一键复制
人的记忆力会随着岁月的流逝而衰退，写作可以弥补记忆的不足，将曾经的人生经历和感悟记录下来，也便于保存一份美好的回忆。范文书写有哪些要求呢？我们怎样才能写好一篇范文呢？这里我整理了一些优秀的范文，希望对大家有所帮助，下面我们就来了解一下吧。
限制性定语从句与非限制性定语从句的区别0篇一
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根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去；非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。在以上几个单元我们已经学习了限制性定语从句，现在把两种从句作对比学习。
1.关系代词that既可代表事物也可代表人，which只代表事物，它们在从句
中作主语或宾语。在从句中作宾语时常可省略。
i was the only person in our office that was invited to the palace ball．
the present that（which）i received last week was from my sister．
this is a book which is about space rocket technology．
2.关系代词who和whom引导的从句用来修饰人，分别作从句中的主语和宾语，whom作宾语时，要注意它可以作动词的宾语也可以作介词的宾语。如：
this is the man who helped me．
the doctor whom you are looking for is in the room．
3. whose是关系代词，修饰名词，作定语，相当于who和whom的所有格，既可以修饰人又可以修饰物。如：
do you know the student whose name is wang fei？
we lived in a room whose window opens to the west.
4. where是关系副词，用来引导表示地点的定语从句，where在从句中作状语。如：
at last we arrived at a small village where we’ll work for a week.
5. when是关系副词，引导定语从句表示时间，在从句中作状语。
注意，表示时间的the time，the day, the moment作先行词，其定语从句引导词有四种情况：1）when,2) in/ on which3) that4)省略。如：
by the time you arrive in london, we will have stayed there for two weeks.
i still remember the day i met her.
each time he goes to business trip, he brings a lot of living necessities.
6. why是关系副词，引导定语从句表示原因，在从句中作状语。
7.关系副词when, where, why可以用“介词+关系代词”结构代替，但有两点要注意：
1）在“介词+关系代词”结构中，不能用that。关系代词指物用which,指人时用whom，不用who；且which和whom在这个结构中不能省略。如：
the plane in which we flew to canada is very comfortable. (正确)
the plane in that we flew in to canada is very comfortable.(错误)
2）在使用介词+关系代词引导的定语从句时，含有介词的动词短语一般不拆开使用，如：look for, look after, take care of等。如“this is the watch which/that i am looking for.”不可以改为“this is the watch for which i am looking.”
非限制性定语从句的作用是对所修饰的成分作进一步说明，通常和主句间用逗号隔开，将从句拿掉后其他部分仍可成立
1. which引导的非限定性定语从句，可用来说明前面整个句子的情况或主句的某一部分。如：
she heard a terrible noise，which brought her heart into her mouth．
david studies hard and is ready to help others，which is what his parents expect．
2.在非限制性定语从句中，不能用that，而用who, whom代表人，用which或as代表事物。关系代词作定语时用whose。如：
he loved his parents deeply, both of whom are very kind to him.
in the basket there are quite many apples, which have gone bad.
there are forty students in our class in all, most of whom are from big cities.限
his mother, who loves him very much, is strict with him.
china, which was founded in 1949, is becoming more and more powerful.
限制性定语从句和非限制性定语从句有时表达的意义不同，试分析下面两个句子的差别：
his brother who is now a doctor always encourages him to go to college.
他那当医生的哥哥常鼓励他要考上大学。（他还有其他的哥哥）
his brother, who is now a doctor, always encourages him to go to college.
他的哥哥是当医生的，常鼓励他要考上大学。（他只有一个哥哥）
3. as和which引导非限制性定语从句
as和which引导非限制性定语从句，有相同之处也有不同之处。具体情况是：
1）as和which都可以在定语从句中做主语或者宾语，代表前面整个句子。
he married her, as/which was natural.
he was honest, as/which we can see.
as we know, smoking is harmful to one's health. the sun heats the earth, which is very important to us.
as we know, smoking is harmful to one’s health.
as is know, smoking is harmful to one’s health.
2）as引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以
切割一个主句；which引导的非限制性定语从句只能放在主句之后。
as is known to all, china is a developing country.
he is from the south, as we can see from his accent.
john, as you know, is a famous writer.
he has been to paris more than several times, which i don’t believe.注意：当主句和从句存在逻辑上的因果关系时，常用which
tom was always late for school, which made his teacher angry.
