what 可不可以引导定语从句~

不可以定语从句 一、定语从句（一）：1。定语从句的概念：在复合句中,修饰某一名词或代词的从句叫定语从句。2。先行词：被定语从句修饰的名词或代词叫先行词。3。关系词：引导定语从句的连词叫关系词。如that、which、who、whom、whose、where、when等。4。由that、which、who、whom、whose引导的定语从句。关系词 指代 在定语从句中的作用 that 既指人也指物 作主语、宾语 which 指物 作主语、宾语 who 指人 作主语 whom 指人 作宾语 whose 既指人也指物 作定语 二、定语从句（二）1。先行词是物时,一般情况既可用that也可用which。但下列情况下,只能用that不用which。1)。当先行词为指物的不定代词,如all、everything、something、anything、nothing、none、the one等时,只能用that。There is nothing ______ I can do for you 。2)。当先行词被the only、the very 、the last、all、no、little等词修饰时,只能用that。This is the very book ______ I’m looking for 。3)。先行词被序数词修饰时,只能用that 。This is the first nextbook ______ I studied in the middle school 。4)。先行词为最高级或被最高级修饰时,只能用that。This is the most beautiful mountain ______ I have ever seen 。=I have _____ seen _____ a beautiful mountian 。5)。先行词既有人也有物时,只能that 。He told us many interesting things and persons _______ we had 。2。先行词是物时,一般情况既可用that也可用which。但下列情况下,只能用which不用that。1)。关系代词前有介词时,关系词只能用which 。This is the building in ______ he lives 。2)。先行词本身是that时,关系词只能用which 。The clock is that _____ tells the time 。3)。引导非限定性的定语从句（先行词是物且先行词与关系词用逗号隔开）,关系词用which。His book ,______ was lost last week ,has been found now。3。先行词是人时,一般情况下既可用who 也可用that 。但以下情况下,只能用who。1)。当先行词为those、one、ones、anyone且作主语时,一般用who 。Those ______ are singing are all my classmates 。2)。在there be 句型中,先行词指人时,只能用who。指物时用that。There is a girl ______ expects to see you 。3)。当先行词是I、you、he、they等时,只能用who 。He ______ plays with fire gets burned 。三、定语从句（三）。由关系副词when、where、why引导的定语从句。where = in / at +which when = in / on / at +which why = for + which 1。由where引导的定语从句。1)。先行词是表示地点的名词 2)。在定语从句中作地点状语Is this the house ______ you lived = Is this the house _____ _____ you lived = Is this the house _____ you lived in 2。由when引导的定语从句。1)。先行词是表示时间的名词 2)。在定语从句中作时间状语I will never forget the days ______ I met him 。= I will never forget the days ____ ____ I met him。注：先行词是the last time 时,when 可省略。When was the last time you saw the parrot 3。由why引导的定语从句。先行词为reason 时,一般用why 。why在句中作原因状语。We don’t know the reason ______ they didn’t come 。四、注意事项：1。关系词在定语从句中作宾语时,常可省略。The story _____ he told was very popular 。A。who B。whom C。whose D。/ 2。that、who、which在定语从句中作主语时,定语从句的谓语动词应与先行词保持一致。I loves singers who _______(write) their own songs 。She is one of the girls who ______(study) hard 。3。在定语从句中不能出现代替先行词的人称代词。Will you please show me the book ______ yesterday?A。which you bought B。that you bought it C。you bought D。you bought it 4。定语从句中whose 的确定：无论先行词是人或物,在定语从句中做定语用whose。判断：看定语从句的主语前有无限定词（my、your、Jim’s等）,若没有,则用whose 。The girl _____ parents work in Beijing is Kate 。A。who B。whose C。which D。that I know the boy 。His handwriting is very good 。= I know the boy ____ handwriting is very good。五、定语从句的简化把定语从句简化为形容词短语、过去分词短语、介词短语、现在分词短语。1。She reveived a box which was full of presents 。She reveived a box _____ _____ presents 。2。He likes reading books that was written by Luxun。He likes reading booking _____ ____ Luxun 。3。I like Chinese tea which has nothing in it 。