17. "cannot…too…"结构,"cannot…too…"意为"It is impossible to overdo…"或者,即"无论怎样……也不算过分"。"not"可换用"hardly","scarcely"等,"too"可换用"enough","sufficient"等 You cannot be too careful.- _0 G! \0 M' o6 L- L# `
18. "否定+but "结构,在否定词后面的"but",具有"which not","who not","that not",等等否定意义,构成前后的双重否定。可译成"没有……不是"或"……都……"等2 M. {% G: \5 h9 w4 k: y
Nothing is so bad but it might have been worse.0 o5 S8 b5 Z7 X' E) X6 U
19. "否定+until (till)"结构,在否定词"no","not","never","little","few","seldom"等的后边所接用的"until/till",多数情况下译为"直到……才……","要……才……",把否定译为肯定。 % B# |; z `6 U' ~" c2 C, Y( K Nobody knows what he can do till he has tried./ M; R6 c9 ~. n( U/ J! ?
20. "not so…but"和"not such a …but"结构,这两个结构和"否定+but"的结构差不多,不同之点是这两个结构中的"but"是含有"that…not"意味的连续词,表示程度。可译为"还没有到不能做……的程度","并不是……不……","无论怎样……也不是不能……"等。" y6 A; L f# I8 @$ l
He is not so sick but he can come to school.: |! y4 c p% Q4 u; c9 f
21. "疑问词+should…but "结构,这个结构表示过去的意外的事,意为"none…but",可译为"除了……还有谁会……","岂料","想不到……竟是……"等。/ r1 P# _0 H: p" t
Who should write it but himself? 9 _" v: E* {! `- {1 V 22. "who knows but (that)…"和"who could should…but"结构,这个结构是反问形式,一般意译为"多半","亦未可知"等等,有时也可直译。% n) E9 O$ E- K. u, f. D. [
Who knows but (that) he may go? # c9 w1 M- v9 I- \5 N* u 23. "祈使句+and"和"祈使句+or"结构,"祈使句+and"表示"If…you…","祈使名+or"表示"if…not…,you。% E9 x7 O y+ `" u. i2 w
Add love to a house and you have a home. Aad righteousness to a city and you have a community. Aad truth to a pile of red brick and you have a school.- r" ~; z1 C% ^* M. B
24. "名词+and"结构,在这个结构中,名词等于状语从句,或表示条件,或表示时间。