Lecture 24,Attributive Clause
? 定语从句 /关系分句（ Attributive/Relative Clauses）
在句中做定语，修饰一个名词或代词，被修饰
的名词,词组或代词即先行词。定语从句通常出
现在先行词之后，由关系词（关系代词或关系
副词）引出。
? 关系代词有,who,whom,whose,that,which等 。
? 关系副词有,when,where,why等。
? 1 关系代词引导的定语从句
? 关系代词所代替的先行词是人或物的名词或代
词，并在句中充当主语、宾语、定语等成分。
关系代词在定语从句中作主语时，从句谓语动
词的人称和数要和先行词保持一致。
? 1） who,whom,that
? 这些词代替先行词是人的名词或代词, 在从句中所起作用如下：
? Is he the man who/that wants to see you?
? 他就是你想见的人吗？ （ who/that在从句中作主语 ）
? He is the man whom/ that I saw yesterday,
? 他就是我昨天见的那个人。（ whom/that在从句中作宾语）
? 注意,
? i,who 的前行词必须是人, 在从句中可以担任主语, 往往也可
以代替在从句中担任宾语的 whom,但是它前边不能有介词, 如
果带了介词就必须用宾格的 whom（ 介词 +whom）
? This is the teacher who teaches us mathematics,
? She is the girl who (whom) I met at the party,（ 可以替代 ）
? She is the girl whom (who) I went there with,（ 可以替代 ）
? She is the girl with whom I went there,（ 不可替代）
? ii,who,that在很多情况下可以通用, 但是有些情况只能用 who,
? A,先行词是 one,ones,anyone的时候宜用 who,
? One who has nothing to fear for oneself dares to tell the truth,
? The ones who flatter me don’t please me,
? Don’t tell anyone about the news who oughtn’t to know it,
? Anyone who fails to finish the task given should be criticized,
? B,先行词为 those的时候, 宜用 who为关系代词
? Those who were not fit for their work could not see the beautiful clothes made of
the magic cloth,
? Those who want to go to the Great Wall sign up here,
? C,当先行词有比较长的后置定语的时候
? I met a foreigner in the street yesterday who could asked me questions in Chinese,
? D,一个句子中带有两个定语从句, 其中一个定语从句的关系代词为 that,另一
个则用 who,
? The boy that you met last night is the group leader who studies very hard,
? E,在 there be 开头的句子中
? There is an old man who wants to see you,
? There are many young men who are against him,
? 2) whose 用来指人或物, (只用作定语,若指物, 它还可以同 of
which互换 ),例如,
? They rushed over to help the man whose car had broken down,那
人车坏了, 大家都跑过去帮忙 。
? Please pass me the book whose (of which) cover is green,请递给我
那本绿皮的书 。
? 3) which,that
? 它们所代替的先行词是事物的名词或代词, 在从句中可作主语,
宾语等, 例如,
? A prosperity which / that had never been seen before appears in the
countryside,农村出现了前所未有的繁荣 。 （ which / that在句中作
宾语 ）
? The package (which / that) you are carrying is about to come
unwrapped,你拿的包快散了 。 (which / that在句中作宾语 )
? 关系代词 that 和 which 的用法比较
? 关系代词 that和 which均可指代先行词是事物的名词或代词, 此
时两者可互换, 但有时 that和 which的使用场合并不相同 。 具体
介绍如下,
? 关系代词 that的使用
? 1.先行词是 all,anything,everything,nothing等,关系代词应用 that
? That's all that I know,
? 2.先行词前有 the only,the same,the very或 no,little,much,any,
every,all等修饰时,关系代词应用 that
? This is the only reason that I can say,
? 3.先行词前有序数词或形容词最高级修饰时,关系代词常用 that
? The first thing that we should do is to help him,
? 4.当先行词同时含有 "人 "或 "物 "时,关系代词应用 that
? Can you see a man and his horse that are crossing the bridge?
