读懂题干！削弱budget-deficit对discrepancy的解释！
discrepancy即manufacturing的productivity增长了，而service sector的productivity却下降。
budget的explanation是说因为interest rate的上升导致的：第三段第一句说利率越低，投资越好，productivity就高，所以现在service sector的productivity低就是因为利率高造成的。
E选项：利率对manufacturing和service sector的影响是一样的，也就是不会出现一个growth了另一个却decline，就weaken了budget这个解释

读懂题干！削弱budget-deficit对discrepancy的解释！
discrepancy是指为什么manufacturing的productivity增长了，而service sector的productivity下降。budget的explanation是说因为interest rate的上升导致的，第三段第一句说道利率越低，投资越好，productivity就高，而现在service sector的productivity低就是因为利率高造成的。E选项正确在于，它说道利率贵manufacturing和service sector的影响是一样的，也就是不会出现一个growth了另一个却decline，就weaken了budget这个解释

C：intending从语法上修饰的是propose这个动作，而实际上应该修饰的是steps

注意要看准从句到底修饰的是紧挨的名字，还是紧挨的名词前面的！（因为有名词➕介词词组）然后再单复
根据此可排出AC
另外根据another和in addtion的重合排除D
另外，根据in order to排除B （in order to是表示最终目的，而不是描述做了什么：如 i took 4 days in order to finish the work 错 i took 4 days off work in order to finish the work对
另外，B相比于E，that的用法容易误以为在修饰shots

注意不要用S-V迅速排除B ，因为B的主语和A不一样；
A：provisions of 和provide重复；they的指代很不明确（相比之下B的it指代很明确）
C；仿佛islets是stimulate的主语，但实际不是
另外，注意句子的重心是code

study后面应该跟conducted by不应该直接跟by，排除AB
C项 underwitten紧跟programs修饰对象错了，应该是study
E项 没有必要在分出来一个小句，D项就很好

正确的固定搭配是from from A to B，to改成into不正确，flow out from A to B多了一个out是没有必要的
E项
1）still放在there are前面的这种用法不好：这里表达的是【转折】意，而前面已经有despite了，而相反D项的still放在there are后面，表【仍然】意
2）把despite……摘出来前后加逗号，使它成为了non-essential modifier，这是不对的，因为这个部分很重要

not so much A as B 固定搭配"与其说……不如说……"

只能从语意上将就着理解了。。。
a possible workshop一个可能的工厂
what might have been a workshop一个曾经可能是工厂的地方

The reason that "hopefully" is wrong isn't that it's just a "bad word" - it's that it's an adverb, which modifies the verb that it's next to. Here, that would mean that "the use of gravity waves" will "hopefully enable". But because the gravity waves are inanimate, they can't "hopefully" do anything...that would require them to have hope! "It is hoped" removes that direct tie to the subject and verb, so it's then open to some human entity to have the hope, which is more more logical.
it is hoped 表客观，ETS prefer
hopefully 表主观，GMAT中一般为错误选项
hopefully meaning "i hope that/let's hope that". This is an informal expression, and is generally avoided in writing.

C项 overlook后面不能跟that从句，another one指代不明
E项another such disaster解决了C项指代不明的问题，可见成分复杂一点不一定就错

D项 were是increase的谓语，应该用单数

请问AB项都可以用added的逻辑主语是employees来排除吗？

关注E的标点符号问题：
关于插入语的逗号问题，Ron是这样说：
the man who showed up yesterday is back again --> ok (meaning = there is more than one man, and i have to clarify that it's the one who showed up yesterday)
the man, who showed up yesterday, is back again --> ok (meaning = we already know which man; i'm merely providing more detail)
the man, who showed up yesterday is back again --> not ok
the man who showed up yesterday, is back again --> not ok

D和E 是过去分词短语作非限制定语，不是非限制定语从句！
过去分词短语有时也可用作非限制性定语，前后常有逗号。
比如：The meeting, attended by over five thousand people,welcomed the great hero.
他们举行了欢迎英雄的大会，到会的有五千多人。

终于搞清楚了！
这个题考的是 动名词做结果状语，强调一种必然的因果联系。要和动名词做伴随状语区分开来，说伴随状语表结果是不对的。
作结果状语 选A　　
e.g. His friend died, getting him a lot of money, 他的朋友死了，（所以）给了他很多钱。　　
（注：动词不定式作结果状语通常表示一种出乎意料的结果，常在不定式前加only或never用来强调惊讶或失望；而ing形式作结果状语强调一种必然的因果关系）
这道题如果理解成伴随状语不对，因为伴随状语主句和从句的主语必须是一样的， 而 sea eagles 接谓语动词bring 是不合逻辑的。
同理，BE 做平行来讲主语与谓语也是不合逻辑的！

and also to a geographical isolation greater than that of many other Native American groups, an isolation that limited both cultural contact and exposure to European diseases. 细节题定位定位定位！！！

定语从句中，that 是关系代词，不是指示代词，所以和名词的单复数没有关系~
在比较结构中，that只能指代单数！

区分2种情况

注意GMAT中consider和deny一样用双宾语，直接加n/ adj , 如果加to be/ as都是错的 （有时候consider A to be B可能是正确的）
而Regard X to be Y错, regard X as Y对

tips:可以根据consider= regard as 来记忆，我们用regard as来替换consider的话，那其实已经有一个as了，不必要再用一个as
但是在GMAT考试中，永远不要出现“某某某结构或搭配必错”这样的侥幸心理。这是一个逻辑的考试，不是语法或记忆力考试。

本质都是洗衣服的三个步骤，可以拆开来看：
When in doubt about parallelism, better strategy is to break up the sentence

For centuries, people on sea voyages washed their clothes by placing the dirty laundry in a strong cloth bag

washed their clothes by tossing it overboard,

and washed their clothes by letting the ship drag the bag for hours