unexpected findings = "productivity paradox"

1、resulting from前面不加逗号可作形容词修饰语
if something results from 'X', then 'X' happens FIRST.
in the structure 'sentence + , + __ing...', the modifier NEVER describes something that happens before the main sentence.
2、*Noun/ noun phrase + resulting from + noun/noun phrase
---> "resulting from" modifies only preceding noun / noun phrase.
3、句子中除了loss没有随后发生的动作时点，用一般现在时。
4、SVO, because of + noun/ noun phrase
----> "because of" can modify the whole clause preceding it. That's why the usage of "because of" can totally convey intended meaning of the sentence.

1、* "prescribing privileges" is better than "the privilege to prescribe / privilege of prescribing", especially if the latter is placed at the end of the underlined part (as it is in choice a). the problem with the wording in choices (a) and (d) is that it's ambiguous: "...the privilege of prescribing to ... psychologists" could be taken to mean that the prescriptions themselves are being written for psychologists.
2、* "prescribe drugs for their patients" is much better than "prescribe their patients drugs" (which would be fine in spoken language, but is at best awkward and at worst ambiguous when written)
3、Forbid X TO do Y is correct usage on GMAT

Prohibit X doing from Y is correct on GMAT

Forbid takes "to" --> infinitive form of verb

prohibit takes "ing" -->
4、in context, it's clear that "historically" is describing the verb "have been forbidden".eliminate DE.
5、begin to do &begin doing没区别

reduce后面跟的应该是平行的，排除CD
A中的suffering逻辑主语是祖先，不是祖先减少了数量，排除
E的so as to主语是祖先，排除

The conflict between the guilds was not purely economic, however.

有两种seamstress，一种是tailor的女性家属并且被视作是tailor所雇佣的员工，另一种是seamstress协会的女性裁缝。前者被视为“附属”，而后者则被视为是独立的象征。
问题问前者的特点，故不是E，而是D。E是后者的特点

seamstresses, meanwhile, were impatient with the remaining restrictions on their right to clothe women.

1）evidence 后面接 that clause，作 evidence 的同位语句，解释说明 evidence；
2）时态：340,000 years ago = 时态关键词，所以动词 explode 用过去时；
3）修饰语 as bright as the full moon 修饰 star，意思是 ...的星星；
4）doing sth. 放句末，作结果状语，其逻辑主语为 a star exploded into view 340,000 years ago

A：evidence that 引导的从句结构不完整

【have long been recognizing】wrong 完成被认定这件事不可能持续进行；
D：【and】平行标志，while HH is identified with ……，scholars have long recognized him as a ……and a……【and】 he was…… 从平行角度考虑此时and后面用现在时态(或将来时)；从语义考虑 用who 从句限定修饰 versatile artist 非常合理！

错选B, 完美忽略单复数；；
【their】对应【all】【have been】
【when】暗示划线部分结尾要放时间
【from】、和【when】--redundant

A:【 could 】- The tree is able to produce in the past and not anymore. This sentence is talking about a general phenomenon,一般现在时表普遍的性质或现象，更优；in that只能表达很弱的关联性，没有because的因果关联性强；
B：The tree is not 【dependent】 on anything. The production of Berries depends on the size of the tree and climate and altitude.
Verb-ed modifier can only modify the closest noun. 过去分词只能就近修饰名词
C：The sentence fragment "depending on both its size and on climate and altitude" 分类平行结构【its size】and【climate and altitude】✔
D：【 being】 is not required -> remove the being and change 【dependent】 to depending -> the sentence is great. 【of producing】表intent用不定式；
E：【dependent】错，【as well as】删去句子结构不完整，【could】改为一般现在时。

describing an evolutionary phenomenon and speculating about its cause
the actual relationship between these environmental factors and the diversification of life forms is not yet fully understood

正确选项：在v地经济很好的时期，有25%的当地小孩子都上的私立学校，而且私利学校还特别贵。这里给了我们足够理由去认为等到经济不好的时候，25%孩子中至少会有一些去上公立学校，因为免费啊！！，从而确定了公立学校确实需要更多老师。加强了argument. （取反，如果在经济很好的时候，也没多少人上私立学校，那这个公立学校免费的规定也没什么用了，因为没办法吸引更多新学生去上了。所以给出了25%在上私立学校这个数据其实就是想点明目前上私立学校的学生还是很多的，那么意味着等下经济了有足够的人会去上公立）

concede the possible existence of counterexamples to a generalization承认反例可能存在

succumb：v. 屈服; 屈从; 抵挡不住(攻击、疾病、诱惑等);

1) Pronouns - The opening of the sentence states that "In a blow to THOSE…."; here, the word "those" is a pronoun. In the answers, we see that some have an extra pronoun and some don't. Since we already have a pronoun, we do NOT need another pronoun immediately next to it. That extra pronoun is redundant (and unnecessary). Eliminate A, B and C.
开头句those后面不能跟代词，否则重复

2) Verbs - Between D and E, we have the verbs "enables" (present tense) and "will enable" (future tense). Since the watchdog group "recently uncovered the trick", we're dealing with something that's happening in the immediate present. The verb "enables" is required here. Eliminate E.
【recently uncovered a trick】已经发生，后面用【will enable】不妥

A.因为医疗中心是政府的，所以减少烟草使用导致的烟草税下降和因为烟草引起的身体健康医疗费开支的下降相平衡，政府就负担得起了
看着这个答案：这也行啊阿sir？

little可以做名词

H/AS VS AS/H, 分母变大，分子变小

条件：
H>S
H/AS=95%

1、状语修饰主语，排除ABC；
2、D makes a wrong conparison between earnings and the previous quarter,排除D.