much, none, some以及anything, everything, nothing （something不受此限制）等不定代词；（4）同时为人和物；（5）为疑问代词时。如:

Everything that appears on the Internet is very appealing.

初学者由于记得不牢，此时常常误用which引导。

七、非限制性定语从句误用that作引导词。引导非限制性定语从句时，不能用that，必须用which。此外可以引导非限制性定语从句的还有who，whom，where，when，as等关系代词或关系副词,而且不能省略。如：

The Italian team defeated the German team, which some people had expected.

此时还可以将which换成as，意思是"正如有的人已经预料到的一样"。

八、as和which的误用。非限制性从句前置于句首时，不能用which，而要用as来引导。如：

As is well known to us all, life can't exist without air or water.

但是如果从句后置，则两者皆可以，只是意思略有区别（as译作"正如"，which译作"这一点"等）。如果定语从句是否定形式或从句谓语带有复合宾语时，则只能用which引导。如：

The Brazilian team was defeated by the French team, which we hadn't expected.

九、the same ... that和the same ... as的误用。注意两者的区别：the same ... that指"同一人（物）"；而the same ... as指"同一类人（物）"。如：

The people in many other Asian countries have the same custom as we Chinese have.

根据例句的含义，可知这里只能用关系代词as，不能用that，因为表达的意思是"相似"。

十、关系副词与关系代词的误用。如果引导词在从句中作状语应用关系副词引导；如果引导词在从句中作主语、宾语、表语时应用关系代词引导。如：

Hawaii is a beautiful place (which / that) all the people look forward to visiting.

定语从句中的visiting是一个及物动词，必须带宾语，所以不能用where作引导词，而应用which或that引导，且可以省略。如果将visiting改成going，则应该用where引导。

走出时间、条件、让步状语从句八大误区

误区之一：混淆while与when