plausible adj.貌似正确的
差点错了

evaporate continental 明明背过这两个单词 看题的时候反应太久了！
！题目定位：isotope method的优势：①取出来的样本specimens的变化小②相比从陆地、岩石上取出来的更加continuous
注意理解选项：have far more gaps in its sequence...

状语和定语均属于修饰成分，均具有就近修饰的原则。本选项中距离这个条件状语最近的句子是when they do appear。但是，在逻辑上，该条件状语应该是be committed to的修饰语。

cooperative and organized 平行，修饰society，consisting做society的状语，表示society 由“almost entirely of females”组成

其中并没有指明是谁发出need这一动作。这是不正确的。显然地，划线部分应和主句保持一种修饰关系（因为独立主格是状语，修饰它的主句），只有“保险公司”不需要从规定者的手里获取批准，才能和“保险公司”现在可以自由地收取费用了形成修饰关系。

**They worked so as to feed themselves and they prayed so as to save their souls.
**Older production technologies cannot be adapted so as to reduce production of these outputs as waste products.

where引导的定语从句的先行词必须在从句中作状语而不能作主语，因此动词discovered缺少主语
where=介词+which

**(idm 习语) //by virtue of sth//on account of or because of sth 由於或因为某事物: He was exempt from charges by virtue of his youth/of being so young/of the fact that he was so young. 他因年幼而获得免费.
** New regulations have imposed extensive compliance costs on companies still using older industrial coal-fired burners that generate high sulfur dioxide and nitrogen oxide outputs, for example, whereas new facilities generally avoid processes that would create such waste products.

B选项是一个independent clause, 为什么与前句连接可以不加连词？

A is employed as B的意思是：A被雇佣为B，A is employed to be B的意思是：A被利用为B。

大规模农业化-破坏自然植物-大象的食物减少-强迫他们吃庄稼
计划：大象庇护所的建立可以提供足够多的植物给他们吃
结论：计划无效，袭击还是会发生
B．袭击还会继续因为即使大象不吃庄稼了依旧来回跑破坏。
D 比起野生植物，大象更加喜欢庄稼。
两个选项都会导致破坏
在看下结论：the raiding would likely persist. 这里的raiding袭击指的是大象吃庄稼造成的农民伯伯的损失惨重。
B不吃庄稼肯定比还要吃的损失小，应该不能构成raiding
D题目中说是农业扩张了，以前大象没有吃过庄稼，吃过后发现他们prefer庄稼than野生植物，即使有了庇护所，他们依旧会像以前一样。
D

c的解释感觉很牵强

This sentence describes concern about a potential problem, which is
appropriately expressed in subjunctive mood (could be damaged).
C. Correct. This sentence correctly uses the subjunctive mood to express a //potential problem//, and the idiom// at a time when// is correct.

老师，A选项的比较，是省略了Be动词嘛？some analysts previously thought the economy was weak？

**出现了比较级的时候最直接的就是加个than表示比较，再添什么compare之类的很awkward
**D.because the phrase beginning with /that/ immediately follows /almost 20 years earlier/, it seems that// the time period// is being described as having been the all-time high //consumption.//==》把时间修饰成consumption
**E.compare the United States’ water usage in 1998 to a period of time, namely the period of all-time highest consumption
almost 20 years earlier==》错误比较
典型的比较对象问题！

和one of XX that （that修饰XX搞混了）……

But because complex species interactions may be involved, identifying a keystone species by removing the species and observing changes in the ecosystem is problematic.

problematic！！！

补充：B. Correct. This form of the appositive is the most efficient way
to express the comparison. Depending on when the sentence
was written and what the writer intended to express, the verb
form could be either had contributed or has contributed. The
use of has contributed implies that, from the perspective of
the sentence, the comparison between German-born U.S.
residents and those from other countries still holds true.