内容正文:
动词的第三人称单数形式变化
I______________ in the evening.
She ______________in the evening.
read books
reads books
read books
三单
三单
Lead in
人称代词:he she it
什么是第三人称单数?
以及所有能够被he,she,it 代替的其他主语,例如:my father , Miss Zhang, Mike 等等
一般情况下在词尾加“-s”,如:like--likes play--plays
动词第三人称单数形式变化规则
1
2
以"辅音字母+y"的动词,先把"y"变成"i",再加"-es",如:fly--flies
以-ch,-sh,-o,-s,-x结尾的动词,在词尾加“-es”。如:go--goes
watch--watches
3
4
还有个别单词是特殊形式,如:have--has
It's a
动词第三人称单数
动词第三人称单数
Henry sees his shadow.
动词第三人称单数
主语第三人称单数
总结:
写出下列动词的第三人称单数。
drink
look
pass
make
do
plant
drinks
does
plants
looks
makes
passes
你会做了吗?
do_________ cook_________
study_________ play__________
go _________ watch__________
live_________ like____________
have_________ wash____________
does
cooks
studies
plays
goes
watches
lives
likes
has
washes
给出下列动词的三单形式
let's practice !
Read and choose
1.He_____________ (lives/live) in Beijing.
2.My friend _______ (likes/like) doing kung fu.
3.John usually________(goes/go) to school on foot.
4.I often ____________(sings/sing).
5.Sarah _____________(likes/like) running.
Tip
likes
goes
sing
likes
lives
主语
6.Peter and I (likes/like)swimming.
like
Tip
变一般疑问句时,如果句子中没有am,is,are和can,就需借助助动词do/does ,并将它们放在句首,后面动词用原形;
1.I go to school on foot.
2.Amy goes to school by bike.
you go to school on foot?
Amy go to school by bike?
借助do/does ,取决于句子的谓语动词,谓语动词是原型借助do,谓语动词是第三人称单数形式。
用什么提问,用什么回答!
Yes, I do. / No, I don't.
Yes, she does. / No, she doesn't.
Do
Does
1.He teaches English.
2.Mike studies Chinese.
3.I live in China.
4.Sarah likes going hiking.
he teach English?
Have a try: 变为一般疑问句
Mike study Chinese?
you live in China ?
Sarah like going hiking ?
Does
Does
Do
Does
写出下列动词的第三人称单数。
drink
look
pass
make
do
plant
drinks
does
plants
looks
makes
passes
你会做了吗?
the dog
her father
my friends
our teacher
Benny and Linda
判断下列单词哪些是第三人称单数
✘
✔
✔
✔
✘
原形 三单式
look - looks
play - plays
write - writes
like - likes
visit - visits
动词三单式变化规则(一)
1.一般情况,直接+s
原形 三单式
miss - misses(错过,怀念)
wash - washes
watch - watches
fix - fixes(固定,修理)
do - does
go - goes
动词三单式变化规则(二)
2.以s,sh,ch,x,o结尾的动词,在词尾+es
原形 三单式
fly - flies
try - tries
cry - cries
动词三单式变化规则(三)
3.以辅音字母+y结尾的动词,变y为i,再+es
元音字母+y结尾的动词
直接+s,如play-plays
原形 三单式
have - has
be - is
动词三单式变化规则(四)
4.不规则
动词三单式变化规则
动词第三人称单数
动词第三人称单数
Henry sees his shadow.
动词第三人称单数
主语第三人称单数
你会做了吗?
用所给动词的正确形式补全句子。
1.Lingling often_____( take )a walk in the park .
2. My father ________ ( clean )the windows.
takes
cleans
3. Planting trees ______( be ) good for us.
is
Summary
1.动词三单式的定义:
在一般现在时中,当主语是第三人称单数时,
谓语动词要用第三人称单数形式
2.动词三单式变化规则:
(1)一般情况,直接+s
(2)以s,sh,ch,x,o结尾的动词,在词尾+es
(3)以辅音字母+y结尾的动词,变y为i,再+es
(4)不规则
情 况 方 法
1 一般情况 在词尾+s
2 以辅音字母+“y”结尾 变“y”为“i”+ es
3 以“o,s,x,ch,sh”结尾 在词尾+es
4 特殊变化 没有规律
Tip
第三人称单数作主语,在表达经常性的、习惯性的动作、存在的状态时,后面的谓语动词要变为第三人称单数形式。
Summary
知识点
变一般疑问句时,如果句子中没有am,is,are和can,就需借助助动词do/does ,并将它们提前放在句首,后面动词用原形;
Thank you!
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