第三人称单数什么时候加S?什么时候加ES?

第三人称单数问题

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]
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