? 5,在固定结构 the same...that...; so...that...; such...that..,以及 it
is/was...that...的强调句型中,须用 that
? This is the same museum that you once visited,
? 6.如主句以 there be开头时,关系代词应用 that
? There is a house that has two windows,
? 7.当一个句子中含有两个定语从句时,如前一个已用关系代词
which,后一个关系代词宜用 that,避免重复?但两个定语从句的结
构如果平行,应重复同一个关系代词
? I'll borrow a book which tells about the heroic deeds that the PLA did
in the battles against the invaders,
? He told me to read a book that is very short,and that is very
interesting,
? 8,that还可引导同位语从句,which则不能
? He told me the news that they would come to see me,
? 关系代词 which的使用
? 1.非限制性定语从句中关系代词一般要用 which
? She was awarded a gold medal,which the whole family considered a great honor,
? 2.关系代词前如有介词,关系代词须用 which?如把介词移至句末,可用 that (或省
略 )
? There's only one problem about which they disagree,
? This is the book(that)she was looking for,
? 3.如果先行词是 that,关系代词应用 which
? I have that which you gave me,
? 4.如先行词和定语从句之间被其它较长的成分分隔,常用 which
? Larry told her the story of the young airman which I narrated at the beginning of
this book,(先行词为 story)
? 5.在 "those+复数形式的名词 "结构中,其后的关系代词多用 which
? A shop should keep a stock of those goods which sell best,
? 6.一个句子中如有两个定语从句,第一个定语从句用了关系代词 that,第二个
从句中的关系代词宜用 which,但在平行结构中,应重复同一个关系代词
? This is the book that you bought which you have lost,
? I have a house which is located on the hillside,which faces the south,
? 2 关系副词引导的定语从句
? 关系副词可代替的先行词是时间, 地点或理由的名词,
在从句中作状语 。
? 1)when,where,why
? 关系副词 when,where,why的含义相当于 "介词 + which"
结构, 因此常常和 "介词 + which"结构交替使用, 例如：
? There are occasions when (on which) one must yield,任
何人都有不得不屈服的时候 。
? Beijing is the place where (in which) I was born,北京是
我的出生地 。
? Is this the reason why (for which) he refused our offer?
这就是他拒绝我们帮助他的理由吗？
? 3 判断关系代词与关系副词
? 方法一,用关系代词, 还是关系副词完全取决于从句中的谓语
动词 。 及物动词后面无宾语, 就必须要求用关系代词；而不及
物动词则要求用关系副词 。 例如,
? This is the mountain village where I stayed last year,
? I'll never forget the days when I worked together with you,
? 判断改错,
? （ 错 ） This is the mountain village where I visited last year,
? （ 错 ） I will never forget the days when I spent in the countryside,
? （ 对 ） This is the mountain village (which) I visited last year,
? （ 对 ） I'll never forget the days (which) I spent in the countryside,
? 习惯上总把表地点或时间的名词与关系副词 where,when联系在
一起。此两题错在关系词的误用上。
? 方法二,准确判断先行词在定语从句中的成分 (主, 谓, 宾, 定,
状 ),也能正确选择出关系代词 /关系副词 。
? 例 1,Is this museum ___ you visited a few days age?
? A,where B,that C,on which D,the one
? 例 2,Is this the museum ____ the exhibition was held,
? A,where B,that C,on which D,the one
? 答案：例 1 D,例 2 A
? 例 1变为肯定句,This museum is ___ you visited a few days ago,
? 例 2变为肯定句,This is the museum ___ the exhibition was held,
? 在句 1中, 所缺部分为宾语, 而 where,that,on which都不能起到宾语的作用,
只有 the one既做了主句的表语, 又可做从句的宾语, 可以省略关系代词, 所
以应选 D。
? 而句 2中,主, 谓, 宾俱全, 从句部分为句子的状语表地点, 既可用副词 where，
又因 in the museum词组, 可用介词 in + which 引导地点状语 。 而此题中, 介
词 on 用的不对, 所以选 A。
? 关系词的选择依据在从句中所做的成分, 先行词在从句中做主, 定, 宾语时,
选择关系代词 (who,whom,that,which,whose)； 先行词在从句中做状语时,
应选择关系副词 ( where 地点状语, when 时间状语, why 原因状语 ) 。
? 4 限制性和非限制性定语从句
? 1) 定语从句有限制性和非限制性两种 。 限制性定语从句是先行
词不可缺少的部分, 去掉它主句意思往往不明确；非限制性定
语从句是先行词的附加说明, 去掉了也不会影响主句的意思,
它与主句之间通常用逗号分开, 例如,
? This is the house which we bought last month,这是我们上个月买
的那幢房子 。 （ 限制性 ）
? The house,which we bought last month,is very nice.这幢房子很漂
亮, 是我们上个月买的 。 （ 非限制性 ）
