定语从句中,用that,what区别以及定语从句怎填写先行词,我老是搞混

定语从句中,用that,what区别以及定语从句怎填写先行词,我老是搞混

首先,定语从句的关系词分为关系代词和关系副词
关系代词有
that/who 指代人,作主语
whom/that指代人,作宾语
whose表示所有格
which/that/as指代物,作主语或宾语
关系副词有when/where/why/介词+when/which的结构
所以在定语从句中,关系词中没有what的,what是用来引导名词性从句的
其次,先行词指的是被定语从句所修饰的名词,代词,可以根据从句来填写
再问： 1.就有时候一个定语从句中有place ,那怎样分辨用which 还是where 2.在有些定语从句中选择有时选what,有时选that,有时又可以互换,咋分辨? 举一些中考经常考的例子说明一下
再答： 1which和where前面已经说了 where是当先行词在从句中作地点状语时用的 which是当先行词在从句中作作主语或宾语时用的 eg this is the factory where he worked (he worked in the factory)作状语 this is the factory which we visited yesterday (we visited the factory)作宾语 2what不能做定语从句的关系词，what只能引导主语从句 what不能做定语从句的关系词。 限制性定语从句只能用that 的几种情况 1．当先行词是anything, everything, nothing (something 除外), few, all, none, little, some 等代词时，或者是由every, any, all, some, no, little, few, much 等修饰时 (1) Have you taken down everything that Mr. Li has said? (2) There seems to be nothing that seems impossible for him in the world. (3) All that can be done has been done. (4) There is little that I can do for you. 注意：当先行词指人时，偶尔也可以用who (4) Any man that/.who has a sense of duty won”t do such a thing. 2. 当先行词被序数词修饰 (1) The first place that they visited in London was the Big Ben. 3. 当先行词被形容词最高级修饰时 (1) This is the best film that I have seen. 4. 当形容词被the very, the only修饰时 (1) This is the very dictionary that I want to buy, (2) After the fire in his house, the old car is the only thing that he owned. 当先行词指人时，偶尔也可以用who (3) Wang Hua is the only person in our school who will attend the meeting/ 5. 当先行词前面有who, which等疑问代词时 (1) Who is the man that is standing there? (2) Which is the T-shirt that fits me most? 6. 当先行词既有人，也有动物或者物体时 (1) Can you remember the scientist and his theory that we have learned?