下面是小编为大家整理的高一英语定语从句知识点（共含4篇），供大家参考借鉴，希望可以帮助到有需要的朋友。同时，但愿您也能像本文投稿人“宁波小歪”一样，积极向本站投稿分享好文章。
一名词性从句:
1. 主要包括主语从句,宾语从句,表语从句和同位语从句. 一般由that 引起,也可由who, what, when, why, which,whom, whether, how 引起.
2. 主语从句很多情况下都可以放到句子后面,而用代词it作形式上的主语. :
3. 形式宾语
4. 由名词性关系代词whatever, whoever, whichever 等引起的宾语从句
5. whether and if 都能引导从句, 但用法有所不同. 当主语从句直接位于句首时,应用whether,而不用if. Whether 后能直接or not, 但if 不能.
Whether he will come or not isnot known.
6. 在名词reason后的表语从句必须用that引导, 不可误用 because.
The reason why he is often latefor class is that he has the bad habit of getting up late in the morning.
二:定语从句
1. 引导定语从句的关系词有who, whom, whose, that, when,where, why and which. 在非限制定语从句中, 只可用which, who, whose, where ,when., 如果指代前面整个句子, 多用which.
2. 当引导定语从句的先行词前有all, any, no, little, much,very first 等词, 或先行词前为形容词最高级所修饰时,或先行词为all, anything, nothing,something, everything 时,从句的引导词只能用that.
3. as 可做引导词引导定语从句, 多和such, the same 连用. As 引导的定语从句也可修饰整个句子, 既可放在先行词后,也可放在句子开头.
4. 介词+which/whom/whose从句
5. 代/名+介词+which 从句
6. 同位语从句和定语从句
三、定语从句的关系词
引导定语从句的关系词有关系代词和关系副词，常见的关系代词包括that， which， who(宾格whom，所有格whose)等，关系副词包括where， when， why等。关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。
四、定语从句的分类
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。
五、关系代词的用法
1. that 既可以用于指人，也可以用于指物。在从句中作主语或宾语，作主语时不可省略，作宾语可省略。例如：
Mary likes music that is quietand gentle.玛丽喜欢轻柔的音乐。(that作主语)
The coat (that) I put on thedesk is blue.我放在桌子上的那件外套是蓝色的。(that作宾语)
2.which用于指物，在句中作主语或宾语，作主语不可省略，作宾语可省略。例如：
The building which stands nearthe train station is a supermarket.位于火车站附近的那座大楼是一家超市。(作主语)
The film (which) we saw lastnight was wonderful. 我们昨天晚上看的那部电影很好看。(作宾语)
3.who， whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom，也可省略。例如：
The girl who often helps mewith my English is from England.经常在英语方面帮助我的那个女孩是英国人。(作主语)
Who is the teacher (whom) LiMing is talking to? 正在与李明谈话的老师是谁?(作宾语)
注意：
(1)当定语从句中含有介词，介词放在句末时，who， that， which可省略，但介词在关系代词前时，只能用“介词+which/whom”结构。例如：
This is the house in which welived last year.这是我们去年居住的房子。
Please tell me from whom youborrowed the English novel.请告诉我你从谁那借的这本英文小说。
(2)含有介词的固定动词词组中，介词不可前置，只能放在原来的位置上。例如：
This is the person whom you arelooking for. 这就是你要找的那个人。
(3)that 作介词的宾语时，介词不能放它的前面，只能放在从句中动词的后面。例如：
The city that she lives in isvery far away.她居住的城市非常远。
(4)关系词只能用that的情况：
a. 先行词被序数词或形容词最高级所修饰，或本身是序数词、基数词、形容词最高级时，只能用that，而不用which.例如：
He was the first person thatpassed the exam. 他是第一个通过考试的人。
b.被修饰的先行词为all， any， much， many， everything， anything， none， the one等不定代词时，只能用that，而不用which.例如：
Is there anything that you wantto buy in the shop? 你在商店里有什么东西要买吗?
c.先行词被the only， the very， the same， the last， little， few 等词修饰时，只能用that，而不用which.例如：
This is the same bike that Ilost.这就是我丢的那辆自行车。
d. 先行词里同时含有人或物时，只能用that，而不用which.例如：
I can remember well the personsand some pictures that I saw in the room.我能清楚记得我在那个房间所见到的人和一些照片。
e.以who或which引导的特殊疑问句，为避免重复，只能用that.例如：
Who is the girl that is crying?正在哭泣的那个女孩是谁?
f.主句是there be 结构，修饰主语的定语从句用that，而不用which.例如：
There is a book on the deskthat belongs to Tom. 桌子上那本书是汤姆的。
(5)关系词只能用which，而不用that 的情况：
a.先行词为that， those时，用which，而不用that.例如：
What’s that which is under thedesk? 在桌子底下的那些东西是什么?
