1.把动词原形中的i改为a,变成过去式.如:
begin—began,drink—drank,give—gave,ring—rang,sing—sang,sit—sat,swim—swam
2.把重读开音节中的i改为o,变成过去式.如:
drive—drove,ride—rode,write—wrote
3.改动词原形中的aw /ow为ew,变成过去式.如:
draw—drew,grow—grew,know—knew,throw—threw(动词show除外,show—showed)
4.动词原形中的e改为o,变成过去式.如:
get—got,forget—forgot
5.动词原形中的ee改为e,变成过去式.如:
feed—fed,meet—met
6.动词原形中的eep改为ept,变成过去式.如:
keep—kept,sleep—slept,sweep—swept
7.动词原形中的eak改为oke,变成过去式.如:
break—broke,speak—spoke
8.动词原形中的ell改为old,变成过去式.如:
sell—sold,tell—told
9.动词原形中的an改为oo,变成过去式.如:
stand—stood,understand—understood
10.以ought和aught结尾,且读音是〔 :t〕的过去式.如:
bring—brought,buy— bought,think—thought,catch—caught,teach—taught
11.以ould结尾且读音为〔ud〕的情态动词过去式.如:
can—could,shall—should,will—would
12.把动词原形中的o改为a,变成过去式.如:
come—came,become—became
13.在动词原形后加d或t变成过去式,并且发生音变.如:
hear〔hi 〕—heard〔h :d〕, say〔sei〕—said〔sed〕,mean〔mi:n〕—meant〔ment〕
14.动词的过去式与动词原形一样.如:
let—let,must—must,put—put,read—read〔red〕
15.不符合上述规律的动词过去式.如:
am,is—was,are—were,build—built,do—did,eat—ate,fall—fell,feel—felt,find—found,fly—flew,go—went,have /has— had,hold—held,leave—left,make—made,may—might,run—ran,see—saw,take—took
猜你喜欢
- 1已知绝对值x-根号y+根号x的立方根-27=0,则y的x次方的立方根是?
- 2诗词《春夜喜雨》
- 3用数字2,7,8,9,通过加减乘除和括号,如何才可以等于24,注意每个数字只能用一次!
- 4把一个底面半径1分米,高3分米的圆锥形铁块浸没在一个装满水的水桶里,会有多少立方
- 540w的电感镇流器可以用来接20w的灯管吗?
- 6在一张长20厘米、宽16厘米的长方形纸中剪出一个最大的圆.⑴剪出的圆的面积是多少平方厘米?⑵剪去部分的面积是多少平方厘米?(要有过程)
- 7照样子,写词语.如:沙沙响
- 8若不等式x^2+sinx-ax>0对于(0
- 9Towards____ evening a cold rain began to fall.
- 10只用一种试剂可鉴别(NH4)2SO4、NH4Cl、AlCl3、Na2SO4和NaCl五种溶液,这种试剂是( ) A.NaOH B.HCl C.Ba(OH)2 D.H2SO4