句型转换方法总结

句型转换方法总结

英语中,为了避免语句单一化，我们常常可以用不同的句型表达相同的含义。把一种结构的句子改为另一种结构来表达同样的意思,我们称之为句型转换。适当了解句型转换的方式可以丰富我们的语言表达能力，从而使语言更精确、更生动。

一、复合句转换成简单句

1. so ... that 句型中，当that从句是肯定形式时，可以转换成enough ... to 句型；当that从句是否定形式时，可以转换成too ... to 句型。当主句与从句的主语不一致时，可以由介词for引出不定式所表示动作的执行者或承受者。如：

He was so old that he could go to school by himself.

→He was old enough to go to school by himself.

It was so bright in the room that his mother could be operated on.

→It was bright enough in the room for his mother to be operated on.

It was so da rk that he couldn’t see the faces of his companions.

→It was too dark for him to see the faces of his companions.

2. in order that引导的目的状语从句可以转换成in order (not) to结构；so that 引导的目的状语从句可以转换成so as (not) to结构。当主句与从句的主语不一致时，in order (not) to或so as (not) to后接不定式的被动式。如：

They set out early in order that they could arrive at the station in time.

→They set out early in order to arrive at the station in time.

I did this so that I might have a couple of weeks to prepare my report.

→I did this so as to have a couple of weeks to prepare my report.

Speak clearly so that they may understand you.

→Speak clearly so as to be understood by them.

3. if引导的条件状语从句有时可转换为in case of短语。如：

If there’s fire, ring the bell.

→In case of fire, ring the bell.

If I’m not there, ask my bro ther to help you.

→In case of my not being there, ask my brother to help you.

二、并列句转换成复合句

1. 祈使句+and+陈述句转换成if / so long as引导的条件状语从句+主句。如：Study harder, and you can get full marks for English.

→You can get full marks for English if / so long as you stud y harder.

2. 祈使句+or+陈述句转换成if ... not或unless引导的条件状语从句+主句。如：Start right now, or you’ll be late for class.

→If you don’t start right now, you’ll be late for class.

→You’ll be late for class unless you start right now.

3. and 连接的并列句有时可转换为so ...that句型。如：

M r. Johnson was tired and he couldn’t move any further.

→Mr. Johnson was so tired that he couldn’t move any further.

4. or连接的并列句有时可转换为if ... not 或unless引导的条件状语从句+主句。如：

I must go now or I shall be late for the birthday party.

→If I don’t go now, I shall be late for the birthday party.

→I shall be late for the birthday party unless I go now.

三、正常语序转换为倒装语序

1. 否定副词前移

当否定副词移至句首时，句子的主谓要进行部分倒装。如：

Mr. Williams has never been to Beijing.

→Never has Mr. Williams been to Beijing.

Mr. Brown seldom went to visit the Science Museum.

→Seldom did Mr. Brown go to visit the Science Museum.

He had hardly left the office when the telephone rang.

→Hardly had he left the office when the telephone rang.

Mr. Black had no sooner set out than a thunderstorm broke.

→No soon er had Mr. Black set out than a thunderstorm broke.

Corn planting in some areas was not completed until mid-June.

→Not until mid-June was corn planting in some areas completed

I didn’t begin work until he had gone.

→Not until he had gone did I begin work.