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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,*,初中英语动词过去式与过去分词,初中英语动词过去式与过去分词,1.,掌握规则动词过去式与过去分词的变,化规则;,2.,掌握不规则动词过去式与过去分词的正确拼写。,Teaching aims,1. 掌握规则动词过去式与过去分词的变 Teaching,一、动词的,过去式,和,过去分词,的区别:,动词的过去式,:,作一般过去时态中的谓语:,动词的过去分词:,用于完成时态、被动语态中,二、,规则动词,和,不规则动词,一、动词的过去式和过去分词的区别:二、规则动词和不规则动词,1,)一般情况下,动词词尾加,-ed ,,如:,work play want act,4),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:,stop drag drop plan,3),以辅音字母,+ y,结尾的动词,把,-y,变为,-i,,加,-ed,,如:,stud tr cop carr,2),以不发音的,-e,结尾动词,动词词尾加,-d,,,如:,live move decide hope,ed,ed,ed,ed,d,d,d,d,ied,ied,ied,ied,y,y,y,y,ped,ged,ped,ned,1. 规则动词,4)以一个辅音字母结尾的重读闭音节动词,3)以辅音字母 +,A - A - A,型(,同形,),cost,花费,hit,打,cut,剪切,put,放,let,让,set,使处于,shut,关闭,hurt,伤害,read,阅读,spread 展开,cost cost,hit hit,cut cut,put put,let let,set set,shut shut,hurt hurt,read read,spread spread,2. 不规则动词,A - A - A型(同形)cos,2.,A - B - A,型,(现在式和过去分词同形),come,来,become,成为,run,跑,3.,A - A - B,型,(现在式和过去式同形),beat,打,beat beaten,came come,became become,ran run,2. A - B -,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:,build,建筑,造,lend,借出,send,送,寄,spend,花费,度过,buil,t,buil,t,len,t,len,t,sen,t,sen,t,spen,t,spen,t,4. A - B - B型buil,4.,A - B - B,型,(,过去式和过去分词同形,).,(2) 原形后加字母 t。,burn 燃烧,dream 做梦,learn 学习,mean 意思是,burn,ed,burn,ed,burn,t,burn,t,dream,t,dream,t,learn,t,l,earn,t,mean,t,mean,t,dream,ed,dream,ed,learn,ed,l,earn,ed,4. A - B - B型b,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:,lose 失去, 丢失,smell 闻到,spell 拼写,los,t,los,t,smel,t,smel,t,smell,ed,smell,ed,spel,t,spel,t,spell,ed,spell,ed,4. A - B - B,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:,feed,喂,饲养,meet,遇见,speed,快速前进,f,e,d f,e,d,m,e,t m,e,t,sp,e,d sp,e,d,speed,ed,speed,ed,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(5),e,e,改为,一个字母e,再,在词尾加t。,feel 觉得,触摸,keep 保持,保存,sleep 睡觉,f,e,l,t,f,e,l,t,k,e,p,t,k,e,p,t,sl,e,p,t,sl,e,p,t,4. A - B - B,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。,catch,抓住,赶上,teach,教,原形中有字母,a,的改为,aught,c,aught,c,aught,t,aught,t,aught,4. A - B - B,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:,bring,带来,buy,买,fight,打架,think,想,认为,br,ought,br,ought,b,ought,b,ought,f,ought,f,ought,th,ought,th,ought,原形中没有,a,字母的改为,-ought,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(8),-ay,-aid,-aid,pay,付钱,say,说,讲,lay,放置,孵,注意区别,lie,说谎,lie,躺下,位于,lay,放置,下蛋,p,aid,p,aid,s,aid,s,aid,l,aid,l,aid,lie,d,lie,d,l,ay,l,ain,l,aid,l,aid,4. A - B - B,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。,win,赢,胜利,shine 照耀, 发光,w,o,n w,o,n,sh,o,ne sh,o,ne,shine,d,shine,d,4. A - B - B,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,a,。