In the sentence as written, the singular subject the disappearance of . . . and the plural verb seem do not agree in number. It does not make sense to say that the disappearance is inevitably doomed; presumably the sentence intends to suggest that the lifestyles themselves are inevitably doomed or perhaps that the disappearance of . . . these lifestyles is inevitable.

be liable to do 有做某事的倾向，后面通常是不好的事情，liable通常是指法律上或者义务上的那种倾向；
be likely to do 很可能做某事，用法更general一些

Liable 'as per custom' is used only to denote some bad things. It is not used in such cases as when somebody turns to some normal course in the ordinary of business of life. First dump C and D. In E, the pronoun 'its' has no antecedent. A and B use correctly the appositive 'conflicts' to pinpoint the possible damage by the feuds and therefore are the contenders. B uses both 'when' and likely will' for a simultaneous occurrence of the cause and effect.

我有一个疑问，A选项这里比较对象many species of dinosaur 和a warm-blooded mammal’s (metabolism), a cold-blooded reptile’s(metabolism)为什么是一致的呀

y=kx+b，已知k=-1/10，不知道b就知道到底相交还是不相交。要求b，需要另一个方程式，题目只给了y=0时，x>1，算不出b。
求一下x=1时直线与圆的相交情况，因为斜率已经固定，把求出来的直线向x>1的方向平移就能看出x>1后，直线与圆的相交情况。

这题是要削弱k的论证，方法之一就是他因论证， 有意思的是他因h这个人已经给了。 所以答案是 k没有考虑到h给的这个他因。

平行的主从句才要求平行
Dthe rate of mainstream American businesses failing
应该用fail的从句来表示 failling 在这里是主要的 核心意思

rc
简单题
定位题干关键词“nuclear polyhedrosis viruses can remain virulent ”-》“ if protected from direct sunlight, they may remain virulent”

as换成by的话 a选项是对的吗？

rc
定位，一句话解题：
but population ecologists had usually considered viral disease to have contributed to the decline once it was underway rather than to have initiated it.

rc
b引入他因；
且他因是前面premise的否定，这在rc中的逻辑分析是可以且常见的。直接否定了“opulation ecologists' attempts to alter cycles by changing the caterpillars' habitat but failed”
说了“New experiments in which the habitats of lepidoptera are altered（ in previously untried ways） result in the shortening of lepidoptera population cycles.”

/D/ 加粗内容不是evidence，而是解释

rc
定位关键词“ mortality，measure”题干
The common approach of studying causes of population cycles by measuring the mortality caused by different agents, such as predatory birds or parasites,

only Pierre (1852), because of its subject and its characters, is close to being a novel in the Jamesian sense.
ONLY这个词说明James的评判标准太过度了，以此来打击james的观点。

rc
主旨题，
一个现象，提出假设“选项：present a hypothesis about the driving force behind population cycles in lepidoptera”
第一段总结句In short, the evidence implies that these insect populations, if not self-regulating, may at least be regulated by an agent more intimately connected with the insect than are predatory birds or parasites.
第二段“may be”---Recent work suggests that this agent may be a virus。
最后一段One of the attractions of this hypothesis is its broad applicability.

embryogenesis 胚胎发生，指向第二段

晕_(¦3」∠)_，选了E

读反了，啊呀

rc
a.give an example of how the nature of amber has been misunderstood in the past举出一个琥珀在之前如何被误解的例子：P的看法是正确的，没有误解琥珀。
b.point out an exception to a generalization about the history of people's understanding of amber指出一个 在人们对琥珀的理解中的例外：P与世人认为的不一样，所以是一个例外
不要看到give an example就去选，都有很多陷阱，问的是poliny一个提出正确观点的人；所以看选项一定要看全，尤其是后半句，不要只根据前面的几个词定性

定语不是主干成分/核心词问题。
C选项：that will run...是trucks的定语从句，那么主干成分为“UPS转变卡车”，但逻辑上来说，应该是转变汽油卡车变成天然气卡车（双宾为主干成分，而定语不是）。