学习好资料欢迎下载小学英语所有句型转换的方法基本助动词只有三个:be, do, have, 他们没有词汇意义,只有语法作用, 如协助构成进行体,完成体,被动态,否定句,疑问句等。一、 肯定句改否定句的方法——一步法1、 在 be 动词后加 not。如: is not , are not , am not, was not, were not;2、 在 can,等后加 not。如: cannot 3、 上述都没有的,在动词前加助动词否定形式do not, does not. (don’t/doesn’t) 4、 some 改成 any。二、 肯定句改一般疑问句的方法——三步法1、 把 be 动词放在句首,剩下的照抄,(some 改成 any,my 改成 your 等)句点改成问号。2、 把 can,等放到句首,剩下的照抄,(some 改成 any,my 改成 your 等)句点改成问号。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? 把下列句子变成一般疑问句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 vase. ________________________________________ 6. This is my sister. _________________________________________ 7. We are sweeping the floor. __________________________________________ 3、 上述都没有的,在句首请助动词Do/Does 帮忙,剩下的照抄, (some 改成 any, my 改成 your 等)句点改成问号。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。1.We need some masks. _________________________________ 2.They like making the puppet. _________________________________ 3. Su Hai and Su Yang live in a new house. _________________________________________________ 学习好资料欢迎下载4. I put a book on my head. _________________________________________________ 5. They sing...