据版主的题目:
The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.
Which one of the following is most strongly supported by the statements above, if they are true.
A). All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.错的原因：All wavelengths 太strong。原文只知完好的臭氧层滤掉一部分光，让一部分通过，并说通过的那部分对很多动物有害。从这点很容易误认有害的都给滤掉了。其实原文没说是否那通过的一部分是否含有有害波长。所以错。
B). Few species of animals live on a part of the earth\'s surface that is not threatened by holes in the ozone layer错的原因：原文只说有HOLE可能会使很多动物受伤害，从这点也许可以推出有动物生活在受HOLE威胁的地方，但原文没说有没有动物生活在不受HOLE威胁的地方，故错。
C). Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight错的原因：有些人容易选这个，因为原文最后一句话说HOLE会伤害很多动物的眼睛，就是说很多动物的眼睛会受伤害，既然有很多的眼睛受伤害，就有不受伤害的。错。关键是理解原文最后一句话的many。其实相当于some ，表达的是有的概念，就是可以是1-100。相对或取非的概念为NONE。就是说它们可以包括全部100。所以有可能全部动物眼睛都会受HOLE伤害。即C可能对，也可能不对，不是MUST BE TRUE。故错。
D). A single wavelength of sunlight can cause severe damage to the eyes of most species of animals错的原因：也是容易选错，因为原文的最后一句话加上中文对MANY和 MOST（都是很多）的理解。其实MOST（多数）是指51-100。MANY指1-100。所以不能从MANY推出MOST，从MOST倒可以推出MANY。即原文用MOST，D选项用MANY，则为答案。
E). Some wavelengths of sunlight that cause eye damage are more likely to reach the earth\'s surface where there are holes in the ozone layer than where there are not, 从原文最后两句话可知完好的臭氧层滤掉了部分有害的光线，则说明有洞时，有害的光线更易到达地球。故对。
最后强调一点该问题虽然是MOST STRONGLY SUPPORTED，但不会出现两个能从原文MUST BE得出的答案，因为该题归为MUST BE TRUE题型，当然不存在支持的程度问题。
在C选项中说SOME相当于many, 相当于指1-100的范围. 那么我们是不是可以得出 some=many呢. 我在做题的时候碰到一个疑问, 问题如下:
Extinction is a process that can depend on a variety of ecological, geographical, and physioligy, variables. These variables affect different species of organisms in different ways, and should, therefore yield a random pattern of extinctions. However , the fossil record shows that extinction occurs in a surprisiingly definite pattern, with many species vanishing at the same time.
问题是: 哪个选项正确,能够部分解释上面的现象:
答案中有一个选项: some species become extinct because if accumulate gradual changes in their local environments.
这个选项是错误的,OG中解释是 this explanation addresses only some species, not many species. 也就是说SOME和MANY的范围是不一样的.
我个人认为: all>most>many>some> a few 和 a little.不知道这个观点对不对. 在字典中, many是许多的意思. some是一些和少许的意思.两者的范围我认为不一样的.
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