A beautiful girl. A naughty boy
She is a girl.
The girl is beautiful.
She is a girl
(who is very beautiful.)
（what he said）is true All（ that he said） is true.
第二步：把这个从句盖上，看它在主句中的语法功能，从 而判断从句的性质。 第三步：把从句打开，添上合适的连词。注意添连词看从 句。因为从句性质不一样。
1. That he wants a book is certain. 2.Please tell me who your monitor is.
3.The news that Tom would go abroad is told by him.
4.The news that he told me is surprising. 5. That is the bike that /which I bought yesterday . 6.That is what I bought yesterday. 7.Anybody who breaks the law should be punished . 8.Make a mark where you have questions .
1）人：who（主） whom（宾）,that 2) 物：which, that, 3）人/物的：whose（定语）
见到：what, how, ----ever 要排除
Who I have two sisters _______are a teacher.
Whom,/ This is my mother ________I love very much.
which/ that I have a necklace___________ is expensive.
whose That is my teacher_______dress is bule.
1）先行词被 ①形容词最高级 This is the most interesting film that I’ve ever seen ②序数词 This is the first American film that you have seen? ③the only, the very修饰时 The only thing that we can do is to give you some money. 2）先行词为all、much、little、none、few、one、 something、anything等不定代词时。 Do you have anything that you want to do? 3）先行词中既有人又有物时。 Do you know the things and persons that they are talking about?
原因why=for +which 1. I still remember the day when (on which) I first came to BeiJing
2. Can you tell me the office where( in which) he works?.
3. Do you know the reason why (for which) he is absent?
The accident had reached to a point where both their parents are to be called in.
I can think of many cases where students obviously know a lot of English words and expressions but couldb’t wtite a good essay.
只能用：which/ whom 1. In the dark street, there wasn’t a single person to whom she could turn for help.
2. I bought a book, the price of which was high.
3. This is the pen that/ which/ “/” I wrote the letter with.
(2008上海卷38) We went through a period ______communications were very difficult in the rural areas. A.which B.whose C. in which D. with (2008福建31) By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, ____ appeared a rare rainbow soon. A. of which B. on which C. from which D.above (2008湖南31) the growing speed of a plant is influenced by a number of factors, _ are beyond our control. A.most of them B. most of which C. most of what D. most of that
四 限制性定语从句 VS. 非限制性定语从句 I have a brother who has six children.
I have a brother, who has six children.
As在限制/ 非限制 定语从句用法
He is not the same man as he was. It is sold at such a low price as people expected. 非限制性定语从句:as / which 的区别
非限制性定语从句as / which 的区别
which只能用于主句之后 2. as只能修饰整个句子的先行词 which既能修饰句子，又能修饰名词。
which I bought a pen _______ is five yuan.
I bought a pen__________made me happy Which/as
3. As 常用在以下结构中：
1.as is well-known
2.as often happens
3.as has been said before 4.as has been pointed
5.as mighted be expected
(2005浙江17) ______ I explained on the phone, your request will be considered at the next meeting. A. When C. As B. After D. Since
先行词为one of+名词复数，定从：复数 先行词为the only/the very one of+名词复数 定从：单数
1.He is one of the students have who______(have) passed the exam.
2. He is the only one of the students has who_______(have) passed the exam.
am 3. I, who_____(be) very busy, can’t help them at the moment. is 4.The idea, which I think______(be) reasonable, was brought up by Professor Li
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