3）the same… as；such…as是固定结构,意思是“和……一样……。”如：
i have got into the same trouble as he (has).
i have never heard such a story as he tells.
he is not such a fool as he looks.
this is the same book as i lost last week.
注意：当先行次由the same修饰时，偶尔也用that引导定语从句，但是和由as所引导的定语从句意思不同。如：
she wore the same dress that she wore at mary’s wedding.
她穿着她在玛丽婚礼上穿过的一条裙子。
she wore the same dress as her young sister wore.
她穿着和她妹妹所穿的一样的裙子。
1. the soldier ran to the building, and ____flew a flag.
a. on the top of whichb. on the top of whom
c. on the top of itd. which
2. when the same man ____murdered the old lady entered the hotel once more,
the waiter immediately phoned the police.
a. asb. thatc. whichd. whom
3. he wore, ____was very common at the time, a black jacket.
a. thatb. whichc. itd. what
4. was it in the room ____mr. johnson lived ____the exhibition was held?
a. that; thatb. where; thatc. where; whered. that; where
5. ____, the population of china is the largest in the world.
a. it is known thatb. as is well known
c. which is well knownd. we all know that
6. this is the very reason____ he gave me.
a. thatb. whyc. for whichd. which
7. he arrived in new york in 1949, ____, some time later, he became a writer.
a. whenb. wherec. thatd. which
8. they’re talking about the newly opened market, ____you get all ____you need.
a. in which; whichb. where; thatc. where; whichd. which; that
9. she heard a terrible noise, ____brought her heart into her mouth.
a. itb. whichc. thisd. that
10. i said nothing, ____made her angry.
a. whichb. whatc. /d. that
11. i shall never forget the time ____the blacks and whites were fighting side by side.
a. whenb. thatc. /d. a, b and c
12. he has three sons, ____are doctors.
a. two of whomb. both of whomc. all of themd. each of them
13. he tore up my photo, and____ made me angry.
a. thatb. whatc. whichd. who
14. i still remember the sitting-room____ my mother and i sat in last year.
a. whereb. in whichc. thatd. to which
15. the day we looked forward to ____.
a. comeb. comingc. having comed. has come
1. c。由于and的存在，这是并列句，而不是非限制性定语从句，排除a.
2. b。这里the same修饰man，其后只能用能代表人的关系代词that引导定语从句；whom是宾格，这里引导词要在从句中作主语，故不能用。
3. b。which引导一个非限制性定语从句，which所代表的是整个主句的意思，为了强调从句而提前了。
4. b。识别强调句型不难，但极有可能在第一个空填that,而误选d。其实被强调的部分还含有一个定语从句，修饰room.
5. b。只有as引导的非限制性定语从句可位于主句之前，排除c；若去掉句中的逗号，a项则可构成含有主语从句的复合句，d项则可构成含有宾语从句的复合句。
6. a。强干扰项是b.这里不选why，是因为定语从句缺的.是宾语，故用关系代词that.试比较：this is the reason why he gave me so much money;先行词已被very一类的词修饰过了，其后定语从句不用which引导，故亦排除d.
7. b。强干扰项是a.想当然地认为定语从句先行词是时间，事实上，这个非限制性定语从句所修饰的先行词是地点new york,被介词结构分隔了。
8. b。where引导非限制性定语从句，在该定语从句中，不定代词all又带that引导的限制性定语从句。
9. b。从句子结构看，这是个主从复合句，故不用it和this;引导非限制性定语从句不用that.
10. a。如果只想当然地认为nothing是不定代词，其后的定语从句要用that引导，就错了。这里是一个非限制性定语从句，应该用which引导，并且which所代表的是整个主句的意思。
11. d。英语中少数几个与时间有关的名词，如the time, the day, the moment作先行词，所带定语从句的引导词可用that代替when,也可以省略。
12. a。如果看出这是个定语从句，c、d很容易排除。both of whom中的whom指两个，数量是2/2；two of whom, whom指三人，数量是2/3.
13. a。强干扰项是c,因为有and，这是并列句,不是非限制性定语从句。这里that是指示代词，作主语。
14. c。如果错误地把后面的介词in理解为in last year,可能误选a、b.事实上，in与前边的关系代词that引导定语从句。last year是名词词组作时间状语，不加冠词。
15. d。这里“(that/which) we looked forward to”是修饰the day的定语从句；to的宾语是省略了的引导词。
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