规律版不规则动词过去式和过去分词.ppt

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1、不规则动词过去式和过去分词1.A------A------A型(原形.过去式.过去分词同形).costcostcost花费hithithit打cutcutcut剪切putputput放letletlet让setsetset使处于shutshutshut关闭hurthurthurt伤害readreadread阅读1.A---------A---------A型(原形.过去式.过去分词相同).broadcastbroadcastbroadcast广播burstburstburst爆发castcastcast撒,扔,抛splitsplitsplit撕开spread

2、spreadspread展开2.A---------B-----------A型（现在式和过去分词同形）comecamecome来becomebecamebecome成为overcomeovercameovercome克服runranrun跑3.A-------A----------B型（现在式和过去式同形）beatbeatbeaten打4.A------B------B型(过去式和过去分词同形).(1)单词末尾的字母-d改为-t。如：bendbentbent使弯曲buildbuiltbuilt建筑，造lendlentlent借出sendsentsent送，寄

3、spendspentspent花费，度过4.A-------B--------B型(过去式和过去分词同形).(2)原形后加一个字母t。burnburntburnt燃烧/burned/burneddreamdreamtdreamt做梦/dreamed/dreamedlearnlearntlearnt学习/learned/learnedmeanmeantmeant意思是4.A--------B---------B型(过去式和过去分词同形).(3)原形最后一个字母改为t。如：loselostlost失去,丢失smellsmeltsmelt闻到/smelled/sme

4、lledspellspeltspelt拼写/spelled/spelled4.A--------B---------B型(过去式和过去分词同形).(4)原形中的双e变单e。如：bleedbledbled流血feedfedfed喂,饲养meetmetmet遇见speedspedsped快速前进/speeded/speeded4.A--------B---------B型(过去式和过去分词同形).(5)原形中的ee去掉一个字母e,然后在词尾加t。feelfeltfelt觉得，触摸keepkeptkept保持，保存sleepsleptslept睡觉sweepswep

5、tswept扫,扫除weepweptwept哭泣,流泪4.A--------B---------B型(过去式和过去分词同形).(6)过去式和过去分词都以aught结尾的动词。catchcaughtcaught抓住，赶上teachtaughttaught教注意：原形中有字母a的为aught4.A--------B---------B型(过去式和过去分词同形).(7)过去式和过去分词都以ought结尾的动词。如：bringbroughtbrought带来buyboughtbought买fightfoughtfought打架seeksoughtsought探寻thi

6、nkthoughtthought想,认为注意：原形中没有a字母的改为-ought4.A--------B---------B型(过去式和过去分词同形).(8)-ay-aid-aidpaypaidpaid付钱saysaidsaid说，讲laylaidlaid放置，下蛋注意区别lieliedlied说谎lielaylain躺下,位于laylaidlaid放置，下蛋4.A--------B---------B型(过去式和过去分词同形).(9)原形中的字母i改为o。winwonwon赢，胜利shineshoneshone照耀,发光/shined/shined4.A-

7、-------B---------B型(过去式和过去分词同形).(10)原形中的字母i改为a。sitsatsat坐spitspatspat吐痰4.A--------B---------B型(过去式和过去分词同形).(11)原形中的an变为oo。standstoodstood站,忍受understandunderstoodunderstood明白misunderstandmisunderstoodmisunderstood误会4.A--------B---------B型(过去式和过去分词同形).(12)-ell-oldsellsoldsold卖,出售tell

8、toldtold告诉retellret