限定性定语从句和非限定性定语从句课件.ppt

限定性定语从句与非限定性定语从句 ;非限制性定语从句转化为两个简单句、并列句或同位语形式。例如： I found many flowers in the garden, most of which were red → ①I found many flowers in the garden; Most of them were red. (两个简单句) ②I found many flowers in the garden. Most of them were red. (两个简单句) ③I found many flowers in the garden, and most of them were red.（并列句）;④I found many flowers in the garden and most of them were red.（并列句） We finally reached London, which was the end of our journey. → We finally reached London, the end of our journey .（同位语） 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。;※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。 ①The girl who is crying is my sister→ The crying girl is my sister. ②The girl who is crying behind the tree is my sister.→ The girl crying behind the tree is my sister. ③This is a story which was written by Charles Dickens.→;This is a story written by Charles Dickens. ④The man who owns that car will be fined for illegal parking.→ The man owning that car will be fined for illegal parking. ※在定语从句中，如果含有情态动词或先行词前有序数词、last、next等，可以转化为含有不定式作定语的简单句。 ①You need someone who can look after you.→;You need someone to look after you. ② Mary was the first student who arrived at the square.→ ※ 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. ①The girl who is behind the tree is my sister.→ The girl behind the tree is my sister.