相关→因果

相关→因果

B:that would control限定修饰a new company
A: 表目的用for doing 还是to do，后者更优；另外，forming现在分词作状语表随之而来的结果，后面又跟个目的，是否合乎逻辑，心里打个问号。

相关→因果推理

因果推理
P: The virus will infect bilby, an endangered native marsupial.
C: Using the virus will increase the threat of native wildlife.

C选项说明在用virus之前bilby就已经被兔子威胁到了，用virus会同时感染bilby和减少兔子数量，正负作用都有，不能说一定增加威胁

果因推理：
P: the number of female adults sea turtles coming back to lay eggs has increased since five years ago.
C: the chemical spill five years ago wouldn't decrease the population of sea turtles.

B选项说海龟10岁才回来产卵，所以这五年过来产卵的海龟至少都是chemical spill之前一年出生的海龟，提供了它因：这五年回来产卵的海龟数量增加是因为chemical spill前五年出生的海龟数量增加，而不是因为chemical spill对海龟数量没影响

比较的是level，另外A中than 后面跟were向前找不到对应平行结构。

主谓一致，排除DE；
时态：C选项现在进行时的被动语态不好，A一般现在时更优；
代词：B-programming them指代不清；
结构：C-but和instead语义重复
语义：比较A和B,本句想要比较的到底是什么呢？are programmed to work vs. learn to work.

B其实偷换了概念，原文说的是牙齿上的heavy enamel，B直接替换成了micro-wear patterns

with plenty of bumps 里的with有“有，用，和”的意思，不如have来的清楚。although应该是可以省略主语和be动词的（如果主语和主句主语一致）。

E 我觉得是any indication太过于绝对了…… 不过这个D还真的蛮难看出来orz

they不能指代前面三个名词，因为前面三个名词不能主动预测（应该是被预测），所以这里的they没有指代对象

between 2 and 100 是 不包括 n = 2 吗？

A:Starfish是个复数，it quickly replaces it只能指手臂能恢复手臂。另外by the animal overcompensating没有逻辑主语
B:独立主格做状语修饰前方动词replaced，动物过度补偿&动物长出extra one or two。正确
C:by the animal overcompensating没有逻辑主语同A
D:If they lose one arm they are quickly replaced意思是如果Starfish掉了胳膊那么Starfish就会被替代。掉了个胳膊不用整个把Starfish替代了吧。LOL
E: E真的挺模糊的，我去英文网站上逛了一圈
In (E), “growing” has been turned into a modifier (“sometimes with the animal overcompensating, growing an extra arm or two”), and I’m not sure that it’s wrong, but it seems a little bit odd to me: when do you ever see an "-ing" participle modifying another "-ing" participle? Meaning-wise, I suppose you could argue that “growing” tells us extra information about when happens when the animal is “overcompensating”, but I think it makes more sense to keep the two actions (“growing” and “overcompensating”) parallel.

主语和宾语是同一个人时，使用反身代词，主语：employees，谓语：pick 宾语： those most important to them（对他们来说最重要的benefits，to them起修饰作用）,因此不需要使用反身代词，排除b/c/e—>d选项 are offering and let不平行—>选择a

not...but...平行触发语，必须严格对应

A: and dated at 34 million years old是定语从句的一部分修饰前方主语fossils, 与后面的made it the earliest known mammal没有修饰关系。
其次，如毕老师所说。and前面的逗号不该加，只有三者平行或者两个完整的句子的时候and前面才加逗号
B: 主谓不一致，主语fossils谓语has。they没有指代对象
C: 主谓不一致
D：对，making the sloth...作为伴随修饰前方动作have been dated.
是因为确定年纪很老才成为最早的哺乳动物
E：Which前面没有逗号错误，was主谓不一致。逗号不可以隔开主干成分主语和谓语

B的介词短语既可能修饰名词water treatment and conservation projects也可能修饰动词propose，故存在歧义，而D定语从句只能修饰名词water treatment and conservation projects，故不存在歧义，更优。

A: snow三兄弟超过amount不对，然后capable of being绝对语法错误（能够被怎么怎么样？被怎么怎么样不需要门槛）
B: snow三兄弟超过amount不对
C: amount of snow三兄弟超过amount，对
D：snow三兄弟超过amount不对
E: region 超过amount 不对

A: so as 不能单独做连词
B：ok
C: 前后并非并列关系，前方说P资助了一家图书馆，后面是在解释说明这个图书馆的特征特点
D/E：Whereby = by which

I never said that library is an agent that gathers (how a non living thing can accomplish that?)
I meant library is a place 'in which' we keep literature. So in which fits the bill