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1、Grammar 定语从句中的关系代词定语从句中的关系代词定语从句常用的关系代词有：that 、who(m)、whose、which等 1) A plane is a machine that can fly. A plane is a machine which can fly. 2)Have you found the bike that you lost? Have you found the bike which you lost? that和和which在指物的情况下一般都可以互换在指物的情况下一般都可以互换, 但有些情况下只用关系代词但有些情况下只用关系代词that,而不能用而不能用
2、which1.从句所修饰的词又被从句所修饰的词又被形容词最高级形容词最高级或或序数词序数词修饰时修饰时, 只能用只能用that引导从句引导从句. This is the most interesting story( that )I have ever heard. The first meeting( that) we will take part in will be held in the afternoon.2.先行词是先行词是all,something,nothing,anything不定代词不定代词时时,只能用只能用that. Here is something( that) I
3、will tell you. Not all that glitters is gold.3.先行词既有人也有物时先行词既有人也有物时,只能用只能用that引出从句引出从句 I can remember well the persons and some pictures(that) I see.4.先行词是先行词是one of,the one, 或用或用little,few, no, all,any 作修饰，用作修饰，用that Is it the one that you want ?We havent got much that we can offer you.5.当主句已有疑问词当主
4、句已有疑问词 who或或which时，关系词用时，关系词用that Which is the bike that you lost? Who is the woman that was praised at the meeting?6. that 不能引导非限制性定语从句不能引导非限制性定语从句 7. that不能置于介词之后（介词后指物用不能置于介词之后（介词后指物用which, 指人用指人用whom） 从例句中看出，从例句中看出，who、that在许多情况下可以通用，但有时宜在许多情况下可以通用，但有时宜用用who,而不用而不用that1.先行词是先行词是one(s),anyone,som
5、eone, those时，关系词使用时，关系词使用who Those who want to go to the Great Wall sign up here. One who has nothing to fear oneself dares to tell the truth. 2.在在there be 句型中，先行词指人句型中，先行词指人,关系词用关系词用who There is an old man who wants to see you.There are many young men who are against him.Provebs:1.不懂装懂，一事无成。He who knows nothing but pretends to know everything , is indeed a good-for nothing.2.万事开头难。 Its the first step that costs.3.闪光的未必都是金子 Not all that glitters is gold. Thank you
