whether A and whether B平行结构，时态平行emerged vs left。whether和if连用错误，另外if有歧义，表是否应当用whether

as引导的是原因状语从句，while逻辑关系错误。主干是：companies have downsized

没有定位成功。。应该顺着study往下找答案而不是被proposal吸引回去找答案

“heir retinal cells are also not excessively sensitive to red components of moderately bright light.” 就是normal sensitivity
就是他们对红光跟对dim light 一样 不过分敏感，就是可以识别
还是感觉gwd的题没有prep正

land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household's duration of residence in its village. 从这句话推理得出

本文没有说成功性，说的是影响proposal被接受的程度的因素。欠练

on condition that意思是“在...情况下”，通常表示一种虚拟的情况，虚拟语气be used

allow A to do B，句子不可以用介词结尾

第二次对了。。

文中没有明确否定或者肯定H的观点，只是根据H以及B的观点不断的给出assumption，说明问题并没有解决

注意转折词but，代表H的观点与前面的不一致，前面的内容是Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat through friction as they grind past each other，D几乎就是这句的同义改写

A错在单复数！new findings n.复数，注意细节。另外indicate that不是that indicates

Conclusion: a more sensible preservation strategy...
If you know this conclusion, you would not say that the goal of the environmental organization is "ill conceived." Pay attention to details: their first plan is ill-conceived, but not their goal.
For the second BF, it is a judgement "Someone will/will not do something." The author uses the 2nd BF to support his conclusion for a better strategy.
https://forum.chasedream.com/thread-534739-1-1.html

第一句是一个发现，锁定finding，第二句是对发现的反驳

问题解决型，
第一段：提出问题
Compared，对比，present VS RLB，
Higher， 对比， 远古的牙齿更破损、
第二段：分析解释原因（远古的tooth破损更严重的原因）
Bias*3 ,平行排比，解释研究方法
Most，提出结论，远古和现在，tooth不同，-是因为远古和现在，behavior difference
more，对比，解释结论 behavior怎么个difference法，more contact in tooth和bones（因为竞争大，没有肉吃，只能一直去啃骨头，--牙齿破损严重）
prey和predator数量的不同：可能1）predator竞争激烈，尸体多 2） prey少，

one of every 和one out of every 是否有质的区别？

解析不对吧？

D中的they指代歧义，可能指rates。

美国人写的，north America不在overseas里面。。想了半天逻辑。。

选项分析里面，C选项，只有such as 能表示举例，不是表示距离。哈哈