,sit 坐,s,a,t s,a,t,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(11) 原形中的an变为oo。,stand,站, 忍受,understand 明白,st,oo,d st,oo,d,underst,oo,d underst,oo,d,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(12),-ell,-old,sell,卖,出售,tell,告诉,s,old,s,old,t,old,t,old,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(13) 原形中间的元音字母变成u。,dig 挖,掘,stick,粘住,坚持,hang 悬挂,d,u,g d,u,g,st,u,ck st,u,ck,h,u,ng h,u,ng,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(14),其他的变化形式。,find 发现,get 得到,到达,have 有,吃,hear 听见,hold 握住,举行,lead 带领,f,ou,nd,f,ou,nd,g,o,t,g,o,t,ha,d,ha,d,hear,d,hear,d,h,e,ld,h,e,ld,l,e,d,l,e,d,4. A - B - B,4.,A - B - B,型,(,过去式和过去分词同形,).,(14),其他的变化形式。,leave 离开,遗留,light 点燃,点亮,make 制造,使,left left,lit,/,lighted lit,/,lighted,made made,4. A - B - B,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(1),i, a u,begin 开始,着手,drink 喝,饮,ring 响铃,打电话,sing 唱歌,swim 游泳,beg,a,n beg,u,n,dr,a,nk dr,u,nk,r,a,ng r,u,ng,s,a,ng s,u,ng,sw,a,m sw,u,m,5. A - B - c,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(2),-ow,-ew -own,blow 吹, 刮风,grow 成长, 种植,know 知道, 认识,throw 投, 扔,draw 绘画,拖,fly 飞,飘,bl,ew,bl,own,gr,ew,gr,own,kn,ew,kn,own,thr,ew,thr,own,dr,ew,dr,awn,fl,ew,fl,own,5. A - B - c,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(3) -ear,-ore,-orn,bear,生育,忍受,wear,穿,戴,bore born / borne,wore worn,5. A - B - c,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(4),过去分词是在原形词尾加,-n,或,-en,rise 上升, 上涨,be 是,drive 驾驶, 驱赶,give 给, 付出,eat 吃,r,o,se,rise,n,was/were been,dr,o,ve,drive,n,g,a,ve,give,n,at,e,eat,en,5. A - B - c,(4),过去分词是在原形词尾加,-n,或,-en,fall 落下,倒,see 看见,show 显示,take 拿走, 花费,mistake 弄错,shake 动摇,f,e,ll,f,a,ll,en,s,aw,see,n,show,ed,show,n,/,show,ed,t,oo,k,take,n,mist,oo,k,mistake,n,sh,oo,k,shake,n,(4)过去分词是在原形词尾加-n或-enfell,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(4),特殊形式:,hide,隐藏,躲藏,ride,骑,乘车,write,写,著述,hid hidden,rode ridden,wrote written,5. A - B - c,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(5),过去分词是在过去式后面,-n,或,-en,。,wake,唤醒,醒来,break,打破,speak,说,发言,choose,选择,forget,忘记,steal,偷盗,窃取,w,o,k,e,wok,e,n,br,o,k,e,br,o,k,e,n,sp,o,k,e,sp,o,k,e,n,ch,o,s,e,ch,o,s,e,n,forg,o,t forg,o,t,ten,st,o,le st,o,l,e,n,5. A - B - c,5.,A - B - c,型,(,原型,过去式和过去分词,各不相同,).,(6,),其他变化形式的动词。,do,做,干,go,去,到达,lie,躺,位于,did done,went gone,lay lain,5. A - B - c,6,、情态动词,(,没有过去分词,),can,could,能,may,might,也许,must,必须,shall,should,将要,will,would,会,6、情态动词 (没有过去分词),1.,熟记规则动词过去式与过去分词,的变化规则;,2.,在默写本上默写不规则动词过去,式与过去分词。,Summaryand Homework,1.熟记规则动词过去式与过去分词Summaryand Hom,
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