过去式不规则变化ppt课件.pptx
动词过去式不规则变化归类,一般过去时,语法：一般过去式,（1）一般过去时表示过去某个时间发生的动作或存在的状态。常和表示过去的时间状语连用。如: yesterday, last weekend, last Sunday等。例：上周末我拜访了我的祖父母。Last weekend, I visited my grandparents .（2）也表示过去经常或反复发生的动作。常和often, always等表示频度的时间状语连用。例:去年夏天我总是去游泳。Last summer,I always went swimming .,用单词的适当形式填空。1. I can _(do) some kung fu.2.Amy _(like) playing computer games last year.3.They _(see) a film yesterday.3.We _(sing) and _(dance) on Childrens Day.,do,liked,saw,sang,danced,不规则变化,规则变化,-ed,-d,双写末尾字母,把y改i,review,动词过去式规则变化,动词过去式不规则变化,am/is - wasbecome - becamebegin - beganbring - broughtbuy - boughtcan - couldcome - camecut - cut do - did draw - drewdrink - drankdrive - droveeat - atefall - fell,feel - feltfind - foundfly - flewget - gotgive - gavego - wenthave(has) - hadhear - heardhurt - hurtkeep - keptknow - knew learn - learnt learnedleave -left,let - letlose - lostmake - mademeet - metput - putread - readrun - ransay - saidsee - sawsell - soldsend - sent shall - shouldsing - sang sit - sat,sleep - sleptspeak - spokestand - stoodswim - swamtake - tookteach - taughttell - toldthink - thoughtwake - wokewear - wore will - wouldwin - wonwrite - wrote,自六年级开始，同学们就学习了很多不规则动词的过去式。面对越来越多的不规则动词过去式很多同学都头疼不已。怎样迅速记住它们而不忘呢？接下来，我们讲学习一套“不规则动词过去式速记法”，希望对同学们有所帮助。,the 1st kind:,cut - cut hurt - hurtlet - letput - putread - read,一模一样型,/i:/,/e/,这一类动词的原形和过去式是_的。,一模一样,这些不规则动词在变成过去式时，只有一个字母发生了变化.所以，只要记住这个字母的变化就可以轻松快速地完成动词向过去式的转化了。最常见的变化是元音字母a,o,e,i,u之间的转化。也有辅音字母变成t,d 的情况。,the 2nd kind:一字之差型,become - becamecome - came,begin - begandrink - drankgive - gavesing - sang sit - satswim - swam,run - ran,o a,i a,u a,the 2nd kind:一字之差型,1.元音字母a,o,e,i,u之间的变化,drive - drovewin - wonwrite - wrote,get - got,wake - woke,a o,e o,i o,draw - drewfall - fell,a e,the 2nd kind:一字之差型,2.辅音字母变t,d,make - made,send - sent,k d,d t,the 3rd kind:,加“ew”一族,这个家族变过去式时，喜欢留下单词开头的_,再加上ew，据说这样比较时髦就像我，鼻子上顶个蝴蝶也很时髦呢,辅音字母,the 4th kind:,加 ought 一族,/:/,bring - broughtbuy - boughtthink - thought,在这里，不规则动词变化最大。只留下_，后加ought。,开头的辅音字母,抓住一个调皮的小子！它悄悄地变成aught啦！,the 5th kind:,加 ould 一族,/u/,can - couldshall - shouldwill - would,这些词都是_动词哦记得后面加动词原形,情态,the 6th kind:,“OK” 一族,break - broke破坏speak - spoke说,wake - woke醒来take - took带走，上课,这个家族的不规则动词有一个共同点，那就是动词原形的后三个字母是eak/ake,在转换为过去式时变成oke/ook,所以称它们为“OK”一族。,eakoke,akeokeook,/breik/,the 7th kind:,“old” 一族,sell - soldtell - told,ellold,这个家族的不规则动词有一个共同点，那就是动词原形的后三个字母是ell,在转换为过去式时变成old,所以称它们为“old”一族。,old,the 8th kind:,加”d”一族,1.直接加_。,hear - heard,/hi/,/hd/,2.以y结尾，_再加”d”。,say - said,3.其余情况，先变形，再加”d”。,”d”,把y改i,have - _has,/sei/ /sed/,sold,told,had,the 9th kind:,加”t”一族,1.直接加_。,3.部分单词，有两个元音字母连在一起，则_加”t”.,keep - keptfeel - feltsleep - slept,2.以e结尾，去_再加”t”。,learn - learnt,lose - lost,”t”,e,leave -left,缩双元音,the 10th kind:,缩双元音一族,1. ee _,3.其余情况。,eat - _see - _,2.eep _,meet - met feed - fed,keep - kept sleep - slept,e,ept,/we/ /w:/wear -_,过去只有一只喵呢,ate,saw,wore,现在我们是两只喵,the 11th kind: 特殊情况,我才不会告诉你们，我是找不到规律了，才把它们归类成特殊情况呢,am/is - _are - _do - _go - _,find - _take - _stand - _,was,were,did,went,found,took,stood,同学们,这套“不规则动词过去式速记法”还不完整，还有许多不规则动词需要你们在以后的学习中不断地总结和补充。其实，动词过去式并不难。我相信,加上你们的努力与及时的复习，对于所学的不规则动词过去式一定掌握的。,