? 2) 当先行词是专有名词或物主代词和指示代词所修饰时, 其后
的定语从句通常是非限制性的, 例如,
? Charles Smith,who was my former teacher,retired last year,查理 ·史
密斯去年退休了, 他曾经是我的老师 。
? My house,which I bought last year,has got a lovely garden,我去
年买的的那幢房子带着个漂亮的花园 。
? 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 。
? 3) 非限制性定语从句还能将整个主句作为先行词,对其进行修饰,
这时从句谓语动词要用第三人称单数, 例如,
? He seems not to have grasped what I meant,which greatly upsets me,
他似乎没抓住我的意思, 这使我心烦 。
? Liquid water changes to vapor,which is called evaporation,液态水
变为蒸汽, 这就叫做蒸发 。
? 说明：关系代词 that和关系副词 why不能引导非限制性定语从句。
? 总结：限定性定语从句与非限定性定语从句的区别
? a) 非限定性定语从句和主句的关系不十分密切, 朗读时先行词部分一般用降
调并稍做停顿, 书写的时候多半用逗号分开 。
? b) 非限定性定语从句能够修饰整个句子, 限定性定语从句则不能 。
? c) 非限定性定语从句与限定性定语从句的含义不一样, 限定性定语从句是确
指, 而非限定性定语从句是泛指 。
? d) 先行词为专有名词或者具有特指对象的名词时, 一般要用到非限制性定语
从句 。
? e) 在非限定性定语从句中, 现行词指人的时候, 关系代词只能是 who,whom，
不能用 that； 先行词指物的时候, 关系代词只能用 which,不能用 that。
? 5 介词 +关系词
? 1） 介词后面的关系词不能省略 。
? 2） that前不能有介词 。
? 3） 某些在从句中充当时间, 地点或原因状语的 "
介词 +关系词 "结构可以同关系副词 when 和 where
互换 。
? This is the house in which I lived two years ago,
? This is the house where I lived two years ago,
? Do you remember the day on which you joined our
club?
? Do you remember the day when you joined our club?
? 6 as,which 引导非限定性定语从句
? 由 as,which 引导的非限定性定语从句, as和 which可代整个主句,
相当于 and this或 and that。 As一般放在句首, which在句中 。
? As we know,smoking is harmful to one's health,
? The sun heats the earth,which is very important to us,
? 典型例题
? 1） Alice received an invitation from her boss,___came as a surprise,
A,it B,that C,which D,he
? 答案 C,此为非限定性从句, 不能用 that修饰, 而用 which.,it 和
he 都使后句成为句子, 两个独立的句子不能单以逗号连接 。 选
he句意不通 。
? 2） The weather turned out to be very good,___ was more than we
could expect,
A,what B,which C,that D,it
? 答案 B。 which可代替句子, 用于非限定性定语从句, 而 what不
可 。 That 不能用于非限定性定语从句, it不为连词, 使由逗号连
接的两个句子并在一起在英语语法上行不通 。
? 注意,
? as 和 which在引导非限制性定语从句时, 这两个关系代
词都指主句所表达的整个意思, 且在定语从句中都可
以作主语和宾语 。 但不同之处主要有两点,
? (1) as 引导的定语从句可置于句首, 而 which不可 。
? (2) as 代表前面的整个主句并在从句中作主语时, 从句
中的谓语必须是系动词；若为行为动词, 则从句中的
关系代词只能用 which.。
? 3） It rained hard yesterday,____ prevented me from going
to the park,
A,that B,which C,as D,it
? 在本题中, prevent由于是行为动词, 所以正确选项应
为 B。
? As 的其它用法
? 例 1,the same… as； such… as 中的 as 是一种固
定结构,和 …… 一样 …… 。
? I have got into the same trouble as he (has),
? 例 2,as可引导非限制性从句, 常带有 ‘正如 ’的意
思 。
? (1) As we know,smoking is harmful to one's health,
? (2) As is know,smoking is harmful to one's health,
? As是关系代词。 (1) 中的 as作 know的宾语； (2)
中，它充当从句的主语，谓语动词 know要用被
动式。
? 7 定语从句注意事项
? a) one of + 复数名词 +关系代词 +复数型动词
? the (only) one of + 复数名词 +关系代词 +单数型
动词
? The Great Wall is one of the world-famous
buildings that draw lots of visitors,
? Titanic is the (only) one of the most wonderful
movies that has been produced in Hollywood,
? b) What不能用于定语从句中。
Exercises for Relative Clause
Homework
? Exercise 33A on Pages 573-574
? Exercise 33B on Pages 579-580
? Exercise 33C on Pages 582-583
? Exercise 33D on Pages 585-586
? 预习 第 35讲 （ 603-620页）
? 定语从句 /关系分句（ Attributive/Relative Clauses）
在句中做定语，修饰一个名词或代词，被修饰
的名词,词组或代词即先行词。定语从句通常出
现在先行词之后，由关系词（关系代词或关系
副词）引出。
? 关系代词有,who,whom,whose,that,which等 。
? 关系副词有,when,where,why等。
? 1 关系代词引导的定语从句
? 关系代词所代替的先行词是人或物的名词或代
词，并在句中充当主语、宾语、定语等成分。
关系代词在定语从句中作主语时，从句谓语动
词的人称和数要和先行词保持一致。
? 1） who,whom,that
? 这些词代替先行词是人的名词或代词, 在从句中所起作用如下：
? Is he the man who/that wants to see you?
