A：BF1不是position，基于“because”，BF1应该是支持某个position的原因。
B：你看选项怎么说的：BF1 in support 了，BF2也在 in support，不对啊，原文的however说明两者显然对立嘛。
C：BF1是explanation没错，BF2用来支持BF1，错了啊，对立的。
D：没错
E：都however了，哪可能BF1是argument defends的内容，显然是反驳的啊。
错选B,原文：Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees. 选项：almost 。正确A，原文定位“ike brown bears and polar bears, sloth bears are easily provoked to aggression.”
D. The locomotion of black bears is significantly more efficient than the locomotion of sloth bears.（因为black bear行动比sloth bear更efficient，所以black 可以行动了不代表sloth就可以了，可以削弱作者idea）
E. The habitat of black bears consists of terrain that is significantly more varied than that of the habitat of sloth bears.（与题干逻辑方向不符：变成加强，black bear领域更复杂都会自己走了，那么sloth bear领域更简单的，应该也会走了）
B选项：因为production is expected是被动语态，所以逻辑上production是expect的宾语。根据本选项的内容，expect身后还有一个宾语从句，即，that it will double by the end of the year。这会使得expect相当于带了两个宾语。这是不合乎逻辑的，只有表达“传递”类的动词，才可以带两个宾语（诸如give pass等等）。
如果kimberlite包含了G10 garnet，则这个kimberlite有很大可能是经过Dimond-stability field，因此可能有钻.原文“ For example, G10 garnets, a type of garnet typically found in diamond-rich pipes, are lower in calcium and higher in chrome than garnets from barren pipes. Geochemists John Gurney showed that garnets with this composition were formed only in the diamond-stability field; more commonly found versions came from elsewhere in the mantle.”
文章说的是质疑在进行GDP分析的时候没有把非科技的因素包含进去.错选A，注意A说的是【GPD增长】的原因，但是在通过这两句话①“Thailand's recent economic growth, as reflected by its gross domestic product (GDP) growth rates”②“Yet by focusing solely on aggregate economic growth data as the measure of Thailand's development”可以知道，作者并不认同以经济增长数据——【GPD】——衡量泰国的发展。因此本文就更加不会解释【GDP增长的真正原因】了。所以A错误。正确D，这篇文章的assumptions是只有科技进步带来的发展才是有益的，非科技对进步是阻碍。这样的前提假设是不对的，文章在批判它
sum of all even integer 1 to 301 = 2 * (1+2+...+150) = (2*150*151)/2 = 150*151
sum of all even integer 1 to 99 = 2 * (1+2+....+49) = (2*49*50)/2 = 49*50
错选D，错误在于表语上，因为选项的主语是rate，是一个比率，而表语是half，在逻辑上比率只能是50%（50percent）而不能是一半，即，我们可以说：
the rate of mainstream American businesses failing is 50%.
但不能说：
the rate of mainstream American businesses failing is half.。
正确E，真正要求严格平行的，只有both...and...等寥寥的“平行触发语”。类似于but，and，or，while等等连词并不需要所谓的严格平行。
A study on couples' retirement transitions found that women who took new jobs after retiring from their primary careers reported high marital satisfaction, more [so#reported high marital satisfaction#] than [those#women#] who retired completely.
In this case, the "so" refers to "reported high marital satisfaction."
RULE: if it's not a specific NOUN that can be replaced by a PRONOUN (usually "it"), then use the all-purpose replacement "...so".
more than的题还是要重点关注平行，前句是 woman who took...after.... 我们期待的平行的比较是... who....
全文的结构是首先点明短期价格促销的弊端，然后第二段开头的so why do companies spend so much on price promotions? 来引起讨论，即既然有那么多不好的地方，为什么还要采取这个策略呢-->E
错选了C：justify：证明…正确（或正当、有理） to show that sb/sth is right or reasonable
但是全文来看作者对这个strategy没有明确的支持和反对的态度，所以第二段并不是在justify，而是说这个策略的某些好的现实意义
* "have a disinclination to recognize" is wordy/unidiomatic, and is definitely inferior to "are disinclined to recognize".
* if you're going to use "while" with an adjective phrase (while willing to...), then that adjective phrase should precede the main verb.
i.e., many people, while willing to... , are disinclined to...
* there's also a slight change in meaning.
"recognize that their ... skills are weak" just means that the people should know that they have weak skills.
"recognize the weakness..." means that they should actually be able to point out the specific weakness.
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【转载】做这道题，首先要按绝对错误层级与相对错误层级划分
绝对错误
1.RUN-ON 排除E选项，E选项用众多修饰干扰视线，没有出现主语
2.逻辑不合理 排除D，B选项
B选项核心词变成a tripling，一个三倍是由于技术变革？当然不对
D选项结构是：同位语，SVO；失去了转折词，错误这个时候来对比AC，都没有语法上绝对的错误
相对层级
1.歧义
C选项有平行歧义，后面的improvement到底是和前面的fuel平行还是和charcoal‘s being replaced来平行呢
2.冗长
且C选项charcoal‘s being replaced by coal较于A选项的coal replaced charcoal冗长
择优选取，本题答案A