中考英语句型转换解题技巧

中考英语句型转换解题技巧句型转换是中学英语基础训练的典型题型，也是七年级的重点题型之一。句型转换题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。在历年的中考中，对话题所占的分值一直挺大，而且有愈来愈高之势，能行而有效的为中考对话题打下坚实的基础。

Ⅰ.题型介绍

所谓“句型转换”就是先给一个完整的句子A，再根据括号内的要求（有时没有明确，须自己观察），在第二个句子B的空白处填上适当的词来完成的句型转换。

Ⅱ.题型分类

从形式上看，有如下几种形式：①某一词或词组的转换；②词组与句子的转换；③同义句型的转换；④为纠正常犯语言错误而设计的题目。

从内容上看，此题型涉及的面较广，主要有：①句子功能方面的转换。包括陈述句（肯定与否定）、四种题疑问句、祈使句、感叹句的转换；②句子结构方面的转换。即简单句、复合句、并列句之间的转换；③语态的转换。即主动语态与被动语态之间的转换；④常用句型与词汇手段的转换。

Ⅲ.具体分类如下

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句子变为疑问语序，也称之为倒装语序。

解题时应把握以下几点：

A. be动词、情态动词、助动词直接提前

B. 有实义动词v时，请助动词do/does

(请助动词三步口诀：看人称、请助动词、动词还原形)

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 daughter arrived .

→ Had the old woman been dead before her daughter 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。二、由肯定句变为否定句

由肯定句变为否定句的规则是在句中的助动词之后添加否定词not。

1、be动词、情态动词、助动词直接+not

(除了be动词的am词形外，否定词not可以和助动词缩写为“助动词+ n't”。)

2、有实义动词v时，请助动词do/does+not

(请助动词三步口诀：看人称、请助动词、动词还原形)分别可以缩写为don't、doesn't和didn't 。

注：在行为动词一般现在时和一般过去时的否定句中，行为动词也一律为动词原形。

eg. (1) He is from England .

→He isn't from England .

(2) They can look for things on the Internet in Computer lessons .

→They can't look for things on the Internet in Computer lessons .

(3) I have seen the interesting film already .

→I haven't seen the interesting film yet .

(4) His brother often plays football after school .

→His brother doesn't often play football after school .

(5) My grandma came for dinner yesterday evening .

→My grandma didn't come for dinner yesterday evening .

下面几种句型在变为否定句时情况特殊一些，做题时须引起注意：(1) I think + 宾语从句。

该句型在变为否定句时，否定词not应放在主句上，

即为：I don't think + 宾语从句。

eg. I think it will rain tomorrow .

→ I don't think it will rain tomorrow .

(2) 祈使句

祈使句的特征是没有主语，以动词原形开头。

祈使句在变为否定句时，应在动词原形之前添加助动词don't .

eg. (1) Water the flowers .

→ Don't water the flowers .

(2) Please clean the blackboard .

→ Please don't clean the blackboard .

三、句子的单复数互换

句子的单复数转换的规则是：对应句中的名词、代词、动词等，能变则变，不能变的，要么保留，要么去掉。

在解题过程中，还必须具体情况具体对待。

eg. (1) The girl is from England .

→ The girls are from England .

(2) He is a polite and helpful boy .

→ They are polite and helpful boys .

上述例句中，划线的为能变的，没划线的为该保留的，a(an)为该去掉的。反之，在由复数变为单数时，则要根据句意在名词之前补上一个a