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1、英语不规则单词的过去式和过去分词 amareis waswere been bear bore born 忍受；具有；支撑beat beat beaten打；打败；拍打；有节奏地舒张与收缩become became become成为；变得；变成begin began begun 开始blow blew blown风吹；喘气break broke broken打破，弄破；中断；弄坏；削弱bring brought brought带来；促使；引起；使某人处于某种情况或境地build built built . 建立；建筑burn burnt burnt燃烧；烧毁，灼伤；激起的愤怒buy bough
2、t bought购买；获得；贿赂can could 能catch caught caught vt. 赶上；抓住；感染；了解choose chose chosen选择，挑选come came come来；开始；出现；发生；变成；到达cost cost cost花费；使付出；使花许多钱cut cut cut切割；削减；缩短；刺痛dig dug dug挖，掘；探究do did done做；进行；完成；解答draw drew drawn拉；拖drink drank drunk喝，饮；吸收；举杯庆贺drive drove driven驾驶eat ate eaten吃，喝；腐蚀；烦扰fall fell
3、fallen落下；变成；来临；减弱feed fed fed喂养；供给；放牧；抚养（家庭等）；靠为生feel felt felt感觉；认为；触摸；试探fight fought fought打架；与打仗，与斗争；反对提案find found found发现；认为；感到；获得fly flew flown飞行；飞越；使飘扬forget forgot forgetten忘记；忽略freeze froze frozen冻结；冷冻；僵硬get got got使得；获得；受到；变成give gave given给；产生；让步；举办；授予go went gone走；达到；运转；趋于grow grew grown
4、生长；种植；扩展hang hung hung悬挂，垂下；装饰；绞死；使悬而未决have had had 有；让；拿；从事；允许hear heard heard听到，听；听说；审理hide hid hidden隐藏；隐瞒；鞭打hit hit hit打击；袭击；碰撞；偶然发现；伤的感情hold held held持有；拥有；保存；拘留；约束或控制hurt hurt hurt使受伤；损害；使疼痛；使痛心keep kept kept保持；维持；保管kneel knelt knelt跪下，跪know knew known知道；认识；懂得lay laid laid躺下；产卵；搁放lean leant le
5、ant倾斜；倚靠；倾向；依赖leave left left离开；留下；遗忘；委托let let let允许，让；出租；假设；妨碍lie lay lain躺；说谎；位于；展现lose lost lost失败；受损失make made made使得；进行；布置，准备，整理；制造；认为；获得；形成；安排；引起；构成may might 可以；或许（may的过去式）；应该mean meant meant meet meet met满足；遇见；对付melt melted melted 熔化，溶解；渐混pay paid paid支付，付；偿还，补偿put put put放；表达；移动；安置；赋予read r
6、ead read阅读；读懂，理解ride rode ridden骑；乘；控制ring rang rung按铃；包围；敲钟；套住rise rose risen上升；增强；起立；高耸run ran run跑 管理，经营；运行；参赛say said said see saw seen sell sold sold销售；推销；出卖；欺骗send sent sent发送，寄；派遣；使进入；发射sew sewed sewn缝合，缝上；缝纫shake shook shaken动摇；摇动；震动shine shone shone照耀；显露；出众show showed shown显示；说明；演出；展出shut s
7、hut shut关闭；停业；幽禁sing sang sung唱歌；歌颂；鸣叫；呼号sink sank sunk使下沉；挖掘；使低落sit sat sat坐；位于sleep slept slept smell smelt smelt嗅，闻；察觉到；发出的气味speak spoke spoken speed sped sped超速，加速；加速，迅速前行；兴隆spell spelt spelt拼，拼写；意味着；招致；拼成；迷住；轮值spend spent spent花钱；用尽，耗尽spin spun spun旋转；纺纱；吐丝；晕眩spread spread spread传播，散布；展开；伸展；铺开s
8、pring sprang sprung生长；涌出；跃出；裂开stand stood stood站立；位于；停滞steal stole stolen剽窃；偷偷地做；偷窃stick stuck stuck坚持；伸出；粘住sweat sweated sweated出汗；辛苦工作；懊恼；结水珠sweep swept swept扫，打扫；席卷；扫视；袭击swim swam swum游泳；漂浮；浸；眩晕swing swung swung摇摆；转向；悬挂；大摇大摆地行走take took taken拿，取；采取；吃；接受teach taught taught教授；讲授；当老师tell told told告诉
9、，说；辨别；吩咐；断定think thought thought想；认为throw threw thrown understand understood understood wake woke woken wear wore worn win won won write wrote written 只有这些 规则动词的过去式变化如下： 一般情况下，动词词尾加 -ed ，如： worked played wanted acted 以不发音的 -e 结尾动词，动词词尾加 -d，如： lived moved decided declined hoped judged raised wiped 以辅
10、音字母 + y结尾的动词，把-y变为-i 再加-ed，如： studied tried copied justified cried carried embodied emptied 以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 -ed，如： stopped begged fretted dragged dropped planned dotted dripped 注：不规则动词的过去式变化规律性不强，须多加记忆。 go - went make - made get - got buy - bought come - came fly-flew 氨氧化催化剂往往亦可用作醛类氧化催化剂,其原因是由于这两类反应通过类似的历程,形成相同的氧化中间物之故。上列反应中以丙烯氨氧化合成丙烯腈最为重要,下面即以此反应为例进行讨论。
