OG两题拜托各位解答下！！

pp0614 · 发表于 2010-8-4 11:28:26

From OG 12^th edition p679
118. The world wildlife fund has declared that global warming, a phenomenon most scientsts agree to be caused by human begings in burning fossil fuels, will create havoc among migratory birds by altering the enviroment in ways harmful to their habitats.

a) A phenomenon most scientists agree to be caused by human beings in burning fossil fuels,
b) a phenomenon most scientists agree that is caused by fossil fuels burned by human beings,
c) a phenomenon that most scientists agree is caused by human beings's burning of fossil fuels
d) which most scientists agree on as phenomenon caused by human beings who burn fossil fuels,
e) which most scientsts agree to be a phenomenon caused by fossil fuels burned by human beings

The best version of a sentence should avoid the use of an –ing word after a possessive. So why is the answer C?
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From OG 12th edition, p672
79.
Defense attorneys have occasionally argued that their clients' misconduct stemmed from a reaction to something ingested, but in attributing criminal or delinquent behavior to some food allergy, the perpetrators are in effect told that they are not responsible for their actions.

(A) in attributing criminal or delinquent behavior to some food allergy
(B) if criminal or delinquent behavior is attributed to an allergy to some food
(C) in attributing behavior that is criminal or delinquent to an allergy to some food
(D) if some food allergy is attributed as the cause of criminal or delinquent behavior
(E) in attributing a food allergy as the cause of criminal or delinquent behavior

My question is after the word if, do we have to use will or would?

Because according to OG 12th edition, p670
67.
Affording strategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure.
(A) if they did not hold it, their grip on Algeria was always insecure
(B) without it their grip on Algeria would never be secure
(C) their grip on Algeria was not ever secure if they did not hold it
(D) without that, they could never be secure about their grip on Algeria
(E) never would their grip on Algeria be secure if they did not hold it

The answer is B and the OG says this is because conditional clause should embrace the word would or will.

So I am confused about question 79.

头被门夹了 · 发表于 2010-8-4 11:42:30

第一题
因为动词burn没有一个合适的对应名词
burn作名词时表示的是“烧伤，伤痕” 所以这里用burning这个动名词来表示燃烧这个动作

第二个是用will还是would的问题
这里实际上涉及到一个说话人语气的问题
79题表达的是一个不成文的规定所以说话人的语气是很肯定的 if所引导的条件从句表达一种先决条件在这种先决条件下主句的动作一定会发生所以用现在时

而关于67题因为有一个assumed 所以是法国人假设的情况在表达这种假设情况下发生的事情语气往往是比较弱的有点虚拟语气的意思所以用了would 同样表示一种假设的结果

本贴相关题目 OG-2016-SC-88OG-2016-SC-88
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本贴相关题目 OG-2016-SC-88OG-2016-SC-88
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OG-13-SC-69
OG-12-SC-67
... (PCRO)

OG两题拜托各位解答下！！