一．改否定句
1.一般句子中有be动词和can的，改否定句只需要在be动词和can后面加not。

另还需注意陈述句中的some 改any，and 改or (代表人的不变)，also 和too 改either（放句末）如：I’m good at dancing and swimming.——I’m not good at dancing or swimming.
He can write some English words. ——He can’t write any English words.
He is also good at running.——He isn’t good at running either.
2.如句子中有动词的，如have, has, like, likes, teach, work, write等时，需用助动词do 或does 帮忙完成否定形式。

复数及I, you 用don’t +动原, 第三人称单数用doesn’t+动原。

如：I have some sweets. ——I don’t have any sweets.
He also likes watching films. ——He doesn’t like watching films either.
My friend teaches English and PE. ——My friend doesn’t teach English or PE.
二．改一般疑问句（第一人称要改为第二人称,I – you, we- you, my-your, our-your）
1.一般句子中有be动词和can的，改一般疑问句句只需要在be动词和can放首位。

另还需
注意陈述句中的some 改any，and 改or (代表人的不变),
We are good at running and jumping. ——Are you good at running or jumping?
My father can drive a bus . ——Can your father drive a bus.
2. 如句子中有动词的，如have, has, like, likes, teach, work, write等时，需把助动词do 或does 放句首。

复数及I, you 用do +动原, 第三人称单数用does+动原。

如：Su Yang and Su Hai have some sweets. ——Do Su Yang and Su Hai have any sweets?
He likes watching films. ——Does he like watching films.
My friend teaches English and PE. ——Does your friend teach English or PE?
一．改否定句
1.一般句子中有be动词和can的，改否定句只需要在be动词和can后面加not。

另还需注意陈述句中的some 改any，and 改or (代表人的不变)，also 和too 改either（放句末）如：I’m good at dancing and swimming.——I’m not good at dancing or swimming.
He can write some English words. ——He can’t write any English words.
He is also good at running.——He isn’t good at running either.
2.如句子中有动词的，如have, has, like, likes, teach, work, write等时，需用助动词do 或does 帮忙完成否定形式。

复数及I, you 用don’t +动原, 第三人称单数用doesn’t+动原。

如：I have some sweets. ——I don’t have any sweets.
He also likes watching films. ——He doesn’t like watching films either.
My friend teaches English and PE. ——My friend doesn’t teach English or PE.
二．改一般疑问句（第一人称要改为第二人称,I – you, we- you, my-your, our-your）
1.一般句子中有be动词和can的，改一般疑问句句只需要在be动词和can放首位。

另还需
注意陈述句中的some 改any，and 改or (代表人的不变),
We are good at running and jumping. ——Are you good at running or jumping?
My father can drive a bus . ——Can your father drive a bus.
2. 如句子中有动词的，如have, has, like, likes, teach, work, write等时，需把助动词do 或does 放句首。

复数及I, you 用do +动原, 第三人称单数用does+动原。

如：Su Yang and Su Hai have some sweets. ——Do Su Yang and Su Hai have any sweets?
He likes watching films. ——Does he like watching films.
My friend teaches English and PE. ——Does your friend teach English or PE?。