I am a teacher.
I am not a student. 否定句
Are you a teacher? 一般疑问句
判断下面句子变否定和一般疑问句的正(T)误(F) 1.She is a teacher. T She isn't a teacher. T Is she a teacher? 2.They like bananas. don't F They aren't like bananas. T Do they like bananas? 3.She has a nice sweater. have nice sweater. F She doesn't has aanice sweater. T Does she have a nice sweater? 4.She can play the piano. T She can't play the paino. T Can she play the piano?
一 否定： be+not 般 含be动词 现 一般疑问： be提前 在 时 can+not (can't) 否定： 的 否 含情态动词can 定 一般疑问：Can提前 句 非单三：don't+V原 及 一 否定 单三：doesn't+V原 般 疑 含实义动词 非单三：Do +主语+V原 问 一般疑问 单三：Does+主语+V原 句
I/we ——you my/our——your
I am a teacher.(变一般疑问句)
Are you a teacher?
This is my sisiter.（变一般疑问句）
Is this your sister?
易错点二： 肯定句用some，否定及疑问句用any There are some students in the classroom.(变否定 和疑问） There aren't any students in the classroom.
Are there any students in the classroom？
He has some soccer balls.(变否定和疑问） He doesn't have any soccer balls. Does he have any soccer balls?
IIdon't do my homework after school. don't my homework after school. Do you do your homework after school? Do you your homework after school?
I do my homework after school.(变否定及一般疑问）
注意:当do 翻译为做、干的时候，为实义动词，必 须借助于助动词do 或 does。变否定直接加don't 或 doesn't，变一般疑问时在前面加Do或Does Her mother does sports every morning.(变否定及疑问) Her mother doesn't do sports every morning. Does her mother do sports every morning?
易错点四： 当think，believe等词引导的宾语从句变否 定时，要使用否定转移，将主句变为否定。
I think Beijing Opera is interesting.(变为否定）
I don't think Beijing Opera is interesting. He thinks ice cream is healthy.(变为否定）
He doesn't think ice cream is healthy.
1. I am twelve years old.
2. He plays basketball every day.
He doesn't play basketball every day. Does he play basketball every day?
I am not twelve years old. Are you twelve years old?
3. The apples are in the drawer.
The apples aren't in the drawer. Are the apples in the drawer?
4. My friends want to go to a movie.
My friends don't want to go to amovie. Do your friends want to go to amovie?
5. My sister gets up at seven .
My sister doesn't get up at seven.
Does your sister get up at seven?
My father doesn't do any
housework on weekends.
6. My father does some housework on weekends.
Does your father do any housework on weekends?
7. I can speak English.
I can't speak English.
Can you speak English?
8. I think she can draw.(变否定）
I don't think she can draw.
Make a summary
don't +V原 主语（单三） doesn't +V原
Do+主语+V原 主语（单三） Does+主语+V原
Make a summary
1.变一般疑问时通常将I/we ——you , my/our——your 2.表一些时肯定句用some，否定及疑问句用any
3.当do 翻译为做、干的时候为实义动词，必须 借助于助动词do 或 does。变否定直接加don't 或doesn't，变一般疑问时在前面加Do或Does。 4.当think，believe等词引导的宾语从句变否定 时，要使用否定转移，将主句变为否定。
Please do the exercises on your paper.