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2026年春仁爱科普版九年级英语下册核心语法精讲精练
Unit 5 China and the World
核心语法:定语从句
一、核心概念
1. 什么是定语从句?
定语:修饰名词或代词的成分
定语从句:用一个完整的句子修饰名词或代词,相当于一个“大形容词”
被修饰的词:先行词(antecedent)
引导词:关系词(在从句中代替先行词并连接主从句)
2. 基本结构:
先行词 + 关系词 + 从句
二、关系代词
关系代词 指代对象 在从句中的作用 例句
who 人 主语、宾语 The girl who is singing is my sister.
whom 人 宾语(可省略) The man (whom) you met is our teacher.
which 物、动物 主语、宾语 The book which is on the desk is interesting.
that 人、物、动物 主语、宾语(万能词) The pen that I lost was found.
whose 人、物、动物 定语(表所属) The boy whose father is a doctor studies hard.
特别注意:
关系代词在从句中作宾语时可省略
关系代词在从句中作主语时不可省略
三、关系副词
关系副词 先行词类型 在从句中的作用 例句
when 时间名词(time, day, year等) 时间状语 I remember the day when we first met.
where 地点名词(place, school, city等) 地点状语 This is the factory where my father works.
why reason 原因状语 That's the reason why I was late.
四、定语从句的类型
1. 限制性定语从句
特点:对先行词起限定作用,不可省略
无逗号与主句隔开
关系词:可用that
例:
People who live in glass houses shouldn't throw stones.
This is the best film that I have ever seen.
2. 非限制性定语从句
特点:对先行词起补充说明作用,可省略
有逗号与主句隔开
关系词:不能用that
例:
My father, who is a teacher, works very hard.
Shanghai, which is a modern city, has changed a lot.
对比:
类型 是否必需 有逗号 关系词
限制性 是 无 that/which/who等
非限制性 否 有 which/who等(不用that)
五、关系词选择三步法
推荐解题步骤:
找先行词:确定被修饰的词
看指代:指人还是指物
判成分:关系词在从句中作什么成分
判断流程图:
六、特殊用法规则
1. 只用that的情况:
先行词为不定代词(all, everything, nothing, something, anything等)
All that can be done has been done.
先行词被序数词或最高级修饰
This is the first book that I bought.
It's the most interesting film that I've seen.
先行词同时包含人和物
They talked about the people and things that they remembered.
先行词被the only, the very, the same修饰
This is the very book that I'm looking for.
2. 不用that的情况:
非限制性定语从句中(用which, who等)
My bike, which I bought last year, is broken.
介词后(用whom, which)
This is the room in which we have meetings.
3. 介词+关系代词结构
两种情况:
关系代词作介词的宾语
The house in which I lived was old.
= The house which/that I lived in was old.
关系代词作动词短语的宾语
This is the pen with which I write.
注意:介词后只能用which或whom,不能用that
七、常见错误提醒
1、关系词重复
The man who he is reading is my teacher.
The man who is reading is my teacher.
2、缺关系词
This is the book I bought it yesterday.
This is the book (that) I bought yesterday.
3、关系词用错
This is the school where I visited last week.
This is the school (which/that) I visited last week.(visit是及物动词)
4、主谓不一致
I, who is your friend, will help you.
I, who am your friend, will help you.
5、介词位置错误
This is the house which I live.
This is the house in which I live.
1.—Can I help you, sir
—I want a new book was written by Cao Wenxuan.
A.what B.where C.which D.who
2.A friend is someone ___________ says, "What! You too I thought I was the only one!"
A.who B.which C.what D.whose
3.I will never forget the day____ we spent in the old town with small houses.
A.who B.whom C.that D.what
4.—Do you know the boy ____is talking to Mr Zhang
—Yes. He is our monitor.
A.which B.who C.whose D.whom
5.—I like music .
—Me, too.
