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1、动词变形,现在分词,过去分词的用法,表示动作的完成或者被动,过去分词的不规则变化,一.AAA型(动词原形、过去式、过去分词同形),cost(花费)cost-cost cut(割)-cut-cut hit(打)-hit- hit hurt 伤害)-hurt- hurt let(让)-let -let put(放)-put -put read (读)-read- read,二.AAB型(动词原形与过去式同形),beat(跳动)-beat- beaten,三.ABA型(动词原形与过去分词同形),become(变成)-becamebecome come(来)-came -come run(跑)-ran
2、 -run,1.过去式和过去分词都含有 -ought。 bringbroughtbrought buyboughtbought thinkthoughtthought,四.ABB型(过去式与过去分词同形),2.词尾有-ild,-end时,只需把d变为t。 buildbuiltbuilt lendlent lent sendsentsent spendspent spent 3过去式、过去分词都含有 -aught。 catchcaughtcaught teachtaughttaught,4把-eep变为-ept。 keepkeptkept s leepsleptslept sweep swept
3、swept 5.把-ell变为-old。 telltoldtold sellsoldsold,6过去式、过去分词都含有-elt或-ilt。 smellsmeltsmelt spellspeltspelt feelfelt felt spillspiltspilt 7过去式、过去分词都在原形词尾加t。 learnlearntlearnt meanmeantmeant spoilspoiltspoilt,8过去式、过去分词词尾去y变-id saysaidsaid paypaidpaid laylaidlaid hearheardheard 9改变辅音字母。 makemademade,10改变元音字
4、母。 meetmetmet getgotgot sitsatsat findfoundfound holdheldheld spitspatspat shineshoneshone winwonwon hanghunghung dig dugdug loselostlost,11.改变元、辅音字母。 leaveleftleft standstoodstood have(has) hadhad understandunderstoodunderstood,五.ABC型(动词原形、过去式与过去分词三者不同形),1.iau变化。 beginbeganbegun drinkdrankdrunk sin
5、g sangsung ringrangrung swimswamswum sink sanksunk,2.词尾为-ow,-aw时,过去式将其变为-ew,过去分词在其原形后加n。 blowblewblown drawdrewdrawn grow grewgrown knowknewknown throwthrewthrown (show除外),3.词尾为“i辅(1个)e”,过去式将i变为o,过去分词多在原形后加n,若那个辅音字母为d或t,须双写d或t后加n。(give,hide除外) drivedrovedriven writewrotewritten ride roderidden riser
6、oserisen,4.过去分词在过去式后加(e)n。 breakbrokebroken choosechosechosen freezefrozefrozen speakspokespoken wakewoke woken,5.过去分词由过去式加-ten构成。 forgetforgotforgotten 6.过去分词由原形加(e)n构成。 bewas(were)been eatateeaten fallfellfallen givegavegiven seesawseen hidehidhidden(hid),7.词尾为-ake时,过去式将其变为-ook,过去分词在原形词后加-n。 taketooktaken mistakemistookmistaken 8.原形、过去式和过去分词都不相同。 dodiddone flyflewflown gowentgone lielaylain showshowedshown wearworeworn,