从"So do I"谈起

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两人对话，乙方对甲方的问话常可用简短回答作出 反应。例如： Do you like it? -- Yes，I do.这同样适用于陈述句的场合： You worry too much．-- No，I don't.在后一种情况下，乙方也能"So＋do＋主语"之类 的结构表示看法。
+ p9 |7 V# b' P! J例如甲方说"我喜欢苹果"，乙方 如果想表示"我也喜欢苹果"，英语可以说：

A：I like apples.
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. S+ \9 N9 M# l! E* w9 OB：So do I．（＝ I like apples，too。）
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　这里的so在意义上相当于in the same way，即同样、 也那样，作简短反应表示同样看法时常用之。
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3 z$ ~2 A1 i  T$ e4 H, [本文 就诸如此类的四种结构略作介绍。

, W& B' v. p3 a/ Q2 N1．"So＋do＋主语"结构 在简短反应中表示"我也如此"或"另外一个人也 如此"时，也就是主语不同于上文的主语以及上 文并无可用于构成倒装的动词（即操作词时）， 可用此结构。例如： A：I like playing football. B：So do I./So does my brother./So did my father. 如果上文有可用于构成倒装的动词时，则用相同 的动词或根据不同人称用同类的动词。 I must go -- So must I. John can speak French．--So can I. I've got a new car．--So has John. She is clever.-- So is he.
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8 b/ y. ^( f" L& S( D$ V2．"Neither/Nor ＋ do ＋ 主语" 结构 如果上文表示否定意义而在简短反应中表示同样 看法时，可用此结构。例如，甲方说I can't swim， 乙方如果想表示"我也不会游泳"，英语可以说 Neither can I. / Nor can I（＝I can't either）。
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又例如： A：He doesn't speak French. B：Neither/Nor do I. Neither/Nor does my brother. Neither/Nor does my father. 关于以上两种结构，有两点说明：

( v* J& D  m7 \第一，能用动词缩略形式。例如： I'm going to London. ---So's John。(is) I've been to New York. ---So's John.(has) I'd have gone to Tokyo if I could．---So'd John.(would) John hasn't got a visa. ---Nor've do I．(have) Jim and Mary aren't acting in the college play. ---Neither's Peter.(is)
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0 v$ r  S2 z$ x+ Z6 x% f& ?9 d第二，上述甲乙对话如用and连成一句可出自一人 之口。例如： John can speak French and so can't I. John can't speak French and neither/ nor can I. John speaks French and so do I. John doesn't speak French and neither/nor do I. 上述斜体部分相当于and I can, too / and I can't either / and I do too / and I don't either 的意思。 　
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3．"So＋主语＋do"结构 在简短反应中，对别人所说的情况加以肯定以及 主语与上文主语相同时，可用此结构，注意，这 里不用倒装同序；so 的意义相当于indeed, certainly，即"不错"、"对了"。例如： A：John smokes a lot. B: So he does．(=He smokes a lot indeed.) 这类简短反应往往带有说话人的惊奇口吻。例如： A：Look，it's raining! B: So it is. 在这里，So it is的含义是 You are right! It is raining；and this surprises me. 　
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5 R: h% K( b) ?4．"Nor＋主语十do"结构

如果乙方想对甲方所否定的情况加以肯定时，可用此 结构(注：在这类结构中，neither少见)例如： Look! It isn't raining any more!
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---Nor it is!
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This cup hasn't got a handle!
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% v; Q8 A# c$ o' d! }---Nor it has!
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四种结构的介绍就到此为止。下面从L.A. Hill所著 An Intermediate Refresher course 一书摘引一则 对话供初学者观察上述四种结构在上下文中的使用 情况。

/ W, P9 C3 f: x: {/ e; `Derothy: Look it's raining!
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: |* N% w  f5 ?) h7 F9 ODonald: So it is! I'm not going out this afternoon now.
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Dorothy：Nor am I. You and I haven't got anything to do this evening, you know.

Donald: Nor we have! We can go to the cinema then.
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Derothy: So we can.

Donald: There's a good film on at the "Metropole".

4 E5 t) v$ V/ GDerothy: So there is! Shall we go?
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# R  c! |/ K5 u- |1 D$ X& T6 qDenald: Yes, let's.

5 L% X7 _: E, j$ ADerothy: But it doesn't start until 6 o'clock.

" A  f9 ~. u9 E2 QDenald: Nor it does! I thought there was an early performance too.
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6 e) X6 Q2 w" I4 D, RDorothy：So did I . Well, I don't want to sit about doing nothing until 6.
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% `7 f2 j% G! z- U1 d; HDonald: Nor do I …Oh, look, it isn't raining any more.
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Dorothy: Nor it is! I'd like to go for a walk.
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- j+ [( I9 `" R( H) c: `Donald: So would I…OH, who's that coming up the road?
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/ _1 u% ]4 ]& ]' `# E! w2 u0 xDorothy: It's the postman.

Donald: So it is! He's very early. The evening newspaper hasn't even arrived yet.
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Dorothy: Nor it has! That's late today. I hope the postman has a letter for us.

* Z; r' o: N8 |- h" L9 KDonald: So do I - but I don't want any more bills!
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# q! U0 q1 d. u, c0 JDorothy: Nor do I!
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Donald: Here he is…there's a parcel for us!

" F2 L1 d+ L7 J" S; A3 z! P$ bDorothy: So there is! I wonder who sent it.
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Donald: So do I. I wasn't expecting a parcel.
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) n% V2 U0 [- O5 Y3 N: @& |  KDorothy: Nor was I. Oh, it's from Mother - they are woolen clothes for the baby!
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Donald: So they are! She must have knitted them herself!

+ E8 d9 v: Q) m+ W3 O! J- O; qDorothy: There's no letter in the parcel.

' [, o6 f: d& K0 C' [) HDonald: Nor there is! I find that strange.

Dorothy: So do I. She always writes to us on Sundays. Oh, well, perhaps we shall get a letter from her tomorrow.