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课件网) 关系副词和“介词+关系代词”引导的限制性定语从句 关系代词as的用法 1.引导限制性定语从句常和the same,such,as等连用 2.the same...as...：指不同的人或物 the same...that...：指相同的人或物 3.常作主动语态的宾语，被动语态的主语 As we all know/As is known to all/As we all can see众所周知 As is often the case 情况常常是这样 As might be expected 正如所预料的那样 As has been pointed out 正如所指出的那样 As has been said before/above 正如前文所述 As (it) often happens 就像经常发生的一样 4.可位于句首、句中、句尾，位置灵活 5.可指代整个句子的内容 限制性定语从句和非限制性定语从句的区别 1.作用不同 限制性定语从句：在意义上与先行词关系紧密，是不可缺少的定语，去掉之后意思不完整或失去意义 非限制性定语从句：和主句的关系不十分密切，只是对先行词作附加说明，去掉之后意思仍然清楚 2.形式不同 限制性定语从句中主句与从句间无逗号 非限制性定语从句中主句与从句用逗号隔开 3.先行词 限制性定语从句的先行词只能是名词或代词 非限制性定语从句的先行词既可以是名词或代词，也可以是短语或句子 4.关系词不同 that,why不能引导非限制性定语从句 5.关系词替代情况不同 (1)限制性定语从句：whom作宾语时可用who替换 非限制性定语从句：whom作宾语时不可用who替换 介词+whom=who (2)限制性定语从句：指人—that/who/whom 非限制性定语从句：指人—who/whom 6.关系代词省略情况不同 在限制性定语从句中，关系代词作宾语时可省略(介词后不可) 在非限制性定语从句中，所有关系代词不可省略 I still remember the day. I met him on the day. I still remember the day on which I met him. when This is the classroom. We study knowledge in the classroom. This is the classroom in which we study knowledge. where 当先行词是表示抽象意义的地点名词: occasion场合 case情况,事例 condition条件,情况 situation情况,形势 stage阶段,状态 point地步 position位置 且在定语从句中作地点状语时，常用where/介词+which引导定语从句 This is the reason. He falls in love with her for the reason. This is the reason for which he falls in love with her. why 介词+关系代词引导的定语从句 1.关系代词的使用 先行词指人时:介词+whom 先行词指物时:介词+which This is the student for _____ I bought a book. 2.介词的选用 (1)根据定语从句中的谓语动词与介词的习惯搭配来确定 This is the history book ____ which I paid 55 yuan. (2)根据定语从句中的主要形容词与介词的习惯搭配来确定 He brought the result ____which the boss was satisfied . (3)根据先行词与介词的习惯搭配的来确定 Do you still remember the day __ which we met for the first time (4)根据定语从句所表达的意思来确定 Fortunately we had a map,____ which we would have got lost. 有些固定动词短语一般不能拆开(不及物动词+介词)，介词仍放在动词的后面 如：look at ,look after,take care of Is this the book she is looking for 关系代词和关系副词的选用 方法 依据 根据从句的 谓语动词 如果是及物动词，后面若无宾语，用关系代词 如果是不及物动词，用关系副词 根据先行词 在从句中所 做的成分 把先行词放入定语从句中， 若做主语或宾语、定语用关系代词；做状语则用关系副词 This is the factory____ he used to work. This is the factory_____ I visited last year. Is this the museum _____ you visited a few days ago Is this t ... ...
