一般过去时 知识点（素材）人教PEP版英语六年级下册

一般过去时 一、用法：表示过去发生的动作或存在的状态，动作结束在过去。 二、结构 1.谓语动词是be(was/were)动词 肯定句:主语+was/were 十其它 I was a student two years ago. 否定句：主语+wasn’t/weren’t 十其它 I wasn't a student two years ago. 一般疑问句:Was/Were+主语十其它 Were you a student two years ago? Yes, I was./ No, I wasn’t. 特殊疑问句: 特殊疑问词+was/were 十主语十其它? Were was she then? 2.谓语动词是实义动词 肯定句:主语十动词过去式十其它 Jim went home at 6 o'clock yesterday. 否定句:主语+didn’t +动词原形十其它 Jim didn't go home yesterday. 一般疑问：Did 十主语 +动词原形+其它? Did Jim go home yesterday ? Yes, he did. /No, he didn't. 特殊疑问句:特殊疑问词+did +主语十动词原形十其它? What did Jim do yesterday ? 三、时间状语 (1)yesterday及其构成的短语： yesterday morning / afternoon /evening the day before yesterday (2)Last十时间名词：Last night / year /month / week/ spring (3)一段时间+ago：a moment ago，an hour ago， two days ago (4)短语： just now 刚刚 at the age of … ……岁时 in the past在过去 once upon a time很久很久以前过去 四、动词过去式的变化规则 1.规则变化口诀 过去式构成有规律，一般在词尾加-ed。 help → helped 动词词尾有个e，加上-d就可以。 love → loved 重读闭一辅结尾，把它双写加-ed。 stop → stopped 辅音加y时，变y为i加-ed。 study → studied 元音字母+y结尾 ，直接加-ed。 play → played 2.部分不规则变化 （1）有a则a(aught)不算多,teach,catch就两个 无a则o(ought)三几个,bring, buy和think catch→caught teach→taught bring→brought buy→bought think→thought fight→fought （2）保持原形不变: 必须(must)让(let)他们放(put)下切(cut)刀来读(read)书,| 以免敲打(hit)受伤(hurt)花钱(cost) must→must let→let put→put cut→cut read→read hit→hit hurt→hurt cost→cost （3）"i"就变成"a": 游泳(swim)唱歌(sing)后,开始(begin) 坐(sit)下来, 给(give)点喝(drink)的吧! swim→swam sing→sang begin→began sit→sat give→gave drink→drank （4）"ow/aw"就会变成"ew": 长(grow)大后知道(know)不要 乱扔(throw)乱吹(blow)乱画(draw) grow→grew know→knew throw→threw blow→blew draw→drew （5）动词中间两个“e”,去掉一个后加"t"; 如果"t,d"来结尾,去"e"之后不加"t": feel→felt keep→kept sleep→slept sweep→swept meet→met feed→fed （觉得,保持,睡觉再扫除,比遇见,喂养多个t） （6）变"i"为"o": 在阳光“照耀”下“骑”车”开“车”写”字,我“i”就变成零“o”。 shine→shone ride→rode drive→drove write→wrote （7）后"l"变"d";"e"变"o":讲述(tell),销售,卖(sell)到老(old) tell→told sell→sold （8）变”e"改为"o" ：得到(get)又忘记(forget) g