A.that I can sing along
B.that I can sing along with
C.which I can dance
6.Reading is a wonderful thing. It can take you to places ___ you have never visited.
A.where B.which C.what D.who
7.—What are you talking about
—We are talking about the greatest inventions ____ have made a big difference to our daily life.
A.where B.what C.that D.who
8.—Lily, what kind of museum do you like
—I like museums ___________ can provide visitors with free WiFi.
A.what B.that C.who D.where
9. I'll never forget the place ____ we visited together last year.
A.which B.what C.who
10.He was so angry at all I was doing he walked out.
A.that; that B.what; that C.that; what D.which; what
11.The government has spent 10 billion yuan rebuilding Tongguanyao Ancient Town _____ has a long history of over 1000 years as a tourist attraction in Changsha.
A.which B.who C.whose
12. I hate those ____ never give their seats to people in need.
A.which B.who C.they D.what
13.We should give love to the children ________ lost their parents in the accident.
A.which B.whom C.who
14. I still remember the middle school and the students____ I visited in Tibet in few years ago.
A.which B.who C.whom D.that
15.A kind of shared bike ______ is called bluegogo is getting more and more popular in Chengdu.
A.it B.who C.which
16.—Jim, where do you work
— I work for a company _____sells smartphones.
A.which B.where C.what
17.— What are you looking for
— I'm looking for the music CD you lent me yesterday.
A.what B.who C.when D.that
18. —Have you heard of the story of Mulan
—Of course. Mulan is a brave girl ____ her father's place to fight in the army.
A.whom take B.that take C.which takes D.who takes
19.Yesterday I helped an old man _______ lost his way.
A.what B.which C.who D.when
20. —Who is the hero in your mind
—Huang Danian. He is a scientist ____has helped China make great progress in deep-sea exploration(勘探).
A.who B.whom C.which D.where
21.I lost all the money ____my father had given me.
A.that B.which C.whose
22.—Do you know the girl is talking with our teacher
—Oh, she is my sister.
A.which B.what C.whose D.who
23.The photo of lovely children ________ was taken by my friend has won the first prize in the photography competition.
A.who B.which C.what D.whom
24.—Have you found the information about famous people_______ you can use for the report
—Not yet. I'll search some on the Internet.
A.which B.who C.what
25.The Sun Island is the first place almost all the travelers would like to visit when they come to Harbin.
A.which B.what C.that
26.— What books do you like to read best in your free time
— I prefer books _______________. I can learn a lot from their experience,
A.that introduce science history
B.that tell stories of famous people
C.which talk about international policies
D.which show pictures of beautiful nature
27.The Victoria and Albert Museum is the most fantastic museum____ I've ever visited.
A.who B.which C.that D.whom
28.The young man is a friend of mine.
A.who I had a talk B.whom I had a talk with
C.whom I had a talk D.which I had a talk with
29.The Flower Show _______is in Makou of Zhangpu welcomes the visitors from both China and abroad.
A.that B.where C.who
30.Are you interested in the books ___________ are about animals
A.who B.whose C.that D.what
31. This is the most interesting story ____ I have ever heard.
A.that B.which C.who D.whom
32.This is the book ___________ tells many English stories.
A.what B.which C.who D.whom
33.People ______________________ overweight need more water than thin people.
A.who is B.which are C.that is D.who are
34.I like to live in a house ______ is big and bright.
A.that B.who C.how D.where
35.—Do you know the man ____________ spoke at the meeting just now
— No, I don't know.
A.what B.who C.which D.whose
36.— Why do you admire Yuan Longping so much
— Because he is the person helps solve the problem of hunger.
A.which B.who C.what D./
37.A graduation ceremony is a custom takes place students graduate from a school.
A.which; when B.that; who C.which; whose D.that; which
38.Look at that girl _______ name is Lucy.
A.who B.whose C.which D.whom
39.—Could you please have your hair cut as soon as possible
—Why I like my hairstyle ____ it is now.
