英语句型转换的解题技巧一、 由肯定句变为一般疑问句 由肯定句变为一般疑问句的规则是把助动词置于句子的主语之前而把句子变为疑问语序。解题时应把握以下几点：1、 句子的谓语动词如果是be动词，则把be动词直接提到主语之前。 （注：在肯定句和一般疑问句中主语的一、二人称要互换。） eg. (1) We are in Class 1, Grade 7 . Are you in Class 1, Grade 7 ? (2) Hes polite and helpful . Is he polite and helpful ? (3) There are some birds in the big tall tree . Are there any birds in the big tall tree ? (4) Some Americans are going to visit our school next week . Are some Americans going to visit your scho