? 他就是你想见的人吗？ （ who/that在从句中作主语 ）
? He is the man whom/ that I saw yesterday,
? 他就是我昨天见的那个人。（ whom/that在从句中作宾语）
? 注意,
? i,who 的前行词必须是人, 在从句中可以担任主语, 往往也可
以代替在从句中担任宾语的 whom,但是它前边不能有介词, 如
果带了介词就必须用宾格的 whom（ 介词 +whom）
? This is the teacher who teaches us mathematics,
? She is the girl who (whom) I met at the party,（ 可以替代 ）
? She is the girl whom (who) I went there with,（ 可以替代 ）
? She is the girl with whom I went there,（ 不可替代）
? ii,who,that在很多情况下可以通用, 但是有些情况只能用 who,
? A,先行词是 one,ones,anyone的时候宜用 who,
? One who has nothing to fear for oneself dares to tell the truth,
? The ones who flatter me don’t please me,
? Don’t tell anyone about the news who oughtn’t to know it,
? Anyone who fails to finish the task given should be criticized,
? B,先行词为 those的时候, 宜用 who为关系代词
? Those who were not fit for their work could not see the beautiful clothes made of
the magic cloth,
? Those who want to go to the Great Wall sign up here,
? C,当先行词有比较长的后置定语的时候
? I met a foreigner in the street yesterday who could asked me questions in Chinese,
? D,一个句子中带有两个定语从句, 其中一个定语从句的关系代词为 that,另一
个则用 who,
? The boy that you met last night is the group leader who studies very hard,
? E,在 there be 开头的句子中
? There is an old man who wants to see you,
? There are many young men who are against him,
? 2) whose 用来指人或物, (只用作定语,若指物, 它还可以同 of
which互换 ),例如,
? They rushed over to help the man whose car had broken down,那
人车坏了, 大家都跑过去帮忙 。
? Please pass me the book whose (of which) cover is green,请递给我
那本绿皮的书 。
? 3) which,that
? 它们所代替的先行词是事物的名词或代词, 在从句中可作主语,
宾语等, 例如,
? A prosperity which / that had never been seen before appears in the
countryside,农村出现了前所未有的繁荣 。 （ which / that在句中作
宾语 ）
? The package (which / that) you are carrying is about to come
unwrapped,你拿的包快散了 。 (which / that在句中作宾语 )
? 关系代词 that 和 which 的用法比较
? 关系代词 that和 which均可指代先行词是事物的名词或代词, 此
时两者可互换, 但有时 that和 which的使用场合并不相同 。 具体
介绍如下,
? 关系代词 that的使用
? 1.先行词是 all,anything,everything,nothing等,关系代词应用 that
? That's all that I know,
? 2.先行词前有 the only,the same,the very或 no,little,much,any,
every,all等修饰时,关系代词应用 that
? This is the only reason that I can say,
? 3.先行词前有序数词或形容词最高级修饰时,关系代词常用 that
? The first thing that we should do is to help him,
? 4.当先行词同时含有 "人 "或 "物 "时,关系代词应用 that
? Can you see a man and his horse that are crossing the bridge?
