[SC. ] PP2-8 臭氧層這題的 it 是指代?
8. (24773-!-item-!-188;#058&001691)
Ozone, a special form of oxygen that screens out harmful ultraviolet rays,
reaches high concentrations twelve miles above Earth, where it has long
appeared that it was immune from human influence; we have now realized,
though, that emissions of industrial chlorofluorocarbons deplete the ozone
layer.
(A) has long appeared that it was immune from
(B) has long appeared to have been immune from
(C) has long appeared as being immune to
(D) had long appeared immune to
(E) had long appeared that it was immune to
答案是 (D) 也沒啥大問題
(E): where it had long appeared that it was immune to human influence
第一個 it 是虛主詞, 第二個 it 是指代 ozone
但是
(D): where it had long appeared immune to human influence
只有一個 it, 那這個 it 是虛主詞 還是指代 ozone?
我覺得是 ozone 耶... 大家覺得呢??
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◆ From: 211.21.104.32
※ 編輯: Bwk 來自: 211.21.104.32 (08/31 10:31)
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08/31 10:51, , 1F
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08/31 10:53, , 2F
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09/03 00:28, , 5F
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09/03 02:01, 7F
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