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定语从句解题三大技巧

2017-06-16来源:和谐英语

定语从句解题三大技巧

技巧一:在解题过程中,首先要正确判断是不是定语从句,若是疑问句要将其恢复为陈述句,尤其注意标点符号、和是否已有并列连词(如but, and)和从属连词如(if, when),还要注意是否是强调结构。如:

1. John invited about 40 people to his wedding, most of ______ are family members.

A. them                      B. that                     C. which                 D. whom

分析:答案为D。注意,定语从句修饰的先行词是people不是wedding,所以不能选C,因为which用于指人;关系代词that不能直接用于介词后作宾语,故排除B;them不是关系代词,不能引导定语从句,故可排除A(注:若在most of前面有并列连词and,则只能选A)。句意为:约翰邀请了40个人来参加他的婚礼,其中大多数都是家属。

注意:假若此题在逗号后加一个连词 and,则答案就不能选 D,而应选 A。

2. He may win the competition, ______ he is likely to get into the national team.

A. in which case          B. in that case            C. in what case         D. in whose case

分析:答案为A。由于两句之间没有并列连词,所以不是并列句,故可排除B和C;虽然which和whose均可引导定语从句,且均可用作定语,但which的意思与指示代词相似,whose的意思与物主代词相似,根据句意,应选A。其实,若空格前有并列连词and,则答案应选B。另外,顺便说一句,in which case是非限制性引导定语从句的惯用表达。又如:

My father may have to go into hospital, in which case I won’t be going on holiday. 我父亲可能要住院,如果那样我就不去度假了。

He won’t want to eat it unless he’s really hungry, in which case he’ll eat almost anything. 除非很饿,否则他不会吃东西,一旦饿了,他几乎什么都吃。

Of course it may rain, in which case we'll have to hold the ceremony indoors. 当然可能会下雨,如果那样的话,我们就只能在室内举行仪式了。

She may have missed the train, in which case she won’t arrive for another hour. 她可能没赶上火车,要是那样的话,她可能还等一个小时才会到。

技巧二:在确定是定语从句后,就要找准先行词,看它是指人还是指物,是时间还是地点。如:

The museum will open in the spring with an exhibition and a viewing platform ______ visitors can watch the big glasshouses being built.

A. what                    B. where                   C. when                      D. why

分析:答案为B。定语从句中不缺少主干成分,且先行词platform指地点,故选关系副词where。句意为:博物馆将在春季开放,到时会举行展览并设置景观台,供参观者观看这座大型的玻璃暖房施工建设。

技巧三:要弄清先行词在定语从句中作什么成分。最后,再根据关系词各自的用法特点去确定恰当的关系词。如:

Happiness and success often come to those ______ are good at recognizing their own strengths.

A. whom                    B. who                     C. what                     D. which

分析:答案为B。who在此引导定语从句,修饰代词those(那些人),同时who在定语从句中用作主语。由于what不是关系代词,不能引导定语从句,故可排除C;关系代词which只用于指物,不用于指人,故排除D;whom虽然可以用于指人,但它是宾格,不能用作主语,故排除A。句意为:幸福和成功通常属于那些善于发现自己长处的人。