some、any、no都是什么词性？

　　1)some, any, no既可用于可数名词也可用于不可数名词，表示不肯定的数量。
　　【例如】

　　I have hardly any coffee left.

　　There are some books and a pen on the table.

　　Hurry up, there is no time left.

　　* no用作限定词，相当于not any/not a.

　　【例如】

　　This old man has no relatives, so he has to depend on his neighbors for a living.(This old man doesn't have any relatives, so he has to depend on his neighbors for a living.)

　　2) any通常用于否定句或疑问句，some用于肯定句。

　　【例如】Do you have any questions about the passage?No, I don't have any questions about it, but I have some questions about the assignment.此外，* some也可用于疑问句，表示说话人希望得到肯定回答。

　　【例如】

　　Would you like to have some tea?Would you mind buying me some sweet?* any常用于if引导的状语从句。

　　【例如】

　　If any letters arrive for me, can you sent them to this address?If you have any requirement, you can ask me.* any也可以用于肯定句，表示任何。

　　【例如】

　　The medicine is on sale everywhere. You can get it at______chemist's. (CET-4 1997,6)

　　A) each B) some

　　C) certain D) any

　　each表示各个，some表示一些，certain表示一定的，any用于肯定句时，表示任何，故根据意思，答案为D。

　　3) some, any, no可以与more连用，表示“更多”。

　　【例如】Please give me some more water, for I am really thirsty.I have no more good ideas. I am at my wit's end.Do you have any more books available?

　　4) some, any与单数可数名词连用时可表达特定含义。

　　【例如】

　　Any boy in the class can pass the exam. (any boy=every boy)Some guy did it without being known by the others. (some＝a certain)

　　some, any, no组成的复合词

　　1)由some, any, no组成的复合代词：someone, something, somebodyanyone, anybody, anythingno one, nobody, nothing这些代词只能用作单数，用法与some, any, no相似。

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