Question

名词性从句题目一个

Why not try your luck downtown,Bob? That is______ the best jobs are.

A.where B.what C.whether D.that

答案是A。。但是我不明白，从句不是ARE后面少了表语吗？为什么不选B？。。请高手分析下（最好分析下句子成分）
关键是WHERE是连接副词不是吗？。。这个句子貌似不完整啊。。

Answer 1

这里是名词性从句中的表语从句.名词性从句从语法上相当于一个名词(短语),换成宾语从句你就能容易理解,但一变成主语从句/表语从句/同位语从句,很多人就出现理解困难.就象 I don't know where you live.很简单的,你就把where翻译成"....的地方"就行了.再比如:I don't know what you said.中的what翻译为"...的东西/事情"一样啊.换成主语从句再体会一下: Where you live is unknown to me.What you said made me confused.最后我们看看表语从句: The key is what you have said.关键是你说过什么东西?That is where the best job are.那就是好工作所存在的地方.记住下面几句话:名词性从句是个名词,是由引导词+称述句构成.引导词如果在从句中不充当成分,就用that;是"是否"之意,就用if/whether;而为特殊疑问词时,它在从句中必须充当一定的成分,缺什么成分就填上什么疑问词.题中the best jobs are的确在are后缺少where这个疑问副词做表语啊(where=介词+某地)!
最后再举几个例子: This is what I want to know.
The problem is when you will be free.
The key is how you can finish the work.
The answer is that you are fooled.
The trouble is whether you can solve the problem.
The city is where you can find good jobs.

Answer 2

这里并不是一个名词性从句，而是一个地点状语从句，而WHERE可以引导地点状语从句，其他都不可以。

Answer 3

我的个人意见仅供参考
is后面是表语从句
还原完应该是the best jobs are there.
这里 用where 代 there表地点

Answer 4

Why not try your luck downtown, Bob? That’s _______ the best jobs are.

A. where B. what C. when D. why

考点:名词性从句根据句子意思选择连接词, “好的工作都在市中心.”

答案: A

Answer 5

这里的where指的是downtown
从意思理解就好了