【步步高】高考英语大一轮复习定语从句课件人教
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to fame. (2)在限制性定语从句中，当介词位于定语从句的末尾时，
可用that/which(指物)，that/whom/who(指人)作介词的宾语，而 且作介词宾语的关系代词可以省略。
(3)“复合介词短语＋关系代词which”引导的定语从句，这 种结构引导的定语从句常与先行词用逗号分开，定语从句常用倒 装语序。
2．who，whom和whose的用法 当先行词指人，在定语从句中作主语时，用who，不可省 略；在定语从句中作宾语时，用whom/that，可以省略；在定语 从句中作定语时，用whose，不可省略。
She is the girl who lives next door. That’s the girl (whom/that) I teach.
He lived in a big house，in front of which stood a big tall
apple tree. (4)介词＋which/whom＋不定式结构。
The poor man has no house in which to live. ＝The poor man has no house to live in. ＝The poor man has no house in which he can live.
②当动词短语中的介词提前时，只用which，不用that。
This is a house in which Lu Xun once lived. 注意：在一些固定搭配的动词短语中，由于动词和介词不可 分割，因此不能把介词置于关系代词之前。 This is the pen (which/that) I’m looking for. 不可以说：This is the pen for which I’m looking.
than we could expect.
(2)当非限制性定语从句放在主句前面时，只能用as。 As is known to everybody，the moon travels round the earth
once every month. ＝The moon travels round the earth once every month，
4．as和which的区别 (1)as引导的非限制性定语从句，既可在主句前，又可在主句 后，有时还可插入主句中，而which引导的非限制性定语从句只 能置于主句之后。相同的是两者都可替代主句的整个内容，而不 是主句中的某一个词。 The weather turned out to be very good，which was more
as/which is known to everybody. ＝It is known to everybody that the moon travels round the
earth once every month. ＝What is known to everybody is that the moon travels
Shanghai is no longer the city that it used to be.
(2)定语从句中必须用which的情况： ①在非限制性定语从句中，只用which，不用that。
Helen was much kinder to her youngest son than to the others，which，of course，made the others envy him.
⑥当主句的主语是疑问词who或which时。 Which is the bike that you lost? ⑦有两个定语从句时，其中一个关系代词已用which，另外 一个宜用that。 They secretly built up a small factory，which produced things that could cause pollution. ⑧当先行词在主句中作表语，而关系代词也在从句中作表语 时。
定语从句
一、关系代词的用法 1．that和which的用法 (1)限制性定语从句中，必须用关系代词that的情况： ①当先行词是不定代词all，much，little，something， everything，anything，nothing，none，the one时。
You should hand in all that you have. ②当先行词前面被the only，the very，any，few，little， no，all等词修饰时。
round the earth once every month.(后两句属名词性从句范畴。)
另外，as多用于下列习惯用语中： as anybody can see正如人人都能看到的那样 as we had expected正如我们所预料的那样 as often happens正如经常发生的那样 as has been said before如上所述 as is mentioned above正如上面提到的
This is the only thing that行词的前面有形容词最高级 修饰时。
This is the best that has been used against pollution. ④当先行词是序数词或它前面有序数词修饰时。 This train is the last that will go to Suzhou. ⑤当先行词既有人又有物时。 Do you know the things and persons that they are talking about?
3．“介词＋关系代词”引导的定语从句 “介词＋关系代词”引导定语从句时，关系代词只能用 which(指物)或whom(指人)，即：介词＋which/whom。 (1)当介词放在关系代词的前面时，关系代词只能用which或 whom，且不能省略。 They may start as a group of high-school students，for whom practising their music in someone’s house is the first step
可用that/which(指物)，that/whom/who(指人)作介词的宾语，而 且作介词宾语的关系代词可以省略。
(3)“复合介词短语＋关系代词which”引导的定语从句，这 种结构引导的定语从句常与先行词用逗号分开，定语从句常用倒 装语序。
2．who，whom和whose的用法 当先行词指人，在定语从句中作主语时，用who，不可省 略；在定语从句中作宾语时，用whom/that，可以省略；在定语 从句中作定语时，用whose，不可省略。
She is the girl who lives next door. That’s the girl (whom/that) I teach.
He lived in a big house，in front of which stood a big tall
apple tree. (4)介词＋which/whom＋不定式结构。
The poor man has no house in which to live. ＝The poor man has no house to live in. ＝The poor man has no house in which he can live.
②当动词短语中的介词提前时，只用which，不用that。
This is a house in which Lu Xun once lived. 注意：在一些固定搭配的动词短语中，由于动词和介词不可 分割，因此不能把介词置于关系代词之前。 This is the pen (which/that) I’m looking for. 不可以说：This is the pen for which I’m looking.
than we could expect.
(2)当非限制性定语从句放在主句前面时，只能用as。 As is known to everybody，the moon travels round the earth
once every month. ＝The moon travels round the earth once every month，
4．as和which的区别 (1)as引导的非限制性定语从句，既可在主句前，又可在主句 后，有时还可插入主句中，而which引导的非限制性定语从句只 能置于主句之后。相同的是两者都可替代主句的整个内容，而不 是主句中的某一个词。 The weather turned out to be very good，which was more
as/which is known to everybody. ＝It is known to everybody that the moon travels round the
earth once every month. ＝What is known to everybody is that the moon travels
Shanghai is no longer the city that it used to be.
(2)定语从句中必须用which的情况： ①在非限制性定语从句中，只用which，不用that。
Helen was much kinder to her youngest son than to the others，which，of course，made the others envy him.
⑥当主句的主语是疑问词who或which时。 Which is the bike that you lost? ⑦有两个定语从句时，其中一个关系代词已用which，另外 一个宜用that。 They secretly built up a small factory，which produced things that could cause pollution. ⑧当先行词在主句中作表语，而关系代词也在从句中作表语 时。
定语从句
一、关系代词的用法 1．that和which的用法 (1)限制性定语从句中，必须用关系代词that的情况： ①当先行词是不定代词all，much，little，something， everything，anything，nothing，none，the one时。
You should hand in all that you have. ②当先行词前面被the only，the very，any，few，little， no，all等词修饰时。
round the earth once every month.(后两句属名词性从句范畴。)
另外，as多用于下列习惯用语中： as anybody can see正如人人都能看到的那样 as we had expected正如我们所预料的那样 as often happens正如经常发生的那样 as has been said before如上所述 as is mentioned above正如上面提到的
This is the only thing that行词的前面有形容词最高级 修饰时。
This is the best that has been used against pollution. ④当先行词是序数词或它前面有序数词修饰时。 This train is the last that will go to Suzhou. ⑤当先行词既有人又有物时。 Do you know the things and persons that they are talking about?
3．“介词＋关系代词”引导的定语从句 “介词＋关系代词”引导定语从句时，关系代词只能用 which(指物)或whom(指人)，即：介词＋which/whom。 (1)当介词放在关系代词的前面时，关系代词只能用which或 whom，且不能省略。 They may start as a group of high-school students，for whom practising their music in someone’s house is the first step