both, neither, either 的用法
1. both 表示“两者都...”,可兼作代词和限定词。作代词时,指代复数可数名词,在句中作主语、宾语或同位语;作限定词时,修饰复数可数名词,作定语。
a. 作代词(作主语、宾语、同位语)
Both of the women are French. 这两个女人都是法国人。(作主语)
Both of my parents live in London. 我父母都住在伦敦。(作主语)
I love both of them. Can you buy them to me? 它们两个我都喜欢。你可以都买下来吗?(作宾语)
We both went to their wedding. 我们两个都参加了他们的婚礼。(作同位语)
b. 作限定词(作定语)
She kissed him on both cheeks. 她亲了他的双颊。
Both these books are expensive. 这两本书都很贵。
He held bottles in both hands. 他两只手都捧着瓶子。
2. either 表示“两者中的任何一个”,可兼作代词和限定词。作代词时,指代单数可数名词,在句中作主语或宾语;作限定词时,修饰单数可数名词,作定语。
a. 作代词
You can keep either of these two forms. 这两张表格你可以保留任意一张。
Either of the plans is equally good. 两个计划一样好。
Either of them is OK. 他们中任何一个都行。
b. 作限定词(定语)
There's a staircase at either end of the corridor. 走廊两端都有楼梯。
He can write with either hand. 他用哪只手写字都成。
There are shops on either side of the street. 街道两旁都有商店。
3. neither 表示“两者都不”,作代词时可用作主语、宾语或同位语。作限定词时用作定语。a. 作代词
Neither of them knew about it. 他们两人并不知道这回事。(作主语)
I tried on two dresses, but neither fits me. 我试了两件套裙,哪一件也不合身。(作主语)
I chose neither of them. 这两个我都不要。(作宾语)
I could answer neither of the questions. 两个问题我都答不上来。(作宾语)
They neither of them wanted to go. 他们两人都不想去。(同位语)
b. 作限定词
Neither boy is to blame. 两个男孩子都不应责怪。
Neither answer is correct. 两个答案都不对。
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