定语从句关系代词as
在平时的学习中，我们会觉得写作或做题时遇见的定语从句较多，除此之外，口语中也会有大量使用定语从句的时候。下面是小编整理的定语从句关系代词as，欢迎大家阅读学习。
as引导限制性定语从句
例题：I had never heard such an interesting story______you told me yesterday.
A.that B.which C.as D.that/which
有些同学可能选择D，这说明有关定语从句的基本知识学得不错，但知识还是有漏洞。
要记住：如果先行词被such,the same,so+形容词+a/an，as+形容词+a/an修饰时，这时关系词我们要用as。
此时，as同that,who,which,whom一样，是关系代词，代指the same,so,such和as引导的短语，常译作“正如，像”，在定语从句中通常作主语、宾语和表语。
A.先行词被such修饰时，构成“such…as…”。
It’s such a heavy stone as nobody can move.
那是一块重得没人能移得动的石头。(as作宾语)
Don’t trust such men as praise you to your face.
不要相信那种当面吹捧你的人。(as作主语)
B.先行词被the same修饰时，构成“the same…as…”。
We have arrived at the same conclusion as they have.
我们已得出和他们同样的结论。(as作主语)
This is the same watch as was worn by John.
这与约翰戴的那块表一样。(as作主语)
C.在 “as…as…” 句型中，第一个as后面跟名词时。
它可以看作是 “as+形容词+as” 的一种变化形式。
He is as good as his brother.他和他弟弟一样好。
这句话还可以表达为：
He is as good a boy as his brother.
It’s as pleasant a film as I have ever seen.(as作宾语)
这是一部和我以往看的同样好的电影。
(参看P.42考点4)
D.在“so+形+冠+n.+ as”句型中(He is so good a student as every teacher likes.)
它可以看作是先行词被such修饰时关系代词用as(第一种情况)的一种变化形式。
He is such a good student as every teacher likes.
他是一个每个老师都喜欢的这样一个好学生。
用so可以表达为：
He is so good a student as every teacher likes.
在下列情况下,引导宾语从句的关联词可以省略。
一、that在定语从句中作表语时。例如:
She is all(that)a teacher should be.她具备一个老师应该具备的所有条件。
二、that在从句中作补语时。例如:
Im not the fool(that)you thought me.我不是你以前所认为的那个傻子了。
He is the nicest teacher(that)the students consider him in their school.他就是学生认为学校中最好的那个老师。
三、作状语时的省略。
1.当先行词是reason,且在定语从句中作原因状语时,可以用关系副词why或关系代词that,也可以省略。例如:
The reason(why/that)he failed was his laziness.他失败的原因是因为他懒惰。
That is the reason I did it.那就是我做那件事的原因。
2.当先行词是way,且在定语从句中作方式状语时,关联词可用in which或that,也可以省略。例如:
The way(in which/ that)these comrades look at problems is wrong.这些同志看待问题的方式是错误的。
That was the way(in which/that)she worked the problem out.她就是用那种办法解决问题的。
3.当先行词是time时,关联词可用when,that或省略。例如:
The second time(that)I saw him was in 2000.我第二次见到他是在2000年。
I dont know the exact time(when/ that)the sports meeting will take place.我不知道运动会举办的确切时间。
4.当先行词是place时,关联词可用where,that或省略。例如:
The place(where/ that)we will have our picnic is not decided yet.我们举行野餐的地点还没定下来。
This is the right place he was born.这儿就是他的出生地。(注意:句末不可用介词in)
同学们往往认为关系代词作宾语时就一定可以省略,其实不然.在下列四种情况下,关系代词虽作宾语,却不能省略。
一、在介词+whom /which结构中,whom,which不能省略。例如:
Do you know any shops nearby in which I can buy flowers?你知道附近有可以买到花的商店吗?
That is the headmaster with whom my father was talking just now.刚才和我爸爸交谈的那个人是校长。
二、在非限制性定语从句中,作宾语的关系代词也不能省略。例如:
Mr Green,whom you know,is the tallest in our school.格林先生是我们学校里最高的,你也认识他。
The elephant is like a spear,as anyone can see.大象像长矛,任何人都知道。
三、在the same...as,such...as,as...as,the same...that结构中,as,that 即使作宾语,也不能省略。例如:
I have bought the same bike as you(have).(指同类用as)我买了一辆和你的一样的自行车。
This is the same book that I read the day before yesterday.这就是我前天读过的那本书。(关系代词that如要换成as,则指与我读的书一样,而不是同一本。)
四、当and,but,or等连词连接两个或两个以上的定语从句修饰一个先行词时,关系代词第一个可省略,第二、第三个等不可省略。例如:
This is the book(which)I read yesterday and which I found very interesting.这就是我昨天读的那本书,它很有趣。
You have many people around you(whom)you always turn to and whom you will never forget.你身边有很多人,你经常向他们求助,你永远不要忘记他们。
the same...as
1)as在从句中作主语
She is the same person as came here last Sunday.她就是上星期天来这儿的那个人。
2)as在从句中作宾语
This is the same watch as I lost while I was doing the sightseeing in Shanghai three months ago.这块表跟我三个月前在上海观光时丢失的那块一样。
3)as在从句中作be动词的表语
China is not the same country as it used to be.中国已今非昔比。
4)as在从句中作行为方式状语
You should learn to do housework in the same way as your mother does it.你应该学会像你母亲那样做家务活。
such...as
1)as在从句中作主语
Let children read such books as tend to make them better and brighter.让孩子看那些容易让他们变得更好更聪明的书。
2)as在从句中作宾语
This is not such an interesting book as you just talked about.这不是你们刚才谈到的那种有趣的书。
3)as在从句中作be动词的表语
Such a bad man as he is will be punished.像他这样的坏人一定会受到惩罚。
as...as
1)第二个as在从句中作主语
He has as much money as is required.他要多少钱就有多少钱。
2)第二个as在从句中作宾语
I have as many friends as you(do).我的朋友和你的朋友一样多。
3)第二个as在从句中作be动词的表语
As is known to all,Taiwan is one of the Chinese provinces。众所周知,台湾是中国的一个省。
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