定语从句的时态一般不受主句的影响,主要根据具体的语境和意义而定。
例如:
1,The professor who lectured yesterday is from Peking University.
昨天做演讲的教授来自北京大学。(从句运用一般过去时)
2,The professor who is lecturing now is from Peking University.
现在正在演讲的教授来自北京大学。(从句运用现在进行时)
3,The professor who will lecture tomorow is from Peking University.
明天要来演讲的教授来自北京大学。(从句运用一般将来时)
扩展资料:
判断关系代词与关系副词
1,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。例如:
(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。
2,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.先行词在从句中作主、定、宾语时,应选择关系代词;先行词在从句中作状语时,应选 择关系副词。例如:
(对)Is this the museum which you visited a few days ago?
(对)Is this the museum where the exhibition was held?
参考资料来源:百度百科——定语从句
定语从句的时态要与主句时态保持一致,也就是说,主句的时态是什么,定语从句的时态就是什么。
定语从句:
1.定语从句:修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。
2.先行词:被定语从句修饰的词叫先行词。
3.关系词:引导定语从句的词叫关系词。
关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等;关系副词有when, where, why等。
关系词通常有下列三个作用:A、引导定语从句;B、代替先行词;C、在定语从句中担当一个成分。例如:
The man who is shaking hands with my father is a policeman. 该句中,who is shaking hands with my father 是定语从句,修饰先行词the man, “who”是引导定语从句的关系词,代替先行词the man,在定语从句中作主语。
扩展资料:
关系词常有3个作用:
①连接作用,连接主句和定语从句。
②指代先行词。
③在定语从句中担当成分。
注:关系代词有主语、宾语、定语之分。一般who做主语或其宾格形式的whom做宾语(whom作宾语时可省略),whose作为定语(whose不可省略)。关系代词在从句中作主语,宾语,定语等,关系副词在从句中作地点状语(where),时间状语(when),原因状语(why)。
定语用来限定、修饰名词或代词,是对名词或代词起修饰、限定作用的词、短语(动词不定式短语、分词短语)汉语中常用“……的”表示。
主要由形容词担任,此外,名词、代词、数词、分词、副词、不定式以及介词短语也可以来担任,也可以由一个句子来担任。单词作定语时通常放在它所修饰的词之前,作前置定语。短语、从句作定语时则放在所修饰的词之后,作后置定语。
被定语从句修饰的名词、代词称为先行词。如“the girl”,“the book”
如:She is the girl who likes singing. 她就是那个喜欢唱歌的女孩。
这就是一个定语从句。
特殊情况:有六种情况只可用that:
(1)不定代词 anything, nothing, everything,all,much,few,any,little为先行词时;
Finally, the thief handed everything that he had stolen to the police. 最终,小偷偷的所有东西全部交给了警察。
(2)先行词为 the only, the very, the just时;
He is the very man that helped the girl out of the water. 他从水中救起了那个女孩。
(3)先行词为序数词、数词、形容词或最高级时;
The first English book that I read was "The Prince and the Pauper" by Mark Twain. 我读的第一本书是马克·吐温写的《王子与贫儿》。
(4)先行词既有人又有物时;
He talked about the teachers and school that he visited. 他在讲他以前访问过的学校和老师。
(5)当主句是以who或which开始的特殊疑问句时,为避免重复用that;
Who is the person that is standing at the gate? 那个站在门口的人是谁?
(6)关系代词作表语时;
He is not the man that he used to be. 他以前不是这样的人。
注:which在定语从句中指物,可作主语或及物动词或介词的宾语,作宾语时可省略;that在定语从句中既可指人又可指物,在定语从句中作主语、宾语和表语,作宾语时可省略,指人时,相当于who或whom,指物时,相当于which,作介词宾语时,介词不可提到that前,当介词提前时,需要用which或whom来代替。
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。在非限制性定语从句的前面往往有逗号隔开,如
(1)The house,which I bought has a lovely garden. 我买的房子带着个漂亮的花园。
(2)This novel, which I have read three times, is very touching. 这本我已经读过三遍的小说很感人。
1.非限定性定语从句可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:
(1)He seems not to have grasped what I meant, which greatly upsets me.他似乎没理解我的意思,这使我心烦。
(2)Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽,这就叫做蒸发。
2. 在非限定定语从句中,有时as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,也可以放在句中。例如:
(1)The boy has as much progress as we had expected. 正像我们所预料的那样,这个男孩取得了大的进步。
(2) As everyone knows ,China is a beautiful country with a long history . 每个人都知道,中国是一个有着悠久历史的美丽国家。
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