Mark：choice (d) uses "this" as a standalone pronoun. that's pretty much never acceptable in a formal written sentence.
if you're going to use "this", you should use it as an adjective: this thing, this finding, this statistic, etc.
B选项：在语法上，同一个代词的指代对象应相同。但在本选项中，them应指代benefits，而themselves应指代employees。
themselves--wordy, unclear; 'to themselves' modifies pick or most important of them;
C选项：themselves--wordy, unclear; 'to themselves' modifies pick or most important of them;
D选项：are offering...and letting...;
E选项：同D；同C
可直接排除B,C,E
A 中的观点E.F有明确的提出
D中的观点G有明确的提出。但G在第二段只提出了这样一个有关于女性作用的观点，所以以G的观点为基准选择D
→其实可以把这种题同CR的point at view题型相结合起来，用一个人的观点或者结论去筛选答案选项，再用而第二个人的观点筛选剩余选项
以G的观点，A,B,C,E,都可以被排除
A选项：to distinguish.../ to make...公用一个介宾结构，需要满足平行结构；the ability of sb to do sth;
C选项：'the result of this' is a new subject, which needs a new verb; they are unable to...--wordy and awkward;
D选项：and results in not making不满足平行结构；
E选项：the ability of sb to do sth;
A选项：减少（reduce）的宾语不正确。最终的目标应该是减少表达不满的顾客的“数量”，而不是减少顾客（顾客本身没法被减少，只有顾客的数量可以被减少）
B选项：with the goal of doing✅with the goal to ❌
C选项：with the goal to reduce expressions of overall dissatisfaction by the guests with the hotel service中with the hotel service应该放在 overall dissatisfaction之后；ultimately with the goal－awkward, better phrase is 'with the ultimate goal'
D选项：that ends up修饰guests;
DE选项：consequently...therefore; because...as a result--redundant expressions;
B选项：a thick needle layer没有所有格a thick layer of needles表达准确，layer of needles明确指出the layer is composed of needles rather that being；from where这个表达是不正确的，要么直接用where，要么用from which。
C选项：主谓一致：protect的主语的核心词是a thick layer，所以应改为protects。’withstand relatively well any forest fires‘中间夹的relatively well副词使句子不优；
og上说破折号后面需要保留that,才能是意思变清晰；
A选项：reducing their numbers是伴随状语，其逻辑主语应该为其所修饰的句子的主语，即，our ancestors suffered an event的主语
C选项：at some time; 划线句后是由and引导的名词短语，省略动词，和其前面平行，所以应该是reduce their numbers and thus our genetic variation。
D选项：that; at缺；同C❌；
E选项：缺that at; so as to目的是，与语义背离；
分词短语causing only a mild illness是伴随状语，其主语为它所修饰的句子的主语，即，experimental subjects。排除BD
A选项：由于they are immune from smallpox是一个虚拟的情况（be immune to✅），即，它是存在于“实验者感染cowpox”的情况下的，因此，其应该用虚拟语气，即，they would become immune from smallpox。
A选项：sth be expended for ❌；sth be expended on✅；and when...不平行；'they' refer to ?
B选项：平行结构；
C选项：constructing and decoration不平行；
D选项：enshrine珍藏，铭记，对象应该是temple;
E选项：temple与enshrine之间是被动的关系；
A选项：Having been named 开头，表示’named for a mythological nymph‘ is preceded the discovery of Ida.
C选项：没有谓语动词
D选项：’to orbit the Sun between Mars and Jupiter‘ 作为the belt of asteroids to orbit 的后置定语，（你不能说，ida在小行星带后，触发了这些小行星带环绕太阳吧？这两个事件均是客观事实，不存在谁触发谁）。因此，只能用that orbit the Sun between Mars and Jupiter这个从句的形式。
E选项：同D；an asteroid discovered in 1884 和which was named for a mythological nymph who cared for the infant Jupiter不平行。这是因为，前者是同位语，后者是定语，两者的功能不同（如果两者都是定语，则可以平行），所以不能用and连接。
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Mark：choice (d) uses "this" as a standalone pronoun. that's pretty much never acceptable in a formal written sentence.
if you're going to use "this", you should use it as an adjective: this thing, this finding, this statistic, etc.