作业帮非限定性定语从句怎么造
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/25 21:34:42
非限定性定语从句怎么造
非限定性定语从句起补充说明作用,缺少也不会影响全句的理解,在非限定性定语从句的前面往往有逗号隔开,如若将非限定性定语从句放在句子中间,其前后都需要用逗号隔开.
种类
①引导非限定性定语从句的关系代词:as,which.
②引导非限定性定语从句的关系副词主要有：when,where.
注意：不能用that作为关系代词的两种情况：①非限定性定语从句；②介词+关系代词
区别
1、as引导的定语从句可以放在句首、句中和句尾,which引导的定语从句可置于句中或句尾.
2、当as后面有“is或was+过去分词”构成的被动语态时,be动词is或was可省略.
3、 as有时也可用作关系代词 .若as在从句中作主语,其引导的句子可以放在句首或句中.但which引导的非限制性定语从句只能放句中.
4、as有正如…一样、按照、正像、因为的意思,所以常用于肯定句,而which则用于肯定,否定都可以
5、在固定结构中使用as 例如：the same … as 、as … as
例句：
1 Dorothy was always speaking highly of her role in the play,which ,of course,made the others unhappy.（从句部分的意思为：这当然使别人不高兴；而不能译为正如使别人不高兴.故用which.）
2 Chongqing is not the same city as we have seen in other places.
常见易错题目及解答方法
1.引导限制性定语从句时,关系代词which可以与that互换；但引导非限制性定语从句时,只能用which.
例1She heard a terrible noise,
______ frightened her.
A.that B.which
C.what D.who
例2She heard a terrible noise
______ frightened her.
A.that B./
C.what D.who
解析：例1意为：“她听到一个可怕的声音,这使她感到恐惧.”that不能用于引导非限制性定语从句,故选B.例2意为：“她听到了一个使她恐惧的可怕声音.”引导修饰noise的限制性定语从句可以用which或that来引导,故选A.
2.先行词为reason时,限制性定语可以用why或for which来引导；非限制性定语从句则只能用for which来引导.
例3I had told them the reason,______ I didn’t attend the meeting.
A.for which B.at which
C.for whom D.why
例4I had told them the reason ______ I didn’t attend the meeting.
A.when B.which
C.why D.for that
解析：例3意为：“我早已把理由告诉他们,于是我没有出席会议.”先行词为reason时,非限制性定语从句应用for which引导,故选A.例4意为：“我已经把为什么没有出席会议的原因告诉他们.”the reason why...是常见搭配,答案为C.
3.引导限制性定语从句的关系代词在从句中担任宾语时可以被省略；但引导非限制性定语从句的关系代词即使作宾语也不能省略.
例5He was eager to go to the hospital to see his stepmother,______ he loved and respected as his own mother.
A.as B.which
C./ D.whom
解析：本句意为：“他急于去医院看望他的继母,他像对待亲生母亲一样孝敬她.”关系代词whom引导非限制性定语从句并作宾语,不能被省略,故选D.
4．引导限制性定语从句时并作从句宾语的关系代词whom可以用who来代替；但在非限制性定语从句中,whom就不能用who替换.
例6Do you know Tom,_____ we talked about?
A.which B.that
C.whom D.who
例7The American journalist ______ the announcer mentioned in the news broadcast is said to have been killed by the gangsters.Which of the following is wrong?
A.who B.whom
C.whose D./
解析：例6意为：“你认识汤姆吗?我们谈到过他.”应选C.例7意为：“播音员在新闻广播中提到的那位美国记者据说已遭歹徒杀害.下列哪一项是错误的?”关系代词作mentioned的宾语且指人时,可用who/whom/that,在限制性定语从句中可省略,故C是错的.
5．当非限制性定语从句修饰整个主句时,其关系代词只能用as ,不能用which.此时非限制性定语从句可置于主句之前、之后或之中.
例8______ I expected,he didn’t believe me.
A.Which B.As
C.That D.When
解析：本句意为：“正如我所预料的那样,他不相信我的话.”非限制性定语从句修饰整个主句,应用as引导,故答案为B.
例9Mary was late for school,______ often happened.
A.as B.for which
C.that D.why
解析：本句意为：“玛丽上学迟到了,这是常有的事.”根据句意,关系代词as引导的非限制性定语从句修饰前面的主句,其位置非常灵活,故答案为A.
6.由“介词+关系代词”引导非限制性定语从句,关系代词指代整个主句时,不能用as,只能用which.
例10He bought the car for more than $20,000,______ his father was angry.
