1.somewhere的基本意思是“在〔往〕任何地方,在〔往〕什么地方”,还可作“大约”解。
2.somewhere常用于肯定句中, anywhere常用于否定句和疑问句中。在疑问句中,可以用somewhere或anywhere,如果期望对方回答“是”,就用somewhere,如果不知道对方会回答“是”还是“不是”,用somewhere, anywhere都可以。
3.somewhere可修饰动态动词,多位于其后,也可用作表语,在口语中,可修饰形容词。
4.somewhere无比较级和最高级。

get somewhere
略有进展 have a little progress
〔说明〕 get somewhere只能用于肯定句。
Now, at last we know the murder weapon; now we're getting somewhere.现在我们终于知道作案的凶器,总算有点进展。

or somewhere
或在〔到〕别处 or in some other place
I'd like to go away, perhaps to Greece or somewhere.我很想离开这里,也许去希腊或别的什么地方。

用作状语
A young man appeared from somewhere.从什么地方来了个年轻人。
I want to go somewhere where it's quiet.我要去个安静的地方。
They're looking for somewhere to stay.他们正在找个能逗留的地方。
He's somewhere in the garden.他在花园的某个地方。
I've just thought of trying somewhere different.我已经考虑过试试不同地方。
The price was somewhere in the region of ￡1 million.价格在一百万英镑左右。
用作表语
He is somewhere else at present.他眼下在别处。

somewhere, anywhere
参见anywhere条。

1.公共汽车服务如此糟,以至于有些地方不可能到。
［误］  The bus service is so bad that it's almost impossible to get somewhere.
［正］  The bus service is so bad that it's almost impossible to get anywhere.
［析］  在这里因为用了impossible,因此视为否定句,应用anywhere。
2.你要去什么地方吗?
［误］  Are you going to somewhere?
［正］  Are you going somewhere?
［析］  somewhere是副词,前面不可用介词。