初中英语句型转换的解题方法.docx

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初中英语句型转换的解题方法

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 Class1, Grade7、→ Are you in Class1,Grade7 ? (2)

Hes polite and helpful、→ Is he polite andhelpful ? (3)

There are some birds in the big tall tree、→ Arethere any birds in the big tall tree ? (4)

Some Americans are going to visit our school nextweek、→ Are some Americans going to visit your schoolnext week ? (5)

A new modern bridge is being built over theChangjiang River、→ Is a new modern bridge being builtover 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、→

the supermarket ?

Can they park

(2)

their

cars in front of

Id like some more dumplings、→ Would you like somemore dumplings ? (3)

Children must be kept away from fire、→ Mustchildren 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 youenjoy the football matches very much ? (2)

Her mother does some cleaning every morning、→Doesher mother do some cleaning every morning ? (3)She wentto see her doctor yesterday、→Did she go to see herdoctor 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。如果句中的谓语动词的情况和上述

1、2、3点相同，则直接在be动词、情态动词和have、has或had之后添加否定词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+ nt”。而如果句中的谓语动词是行为动词的一般现在时或一般过去时，则要先添加助动词do、does或did，再在其后添加否定词not，分别可以缩写为

dont、doesnt和didnt 。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 isnt from England 、(2)

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