非限制性定语从句先行词women have to continue their unpaid domestic and caring work,such as of children,the sick and the elderly,which is often regarded as women's responsibility.1这句话的which指代的是什么?2那种用which 指代

非限制性定语从句先行词women have to continue their unpaid domestic and caring work,such as of children,the sick and the elderly,which is often regarded as women's responsibility.1这句话的which指代的是什么?2那种用which 指代
非限制性定语从句先行词
women have to continue their unpaid domestic and caring work,such as of children,the sick and the elderly,which is often regarded as women's responsibility.
1这句话的which指代的是什么?
2那种用which 指代前面一个分句的那种定语从句,which是指前一分句从主语到谓语到宾语...一整个句子呢,还是仅指核心部分?比如he tried to stand up,which is a difficult thing.这个which是指he tried to stand up还是to stand up?
3 he is a man who is very optimistic.这句话中的先行词是单个的一个单词man,还是a man.
4 一般情况下,从句中的关系代词就是指的先行词吧?

非限制性定语从句先行词women have to continue their unpaid domestic and caring work,such as of children,the sick and the elderly,which is often regarded as women's responsibility.1这句话的which指代的是什么?2那种用which 指代
1 which 指代their unpaid domestic and caring work（of children,the sick and the elderly)
2 which指代的东西随着语境不同而不同,多数是指其前面所陈述的事实.你的例子中的which指代前面整件事,意思就是“他努力尝试站起来”这件事对于“他”是一件困难的事.
3 这里指代的是man,因为“man who is very optimistic”是指乐观的人,“he is...”就是说“他是”乐观的人.“A”只是一个量词,它的出现只是因为man是一个可数单数名词,是出于语法上的需要.还不理解的话可以从汉语这样理“他是一个乐观的人.”、“他们是两个乐观的人.”这里的量词“一个、两个”只是说明了他（或他们）是属于乐观的人这个集合里的一分子,相当于英语中量词的作用咯.
4 不是喔.看这两个例子：
This is the book which I am looking for.中的book是先行词,which是关系代词.
He is Mr.Robertson who comes from England.中的Mr.Robertson.是先行词,who是关系代词.
结论：先行词就是被指代的事物咯,关系代词就是who、which、that及其格的变化（例如who变为宾格whom）.先行词是在关系代词的前面出现的,应该很容易理解吧.
第一次回答了这么长,
另外给点建议,不要抠语法抠得太多,特别是这些“先行词”这些神马的语法学上的名词,能听懂就行,不要记住.例如要记什么是先行词,就记who、which、that、whom、whose、of which、of/to whom这些（其实除了前三个,后面都是格的变化而已,记住前三个就都会了）.我的经验时,你能随口说出定语从句的时候（当然也需要词汇量的积累）你就会定语从句了.我现在大四快毕业了,到目前为止我敢说有关定语从句的题目我是错了的加起来不到10个,回想起来应该就是因为我已经随口可以说出来了,有时候忘记了一个形容词直接脱口而出一个定语从句就解决了.如果你能到我这种程度,你就真正学会了哈～

1 which 指代前面那句话
2 多数指整句话，也就是我们通常所说的代指前面提到的事
3 a man
4 不是，是先行词前面的词，比如he is a man who is very optimistic此句中man 是先行词，who 是关系代词

1.their unpaid domestic and caring work,such as of children,the sick and the elderly
2.指整个句子，这个which指代的是he tried to stand up,这句是非限制性定语从句，所以指代整个句子
3.man
4.不是。先行词是从句所修饰的名词，比如第三个问题里。先行词是man,而...

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1.their unpaid domestic and caring work,such as of children,the sick and the elderly
2.指整个句子，这个which指代的是he tried to stand up,这句是非限制性定语从句，所以指代整个句子
3.man
4.不是。先行词是从句所修饰的名词，比如第三个问题里。先行词是man,而关系代词是which, who ,that之类的， 如第三个问题里的WHO

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指代前面women have to continue their unpaid domestic and caring work,such as of children,the sick and the elderly
指的是全句
是指he tried to stand up
关系代词代表先行词