去时的构成：be动词的一般过去时的构成：第一人称单数和第三人称单数用was, 其余人称用were①I was ten years old at that time. ②There were many people standing in front of the door.实义动词的一般过去时的构成：(1) 规则动词过去式的构成有四条规则：①一般在动词原形末尾直接加上ed。look---looked work---worked jump---jumped②以不发音的字母e结尾的动词，直接加d。live---lived close---closed dance---danced ③末尾只有一个辅音字母的重读闭音节，先双写这个辅音字母，再加ed。stop---stopped ④末尾是辅音字母加y结尾的动词，先变y为i，然后再加ed。study---studied try---tried (2) 不规则动词的过去式需特殊记忆。 原形过去式原形过去式原形过去式am/iswassaysaidleaveleftarewereseesawletleftbringbroughtsellsoldloselostbuyboughtsingsangmakemadecomecamesitsatmeetmetcutcutsleepsleptpaypaiddoes/dodidspeakspokeputputdrawdrewspendspentreadreaddrinkdrankstandstoodrunrandrivedroveswimswamforgetforgoteatatetaketookgetgotfeedfedteachtaughtgowentfeelfelttelltoldgrowgrewfightfought |
