初中英语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 br ight enough in the room for his mother to be operated on.It was so dark 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 brother 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 study 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 st art right now.3. and连接的并列句有时可转换为so ...that句型。
如:Mr. 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 B eijing.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 sooner 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 completedI didn’t begin work until he had gone.→Not until he had gone did I begin work.2. only +状语或状语从句前移当only +状语或状语从句移至句首时,主句的主谓要进行部分倒装。
如:A child understands his parents’intentions only when he grows up.→Only when he grows up does a child understand his parents’intentions.I’ll only come if you promise me that you won’t invite Mary.→Only if you promise me that you won’t invite Mary will I come.3.副词或介词短语前移有时副词或介词短语前移至句首时,主谓要进行倒装。
因为这种倒装句要把谓语动词完全移至主语前,所以称之为完全倒装句。
如:The teacher came in and the class began.→In came the teacher and the class began.The hunters hurried away.→Away hurried the hunter.(注意:主语是人称代词时不倒装)A rice field was behind the farmhouse.→Behind the farmhouse was a rice field.A beautiful lake lies at the foot of the hill.→At the foot of the hill lies a beautiful lake.4.让步状语从句转换为倒装句although从句或even if从句转换为as引导的让步状语从句时,需用倒装语序。
如:Although Tom was intelligent, he still studied hardest in his class.→Intelligent as Tom was, he still studied hardest in his class.Although Mary was a child, she knew several foreign languages.→Child as Mary was, she knew several foreign languages. (注意:此种情况下单数可数名词前的冠词常常省略)Even if you will try, you cannot manage it.→Try as you will, you cannot manage it.5.虚拟条件句省略if后转换为倒装句If it weren’t for their support, we would be in a difficult situation.→Were it not for th eir support, we would be in a difficult situation.If I had taken your advice, I wouldn’t have made such a mistake.→Had I taken your advice, I wouldn’t have made such a mistake.If the teacher should know it, he would be angry.→Should the teacher know it, he would be angry.If he were to come tomorrow, I would speak to him about it.→Were he to come tomorrow, I would speak to him about it.6. so / such ... that句型转换成倒装句so / such ... that句型中,so / such移至句首加强语气时,主句的主谓要倒装。