Question

高中英语题： what/which is the best restaurant you have ever eaten in?

Answer 1

which
指代这件事
what指代内容
what可以引导名词性从句，在从句中可做主语、宾语、表语。
which是关系代词，引导定语从句，在从句中可充当主语、宾语、表语。引导定语从句的词分为关系代词（which,that,who,whom,whose,as）关系副词（when,where,why）,注意：没有what.
简单点记吧：定语从句放在表示“事物”的名词后面，且关系代词在从句中充当句子成分，用which。如果不是定语从句，就考虑用what。
如：
1.This
is
the
book
which
I
talked
about
yeasterday.
(which引导定语从句放在名词book后面起修饰作用，which在从句中充当talk
about的宾语)
2.
This
book
is
what
I
talked
about
yesterday.(what引导名词性从句，放在is之后，what
在表语从句（名词性从句）充当talked
about的宾语。)

Answer 2

选择性回答用WHICH,就是说
-------------is
the
best
restaurant
you
have
ever
eaten
in?
A
OR
B?
这时候,你用WHICH,
没有选择的,用WHAT~

Answer 3

which是指哪个，即在现场，其中有一个是the
best
restaurant
。what是指不在场，只是问吃过的最好的。