"I don't think he's so great,"says Ruth from New York."But my mom does."这句话有两个重点,一个是say,一个是does替我讲解一下其用法please.I’m waiting for you.

"I don't think he's so great,"says Ruth from New York."But my mom does."这句话有两个重点,一个是say,一个是does替我讲解一下其用法please.I’m waiting for you.
"I don't think he's so great,"says Ruth from New York."But my mom does."
这句话有两个重点,一个是say,一个是does
替我讲解一下其用法
please.I’m waiting for you.

"I don't think he's so great,"says Ruth from New York."But my mom does."这句话有两个重点,一个是say,一个是does替我讲解一下其用法please.I’m waiting for you.
"我不认为他很厉害,"来自纽约的卢瑟说,“但是我的妈妈却那么认为.”
这个就是中文翻译.say是及物动词 vt.1.说,讲[+(that)]
The doctor said she would be all right in a few days.
医生说她过几天就会好的.
2.讲述;说明[+(that)][+wh-]
3.表明,指明
4.假定,假设[+(that)]
Let's say you miss the train,what do you plan to do?
假定你赶不上火车,你准备怎么办?
5.(常用作插入语)比如说,例如;估计;约摸
You may learn to play the violin in,say,three years.
你可以,比如说,在三年内学会拉小提琴.
6.(人们)认为,声称[H][+(that)][O2]
It is said that there has been a serious earthquake there.
据说那里发生了一次大地震.
7.【口】揭示;吩咐[W][+to-v]
Mom said to tell you you should take three pills after dinner.
妈关照饭后你得吃三片药片.
不及物动词 vi.1.说,讲;发表意见
It's not for me to say.
这不应由我发表意见.
名词 n.
1.发言权[S][(+in)]
I don't think he has much say in this matter.
我想他在此事上不大有发言权.
2.要说的话,意见[S]
I've had my say.
我要讲的都讲了.
3.决定权[the S]
感叹词 int.1.喂,哎呀
does 就是一个为了不使动词重复出现而使用的替代词.

says的主语是第三人称单数，所以加s。
does 是引号里think的代表词，也是第三人称单数，主语是my mum。意思是：但是妈妈认为。
很高兴为你解答！
老师祝你学习进步！
望采纳，多谢你的问题！^_^谢谢你，但你可以帮我总结一下say和does的用法吗，语法方面.不好意思，麻烦了点吧.......

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says的主语是第三人称单数，所以加s。
does 是引号里think的代表词，也是第三人称单数，主语是my mum。意思是：但是妈妈认为。
很高兴为你解答！
老师祝你学习进步！
望采纳，多谢你的问题！^_^

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此处助动词does用于替代句中的主要动词，以避免重复。
如：
He didn't go to the party.Neither did I.
I do not agree.Nor does he.
Does Ford like playing football?
---No,he doesn't,but I do.
其他用法有：
1.用于加...

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此处助动词does用于替代句中的主要动词，以避免重复。
如：
He didn't go to the party.Neither did I.
I do not agree.Nor does he.
Does Ford like playing football?
---No,he doesn't,but I do.
其他用法有：
1.用于加强语气
But I do want to go.可我确实想去
2.在一些以否定副词如rarely,never,only等为首的句子中，如果实意动词是现在时或过去时，助动词do,did可构成主谓倒装
Never did I tell him about it.
say 的用法你查查牛津就知道啦，不涉及到什么高深的语法

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来自纽约的Ruth说,一般现在时态单数第三人称做主语,所以用says
后面的does是说"My mom thinks he is so great"省略为"my mom does."