A.since B.as C.unless D.when
40.Great changes have taken place since then in the factory _______ we are working.
A.where B.that C.which D.there
41.Yuan Longping is a Chinese rice scientist____ is leading a research to develop "sea rice".
A.who B.whom C.which
42. My cousin used to be a postman ____ worked outside for twelve hours a day.
A.which B.whom C.who
43.________ is the man ________ your father is talking to
A.Who, which B.Who, whom C.Whom, which D.Whom, whom
44.— Your devotion ____ worth any.
—Better than a critic ____ hasn't!
A.isn't; which B.doesn't; who
C.isn't; who D.doesn't; which
45.Do you know the way to the restaurant _________ provides Chinese food
A.where B.who C.which D.what
46.The woman built a house herself out of rubbish is an inspiration to us all.
A.whom B.whose C.who D.which
47. This is the girl ____helped me in the supermarket yesterday.
A.who B.which C.whose D.whom
48.—Have you heard of the basketball team__________ won the NBA championship last year
—Of course, it's my favorite basketball team—Warriors.
A.whose B.which C.who
49.Success always belongs to those ____ have tried their best to make their dreams come true.
A.who B.whom C.whose D.which
50.Many people prefer buying cars ________ run on electricity these days.
A.whom B.who C.which D.what
参考答案及试题解析
1.C
【解析】句意:—先生,需要帮忙吗?—我想要一本曹文萱写的新书。这是一个定语从句,先行词a new book表示物,引导词为that或which,所以答案为C。
【点评】考查定语从句,本题涉及关系代词which引导的限制性定语从句。
2.A
【解析】句意:朋友就是说:“什么!你也?我还以为只有我一个呢!”这样的一个人。分析句子结构知,本句是含有定语从句的主从复合句,先行词someone指人,应用关系代词who/ that引导定语从句。故答案为A。
【点评】考查定语从句。注意识记定语从句不同关系代词的用法。
3.C
【解析】句意:我永远不会忘记我们一起在那个有一些小房子的古镇上度过的那一天。根据句意可知,这里是一个定语从句,排除D,what不能引导定语从句。这个定语从句的先行词是the day,故A和B不对,他们引导定语从句时,先行词应该是人。故选C。that是定语从句的引导词,同时又在从句中做spent的宾语。
【点评】考查关系代词。
4.B
【解析】句意:——你认识和张先生说话的那个男孩吗?——是的,他是我们的监督员。A:哪个(指代事物);B:谁(指代人,作主语/宾语);C:谁的(后接名词,作主语/宾语); D:谁(指代人,作宾语)。根据先行词the boy,可知指代人,且在从句中作主语,可知关系词应用who。故选B。