b.关系代词前有介词时，一般用which，而不用that.例如：
This is the room in which helives. 这是他居住的房间。
c.引导非限制性定语从句，用which，而不用that.例如：
Tom came back， which made us happy. 汤姆回来了，这使我们很高兴。
五、关系副词的用法
(1)when指时间，其先行词表示时间，在句中作时间状语。例如：
This was the time when hearrived.这是他到达的时间。
(2)where指地点，其先行词表示地点，在句中作地点状语。例如：
This is place where he works.这是他工作的地点。
(3)why 指原因，其先行词是原因，起原因状语作用。例如：
Nobody knows the reason why heis often late for school. 没人知道他为什么上学总迟到。
形容词：放在名词前，修饰名词例如：beautiful 美丽的。It’s a beautiful map 它是一张漂亮的地图
副词：放在动词后，修饰动词例如：fast 快， He runs fast 他跑得很快。
形容词前面， He is really good 他是真真地很好
形容词和副词级的变化规则
口诀：长加前，短加后，长前加more ，most ，短后er，est，
长加前：
The book is as interesting as that one 这本书和那本书一样有趣
The book is much more interesting than that one 这本书比那本书有趣得多
The book is a little more interesting than that one 这本书比那本书有趣一点点
The book is even more interesting than that one 这本书甚至比那本书更加的有趣
短加后。
一般直接加er，est，
He is taller 他更高，
He is the tallest 他最高
以重读闭音节结尾，双写最后一个辅音字母，并且加er，est
例如：thin---thinner---thinnest
He is thinner 他更瘦
He is the thinnest 他最瘦
以不发音的e结尾加r，st
例如：nice—nicer---nicest
It’s nicer 它更加美好
It’s the nicest 它是最美好的
以辅音字母加y 结尾，去掉y加ier，iest
early---earlier----earliest
He gets up earlier 他起床更早
He gets up earliest 他起床最早
不规则的级的变化：
bad----worse---worst (坏的)
ill---worse---worst(生病的)
many---more---most (很多)
much---more---most(很多)
good---better---best(好的)
well----better---best(好的)
old----elder/older---eldest/oldest(老的)
far---farther/further---farthest/further(远的)
little---less---least(少的)
级的变化的标志：
原级： as 。。。。as 和。。。一样。He is as tall as me 他和我一样高。
比较级：than，比，much很多，a little一点，even甚至
He is much taller than me 他比我高很多
He is even taller 他甚至更高
He is a little taller 他只是高一点点
He is taller than me = I am not as/so tall as him 他比我高
最高级：the ，of ，
He is the tallest of all boys 他是所有男孩中最高的
He is the tallest in my class 他在我的班里是最高的
级的使用方式：
1，比较级+and +比较级，越来越。。。
He is taller and taller 他是越来越高了
the +比较级，the +比较级，越。。。，越。。。。
The more you learn ，the better you will be 你学习越多，你就越好
He is taller than any other student in my is the tallest student in my class 他在我的班里是最高的学生
一般将来时：将来将要发生的动作或者状态
结构：will/shall(第一人称疑问句)+动词原形(无计划，自然发生)
结构2：be(am，is ，are)+going to do (打算做某事，有计划)
标志词：tomorrow明天，in+时间段(。。。之后)，in the future 在将来，following +时间段(接下来的。。。)，
He will go to Beijing tomorrow 明天他将要去北京
=He is going to Beijing tomorrow
He will be better in the future 将来他将会更好
He will play football in the following week
=He is going to play football in the following week 他将会在接下来的一周里踢足球
宾语从句：从句在复合句里冲淡宾语的句子
例如：
I don’t know where you are 我不知道你在哪里(陈述语气)
I want to know if you are right 我想要知道你是否是对的
He told me the earth is round 他告诉我地球是圆的
动词不定式：to +动词原形+sth
做主语的时候：
It is good to study English well 学习英语好是很好的事情
=To study English well is good
做宾语的时候：动词词组：动词+to do sth
I want to do housework 我想要做家务
做补语的时候：
I ask you to do homework 我叫你去写作业
I believe it good to learn English well 我相信学好英语是很好的
I think it good to learn English well 我认为学好英语是很好的
I find it good to learn English well 我发现学好英语是很好的
I discover it good to learn English well 我发现学好英语是很好
I feel it good to learn English well 我感觉学好英语是很好的
I make it good to learn English well 我使得学好英语是很好的
邀请和应答：
Would you like some milk ?你想要一些牛奶么?
Would you like something to eat ?你想要吃一些东西么?