A.about that B.with as
C.when D.with which
解析：本句意为：“他花两万多美元买了这辆车,他父亲对此很生气.”which位于介词with的后面,指代前面的主句,故答案为D.
种类
①引导非限定性定语从句的关系代词:as,which.
②引导非限定性定语从句的关系副词主要有：when,where.
注意：不能用that作为关系代词的两种情况：①非限定性定语从句；②介词+关系代词
区别
1、as引导的定语从句可以放在句首、句中和句尾,which引导的定语从句可置于句中或句尾.
2、当as后面有“is或was+过去分词”构成的被动语态时,be动词is或was可省略.
3、 as有时也可用作关系代词 .若as在从句中作主语,其引导的句子可以放在句首或句中.但which引导的非限制性定语从句只能放句中.
4、as有正如…一样、按照、正像、因为的意思,所以常用于肯定句,而which则用于肯定,否定都可以
5、在固定结构中使用as 例如：the same … as 、as … as
例句：
1 Dorothy was always speaking highly of her role in the play,which ,of course,made the others unhappy.（从句部分的意思为：这当然使别人不高兴；而不能译为正如使别人不高兴.故用which.）
2 Chongqing is not the same city as we have seen in other places.
常见易错题目及解答方法
1.引导限制性定语从句时,关系代词which可以与that互换；但引导非限制性定语从句时,只能用which.
例1She heard a terrible noise,
______ frightened her.
A.that B.which
C.what D.who
例2She heard a terrible noise
______ frightened her.
A.that B./
C.what D.who
解析：例1意为：“她听到一个可怕的声音,这使她感到恐惧.”that不能用于引导非限制性定语从句,故选B.例2意为：“她听到了一个使她恐惧的可怕声音.”引导修饰noise的限制性定语从句可以用which或that来引导,故选A.
2.先行词为reason时,限制性定语可以用why或for which来引导；非限制性定语从句则只能用for which来引导.
例3I had told them the reason,______ I didn’t attend the meeting.
A.for which B.at which
C.for whom D.why
例4I had told them the reason ______ I didn’t attend the meeting.
A.when B.which
C.why D.for that
解析：例3意为：“我早已把理由告诉他们,于是我没有出席会议.”先行词为reason时,非限制性定语从句应用for which引导,故选A.例4意为：“我已经把为什么没有出席会议的原因告诉他们.”the reason why...是常见搭配,答案为C.
3.引导限制性定语从句的关系代词在从句中担任宾语时可以被省略；但引导非限制性定语从句的关系代词即使作宾语也不能省略.
例5He was eager to go to the hospital to see his stepmother,______ he loved and respected as his own mother.
A.as B.which
C./ D.whom
解析：本句意为：“他急于去医院看望他的继母,他像对待亲生母亲一样孝敬她.”关系代词whom引导非限制性定语从句并作宾语,不能被省略,故选D.
4．引导限制性定语从句时并作从句宾语的关系代词whom可以用who来代替；但在非限制性定语从句中,whom就不能用who替换.
例6Do you know Tom,_____ we talked about?
A.which B.that
C.whom D.who
例7The American journalist ______ the announcer mentioned in the news broadcast is said to have been killed by the gangsters.Which of the following is wrong?
A.who B.whom
C.whose D./
解析：例6意为：“你认识汤姆吗?我们谈到过他.”应选C.例7意为：“播音员在新闻广播中提到的那位美国记者据说已遭歹徒杀害.下列哪一项是错误的?”关系代词作mentioned的宾语且指人时,可用who/whom/that,在限制性定语从句中可省略,故C是错的.
5．当非限制性定语从句修饰整个主句时,其关系代词只能用as ,不能用which.此时非限制性定语从句可置于主句之前、之后或之中.
例8______ I expected,he didn’t believe me.
A.Which B.As
C.That D.When
解析：本句意为：“正如我所预料的那样,他不相信我的话.”非限制性定语从句修饰整个主句,应用as引导,故答案为B.
例9Mary was late for school,______ often happened.
A.as B.for which
C.that D.why
解析：本句意为：“玛丽上学迟到了,这是常有的事.”根据句意,关系代词as引导的非限制性定语从句修饰前面的主句,其位置非常灵活,故答案为A.
6.由“介词+关系代词”引导非限制性定语从句,关系代词指代整个主句时,不能用as,只能用which.
例10He bought the car for more than $20,000,______ his father was angry.
A.about that B.with as
C.when D.with which
解析：本句意为：“他花两万多美元买了这辆车,他父亲对此很生气.”which位于介词with的后面,指代前面的主句,故答案为D.