雾中迷失无论是身处学校还是步入社会，大家都尝试过写作吧，借助写作也可以提高我们的语言组织能力。写范文的时候需要注意什么呢？有哪些格式需要注意呢？下面是小编帮大家整理的优质范文，仅供参考，大家一起来看看吧。
四六级长句复合句分析篇一
三人行，必有我师焉。择其善者而从之，其不善者而改之。以下是小编为大家搜索整理的英语专业四级复合句语法考点材料辅导，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!
在复合句中，修饰某一名词或代词的从句叫做定语从句。
在定语从句中，被修饰的这一名词或代词叫做先行词。
在定语从句中的引导词叫做关系词。关系词又分关系代词和关系副词。
1、关系代词：which(指sth 作主语或宾语)，that(指sb或sth 作主语或宾语)，who(指sb作主语或宾语)，whom(指sb作宾语)，whose(指sb或sth，作定语),as(指sb,sth 作主语或宾语); 注意: 做宾语的时候， 关系代词可以省略。
2、关系副词：when(指时间 on which)，where(指地点 at which)，why(指原因 for which)
1.引导定语从句; 2.代替先行词; 3.在定语从句中担当一个成分。
eg. the man who is shaking hands with my father is a policeman.
主要是它们在从句中所起的作用不同。关系代词在从句中一般作主语或宾语。而关系副词在定语从句中作状语。
focus in：
v 方法一：句子成份法：关系代词在句中充当主语、宾语;关系副词在从句中作状语。
v 方法二：句子完整法：关系代词引导的定语从句不完整;关系副词引导的定语从句是完整的。
i will never forget the days when we spent our holidays together.
i will never forget the days that / which we spent together.
a. 限制性定语从句形式上不用逗号“，”与主句隔开。意义上是先行词不可缺少的定语，如删除，主句则失去意义或意思表达不完整。
b.非限制性定语从句只是对先行词的补充说明，如删除，主句仍能表达完整的意思。译法上译成先行词的定语“...的” 通常译成主句的并列句。 在非限制性定语从句中，通常用who, whom, whose 指人，用 which 指物。
eg. her brother who is now a soldier always encourages her to go to college.
她那当兵的哥哥总是鼓励她上大学.(意含：她还有其他哥哥。)
her brother, who is now a soldier, always encourages her to go to college.
她哥哥是当兵的，他总是鼓励她上大学。(意含： 她只有一个哥哥。)
a. 用who不用that的情况：
(1)当先行词为one, ones, anyone, those时。(2)当先行词为人称代词时。
he who does not reach the great wall is not a true man.
those who have any difficulty with pronunciation should practice more.
b. 用that不用who的情况：
1)当主句已经出现who时。2)关系代词在定语从句中作表语时。
who is the man that spoke to you just now?
mary is no longer the girl that she used to be.
a.只用that不用which 的情况：
(1)先行词为much, little, few, nothing, none, anything, no, all等不定代词
(2)先行词既有人又有物。
(3)先行词被形容词的最高级或序数词修饰。
(4)先行词被the very, the only, the last, just, all, any, every, no等修饰
(5)关系代词在从句中作表语.
(6) 在疑问词who、which、what开头的句子中
(7) 主句是there be句型：
this is one of the best films that i have ever seen.
china is no longer the country that it used to be.
all that can be done has been done.
he spoke of the things and persons that he had seen abroad.
this is the very book that i am looking for.
who is the man that is talking to jim?
there is a man that lives in that village.
b.只能用which不用that的情况: 1.介词后面 2.逗号后面
1. 定语从句中的介词前置时关系代词只能用which
2. 引导非限制性定语从句时只能用which, 其先行词可是一个词,也可是整个主句或主句的某一部分.
(1) the machine, which i have looked after for many year, is still working perfectly.
(2)my glasses, without which i was like a blind man, fell to the ground and broke.
**** 关系代词前介词的确定方法：
1. 定语从句的动词与先行词的逻辑关系，或者从句的动词、形容词的习惯性搭配。
eg. the farm on which i once worked has taken on a new look
who is the man with whom our teacher is shaking hands?
ours is a beautiful country, of which we are greatly proud.
2.非限制性定语从句中，表示先行词的一部分时，可用“数词/代词 + of + 关系代词”的.结构，
e.g. there are 50 students in our class, two- thirds of whom have been to beijing.
3. whose从句可转换为“ of +关系代词”型，whose的先行词指物时, 可用of which代替,
但词序不同， 即whose+n=the +n + of which =of which + the + n.
e.g. they live in a house, whose door opens to the south.
they lived in a house, the door of which open to the south.
of which the door open to the south.
⑴ 先行词为“时间的名词”用when：time(day, night, morning, week, month, year等)+when…
eg. i don’t remember the day when he left.(on which)
⑵ 先行词为“表示地点的名词” ★★★★★ where：place(case, point, situation, condition, scene, stage, country, room, house, hotel, museum, school, street等)+where…
eg. that is the house where he lived two years ago. (in which)
⑶ 先行词为“表示原因的名词”why：reason+why…(表示原因的名词只有一个)
that's the reason why i helped him.(why =for which)
两者均可引导非限制性定语从句，as 放在句首句中都可以，which 必需放在句中，但下列情况多用as。
1. 关系代词引导的定语从句居句首时。e.g. as we all know, the earth is round.
