3lander． 当 who 在定语从句中做宾语时，可以用 whom 来取代，且 whom 比 who 更正式。
如： I don't know the name of the teacher who/whom I saw in the computer room the other day.
4． 当关系代词在定语从句中做宾语时， who ， whom ， which 和 that 可以被省略。
如： He likes all the birthday prents(that/which)his friends gave him.
5． Who 用来表示所属，它既可指人也可指物。
如： I sat next to a girl who name was Diane.
The club who members are music fans meet in the school garden every Saturday afternoon. 第二单元 定语从句
一、定语从句：介词提前的定语从句 ( preposition ＋ which; preposition ＋whom )
当关系代词( which/whom )做定语从句中介词的宾语时，可以把介词提到关系代词的前面。
如： We thought you were a person from whom we could expect good decisions. 在非正式英语中，介词通常放在定语从句的最后。
如： Art is the subject which I know little about.
如果介词放在定语从句的最后， which 可以被 that 取代， whom 可以被 that 和 who 取代。 如： Dad is a person whom/that/who I can easily talk to.
当关系代词做定语从句中介词的宾语，并且介词又放在定语从句的末尾时，我们通常省 略关系代 词 who 和 that 。
如： The topic (which) Eric is interested in is Physics.
shopaholicDaniel is the person (whom) I want to make friends with.
当先行词是 way 时，我们用 in which 或 that 来引导定语从句，这种情况下， in which 圣诞快乐英文歌或 that 可以 被省略。
如： I didn ' t like the way (that /in which) she talked to me.
modem二、定语从句：关系副词： when ， where ， why
我们通常用关系副词 when 引导先行词是 time ， moment ， day， attason， year 等的定语从句。 如： Do you remember the day when we left you in charge?
I often think of the moment when I saw the UFO. 2淄博英语培训．我们通常用关系副词 where 引导先行词是 place，hou，city，邱昕瑶country ， city ，world 等的定语从 句。
如： The police arched the hou where the thief had stayed. This is not a family where bad behavior goes unpunished.
3．我们通常用关系副词 why 引导先行词是 reason 的定语从句。
如： I don't know the reason why the hou is so dirty. 4．在更加正式的英语中， where ， when 和 why 能够被介词＋ which 所替代。
如： The study is the place where/in which I often have talks with my father.
This is the reason why/for which my parents got home earlier. It rained the whole day wh
en/on which he traveled with his family.
第三单元 定语从句
一、定语从句：非限制性定语从句 1．非限制性定语从句是一个为主句添加额外信息的从句，在非限制性定语从句前通常有个逗号。
如： Amy, who took weight-loss pills, now realizes that health is important. My pills are in the bathroom, where I always keep them. 2幼儿启蒙英语视频．当先行词是整个主句时，可以用 which 来引导定语从句。
如： He misd the show, which was a great pity. 3．我们可以用 all ＋ whom/which 来表示全部数量，用 some of＋ whom/which 有好的托福培训机构吗来表示部分数量。
如： I am doing different types of exercis, all of which are quite helpful to my health. Many people, some of whom are not overweight, are going on diet.
二、附加疑问句 1．附加疑问句是放在陈述句后面的短问句。它们通常被用在口语中来引出一段对话，以一个更加
礼貌的方式来询问信息， 温柔的发号施令或要求某人做某事。 我们用附加疑问句来询问意见或征求同意。 当我们用附加疑问句来询问意见时， 为了期待对方能同意我们的观点， 附加疑问句会用降调来表达。 当我们用附加疑问句来征求同意时，我们实际上是在询问我们自己也不太能确信的事情，这时候附 加疑问句会用升调来表达。
2．附加疑问句的构成有以下几种：
1)在肯定的陈述句之后，我们会用否定的附加疑问句。在否定的陈述句之后，我们会用肯定 的附加疑问句。
如： We can still be friends, can 't we?
He doesn' t like ice cream, does he?
