1. This is the gentleman who helped me out of the trouble.2. The building which stands near the river is our school.3. Do you know the boy whose bicycle was broken just now?4. The farm (that)we visited last Sunday was located in the suburbs of Beijing.定语从句：修饰名词或代词对其启到限定作用 的句子。被定语从句修饰的名词或代词叫先行 词。引导定语从句的词叫关系代词以及关系副 词（when/ where/ why)指代对对象人事物人物共 存 主格Who/ that That/ whichthat宾宾格Who(m)/that That/which that所有whoseWhose/of which1. The boy _ we saw yesterday was Johns brother.2. Do you know the name of the hotel _ windows we can see here?3. Is she the girl _ sells newspapers?Who& that下列情况中只能使用who1 当先行词是one,ones,anyone或thoseAnyone who does that must be mad.Those who dare to break the law will be punished.2 用在there be 结构中 先行词做表语There is a young man who wants to see you.3 为避免重复或引起歧义The man that spoke at the meeting is our headmaster who has just come from Shanghai.4 先行词是 I, you, he , they等He who plays with fire gets burned.5 先行词是指成员的集合名词The family, who lives upstairs, are fond of music.7 用在非限制性定语从句中指人LiuXiang, who quited in Beijing Olympics, is still regarded as a hero in china.That & which下列情况中只能使用 that1 先行词是everything,anything等不定代 词或是all, much,few, little以及被其修饰Everything that can be done has been done.There are few books we can read.2 先行词被the only, the very, the last, the very及序数词修饰This is the only food that I can find for you.His composition was the second one that was handed in.3 先行词被形容词或副词的最高级修饰时This is the most interesting film that I have ever seen.4 先行词人物共存时They talked for half an hour of things and persons that they remembered in the school.5 先行词在从句中做表语China is not the country that it used to be6 先行词为数词时He brought two cats yesterday. Now I can see the two that are playing in the garden.7 为避免重复He build up a factory which produced things that had never been seen before.8 先行词为 what时What that is on the table belongs to me.通常使用whch的情况1 当关系代词之后有插入语时He made another wonderful discovery, which I think is of great importance to science. 2在谚语中常采用that which的用法That which is evil is soon learned.3 先行词是指物的that或those时He has found that which he has been looking for.*which的特殊用法*1. 指代整个主句或主句的部分John said hed been working in the office for an hour , which was true.2. 限定作用但前必须有介词He lost his temper, at which point I decided to go home.His son insisted on joining the army, in which case he had to give in.Whose的用法指人或物，表示所属关系I dont want to hire the boy whose father is now in prison.Look at the house whose roof is red.In the office I never seem to have time until after 5:30, by which time many people have got home.Whose+ N = N+ of whichThe house whose roof was damaged has now been repaired.The house the roof of which was damaged has now been repaired.The house of which the roof was damaged has now been repaired.名词前定冠词介词+关系代词Prep + which/ whomThe chair on which she is sitting is made of plastics.The woman to whom you talked just now is a famous singer.*Your speech was heard by a group of five judges, all of whom agreed tht it was the best one this year.*I called him by the wrong name, for which mistake I should apologize.刚才与我们校长谈话的那个人是我们的英语 老师 1The man to whom our headmaster talked just now is our English teacher.2 The man whom our headmaster talked to just now is our English teacher.3The man who our headmaster talked to just now is our English teacher. 4The man that our headmaster talked to just now is our English teacher.5The man our headmaster talked just now is our English teacher.特殊的关系代词 1. as(1)As 引导限制性定语从句用在固定搭配asas, soas, suchas, the same asYou may take as many books as you want.I have got such a computer as yours.This is the same bicycle as I have lost.This is the same bicycle that I have lost*The same as 表示它的内容与先行词 所讲的事物是一类，而the same that 是 同一个*（2）as引导非限制性定语从句 指代整个主句或主 句的部分内容As we all know, light travels faster than sound.Taiwan, as you know, is an inseparable part of china.Which& as 的区别Smoking is harmful to ones health, as is known to us all.It was raining heavily last night, which prevented me from going to the party.As 引导的非限制性定语从句可置于主句的任何位置 ，而which只能放在主句句末As引导的非限制性定语句经常翻译成“正如” 而which 翻译成“这一点”As 在从句中做主语时，谓语动词一般为Be 而which 不用but用在否定结构相当于 who/thatnotIn China there is no one but knows XiaoShenyang.There is no rule but has exceptions关系副词引导的定语从句I will never forget the days when I was in Cannda.The company where he is working is one of the biggest in the cityThe reason why he was late today is traffic jam.In/on whichIn/at whichfor which1Never will I forget the days _ we spent together in our middle school.2This is the factory _ my father visited yesterday.3Is this factory _ my father visited yesterday?4Was this the reason _ he explained to us for his being late?先行词在从句中做何种成分决定使 用那个关系词Hes got himself into a dangerous situation _ he is likely to lose control over the plane.A. where B. which C. while D. why当先行词为case, situation, stage, activity, 等表示隐含地点的词语时，关 系词使用where定语从句