人教新目标(Go for it)版七年级下Unit 2 What time do you go to school?第三人称单数概念及用法课件（24张PPT）

(共24张PPT)
第三人称单数形式
第三人称单数范围大家都知道，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，即常在动词原形后加-s或-es。
但有些同学们对于哪些主语是第三人称单数还不十分清楚。
第三人称单数主语
第一人称：我，我们（I，we）
第二人称：你，你们（you）
第三人称：除了第一第二人称，其他都是
第一、第二、第三人称各是什么？
第三人称是相对于对话时，某一句话中，言语发出方（第一人称）和言语的听受方（第二人称）以外的其它人称。
单数是指该句中提到的其它人是一个人，相对于两个人或更多人（复数）。
第三人称单数是语言中对话双方外其它某一个人指示时使用的代词。（简称三单）
你能分辨出第三人称单数吗？
she
Bob and Tom
we
his father
I
the cat
some bread
my grandparents
this
5 oranges
he
ice-cream
they
the boy
it
those
一、人称代词he, she, it
①He likes watching TV. 他喜欢看电视。
②She has lunch at twelve. 她十二点吃午餐。
③It looks like a cat. 它看起来像只猫。
二、单个人名、地名或称呼作主语
①Han Mei looks like her mother.
韩梅看起来像她的母亲。
②Beijing is in China.
北京在中国。
③Uncle Wang often makes cakes.
王叔叔经常做蛋糕。
三、单数可数名词或"this / that / the+单数可数名词"作主语时
①A horse is a useful animal.
马是有用的动物。
②This book is yours.
这本书是你的。
③That car is red.
那辆小汽车是红色的。
④The cat is Lucy's.
这只猫是露茜的。
四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时
①Everyone is here.
大家到齐了。
②There is something wrong with the watch.
这块手表有毛病。
③This is a pen.
这是一支钢笔。
④That is an eraser.
那是一块橡皮擦
五、不可数名词作主语时为第三人称
单数。
①The milk is in the glass.
牛奶在玻璃杯里。
②The bread is very small.
那面包很小。
六、当数字或字母作主语时， 看作第三人称单数。
①"6" is a lucky number. "6“
是个吉利数字。
②"A" is a letter.
“A"是个字母。
②Twenty-four hours is a long period of time.
24小时已经是很长一段时间了。
七、特殊情况下视为整体的用法
有些名词虽然是复数，但是将其视为整体时，谓语动词也用第三人称单数形式。
①Twenty million dollars is not enough for us.
两千万美元对我们来说还不够。
第三人称单数动词
一般情况 +s
run-runs get-gets
以s、x、ch、sh和o结尾 +es
pass-passes;fix-fixes;watch-watches;
teach-teacheswash-washes;go-goes;do-does
以辅音字母+y结尾变y为i +es
study-studies；fly-flies
特殊情况 不规则
have-has
第三人称单数动词变化规则：
规则变化 play
ask
find
think
like
wash
teach
study
do
go
不规则变化 have
动词的
第三人称单数形式
plays
asks
finds
teaches
thinks
washes
likes
studies
goes
does
has
I ______ pears very much.
2. They_______ their school.
3. Helen ______ vegetables.
4. Jack and Cindy ______ bread.
5. She ______hamburgers with chicken.
6. My pet dog_______ meat.
7.Bob’s brother ______carrots.
用 like 或 likes填空。
like
like
likes
likes
likes
like
likes
I _______ three friends in England.
2. They_______ a big room.
3. Helen ______ two cats.
4. Jack and Cindy _______ a son.
5.Your friend______ a big apple.
6. Your friends _______ some apples.
7.Bob’s brother _______a nice watch.
have
have
has
have
has
have
用 have 或 has 填空。
has
助动词：
1. 助动词有哪些？
2. 助动词有什么用？
do does
在有实意动词的句子中，
帮助构成疑问句
和否定句
:助动词do/does提前
: do not /does not
三单用 does ，其他人称都用 do
I have a baseball.
(否定句) I ______ have a baseball.
(一般疑问句) ____ you ______ a baseball
(肯定回答) Yes, I _____.
(否定回答) No, I ______.
don’t
don’t
have
Do
do
doesn’t
doesn’t
have
does
have
Does
She has a baseball. (否定句) She _____ ____ a baseball. (一般疑问句) ____ she _____ a baseball (肯定回答) Yes, she ______. (否定回答) No, she ______.
They eat bread.
Helen eats chicken.
My father plays soccer.
I want to watch TV.
She wants to have lunch.
Eric goes to school.
We think about food.
Paul helps his classmates.
改为否定句、一般疑问句并作回答
Thanks !