一般情况 加 -s 1.清辅音后读/s/; map-maps
2.浊辅音和元音后 bag-bags
读 /z/; car-cars
以s,sh,ch,
x等结尾的词 加 -es 读 /iz/ bus-buses
watch-watches
以ce,se,ze,
(d)ge等结尾
的词 加 -s 读 /iz/ license-licenses
以辅音字母+y 变y 为i
结尾的词 再加es 读 /z/ baby---babies
动词第三人称单数
一、动词第三人称单数的变化规则及发音规律
动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同,请认真观察.
1、大多数动词在词尾加“S”在清辅音后发音为[s],在浊辅音及元音后发音为 [z].如:
①stop-stops [s] ; make-makes [s]
②read-reads [z] ; play-plays [z]
2、以辅音字母加“y”结尾的,要先将“y”变为“i”,然后在加“es”读[iz] 如:
fly-flies [z]; carry-carries [z]
study-studies [z]; worry-worries
3、以“s,x,ch,sh”结尾的,在词尾加“es”,发音为[iz] 如:
teach-teaches [iz]; watch-watches [iz]
4、以“o”结尾的动词,加“es”,读[z] 如:
go-goes [z] do-does [z]
下面几个动词变为单数时,原词的元音部分的发音发生了较大的变化,请注意记忆.如:
1、do [du:]-does [dz]
2、say [sei]-says [sez]
以不发音字母“e”结尾的开音节词,如果尾音是[s],[z]时,加“s”后字母“e”发音,与所加“s”
一起读做[iz].如:
close-closes [iz]
二、对比词形变化中原词词尾变化之异同:变“y”为“”现象 双写最后辅音字母现象
例词:
①baby-babies
②carry-carries
③study-studying
动词过去式和过去分词有规则变化和不规则变化两种.
1) 规则变化
一般在动词原形后加-ed look
call
open
need looked
called
opened
needed
called
opened
needed
③但fix的过去式和过去
分词x不双写,为fixed.
以-e结尾的动词加-d move
phone
hope
agree moved
phoned
hoped
agreed
hoped
以辅音字母加y结尾的动词,变y为i,
再加-ed study
carry
try studied
studied
carried studied [5stQdid]
carried [5kArid]
tried [traid]
以原音字母加y结尾的词,直接加-ed play
enjoy
stay played
enjoyed
stayed played [pleid]
enjoyed [in5dVCid]
stayed [steid]
末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed stop
plan
fit stopped
planned
fitted
以-r音节结尾的词,双写r字母,
再加-ed prefer
refer preferred
referred preferred
2) 不规则变化
英语中有些动词的过去式和过去分词形式变化不规则,可分为五种情况.
1.动词原形、过去式和过去分词完全同形.
例:
原形 过去式 过去分词
cut(切)
hit(打)
cast(扔)
hurt(伤害)
put(放)
let(让)
shut(关)
cost(花费)
set(放)
rid(清除) cut
hit
cast
hurt
put
let
shut
cost
set
rid cut
hit
cast
hurt
put
let
shut
cost
set
rid
2.过去式与过去分词完全同形.
例:
原形 过去式 过去分词
find(找到)
pay(支付)
leave(离开)
lend(借出)
meet(遇见)
keep(保持)
lose(丢失)
teach(教)
sit(坐)
lead(引导)
win(赢)除) found
paid
left
lent
met
kept
lost
taught
sat
led
won found
paid
left
lent
met
kept
lost
taught
sat
led
won
3.动词原形与过去分词同形
例:
原形 过去式 过去分词
come(来)
run(跑)