? 5,在固定结构 the same...that...; so...that...; such...that..,以及 it
is/was...that...的强调句型中,须用 that
? This is the same museum that you once visited,
? 6.如主句以 there be开头时,关系代词应用 that
? There is a house that has two windows,
? 7.当一个句子中含有两个定语从句时,如前一个已用关系代词
which,后一个关系代词宜用 that,避免重复?但两个定语从句的结
构如果平行,应重复同一个关系代词
? I'll borrow a book which tells about the heroic deeds that the PLA did
in the battles against the invaders,
? He told me to read a book that is very short,and that is very
interesting,
? 8,that还可引导同位语从句,which则不能
? He told me the news that they would come to see me,
? 关系代词 which的使用
? 1.非限制性定语从句中关系代词一般要用 which
? She was awarded a gold medal,which the whole family considered a great honor,
? 2.关系代词前如有介词,关系代词须用 which?如把介词移至句末,可用 that (或省
略 )
? There's only one problem about which they disagree,
? This is the book(that)she was looking for,
? 3.如果先行词是 that,关系代词应用 which
? I have that which you gave me,
? 4.如先行词和定语从句之间被其它较长的成分分隔,常用 which
? Larry told her the story of the young airman which I narrated at the beginning of
this book,(先行词为 story)
? 5.在 "those+复数形式的名词 "结构中,其后的关系代词多用 which
? A shop should keep a stock of those goods which sell best,
? 6.一个句子中如有两个定语从句,第一个定语从句用了关系代词 that,第二个
从句中的关系代词宜用 which,但在平行结构中,应重复同一个关系代词
? This is the book that you bought which you have lost,
? I have a house which is located on the hillside,which faces the south,
? 2 关系副词引导的定语从句
? 关系副词可代替的先行词是时间, 地点或理由的名词,
在从句中作状语 。
? 1)when,where,why
? 关系副词 when,where,why的含义相当于 "介词 + which"
结构, 因此常常和 "介词 + which"结构交替使用, 例如：
? There are occasions when (on which) one must yield,任
何人都有不得不屈服的时候 。
? Beijing is the place where (in which) I was born,北京是
我的出生地 。
? Is this the reason why (for which) he refused our offer?
这就是他拒绝我们帮助他的理由吗？
? 3 判断关系代词与关系副词
? 方法一,用关系代词, 还是关系副词完全取决于从句中的谓语
动词 。 及物动词后面无宾语, 就必须要求用关系代词；而不及
物动词则要求用关系副词 。 例如,
? This is the mountain village where I stayed last year,
? I'll never forget the days when I worked together with you,
? 判断改错,
? （ 错 ） This is the mountain village where I visited last year,
? （ 错 ） I will never forget the days when I spent in the countryside,
? （ 对 ） This is the mountain village (which) I visited last year,
? （ 对 ） I'll never forget the days (which) I spent in the countryside,
? 习惯上总把表地点或时间的名词与关系副词 where,when联系在
一起。此两题错在关系词的误用上。
? 方法二,准确判断先行词在定语从句中的成分 (主, 谓, 宾, 定,
状 ),也能正确选择出关系代词 /关系副词 。
? 例 1,Is this museum ___ you visited a few days age?
? A,where B,that C,on which D,the one
? 例 2,Is this the museum ____ the exhibition was held,
? A,where B,that C,on which D,the one
? 答案：例 1 D,例 2 A
? 例 1变为肯定句,This museum is ___ you visited a few days ago,
? 例 2变为肯定句,This is the museum ___ the exhibition was held,
? 在句 1中, 所缺部分为宾语, 而 where,that,on which都不能起到宾语的作用,
只有 the one既做了主句的表语, 又可做从句的宾语, 可以省略关系代词, 所
以应选 D。
? 而句 2中,主, 谓, 宾俱全, 从句部分为句子的状语表地点, 既可用副词 where，
又因 in the museum词组, 可用介词 in + which 引导地点状语 。 而此题中, 介
词 on 用的不对, 所以选 A。
? 关系词的选择依据在从句中所做的成分, 先行词在从句中做主, 定, 宾语时,
选择关系代词 (who,whom,that,which,whose)； 先行词在从句中做状语时,
应选择关系副词 ( where 地点状语, when 时间状语, why 原因状语 ) 。
? 4 限制性和非限制性定语从句
? 1) 定语从句有限制性和非限制性两种 。 限制性定语从句是先行
词不可缺少的部分, 去掉它主句意思往往不明确；非限制性定
语从句是先行词的附加说明, 去掉了也不会影响主句的意思,