回答：Yes,I’d love to 是的，我很想。 Sure=certainly =of course，当然，I’d love to 我想要。
Sorry ，I can’t 对不起，我不能
Sorry ，I am afraid not 对不起，我恐怕不行
【重点短语】
1. fewer people 更少的人(fewer修饰名词复数，表示否定)
2. less free time 更少的空闲时间(less修饰不可数名词，表示否定)
3. in ten years 后(in的时间短语用于将来时，提问用How soon)
4. fall in love with„ 爱上„
例：When I met Mr. Xu for the first time, I fell in love with him at once
当我第一次见到许老师，我立刻爱上他
5. live alone 单独居住
6. feel lonely 感到孤独(比较：live alone/go along等)
The girl walked alone along the street, but she didn’t feel lonely那女孩独自沿着街道走，但她并不感到孤独
7. keep/feed a pet pig 养一头宠物猪
8. fly to the moon 飞上月球
9. hundreds of +复数 数百/几百(概数，类似还有thousands of; millions of)
10. the same as 和„„相同
11. A be different from B A与B不同(=There is a difference/Thgere are differences between A and B)
12. wake up 醒来(wake sb. up表示 “唤醒某人”
13. get bored 变得厌倦(get/become是连系动词，后跟形容词如tired/angry/excited等)
14. go skating 去滑冰(类似还有go hiking/fishing /skating/bike riding等)
15. lots of/a lot of 许多(修饰可数名词、不可数名词都可以)
16. at the weekends 在周末
17. study at home on computers 在家通过电脑学习
18. agree with sb. 同意某人(的意见)
19. I don’t agree. = I disagree. 我不同意
20. on a piece of paper 在一张纸上(注意paper/information/news/work/homework/housework等常考到的不可数名词)
21. on vacation 度假
22. help sb with sth/help sb do sth 帮助某人做某事
23. many different kinds of goldfish 许多不同种金鱼
24. live in an apartment 住在公寓里/live on the twelfth floor 住在12楼
25. live at NO.332,Shanghai Street 住在上海路332号
26. as a reporter 作为一名记者
27. look smart 显得精神/看起来聪明
28. Are you kidding? 你在骗我吗
29. in the future 在将来/在未来
30. no more=not „anymore 不再(强调多次发生的动作不再发生)I’ll go there no more.
31. no longer=not„ any longer 不再(强调状态不再发生)
32. besides(除„之外还，包括)与except „but(除„之外，不包括)
33. be able to与can 能、会
l (be able to用于各种时态，而can只能用于一般现在时态和一般过去时态中;have to用于各种时态，而must只能用于一般现在时态)例如：
1.I have been able to/will be able to speak two languages. (不可以用can)
2. had to stay at home/ will have to (不可以用must)
34.be big and crowded 大而且拥挤
34. be in college 在上大学
35. live on a space station 住在空间站
36. dress casually 穿得很随意casual clothing 休闲服饰
37. win the next World Cup 赢得世界杯 win award 获僵
38. come true 变成现实
39. take hundreds of years 花几百年的时间
40. be fun to watch 看起来有趣
41. over and over again 一次又一次
42. be in different shapes 形状不同
43. twenty years from now 今后
【本单元目标句型】
1. What do you think life will be like in 1000 years?
2. There will be fewer trees、more buildings and less pollution in the future. l fewer; less表示否定之意，分别修饰可数名词和不可数名词;more二者都可以修饰。
3. Will kids go to school? No, they won’t/Yes, they will。
4. Predicting the future can be difficult.
5. I need to look smart for my job interview.
6. I will be able to dress more casually.
7. I think I’ll go to Hong Kong on vacation, and one day I might even visit Australia.
8. What will teenagers do for fun twenty years from now?
9. That may not seem possible now, but computers, space rockets and even electric toothbrushes seemed impossible a hundred years ago.
高一英语定语从句句子
1.定从分类有奥妙, 限与非限看逗号;
定语从句分为两大类：限制性定语从句和非限制性定语从句，区分它们有两个标准：1）从内容上看，限制性定语从句与它所修饰的先行词关系紧密，不可去掉，去掉后意思就不完整了；非限制性定语从句只对先行词起补充说明的作用，去掉后不影响句子的完整性。2）从形式上看，限制性定语从句与先行词之间没有逗号隔开，而非限制性定语从句与先行词之间有逗号隔开。请看例句：
The girl who is wearing a blue necklace is Mary.(限制性)
The girl, who is also a student, is planting trees in the field.(非限制性)
解析：第一句中的who is wearing a blue necklace是限制性定语从句，没有逗号，不那去掉，否则意思不完整。
定前必有先行词，名代两类最适宜；
例句：
1)There is somebody here who wants to speak to you.