2. 当与such , as或the same连用时，一般用as。
e.g. that’s the same tool as i used last week.
i am not so strong a man as i was.我已经没有从前那么强壮了。
3. 当主句和从句之间存在着逻辑上的因果关系时，关系词往往只用which。
was late for school again and again, which made his teacher very angry.
same... as 和 the same ...that的用法辨异.
that’s the same tool as i used last week.(同类事物)
that’s the same tool that i used last week. 那就是我上周用过的工具。(指原物)
2. 定语从句与强调句型的区别 判断是否是强调结构的方法是采用删除法
分析：强调句句型：it is/was +被强调的成份+that/who +其它部分.去掉 it is/was….that/who… ,句子照样成立。
①it is on the morning of may 1st _____ i met liang wei at the airport.
②it is the factory _____ mr wang works.
3、定语从句与习惯句型的区别
①it is the first time _____ she has been in shanghai.
(it is/was the first/second . time +that从句)
②it was the time _____ chinese people had a hard life.
1. the way 做先行词时，定语从句可由that, in which 引导或不用引导词。
2. 定语从句中主谓一致问题：从句中的动词在人称和数方面应该与它的先行词保持一致。
he is one of the teachers who know english well.
he is the only one of the teachers who knows english well.(特殊)
3.疑问句的解题思路 ：先把疑问句还原成陈述句，然后判断谁是先行词，再看关系词在定语从句中所充当的成分，最后确定正确答案。
1. is this factory ____ we visited last week?
2. is this the factory ____ we visited last week?
a、where b、that c、to which d、the one
★★小试牛刀
that is the factory where produces 100,000tv sets a year.
that is the factory that his father once worked.
i’ll never forget the days when we spent on that lonely island.
i’ll never forget the day when/on which i joined the party.
1，连词：when, while, as, till/until, before, after, since, once, as soon as ，every time, the moment, the minute， no sooner ..than hardly…when等
2.五大考点：
考点 ⑴ when vs while vs as
★ 当….的时候 ★当…的时候 ★ 当….的时候
when while as ★一边….一边….
★趁着…时候 ★ 随着…
考点 ⑵ till / until “直到….为止”
eg. mother waited for tom till/ until it was far into the night. ( 持续性动词)
eg. tom didn’t get back till / until everything was all right.(短暂性动词)
考点⑶ when 的两个句型
sb is about to do sth when / sb is doing sth when
考点 ⑷ since“ 自从”
句型：it is/ has been +一段时间+since +从句
eg. it is three days since i left beijing.
it has been 10 years since i smoked.
考点 ⑸ no sooner than/ hardly ..when/ scarcely..when 一 .就..用于句首要求倒装
eg. no sooner had he arrived than he went away again.
★几种特殊句型结构的区别：
(1)it is/was + 时刻 + when从句“某事发生时是什么时候。”
(2)it is/has been + 时间段 + since从句“自从……以来有多长时间了。”
(3)it will/would be + 时间段 + before 从句“还要过多长时间……才……”
(4)it will/would not be + 时间段 + before 从句“过不了多长时间……就会……”
(5)it was + 时间段 + before从句“过了多长时间才……”
(6)it was not + 时间段 + before从句“没过多长时间就……”
1,连接词：if , unless( 如果..不，除非), so/as long as(只要), on condition that(条件是)，as (so) far as ( 据..所知), provided that(要是，如果)， in case(假使，如果)，等
2.两大考点：
考点 ⑴ once --- 一但……就……
eg. once you see him, you will never forget him.
考点 ⑵ in case --- 假使, 如果
the plane cannot take off in case it rains.
1，连接词：
because, since, as(放句首) , for, now that(既然，由于), when(既然), considering that(顾及到---), seeing that(由于)。(都表示原因，语气依次减弱)
2，考试聚焦
考点一、because vs since vs for
because: 表示“因为”，表示直接的或明确的原因;
since: 表示“既然”， 表示已知或显然的原因;
for : 不是从属连词，而是并列连词。它不是用来说明原因，而是用来表示一种附带或补充解释、说明，不放在句首。
eg: it was because his mother was badly ill that he was unhappy.
since everyone makes mistakes in life, you needn’t scold him for it.
the day breaks, for the birds are singing.
考点二、 when 既然
eg. how can you expect to learn anything when you never listen?
1.连接词:though/although(虽然), as /though(虽然), even if/though(即使)whatever(无论什么), wherever(无论哪里), while (尽管)等引导。
2，考试聚焦：
考点一：though/although 不与but 连用, 但是他们都可以同yet (still) 连用. 所以though (although)…yet(still)的格式是正确的
考点二：while 尽管 eg. while i have sympathy for you, i can’t help you.
考点三：whether ---不管，常与or not 连用
eg. whether he is good or not, the company decided to send him abroad.
考点四：no matter +疑问词相当于疑问词+ever: 不管…都…
考点聚焦：地点状语从句和where定语从句的区别：
tips: 判断是定语从句还是地点状语从句，要看从句前是否有先行词，有先行词的是定语从句，否则是状语从句。
eg. where there is a will, there is a way. this is the factory where my father works.
1. 连接词： so that(=in order to 因而), so…that.(太..以至于)，such…that(太…以至于)
2.考试聚焦：考点句型
(1) so + 形容词/副词+ that从句;
(2) such a/an + 形容词+可数名词单数+that从句;
(3) so + 形容词+ a/an + 可数名词单数+that从句;
(4)such + 形容词+ 可数名词复数/不可数名词+that从句
1. 连接词：so that(以便), in order that(为了), for fear that(为了防止), lest(以防)
eg. he took the name down for fear that he should forget it.
1. 连接词：a. ….as…as… b. ….adj. + -er than… c. the more…the more…
eg. this work is not as easy as you think
the more you work, the more you earn. he runs faster than i.
the room is twice as big as that one. the room is twice bigger than that one.
the room is twice the size of that one. the well is three times the depth of that one.
★ while 的总结用法：1. 当…的时候;2. 而，却;3. 趁着;4. 只要;5.虽然，尽管。
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