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2020初中英语知识点复习:关系代词
关系代词指的是代表先行词,同时在从句中作一定的句子成分。关系代词有主格、宾格和属格之分,并有指人与指物之分。关系代词用来引导定语从句。
1.that既可以用于指人,也可以用于指物。在从句中作主语或宾语,作主语时不可省略,作宾语可省略。例如:
Mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。(that作主语
The coat(that)I put on the desk is blue.我放在桌子上的那件外套是蓝色的。(that作宾语
2.which用于指物,在句中作主语或宾语,作主语不可省略,作宾语可省略。例如:
The building which stands near the train station is a supermarket.位于火车站附近的那座大楼是一家超市。(作主语
The film(which)we saw last night was wonderful.我们昨天晚上看的那部电影很好看。(作宾语
3.who,whom用于指人,who用作主语,whom用作宾语。在口语中,有时可用who代替whom,也可省略。例如:
The girl who often helps me with my English is from England.经常在英语方面帮助我的那个女孩是英国人。(作主语
Who is the teacher(whom)Li Ming is talking to?正在与李明谈话的老师是谁?(作宾语
注意:(1)当定语从句中含有介词,介词放在句末时,who,that,which可省略,但介词在关系代词前时,只能用“介词which/whom”结构。例如:
This is the house in which we lived last year.这是我们去年居住的房子。
Please tell me from whom you borrowed the English novel.请告诉我你从谁那借的这本英文小说。
(2)含有介词的固定动词词组中,介词不可前置,只能放在原来的位置上。例如:
This is the person whom you are looking for.这就是你要找的那个人。
(3)that作介词的宾语时,介词不能放它的前面,只能放在从句中动词的后面。例如:
The city that she lives in is very far away.她居住的城市非常远。
(4)关系词只能用that的情况:
a.先行词被序数词或形容词更高级所修饰,或本身是序数词、基数词、形容词更高级时,只能用that,而不用which.例如:
He was the first person that passed the exam.他是先进个通过诊断的人。
b.被修饰的先行词为all,any,much,many,everything,anything,none,the one等不定代词时,只能用that,而不用which.例如:
Is there anything that you want to buy in the shop?你在商店里有什么东西要买吗
c.先行词被the only,the very,the same,the last,little,few等词修饰时,只能用that,而不用which.例如:
This is the same bike that I lost.这就是我丢的那辆自行车。
d.先行词里同时含有人或物时,只能用that,而不用which.例如:
I can remember well the persons and some pictures that I saw in the room.我能清楚记得我在那个房间所见到的人和一些照片。
e.以who或which引导的特殊疑问句,为避免重复,只能用that.例如:
Who is the girl that is crying?正在哭泣的那个女孩是谁
f.主句是there be结构,修饰主语的定语从句用that,而不用which.例如:
There is a book on the desk that belongs to Tom.桌子上那本书是汤姆的。
(5)关系词只能用which,而不用that的情况:
a.先行词为that,those时,用which,而不用that.例如:
What’s that which is under the desk?在桌子底下的那些东西是什么
b.关系代词前有介词时,一般用which,而不用that.例如:
This is the room in which he lives.这是他居住的房间。
c.引导非限制性定语从句,用which,而不用that.例如:
Tom came back,which made us happy.汤姆回来了,这使我们很高兴。