单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,精,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,*,动词变形,现在分词,精,动词变形,过去分词的用法,表示动作的完成或者被动,精,过去分词的用法表示动作的完成或者被动精,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,精,过去分词的不规则变化一.AAA型（动词原形、过去式、过去分词,二.AAB型（动词原形与过去式同形）,beat,（跳动）,-beat-beaten,精,二.AAB型（动词原形与过去式同形）beat（跳动）-b,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-run,精,三.ABA型（动词原形与过去分词同形）become（变成）,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）,精,1.过去式和过去分词都含有-ought。四.ABB型（过,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,精,2.词尾有-ild，-end时，只需把d变为t。精,4把-eep变为-ept。,keepkeptkept s,leepsleptslept,sweep sweptswept,5.把-ell变为-old。,telltoldtold,sellsoldsold,精,4把-eep变为-ept。精,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,精,6过去式、过去分词都含有-elt或-ilt。精,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,精,8过去式、过去分词词尾去y变-id 精,10改变元音字母。,meetmetmet getgotgot,sitsatsat findfoundfound,holdheldheld spitspatspat,shineshoneshone winwonwon,hanghunghung dig dugdug,loselostlost,精,10改变元音字母。精,11.改变元、辅音字母。,leaveleftleft,standstoodstood,have（has）hadhad,understandunderstoodunderstood,精,11.改变元、辅音字母。精,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,sing sangsung,ringrangrung,swimswamswum,sink sanksunk,精,五.ABC型（动词原形、过去式与过去分词三者不同形）1.i,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）,精,2.词尾为-ow，-aw时，过去式将其变为-ew，过去分词在,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,riseroserisen,精,3.词尾为“i辅（1个）e”，过去式将i变为o，过去分词,4.,过去分词在过去式后加（,e,）,n,。,breakbrokebroken,choosechosechosen,freezefrozefrozen,speakspokespoken,wakewoke woken,精,4.过去分词在过去式后加（e）n。精,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）,精,5.过去分词由过去式加-ten构成。forgetfo,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,精,7.词尾为-ake时，过去式将其变为-ook，过去分词在原形,