一般疑问句和否定句的变法.pptVIP

一般疑问句和否定句的变法 --------闫彩虹 教学目标：1.学习一般疑问句和否定句的 变化规则。 重 难 点：1.在一般疑问句中人称的变化。 2.some在一般疑问句和否定句的 变化。 一、把be动词（am is are）和情态动词 (can,?may, must...)放到句首， 其它照写。遇I/we—you, my—your. some—any. 句号变成问号（？） 例如：陈述句: They?are?in?the?park. He?can?play the guitar. 一般疑问句: Are?they?in?the?park? ? Can?he?play the guitar? （一）一般疑问句 把下列句子变成一般疑问句 2.?Mike is a student. 3.Sarah can clean the classroom. 4.I am in the zoo. 5.There are some flowers in the vase. 6.This is my sister. 7.We are sweeping the floor. 二、借助助动词do/does,第三人称单数用 does,其余人称用do，放到句首，其他照写 特别记住：前面用does,后面的动词一定还 原成原形。遇I/we—you, my—your, some—any. 句号变成问号（？） 例如：陈述句: I like the ducks. He likes the dogs. 一般疑问句：Do you like the ducks? Does he like the dogs? 把下列句子改为一般疑问句。 We need some masks. They like making the puppet. Su Hai and Su Yang live in a new house. 4.I put a book on my head. 6.We play basketball on Sundays. 7. Tom likes listening to music （二）否定句 一、在be动词（am is are）和情态动词 (can,?may, must...)后面加not，其它照写。 some变成any. 例如：陈述句: They?are?in?the?park. He?can?play the guitar.. 否定句: They are not in?the?park. ? ? He can? not play the guitar. 或： They?aren’t?in?the?park. He?can’t?play the guitar. am not 不能缩写 is not=isn’t are not=aren’t can not=can’t 把下列句子变成否定句 1.? I am listening to music. 2.? Mike is a student. 3.? Sarah can clean the classroom. 4.? They are in the zoo. 5. There are some flowers in the park. 6.This is my sister. 7.We are sweeping the floor. 二、借助动词don’t/doesn’t,第三人称单数用 doesn’t,其余人称用don’t，放到人称后面， 动词前面其他照写。 特别记住：前面用doesn’t,后面的动词一定 还原成原形。Some变成any. 例如：陈述句: I like the ducks. He likes the dogs. 否定句：