不规则动词过去式和过去分词课件.pptVIP

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).花费costcostcosthithithit打cutcutcut剪，切put放putput让letsetletletset放置，设定setshut关闭shutshuthurthurthurt伤害readreadread阅读

1.A---------A---------A型(原形.相同).broadcast过去式.过去分词广播broadcastbroadcastburstburst爆发burstcastsplitspreadcastcastsplitsplit撒,扔,抛撕开传播,展开spreadspread

2.A---------B-----------A型（现在式和过去分词同形）come来camecomebecomebecomebecameovercomeovercameovercome成为克服跑,经营runranrun3.A-------A----------B型（现在式和过去式同形）beatbeaten打败，击打beat

4A------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：bentbent使弯曲builtbendbulit建筑/造buildlendsendlentlent借出sentsent送，寄spentspendspent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tburnburntburnt燃烧/burned/burned做梦dreamlearnmeandreamtdreamt/dreamed/dreamedlearnt/learned/learned学习learnt意思是,意味meantmeant

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：失去,丢失闻到losesmelllostlostsmeltsmelt/smelledspelt/spelled/smelled拼写/spelledspellspelt

4.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：流血喂,饲养遇见bleedfeedmeetbledbledfedfedmetmetspedspeedsped快速前进/speeded/speeded

4.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。feltfeltfeelkeepsleepsweepweep觉得，触摸保持，保存睡觉keptkeptsleptsleptsweptswept扫,扫除weptwept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。catchteachcaughttaughtcaughttaught抓住，赶上教

4.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：带来买打架bringbuyfightseekthinkbroughtbroughtboughtboughtfoughtfoughtsought探寻thought想,认为soughtthought注意：原形中没有a字母的改为-ought有a的改为-aught

4.A--------B---------B型(过去式和过去分词同形).(8)-ay?-aidpaidpaidsaidsaid-aid付钱说，讲paysaylay放置，下蛋laidlaid注意区别lieliedliedlaylainlaid躺下,位于说谎lielaid

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owonwinshine赢，胜利wonshoneshone/shined/shined照耀,发光

4.A--------B---------B型(过去式和过去分词同形).(10)原形中的字母i改为asatsatsitspit坐spatspat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站,忍受standunderstandst