【点评】考查定语从句关系词。注意熟记关系代词who,用于指代人,在从句中作主语,宾语;whom也用于指代人,但在从句中作宾语。
5.B
【解析】句意: ——我喜欢可以跟着唱歌的音乐 。——我也是。根据宾语music 音乐,可知应是可以跟着唱的,应用固定搭配sing/dance along with跟着唱,故选B。
【点评】考查固定搭配。注意熟记固定搭配sing/dance along with跟着唱。
6.B
【解析】句意:读书是一件好事,它能把你带到一个你从来没有参观过的地方。这里考查定语从句,先行词是places;定语从句中缺少句子的宾语,where在定语从句中作状语,故排除A;what不能引导定语从句;who引导定语从句的时,先行词是人的。Which在定语从句中可以作宾语或主语,先行词可以指的是地点的词。故选B。
【点评】考查定语从句引导词的选择,which的先行词为指物的词。
7.C
【解析】句意:——你们在谈论什么?——在谈论给我们的日常生活带来巨大改变的伟大的发明。A哪里,表示地点,B什么,引导宾语从句。C引导定语从句,指代物,D谁,指代人,这是定语从句。先行词是invitations,在从句中做主语。故用that指代物,故选C。
【点评】考查定语从句,注意识记that的用法。
8.B
【解析】句意:——莉莉,你喜欢什么样的博物馆?——我喜欢可以为游客提供免费WiFi的博物馆。定语从句中缺少主语,先行词museum,指代物,故关系代词是that,故选B。
【点评】考查定语从句,注意识记关系代词that的用法。
9.A
【解析】句意:我永远不会忘记我们去年一起参观过的那个地方。结合所给语句I'll never forget the place……we visited together last year.可知,这是一个定语从句。先行词 "the place(地方)" 是物,从句 "we visited together last year" 中,"visited" 是及物动词,缺少宾语,"which" 可以指代 "the place" 在从句中作宾语;what,不能引导定语从句,它主要用于引导名词性从句(如主语从句、宾语从句等);who,引导定语从句时,先行词是人,且在从句中作主语。故答案为A。
【点评】考查定语从句关系词的选择。关键在于判断先行词是人还是物,以及关系词在从句中充当的成分。当先行词为物,且在从句中作宾语时,可用关系代词 which。
10.A
【解析】句意:他对我做的所有事是如此的生气,以至于他走出去了。第一空根据先行词all“所有事”可知,应用that引导定语从句,修饰all。第二空 He was so angry 他是如此生气和 he walked out. 他走出去了,可知应用固定搭配so…that,如此……以至于,that引导结果状语从句。故选A。
【点评】考查定语从句和固定搭配so…that,如此……以至于。
11.A
【解析】句意:政府斥资100亿元重建铜官窑古镇,作为长沙的一个旅游景点,有着1000多年的悠久历史。which哪一个,先行词是物时,关系词用which;who谁,先行词是人时,关系词用who; whose谁的,后面用名词。先行词是Tongguanyao Ancient Town是个地名,指的是物,所以用which,故答案选A。
【点评】考查定语从句,注意根据先行词确定关系词。
12.B
【解析】句意:我讨厌那些从不给有需要的人让座的人。根据句子结构可知这里是缺少定语从句的连接词。排除CD选项,which引导的从句的先行词表示物的名词或代词;who引导的从句的先行词是表示人的名词或代词。根据句意可知这里whose指代的是人,所以用who,故答案为B。
【点评】考查定语从句。识记who引导的定语从句的用法。
13.C
【解析】句意:我们应该爱那些在事故中失去父母的孩子。which指代事物;whom指代人,在从句中作宾语;who指代人。根据 lost their parents in the accident用于修饰名词children,可知这是一个定语从句,先行词是children,指人,且在从句中作主语,关系词用who,故选C。
【点评】考查定语从句。注意熟记先行词指人,且关系词在从句中作主语时,关系词应用who。
14.D
【解析】句意:我仍然记得我几年前在台北参观过的那所中学和那些学生们。A指代物,B指代人,C指代人,D指代人和物,根据the middle school and the students,可知先行词,既有人又有物,故用关系代词that,故选D。
