非限定從句由非限定動詞[i.e. an 非限定或-ing形式] 作為句首而該部分通常是一個較長從句的一部分，該動詞或其-ing形式可作為主語或補充。
Working as a lifeguard is fun.
Cleaning the pool deck, he slipped and sprained his ankle.
To work as a lifeguard is fun but dangerous.
He usually arrives an hour before the pool opens to add chlorine.
1/Safety signs should be placed in the pool area to show the depth of the water.
2/There should be a telephone to call for help in case of an emergency.
3/Training lifeguards in pool rescue and CPR techniques can save people’s lives.
4/The first aid kit and its contents should be regularly checked to ensure it is in good condition.
5/Running on the pool deck can cause injuries.
※ 非限定子句：關代之前有「，」者稱為非限定用法，用在先行詞相當明確時，子句和先行詞之間關係比較鬆散，主在補充說明之用，即使省略了子句也不影響主句意義的完整。此種用法尤其在先行詞為專門名詞 ( 如人名、地名等 ) 時，應加上逗號，用非限制子句修飾，因先行詞很明確，不需指認或界定，而且先行詞只有一個。
My brother who lives in Taipei will come back next week. 我住在台北的哥哥下週會回來。
My brother, who lives in Taipei, will come back next week. 我哥哥，他住在台北，下週會回來。
The workers [who have finished their work] may leave. 做完工作的工人可以離開。
The workers, [ who have finished their work ], may leave. 這些工人，已經做完工作，可以離開。
有逗號"，" [ ] 中為非限定子句，意為「所有的工人都做完工作，都可以離開。」
What hell is 限定子句 and 非限定子句 !?!?!?!?!?HELP ME!!!!!!!!!!
What ＂ＴＨＥ＂ hell is 限定子句 and 非限定子句 !?!?!?!?!?HELP ME!!!!!!!!!!
THX, TOMING88既回答...但其實我希望有中文答案 :-)
- GodfreyLv 77 年前最愛解答
(1) My brother who lives in Taipei will come back next week.
“who lives in Taipei” 在你這句子中是限定子句
講者指明是居住台北那個兄弟, 不是其他的兄弟,其他的兄弟可能居住北美, 歐洲或者其他地方. 講者至少有兩個兄弟.
限定子句是不可缺少的子句, 用來識別 (identify) 那位兄弟, 不是任何一個, 所以限定子句是需要 (limiting, restricting = 限定)
英文稱 defining clause, (restrictive clause) – clause singles out a particular person or thing from two or more similar people or things, showing which one we are talking about.
(2) Is this the book that you were looking for?
that you were looking for 是限定子句, 用來識別那本書, 不是任何一本, 是你之前找那本
(3) My brother, who lives in Taipei, will come back next week.
“who lives in Taipei” 在你這句子中是非限定子句, 前後有逗點
不限定子句可有可無, 不是一定需要, 作用是補充, 講多句關于兄弟, (additional information), 如果省略了, 無傷大雅, 不會影響主句原意 My brother will come back next week
英文稱 non-defining clause, (non-restrictive clause) – clause which doesn’t define in that particular context even though the same words in the same place, if spoken or punctuated differently, might do so.
(4) My Uncle David, who is a classical music fanatic, is a surgeon.
“who is a classical music fanatic” 是非限定子句
classical music fanatic = 古典音樂狂熱者
My Uncle David would still be my uncle even if he were not a classical music fanatic. The information provided in the clause does not serve to tell us which uncle I am talking about. I only have one uncle. The fact that he is a classical music fanatic does not serve to distinguish one Uncle David from other. 所以是非限定 (non-restrictive).
非限定子句如果在整句中間, 前後有 commas 分開
其他你提到的gerund phrase, present participle phrase, infinitive phrase 是另外的話題, 有機會再討論, 用了你兩個例子和我兩個例子, 希望你能夠辨別限定子句與非限定子句, 何時用到. Good luck!
- TOMING88Lv 77 年前
Adjective clauses are of two types. Consider the following examples:-
My brother who lives in Taipei will come back next week.(=others)
In this sentence the adjective clause is a necessary part of the idea; If it is left out, the sentence does not make complete sense. All this clause define the antecedent and give it its definite notation significant.They indicate which brother out of many brothers.
Now consider this sentence:-
My brother, who lives in Taipei, will come back next week. (-only one)
In all this sentence the adjective clause could be omitted and the rest of the sentence would still make perfect sense.The adjective clauses here are a kind of parenthesis, a casual remark, an aside or an explanation. They could be written between brackets or dashes, eg:-
My brother (who lives in Taipei) comes.
My brother----who lives in Taipei-------comes next week.
They do not define the antecedent (=brother).
What they do is to give additional information about an antecedent which has already been sufficiently defined. They are therefore called NON-Defining or AMPLIFYING Clauses.
This parenthetical construction of non-defining clauses is shown by a comma in writing and by a pause in speaking at the beginning and end of the clause
NB,Commas must not be put round a defining clause(=other brothers)
NB:-Working as a life guard, he.....
means participles as adverb clause equivalents
workign=as, because he was working, as he worked.
Keep up your good work.
2014-03-06 09:14:07 補充：
(1)Subjects are different between front&back=independently:-The pool deck having cleaned, he slipped. This cleaning (being) done, he added chlorine. He acts as a lifeguard,work permitting. There being no lifeguard around, he slipped&sprained.
(2)Independent subjects at-Arriving 1 hr before...