Lesson 3 A computer has a keyboard
一，含有实意动词have/has 的句型转换
肯变否：
1,实意动词have/has 前+don’t 或doesn’t
2,do/does 后动词还原
肯变疑：
1，句首+Do/Does
2, do/does 后动词还原
知识点拓展
动词变单三规则
1，一般在词尾直接＋s，eg:likes
2 ，以字母s,x,ch,sh结尾的单词+es,
eg: does,catches
3,以辅音字母+y结尾的动词，先变y为i，再+es，eg: fly-flies
二，固定词组搭配：
look like: 看起来像
Let me catch it! 让我们抓住它.
Let 后跟动词原形
三，阅读要点：
play with somebody/something: 和某人或某物一起玩
Have a guess. 猜一下
He has no legs. 对名词否定用no.
write letters: 写信
I see. 我明白了
You are right. 你是对的。
单词及词组
TV n.电视机
every每一个
tall adj.高的
ear n.耳朵
eye n.眼睛
mouth n.嘴巴
hand n.手
write v.写
email n.邮件
keyboard n.键盘
mouse n.鼠标，老鼠
every day 每天
play with sb. 和…一起玩
have a guess猜一猜
write letters写信
重点句子
A computer has a keyboard.
Does a TV have a mouse?
No, it doesn’t.
Does a TV have a screen?
Yes, it does.
Does he/she ……..?
Yes, he/she does. No, he/she doesn’t.
Is he/she ……..?
Yes, he/she is. No, he/she isn’t.