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定语从句的转换

定语从句可以转换为形容词(短语)、非谓语动词(短语)、介词短语等形式。

(1)非限制性定语从句转化为两个简单句、并列句、独立主格或 同位语形式。

I found many flowers in the garden, most of which were red.

① I found many flowers in the garden; most of them were red.(两个简单句)

② I found many flowers in the garden. Most of them were red.(两个简单句)

③ I found many flowers in the garden, and most of them were red.(并列句)

④ I found many flowers in the garden and most of them were red.(并列句)

⑤ I found many flowers in the garden, most of them red.(独立主格)我在花园里看到了很多花儿，大部分都是红色的。

We finally reached London, which was the end of our journey.→ We finally reached London, the end of our journey.(同位语)

我们抵达了伦敦——我们行程的终点。

(2)限制性定语从句可以转化成含有形容词、非谓语动词或介词的短语。

1)在定语从句中，如果谓语动词是主动语态，就用现在分词短语替换;如果是被动语态，可用过去分词替换;如果是单个动词要放在中心词之前，动词短语要后置。

① The girl who is crying is my sister.→ The crying girl is my sister.

正在哭泣的女孩是我的妹妹。

② The girl who is crying behind the tree is my sister.→ The girl crying behind the tree is my sister.

在树后哭泣的女孩是我的妹妹。

③ This is a story which was written by Charles Dickens.→ This is a story written by Charles Dickens.

这是由查尔斯•狄更斯创作 的一个故事。

④ The man who owns that car will be fined for illegal parking.→ The man owning that car will be fined for illegal parking.

那辆车的车主将会因为违章停车而被罚款。

2)在定语从句中，如果含有情态动词或先行词前有序数词first, last, next等，可以将其转化为含有不定式作定语的简单句。

① You need someone who can look after you.→ You need someone to look after you.

你需要有人来照顾。

② Mary was the first student who arrived at the square.→ Mary was the first student to arrive at the square.

玛丽是最先到达广场的学生。

3)在定语从句中，如果谓语动词含有be的形式，表语是介词短语、形容词(短语)，在不影响理解的前提下，可以转化成上述短语作定语的简单句。

① The girl who is behind the tree is my sister.→ The girl behind the tree is my sister.

树后面的那个女孩是我的妹妹。

② Soldiers must be people who are not afraid of death.→ Soldiers must be people not afraid of death.

军人必须是不畏牺牲的人。