【点评】考查定语从句,注意识记that的用法。
15.C
【解析】考查定语从句的引导词。句意:一种名叫小蓝单车的共享单车在成都越来越受欢迎。先行词bike指物,且在从句作主语,因此从句由which引导。故选C。
16.A
【解析】句意:——Jim,你在哪里工作?——我在为一家卖智能手机的公司工作。这个一个定语从句,a company是先行词,在从句中作了主语,指物,因此关系代词用which,故选A。
【点评】考查定语从句中的关系代词,注意定语从句中关系代词由先行词来决定。
17.D
【解析】此题考查定语从句。先行词为 the music CD 音乐光碟,指物,所以关系代词为which或that。故选D。
【点评】考查名词从句。
18.D
【解析】句意:——你听说过木兰的故事吗?——当然。木兰是一个替父从军的勇敢的女孩儿。" a brave girl ____ her father's place to fight in the army. "是定语从句,先行词是girl,指人,从句中作主语,因此引导词用who,描述客观情况,因此从句用一般现在时,主语girl是第三人称单数,谓语用单三takes,故选D。
【点评】考查定语从句。识记定语从句的结构接用法。
19.C
【解析】句意:昨天我帮助了一位迷路的老人。what可引导名词性从句;which指物,作主语或宾语;who指人,作主语或宾语;when指时间,作状语。分析句子可知,本句是定语从句,先行词是an old man,在从句中作主语,所以关系词用who。故答案选C。
【点评】考查定语从句,注意根据先行词确定关系词。
20.A
【解析】句意:——你心目中的英雄是谁?——黄大年。他是一位帮助中国在深海勘探方面取得巨大进展的科学家。A.who指代人,作主语;B.whom指人,作宾语;C.which指代物,作主语或宾语;D.where在定语从句作状语。根据句子结构分析,句子为定语从句,先行词"scientist"指的是人,在句中作主语,应用who,故选A。
【点评】考查定语从句。注意根据句子结构分析确定句子类型,根据所缺成分确定答案。
21.A
【解析】句意:我把父亲给我的钱全丢了。空处引导定语从句,先行词money,指物,且先行词有all修饰,需用关系代词that引导定语从句。故选A。
【点评】考查定语从句。注意熟记只能使用that不能使用which引导宾语从句的情况。
22.D
【解析】句意:——你认识那个和我们老师谈话的女吗?——噢,她是我的妹妹。which,哪个;what,什么;whose,谁的;who,谁。此句是定语从句,先行词the girl,是人,并且此空作主语,因此关系词用who。which和what通常指物,whose通常指人,但是作定语。故选D。
【点评】考查定语从句。注意定语从句中引导词的选择即要看先行词,又要看在从句中做的成分。
23.B
【解析】句意:我朋友拍的可爱孩子的照片在摄影比赛中得了一等奖。分析句式结构可知was taken by my friend是定语从句,先行词the photo of lovely children,是物,引导词可用which或that,故选B。
【点评】考查定语从句的引导词。
24.A
【解析】句意:——你找到你能用在报告中的有关一些名人的信息了吗?——还没有,我要在网上搜索一些。这个一个定语从句,information是先行词,在从句中作了宾语,指物,因此关系代词用which,故选A。
【点评】考查定语从句中的关系代词,注意定语从句中关系代词由先行词来决定。
25.C
【解析】句意:太阳岛是几乎所有来哈尔滨的游客都想去的第一个地方。根据句子结构这里这里是缺少定语从句的连接词。先行词是place,空格上应填一个代替先行词且在从句中作宾语的关系代词。which在引导的定语从句中作主语或宾语,指代物; what不能引导定语从句;that在引导的定语从句中作主语或宾语,指代人或物。当先行词被序数词所修饰时,用that引导定语从句。故答案是C。
【点评】考查定语从句。识记定语从句不同连接词的用法。
26.B
【解析】句意:——你空闲时最喜欢看什么书?——我喜欢讲名人故事的书。我可以从他们的经历中学到很多。A 介绍科学史的;B 讲名人的故事的;C 哪些是关于国际政策的;D 展示美丽自然的图片的。结合题干中的I can learn a lot from their experience可知,我喜欢读的书是有关名人故事的,故选B。
