Unit 4 I have a pen pal.
第四课时1
B Let’s learn
What’s your hobby ? 你的爱好是什么？
I like …. 我喜欢…..。
diving
making kites
playing the violin
riding a bike
collecting stamps
我喜欢骑自行车。
他喜欢骑自行车。
I like riding a bike.
He likes riding a bike.
翻译：
I like riding a bike.
He likes riding a bike.
比较：
动词原形
动词第三人称单数形式
live—lives（居住，住）
teach—teaches（教）
go—goes（去）
watch—watches（看）
read—reads ( 读，看)
常见的三人称单数形式的变化
观察并总结：
1.I like collecting stamps.
2.He likes collecting stamps.
3.Chen Dongshen likes collecting stamps.
4.My pen pal likes collecting stamps.
什么时候用动词三单形式？
句子主语是第三人称单数，动词用第三人称单数形式。
Mr. Black
Beijing
lives in Beijing
teaches English
goes to work
goes to work by bus
watches TV at night
reads newspapers every day
I teach English.
—Does he teach English ?
— No, he doesn’t.
He teaches Math.
Mr. Chen
Does he teach Math ?
Yes , he does .
Does he teach English ?
No ,he doesn’t .
变为一般疑问句，借用助动词does.
借用does之后动词还原为原形。
仿照例子写句子：
例子: teach English
→He teaches English.
→ Does he teach English?
→ Yes, he does.
→ No, he doesn’t.
go to work by bus
watch TV
3. read newspapers everyday
4. go to work at 10
总结:

Does＋ 主语＋ 动词原形＋其他？

肯定回答：Yes, he／ she does.
否定回答：No, he ／she doesn’t.
read –
look –
work –
say –
run –
go –
do –
watch –
teach –
have –
一般现在时动词第三人称单数的变化规则
1. 一般情况下，动词后直接加s.
Eg：works, gets, reads等.
2. 以s，x，ch，sh或o结尾的动词，在后面加es
Eg：goes, teaches, watches等。
动词have遇在主语是第三人称单数时，have改为has，如：He has an interesting book .

写出下列动词的第 三 人称单数形式
reads
looks
works
says
runs
goes
does
watches
teaches
has
Let's talk
My mother is a teacher.

Does she teach English?

No, she doesn’ t . She teaches math.

Does she teach you math?

Yes, she does.
Zhang:
Sarah:
Zhang:
Sarah:
Zhang:
Homework
1、读练习册目标点击部分。

2、练习册47-48，Ⅱ，Ⅲ，Ⅳ。