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:cannot3、 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._________________________________________________4.I put a book on my head._________________________________________________5. They sing “In the classroom”together._________________________________________________6.We play bas...