【点评】考查定语从句的基本结构及用法。
27.C
【解析】句意:维多利亚和阿尔伯特博物馆是我所参观过的最好的博物馆。who, whom引导定语从句时,先行词指人,which,that引导定语从句时,先行词指物,先行词是 museum,指物,在从句中做宾语,关系词用that/which,若前面是形容词的最高级时,只能用that。故选C。
【点评】考查定语从句的关系代词。掌握定语从句关系词的使用规则。
28.B
【解析】句意:和我交谈的那个年轻人是我的一个朋友。短语have a talk with sb和某人交谈;空格处是定语从句,先行词 man是指人的,关系词在定语从句中作介词with的宾语,故选B。
【点评】此题考查定语从句的用法。
29.A
【解析】 where引导从句代替地点,who引导从句代词人,that引导从句代替事物。本句中that引导的定语从句修饰先行词the flower show,句意:在漳浦的马口举行的花展欢迎来自中国和外国的参观者们。故选A。
【点评】考查定语从句的用法。
30.C
【解析】句意:你对关于动物的书感兴趣吗?定语从句中缺少主语,先行词是books,指代物,故关系代词是,that,故选C。
【点评】考查定语从句,注意识记关系代词that的用法。
31.A
【解析】句意:这是我听过的最有趣的故事。A.that关系代词,既可指人也可指物;B.which关系代词,指物;C.who关系代词,指人;D.whom关系代词,指人,who的宾语形式。根据句子结构分析,此处句子为定语从句。定语从句先行词story前面被形容词最高级the most interesting修饰,关系代词只能用that。故选A。
【点评】考查定语从句。注意识记当先行词被最高级修饰时关系词只能用that。
32.B
【解析】句意: 这是一本讲述许多英语故事的书。定语从句中缺少主语,先行词book,指代物,故关系代词是which,故选B。
【点评】考查定语从句,注意关系代词which的用法。
33.D
【解析】句意:超重的人比瘦人需要更多的水。先行词 people指人,且定语从句中缺少主语,因此,用that或者who引导定语从句,排除B项;定语从句中谓语动词由先行词people可知用are。故选D。
【点评】考查定语从句中关系代词的选择及be动词用法。注意识记关系代词which和who的用法,掌握be动词随定语从句中先行词单复数,确定be动词形式。
34.A
【解析】句意:我喜欢住在又大又明亮的房子里。that指代人或物;who指代人;how如何;where指代地点。定语从句从横线开始,到结尾结束,先行词a house房子,是物,从句中缺少主语,用关系代词that或which。故选A。
【点评】考查定语从句,注意识记定语从句关系词的用法。
35.B
【解析】句意:——你认识刚刚在会议上演讲的那个男的吗?——不,我不认识。A.定语从句中关系词没有what;B.先行词是人,关系词用who;C.先行词是物,关系词用which;D.whose后面用名词。先行词man指的是人,所以用who,故选B。
【点评】考查定语从句,注意平时识记先行词及关系词用法,理解句意。
36.B
【解析】句意:—你为什么那么仰慕袁隆平?—因为他是解决了饥饿问题的那个人。先行词person是人,故其定语从句引导词用who,故选B。
37.A
【解析】句意:毕业仪式就是当学生们从学校毕业时,举行的一个习惯仪式。结合语境可知前文先行词custom为下文定语从句的逻辑主语,指物,故引导词用that或者which。下文从句内容为前文动作发生的逻辑时间状语,故引导词用when,当……时候,选A。
【点评】考查定语从句和时间状语从句。能根据句意判断出关系代词和连词。
38.B
【解析】句意:看那个叫露西的女孩。Whose name is Lucy为一定语从句,修饰前面的先行词that girl;定语从句中的主语缺少一个定语即女孩的名字;故选B。
【分析】考查定语从句的引导词。
39.B
【解析】句意:——你能尽快剪头发吗?为什么?我喜欢现在的发型。A.自从;B.正如;C.除非......否则......;D.当......时候。根据句子可知是定语从句,修饰my hairstyle,进一步说明文档头发,即现在的发型,因此用as引导的限制性定语从句,故选B。
