定语从句讲解。
一。定语从句概念。
在复合句中修饰名词或代词的句子。 (在句子中作定语)
二．如何选用定语从句的关系词。
1.首先分清主句和定语从句。
2.确定定语从句的先行词。
3.把先行词带回到定语从句中去，看其在定语从句中做什么语法成分（主语，宾语，定语或状语）
4.若先行词在从句中做主语、宾语或定语则选择关系代词，若在从句中做状语，则选择关系副词。
三。定语从句的结构。
1)①i like music. i can dance to music. (合并相同的部分，用关系词that/which连接)
] that /which.i can dance to 用来修饰music)
jonlin is a singer. she has good voice. (合并相同的部分，用关系词who/which连接)
]who/that.who/that has good voice用来修饰jonlin）
③ the girl is lucy. i talk to lucy.
] (whom)
2）i like music that
先行词关系词定语从句。
四．引导定语从句的关系代词（关系代词的用法）
1. that 既可以用于指人，也可以用于指物。
mary likes music that is quiet and gentle.玛丽喜欢轻柔的**。（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）
用于指物。the building which stands near the train station is a supermarket.（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）
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
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）
练习：i. 单项填空。
1. the man __is speaking is my brother.
a. who b. whom c. what d. which
2. a chemist’s shop is a shop __sells medicine.
a. who b. which c. whose d. what
3. is this the doctor __you talked about yesterday?
a. whom b. which c. when d. what
4. please pass me the box __cover is red.
a. who b. which c. whose d. that
5. i will never forget the dayi joined the army.
a. when b. where c. that which
6. the first english book __i read was “ the prince and the pauper” by mark twain.
a. which b. .that c. who d. when
7. who is the person __is standing at the gate?
a. who b. whom c. that d. which
8. this is the most interesting book __i h**e read.
a. which b. what c. who d. which
9. we depend on the land fromwe get our food.
a. which b. that c. who d. when
10. shanghai is the placei was born.
a. which b. that c. when d. where
、用适当的关系代词that， which， who， whom填空。
1. this is the schooli used to study.
2. i’ll never forget the day __we met each other last week.
3. i live in beijingis the capital of china.
4. the manour teacher is talking with is very tall.
5. this is the house in __lu xun lived.
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