我們在英語寫作中經(jīng)常要用到狀語從句，狀語從句是指句子用作狀語時，起副詞作用的句子。狀語從句中的從句可以修飾謂語、非謂語動詞、定語、狀語或整個句子。對于一個初學(xué)寫作的人來說，學(xué)會簡化狀語從句，會使整篇文章顯得條理很清楚，今天小編給大家?guī)碓鯓雍喕癄钫Z從句。

　　1.以after和before引導(dǎo)的狀語從句的主語若與主句主語一致時，可用after和before與從句謂語動詞的動名詞(短語)形式構(gòu)成介詞短語作狀語。

　　例如：

　　after she sang，she left the rich man's house.(簡化前)

　　after singing，she left the richman's house.(簡化后)

　　2.以as soon as引導(dǎo)的狀語從句的主語若與主句主語一致時，可用on十v-ing形式簡化狀語從句，此時的動詞為非延續(xù)性動詞。例如：

　　dr.bethune began to operateon the wounded soldiers as soon as he arived at the village.(簡化前)

　　dr.bethune began to operateon the wounded soldiers on arriving at the village.(簡化后)

　　3.時間狀語從句和條件狀語從句的主語和主句主語一致時，有時可簡化為不定式作狀語。例如：

　　she stopped when she saw her husband.(簡化前)

　　she stopped to see her husband.(簡化后)

　　if you want to understand the farmers，you must go to the countryside.(簡化前)

　　to understand the farmers，you must go to the country side.(簡化后)

　　4.結(jié)果狀語從句和目的狀語從句的主語與主句主語一致時，可以簡化為不定式作狀語;若兩者主語不一致時，則應(yīng)簡化為不定式的復(fù)合結(jié)構(gòu)作狀語。例如：

　　he was so tied that he couldn't go any further.(簡化前)

　　he was too tied to go any further.(簡化后)

　　i came here so that i could ask some questions.(簡化前)

　　i came here(in order) to ask some questions.(簡化后)

　　5.以when，while引導(dǎo)的時間狀語從句和以if引導(dǎo)的條件狀語從句，如果從句主語和主句主語一致時，可簡化為現(xiàn)在分詞狀語，表示謂語動作發(fā)生在該狀語動作的進行過程之中。

　　例如：

　　when he turned on the radio，he found it broken.(簡化前)

　　when turning on the radio，he found it broken.(簡化后)

　　while she was walking along the street，she was hit by a car.(簡化前)

　　while walking along the street，she was hit by acar.(簡化后)

　　6.原因狀語從句的主語與主句主語一致時，可簡化為分詞短語作狀語。例如：

　　since l didn't know chinese，i tried to speak to her in english.(簡化前)

　　not knowing chinese，i tried to speak to her in english.(簡化后)

　　要注意的是，形容詞短語也可用作表示原因的狀語，用以代替原因狀語從句，放在句首、句末均可，但一般應(yīng)加逗號。例如：

　　as he was thirsty and eager to get a little rest，he went into the tea-house.(簡化前)

　　thirsty and eager to get a little rest，he went into the tea-house.(簡化后)

　　7.在時間、原因、條件等狀語從句中，若從句和主句主語不一致時，可簡化為分詞復(fù)合結(jié)構(gòu)作狀語。有時也可簡化為“with/without名詞或代詞十分詞(短語)”形式作狀語。例如：

　　when the film start appeared, the children got exited.(簡化前)

　　the film start appearing，the children got exited.(簡化后)

　　if all the work is done, you can have a rest.(簡化前)

　　with all the work done，you can have a rest.(簡化后)