TA的每日心情 | 怒 2019-9-29 20:45 |
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签到天数: 37 天 [LV.5]常住居民I
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发表于 2019-8-24 16:32:59
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本帖最后由 张琴琴 于 2019-8-24 16:52 编辑 + m* P8 i9 N$ z3 N9 q w+ x
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这里的show属于朗文词典中的这条用法:
; ~& Z: J2 a/ c9 _! h/ Gbe shown to be/do something
: c# _" x3 i4 y The campaign has been shown to be a waste of money.
0 D$ X' N S& _: C2 \ The new treatment has been shown to reduce the number of deaths.% C j0 A( D. p9 e4 s/ [* d- M
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而这里后接的不定式可以等价于从句,但从句中的谓语却要使用相应的时态或情态动词,如:
) [ B: N/ w O( s* JIt has been shown that the campaign IS a waste of money.4 ^1 e; E4 ~- s9 T
It has been shown that the new treatment CAN reduce the number of deaths.7 j( |# L1 [7 {. v1 R8 n8 d
8 L% [8 j% q( O; R* O9 A) @( I回到原句中,我们用从句表达可以是(注意以下不同时态所表达的时间含义不同):
8 J% o7 x m1 q5 pIt was shown that teachers had utilzied the ideas, but eventually they reverted to previous practices.
0 A( w0 ~( n+ i5 N7 h6 y; hIt was shown that teachers had been utilizing the ideas, but eventually they reverted to previous practices.( e' y# T5 o& N
It was shown that teachers were utilizing the ideas, but eventually they reverted to previous practices.
, R- {1 X5 P0 ~4 W但却不说% t# i, |; X3 k, w
It was shown that teachers utilized the ideas, but eventually they reverted to previous practices.7 Z- [# }$ M' P$ d' d
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所以原句
* U% W0 t N" w0 n+ L% U) O9 ITeachers were shown to be utilizing/to have utilized 都是说得通的,却不能使用to utilize( M: I" q- p! P5 ?
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