有人要和你讲话。
2)Those who were for the plan raised their hands.
那些赞成计划的举起了手。
3)This novel, which I have read three times, is very touching.
这本小说很动人，我已经读了三遍。
解析：例句中somebody、those是代词，novel是名词，是被定语从句修饰的词，叫做先行词，可以做先行词的是名词和代词两类。
定从先行很紧密，代副两词拉关系；
定语从句都在先行词之后，连接定从和先行词的词，叫做关系词。关系词有两类：关系代词和关系副词。关系词要注意两点：1）它的人称、数和意思完全等同于先行词，2）关系词在定语从句中做一定的句子成分。
例句 1) The boys who are playing football are from Class One.
正在踢足球的男生们是一班的。
解析：who＝boys , 在定语从句中做主语，所以其后谓语用are。
例句 2) Football is a game which is liked by most boys.
足球是大多数男孩子喜欢的运动。
解析：which=game, 在定语从句中做主语。
例句 3）I still remember the day when I first came to the school.
我仍然还记得第一次到学校的那一天。
解析：when是关系副词＝on the day, 在定语从句中做时间状语。
例句 4）The house where I lived ten years ago has been pulled down.
十年前我居住的房子已经被拆了。
解析：where是关系副词＝in the house, 在定语从句中做地点状语。
例句 5）Please tell me the reason why you missed the plane.
请告诉我你没赶上飞机的原因。
解析：why是关系副词＝for the reason, 在定语从句中做原因状语。
高一英语定语从句造句
一、什么是定语(Attributive) :
a loyal friend 形容词作定语
a woman teacher 名词作定语
a girl with long hair 介词短语作后置定语
falling / fallen leaves 分词作定语
定语从句在句中相当于一个定语的成分起修饰的'作用。
二、定语从句的构成：
1)which/that
a. Annawas wearing a hat.
b. Itwas too dirty.
定从： Annawas wearing a hat which/that was too dirty. (主语)
安娜戴了一顶很脏的帽子。
a. The hat was too dirty.
b. Anna was wearing a hat
定从： The hat that/ which Anna was wearing was too dirty.(宾语)
安娜戴着的那顶帽子太脏了。
2). who/whom
a. I meta boy.
b. Theboy can speak three languages.
定从： I met a boy who can speak three languages. (主语)
我见到了一个能说三种语言的男孩儿。
a. Theboy can speak three languages.
b. I met a boy.
定从：The boy whom/ who I met can speak three languages. (宾语)
我见到的男孩儿能说三种语言。
3. whose
a. We saw some people.
b. Their arms had broken.
定从： We saw some people whose arms had broken.
我们看见了一些手臂受了伤的人。
a. The desk belongs to Mary.
b. The leg of the desk is broken.
定从： The deskwhose leg is broken belongs to Mary.
腿坏了的桌子属于玛利。
三、只能使用关系代词that的几种情况。
1. 先行词为all, little, few,much, nothing, something, anything, everything等不定代词时
e.g.There is nothing that I can say
2. 先行词被 all, each, few,much, every, no, some, any 等词修饰时
e.g. I have few books that you needed
3. 先行词既有人又有物时
e.g. He talked about the teachers and schools that he liked
4.先行词被序数词或形容词最高级修饰时
e.g. This is the best composition that I have read.
5. 先行词被the only, the very,the last 等修饰时
e.g. This is the very man that I am looking for.
6. 主句是以who或which开头的疑问句时
e.g. Who is the man that is holding Mary’s hand?
四、非限定性定语从句 Non-restrictive Attributive Clause
1. “位置形式”：紧接先行词，不用标点分割
e.g. I want to buy the house which has agarden.
2. 用逗号与主句隔开，修饰“主句全句或部分内容”，可置句末，中，首。
e.g. I want to buy the house, which has agarden.
The earth is round, which is known to all
As is known to all, the earth is round.
3. “先行词”
限定性： n. / n. phrase
e.g. He wears a red shirt which makes himlike a girl.
非限定性：1). n. / n. phrase
2). the sentence
e.g. He wears a red shirt, which makes himlike a girl.
“关系词的用法”
限定性：1).关系代词作从句宾语时可省
2). that可替who, whom, which(口)
e.g. This is the book( which/that) I boughtyesterday.
非限定性：1).关系词不能用that
2).不能替换，不能省(which, as)
e.g. I like the book, which I bought yesterday
Do you know Tom, whom we talked about?
She has to work on Sundays,which she doesn’t like.
小练习：用 which/that 填空
1. This book of yours, I finished reading last night, was interesting.
2. He said that he was invited, was a lie .
3. This is the first problem he met atthe beginning.
4. The only problem troubled him hasalready been solved.
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