英语三单怎么变
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发布时间:2022-10-11 05:39
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时间:2023-10-11 15:33
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。
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
[:]-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?