再請教一題

[xenophen]

When the technique know as organ transplant was introduced in the early 1960s, it was feared that grafts from nonhuman animals might creat "Ebola," a new virus never before found in humans that might spread from people to people and it would kill vast numbers of humans who would have no natural defences against it.

(A)it would kill vast numbers of humans who would have no natural defences against it
(B)it would kill vast numbers of humans with no natural defences against it
(C)kill vast numbers of humans who would have no natural defences against it
(D)kill vast numbers of humans who have no natural defences against it
(E)kill vast numbers of humans with no natural defences against them

答案是C
請問為什麼這裡要用would have no natural defences 不能用have no natural defences (如D)?

謝謝

[agk99]

nonhuman animals might creat "Ebola," a new virus never before found in humans that might spread from people to people

AND

kill vast numbers of humans who would have no natural defences against it

[xenophen]

不好意思
雖然我知道前面有might
可是我還是覺得去掉would也很合理啊
因為前面有might所以後面也一定要有would嗎?
would在這裡是假設用法嗎?
我還是不太懂ㄟ...

麻煩了

[agk99]

you are right..
it said that the organ transplant was introduced to early 1960s.....
it for sure is a conditioning sentence...

[cafe]

[quote="xenophen"]When the technique know as organ transplant was introduced in the early 1960s, it was feared that grafts from nonhuman animals might creat "Ebola," a new virus never before found in humans that might spread from people to people and it would kill vast numbers of humans who would have no natural defences against it.

(A)it would kill vast numbers of humans who would have no natural defences against it
(B)it would kill vast numbers of humans with no natural defences against it
(C)kill vast numbers of humans who would have no natural defences against it
(D)kill vast numbers of humans who have no natural defences against it
(E)kill vast numbers of humans with no natural defences against them

答案是C
請問為什麼這裡要用would have no natural defences 不能用have no natural defences (如D)?

前面的假設法適用於 a new virus.D的假設法式獨立用於人的，拿掉可能改變句意。

[Pudding]

不曉得這題的出處是哪裡? 因為這題跟OG-152可以說是一模一樣 (只是gene-splicing變成 organ transplant, "andromeda strain" 變成 "Ebola"...

按照OG的解釋, C "uses parellel verb forms that are followed appropriately by the conditional 'would have' in the 'who' clause that modifies 'humans'. "

[Behemoth]

恩
請樓主把出處寫明喔
以便後人查詢

[xenophen]

這題是出自X欣的講義
原來OG裡面也有出過...難怪覺得有點熟悉

謝謝大家的講解!

[willy57]

如果按照莫老師的解釋法，原題語氣不確定答案沒有：改變句意！
因為這不是「確定」的事情所以代表有「可能性」（由題目句意得知），所以答案把可能性字眼拿掉會改變句意！！