【点评】考查定语从句,注意识记as的用法。
40.A
【解析】where是关系副词,表示地点,在定语从句中作地点状语。
【点评】考查定语从句。
41.A
【解析】句意:袁隆平是一个中国水稻科学家,他正在领导研究开发“海洋稻米”。表示“人”,引导词用who,在从句中做主语。先行词是“物”,引导词可以用which。whom在定语从句中做宾语。根据 Yuan Longping is a Chinese rice scientist.袁隆平是一个中国水稻科学家,可知后半句为定语从句,先行词是scientist:科学家,本题缺少的是主语,因此用who来引导,故选A。
【点评】考查定语从句。注意掌握定语从句不同的连接词的用法。
42.C
【解析】句意:我的表兄过去是一名邮递员,他每天在外面工作十二个小时。A引导定语从句,指代物,B引导定语从句指代人作宾语,C引导定语从句指代人作主语,postman是先行词,从句中缺少主语,故用who指代人o,故选C。
【点评】考查who引导的定语从句,注意认真阅读题目和选项,确保理解题目的要求和每个选项的含义。
43.B
【解析】句意:你爸爸正在交谈的那个男人是谁?who做主语,whom做宾语。第一个空问的是那个男的是谁,句子缺少主语,所以用who,第二个空the man是先行词,指人,并且关系词在从句中做to的宾语,所以用whom,故选B。
【点评】考查疑问词辨析和定语从句关系代词的用法。
44.B
【解析】句意:——你的付出毫无价值。——总比一个什么都不做的批评家好。第一个句子,句子时态是一般现在时,主语是不可数名词,worth价值,行为动词,否定结构借助于助动词doesn't;第二个句子是含有定语从句的主从复合句,此处缺少关系词,从句的先行词critic,批评家,指人,关系词用who或that引导,故选B。
【点评】此题考查陈述句的否定结构和定语从句。注意否定句中助动词的使用和定语从句的关系词的使用。
45.C
【解析】句意:你知道能提供中餐的饭店的路吗?根据句子结构这是一个含有定语从句的主从复合句,先行词the restaurant在从句中作主语,指物,关系词用that或which,故选C。
【点评】此题考查定语从句。注意关系词的使用。
46.C
【解析】句意:那个自己用垃圾盖房子的女人对我们所有人都是一种鼓舞。whom谁,定语从句中只能作宾语;whose谁的,定语从句中作定语;who谁,定语从句中作主语或宾语;which哪一个,定语从句中作主语或宾语。根据题干可知,本句为定语从句,先行词是woman,指人,所以应该用who引导定语从句,who指代的部分在从句中做主语,故答案选C。
【点评】考查定语从句,注意根据先行词确定关系词。
47.A
【解析】句意:这是昨天在超市帮我的那个女孩。分析句子结构可知本句是复合句。the girl是名词作先行词指人。从句缺少主语,是定语从句。可知关系代词用who,既做连词又做从句主语。故选A。
【点评】考查定语从句。分析句子结构并判断从句缺少什么成分,找出适当的连词。
48.B
【解析】句意:——你听说过去年赢得NBA总冠军的篮球队吗?——当然听说了,这是我最喜欢的篮球队——勇士队。定语从句所修饰的先行词是basketball team,表示“物”,先行词为“物”时,引导词或关系词用which或that。故选B。
【点评】考查定语从句,注意定语从句的引导词which的用法。
49.A
【解析】句意:成功总是属于那些竭尽全力去实现梦想的人。A引导定语从句,指代人,作主语,B引导定语从句,指代人,作宾语,C引导定语从句,做定语,D引导定语从句,指代物,those是先行词,故指代人,people,根据have tried their best to make their dreams come true,可知从句中缺少主语,故用who,故选A。
【点评】考查定语从句,注意识记who指代人做主语的用法。
50.C
【解析】句意:现在很多人喜欢买电动汽车。whom先行词是人,在句中作宾语;who先行词是人;which先行词是物;what不能引导定语从句。分析句子可知,空处缺少一个引导词引导定语从句,先行词是cars,表示物,所以关系词用which。故选C。
【点评】考查定语从句,首先理解关系词区别,然后根据先行词cars确定关系词。
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