它与主句之间通常用逗号分开, 例如,
? This is the house which we bought last month,这是我们上个月买
的那幢房子 。 （ 限制性 ）
? The house,which we bought last month,is very nice.这幢房子很漂
亮, 是我们上个月买的 。 （ 非限制性 ）
? 2) 当先行词是专有名词或物主代词和指示代词所修饰时, 其后
的定语从句通常是非限制性的, 例如,
? Charles Smith,who was my former teacher,retired last year,查理 ·史
密斯去年退休了, 他曾经是我的老师 。
? My house,which I bought last year,has got a lovely garden,我去
年买的的那幢房子带着个漂亮的花园 。
? 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 。
? 3) 非限制性定语从句还能将整个主句作为先行词,对其进行修饰,
这时从句谓语动词要用第三人称单数, 例如,
? He seems not to have grasped what I meant,which greatly upsets me,
他似乎没抓住我的意思, 这使我心烦 。
? Liquid water changes to vapor,which is called evaporation,液态水
变为蒸汽, 这就叫做蒸发 。
? 说明：关系代词 that和关系副词 why不能引导非限制性定语从句。
? 总结：限定性定语从句与非限定性定语从句的区别
? a) 非限定性定语从句和主句的关系不十分密切, 朗读时先行词部分一般用降
调并稍做停顿, 书写的时候多半用逗号分开 。
? b) 非限定性定语从句能够修饰整个句子, 限定性定语从句则不能 。
? c) 非限定性定语从句与限定性定语从句的含义不一样, 限定性定语从句是确
指, 而非限定性定语从句是泛指 。
? d) 先行词为专有名词或者具有特指对象的名词时, 一般要用到非限制性定语
从句 。
? e) 在非限定性定语从句中, 现行词指人的时候, 关系代词只能是 who,whom，
不能用 that； 先行词指物的时候, 关系代词只能用 which,不能用 that。
? 5 介词 +关系词
? 1） 介词后面的关系词不能省略 。
? 2） that前不能有介词 。
? 3） 某些在从句中充当时间, 地点或原因状语的 "
介词 +关系词 "结构可以同关系副词 when 和 where
互换 。
? This is the house in which I lived two years ago,
? This is the house where I lived two years ago,
? Do you remember the day on which you joined our
club?
? Do you remember the day when you joined our club?
? 6 as,which 引导非限定性定语从句
? 由 as,which 引导的非限定性定语从句, as和 which可代整个主句,
相当于 and this或 and that。 As一般放在句首, which在句中 。
? As we know,smoking is harmful to one's health,
? The sun heats the earth,which is very important to us,
? 典型例题
? 1） Alice received an invitation from her boss,___came as a surprise,
A,it B,that C,which D,he
? 答案 C,此为非限定性从句, 不能用 that修饰, 而用 which.,it 和
he 都使后句成为句子, 两个独立的句子不能单以逗号连接 。 选
he句意不通 。
? 2） The weather turned out to be very good,___ was more than we
could expect,
A,what B,which C,that D,it
? 答案 B。 which可代替句子, 用于非限定性定语从句, 而 what不
可 。 That 不能用于非限定性定语从句, it不为连词, 使由逗号连
接的两个句子并在一起在英语语法上行不通 。
? 注意,
? as 和 which在引导非限制性定语从句时, 这两个关系代
词都指主句所表达的整个意思, 且在定语从句中都可
以作主语和宾语 。 但不同之处主要有两点,
? (1) as 引导的定语从句可置于句首, 而 which不可 。
? (2) as 代表前面的整个主句并在从句中作主语时, 从句
中的谓语必须是系动词；若为行为动词, 则从句中的
关系代词只能用 which.。
? 3） It rained hard yesterday,____ prevented me from going
to the park,
A,that B,which C,as D,it
? 在本题中, prevent由于是行为动词, 所以正确选项应
为 B。
? As 的其它用法
? 例 1,the same… as； such… as 中的 as 是一种固
定结构,和 …… 一样 …… 。
? I have got into the same trouble as he (has),
? 例 2,as可引导非限制性从句, 常带有 ‘正如 ’的意
思 。
? (1) As we know,smoking is harmful to one's health,
? (2) As is know,smoking is harmful to one's health,
? As是关系代词。 (1) 中的 as作 know的宾语； (2)
中，它充当从句的主语，谓语动词 know要用被
动式。
? 7 定语从句注意事项
? a) one of + 复数名词 +关系代词 +复数型动词
? the (only) one of + 复数名词 +关系代词 +单数型
动词
? The Great Wall is one of the world-famous
buildings that draw lots of visitors,
? Titanic is the (only) one of the most wonderful
movies that has been produced in Hollywood,
? b) What不能用于定语从句中。
Exercises for Relative Clause
Homework
? Exercise 33A on Pages 573-574
? Exercise 33B on Pages 579-580
? Exercise 33C on Pages 582-583
? Exercise 33D on Pages 585-586
? 预习 第 35讲 （ 603-620页）
