情态动词can
can 在英语中有一个特殊的名字,叫做情态动词，表示“能够”, “会”, “能力”后面要跟着表示动作的动词。

没有时态和人称的变化。

表示不能做什么的时候,后面加上not为can not,或者缩写为can’t。

问别人“能…吗？”要把can 放在句子前面,首字母要大写,句尾别忘加上问号。

例句：—I can swing .I can draw.
—She can jump. He can play .
—We can touch .They can run.
—I can’t sing. You can’t see.
—She can’t dance. He can’t hear a car.
—We can’t hear an aeroplane.
—Can you hear a dog？Can he hear a bus？
—Can Lucy write？Can you do it?
句子基本是：简单陈述句，由简单陈述句转变成肯定句，否定句，疑问句。

疑问句是用来提出问题。

英语中有四种疑问句: 一般疑问句、特殊疑问句、选择疑问句和反意疑问句。

我们现在已经接触到了前两种疑问句。

后两种疑问句以后我们还会学到.
一.一般疑问句：
英语中要用yes和no 来回答的疑问句叫一般疑问句。

如:
1）Is it hot ?Yes, it is .\No, it isn’t. ——be动词引导2）Is it a car ?Yes, it is .\No, it isn’t . ——be动词引导3）Is this your ruler ?Yes, it is .\No, it isn’t . ——be动词引导4）Do you like bananas ?——含实义动词Yes, I like bananas. \ No, I don’t like bananas.
5）Can Ming hear a drill ?——含情态动词Yes , Ming can hear a drill.\No,Ming can’t hear a drill.
二．陈述句（肯定句，否定句，一般疑问句）的转变规律：
1．肯定句：2．否定句： 3. 一般疑问句及肯否定回答1) 主语+be动词+…. 1) 主语+be动词+not+…. 1）be动词+主语+…
Yes, 主语+be动词.
No, 主语+be动词+not.
I am a teacher. I am not a teacher. Are you a teacher？
-Yes, I am./ No, I am not. My mother is thin. My mother is not/isn’t thin. Is your mother thin?
--Yes, she is./ No, she isn’t.
They are insects. They are not are/aren’t insects. Are they insects？
--Yes，they are./ No, they are n’t.
2)主语+情态动词can+…2) 主语+情态动词can+not+….2）情态动词can+主语+…？
Yes, 主语+情态动词can/
No,主语+情态动词can+ not
He can jump. He can not/can’t jump. Can he jump？
--Yes, he can./ No, he ca n’t.
3) 主语+动词+….3) 主语+助动词do/does+not 3）助动词do/does+
主语
+…. 动词原形+….动词原
形？
Yes, 主语+助
动词do/does.
No, 主语+助动
词do/does+not.
He likes to eat apples. He doesn’t like to eat apples. Does he like to eat apples？
Yes，he does./ No，h e doesn’t.
We like to eat apples. We don’t like to eat apples. Do you like to eat apples？
Yes，we do. /No，we don’t.
二. 祈使句：表示请求、命令、建议或劝告等的句子叫祈使句，主语you常省略。

1、肯定形式：一般以动词原形开头。

Open the door, please.
2、否定形式：在句首谓语动词前加Don't。

Don't be late for class.
三特殊疑问句（又叫wh-question）
用特殊疑问词来提出问题的疑问句叫作特殊疑问句。

特殊疑问词一般要放在句首。

常用的疑问词有what who ，which how 等这些词都以wh 开头（包括how）所以也叫作wh-question。

特殊疑问句要求回答具体内容。

不能用yes或n o回答。

结构：疑问词+一般疑问句。

回答不能用yes / no(或相当于yes / no)回答的问句。

答句的句式同肯定句句式：如：
What can you see ?I can see a cat.
What can you hear ?I can hear a bus.
What can you do ?I can sing and dance.
What is it ?It’s a panda.
What do you like ?I like playing football
How old are you ?I’m ten.
一．将下面各组词组成句子
1.________________________（an, aeroplane, hear, Lucy, can ）
2. ____________________________ (not, he, dance, can )
3. ____________________________? (you, can, see, what )
4.____________________________(can ,see ,not ,we ,you)
5. _____________________________. (I, can, help, you )
6. _____________________________? (I, can, do, what)
7. ____________________________? (you ,can ,hear me)
8. _____________________________? ( you ,can ,dance)
二.将下列句子变成一般疑问句
1 Mr Wang is thirsty__________________________?
2.The elephent’s ears are long__________________________?
3. We like birds_________________________?
4.Hello.You are his mother__________________________?
5.I can sing and dance.___________________________?
三将下列每组词各组成一句特殊疑问句
1. ( you are how). _________________________?.
2. ( old how Ben is)_________________________?
3.（colour is what your shirt_________________________?
4. (can see what the on you desk ) ________________________?
5. (like what do you)_________________________?。