动词原型变动词三单的规则
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动词原型变动词三单的规则
动词原型变动词三单的规则
动词原型变动词三单的规则
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]
be动词包括:am,is,are.第三人称单数用 is;过去式为 was;复数用are,过去式为were.
除上述规律外,还应注意下面三点:
1.动词 have ,遇到主语是第三人称单数时,要用 has; 动词 be 的第三人称单数形式是is.
2.含有动词第三人称单数形式的句子变否定句时,要用 doesn't + 动词原形,如:
He goes to school at six in the morning.(变否定句)→ He doesn't go to school at six in the morning.
3.对含有动词第三人称单数形式的句子提问时,要用助动词 does,如:
She goes home at five every day.(对划线部分提问)→ When / What time does she go home every day?