句型转换是中学英语基础训练的典型题型，也是中考必考的重点题型之一。在历年的中考中，句型转换题所占的分值一直挺大，而且有愈来愈高之势。这是因为这种题型可以有效地帮助学生理解并巩固所学的句型，掌握各种句型的内在含义，帮助学生掌握各种句型的句式结构和不同句式的变化技巧，理解并掌握句型与句型间的相互转换规律。学生如能掌握句型转换的解题技巧，对于他们理解并运用所学句型，形成语感，进而培养他们的英语综合运用能力有着极其重要的意义。在日常英语教学中，每位英语教师都十分重视对学生句型转换解题技巧的培养，因为他们深知：只要学生掌握了句型转换的本质含义和解题技巧，不仅能熟练地运用各种句式和句型进行口头表达，还能够熟练地做句型转换题，把所学的句型和句式举一反三，灵活运用，这样就把口头运用转换成了笔头运用，从而培养了学生的综合语言运用能力。
笔者在十余年从事一线英语教学的过程中，摸索出了一些句型转换题的解题技巧，现结合句型转换的常见题型作如下归纳。
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) He's 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 school next week ?
(5) A new modern bridge is being built over the Changjiang River .
→ Is a new modern bridge being built over the Changjiang River ?
2、句子的谓语动词中如果有情态动词，则把情态动词直接提到主语之前。
eg. (1) They can park their cars in front of the supermarket .
→ Can they park their cars in front of the supermarket ?
(2) I'd like some more dumplings .
→ Would you like some more dumplings ?
(3) Children must be kept away from fire .
→ Must children be kept away from fire ?
3、句子的谓语动词如果是现在完成时或过去完成时，则把时态中的助动词have、has或had
提到主语之前即可。
eg. (1) I have finished reading the interesting book .
→Have you finished reading the interesting book ?
(2) The old woman had been dead before her dauther arrived .
→ Had the old woman been dead before her dauther arrived ?
4、句子的谓语动词如果是行为动词的一般现在时或一般过去时，在改为一般疑问句的时候，根据主语的人称和单、复数，需要添加助动词do、does或did 。
eg.(1) We enjoy the football matches very much .
→ Do you enjoy the football matches very much ?
(2) Her mother does some cleaning every morning .
→Does her mother do some cleaning every morning ?
(3)She went to see her doctor yesterday .
→Did she go to see her doctor yesterday ?
注：在添加了助动词的一般疑问句中，行为动词一律为动词原形。
中财网