Tham khảo tài liệu 'longman grammar of spoken and written english part 48', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Postmodification by prepositional phrase 637 limitations on unit size acad their first trip to Scotland news a legal right to compensation acad one apparently attractive answer to that question acad some cheese with garlic conv the man with the megaphone fict a sensible relationship with the West German mark news solids with low melting points acad Choice of prepositional phrase v. relative clause CORPUS FINDINGS 2 3 Full relative clauses are rare in comparison to prepositional postmodifiers. Full relative clauses with main verb have or with the copula be preposition occur less than 100 times per million words in all registers. By comparison prepositional phrases as postmodifiers occur around 68 000 times per million words in academic prose. DISCUSSION OF FINDINGS Many postmodifiers with of cannot be paraphrased as a full relative clause . these kinds which are of questions . Furthermore even the less common prepositions are still much more frequent in prepositional phrase postmodifiers than clausal alternatives. Although full relative clauses are much less common than prepositional postmodifiers there are certain discourse factors that favor those alternatives. The most important of these is the need to convey non-restrictive meaning. Non-restrictive relative clause with copula preposition Then he set off for Simon s house which was at the other end of the lane. fict He said the resident who is in her late 70s had been very confused. news Non-restrictive relative clause with have-. Quinn who had a disappointing game despite those two efforts on goal was taken off after 70 minutes news With animals like moles which have tough and durable skins the periods involved are longer acad In a number of cases relative clauses of this type are not separated from the head noun with a comma although they are still clearly non-restrictive in meaning With copula preposition She went one day to the tiny public library which was in a room with stained glass windows at the
