namely是副词，不能连接两个主句：
namely that 从句

这道题不看省略, 而是毕老师说的, or, but, and的parallel是成分parallel, E的前后都是名词成分的parallel, 所以是对的.

句末代词split没有看到所以错选a

- if n is not divisible by 2, then n is odd, so both (n - 1) and (n + 1) are even. so the product (n - 1)(n + 1) contains one multiple of 2 and one multiple of 4, so it contains at least 2 x 2 x 2 = three 2's in its prime factorization.
- if n is not divisible by 3, then exactly one of (n - 1) and (n + 1) is divisible by 3contains a 3 in its prime factorization.
- thus, the overall prime factorization of (n - 1)(n + 1) contains three 2's and a 3.

E当中what it did错误，the growth of the global economy就是个名词，它没有did sth～

proportion比较，用it/that。 而不是they /those；同类不同体，用that

主句“遵守”是否发生不影响laws的定语requiring xxxx，所以不用不定式。句子的名物化是之前没碰到过的点，需要关注。

Ron说，E错在两点，第一：时态不对，过去完成时表示leaching是过去的办法，现在不用了，但句中并没有表述这种意识； 第二，well established不应该作为非必要修饰语，个人理解从这个句意出发，前半句说这个方法好，后半句说发现这个方法的缺点，well established作为非必要修饰语，就削弱了整个句子的转折意味。

you can only say "X results in Y" when X is an ACTION. if X is an OBJECT, you can NEVER say that X "results" in anything.
this kills choices (c) and (d), in which "stinger" is the subject of the verb "results".

evaluate题，把whether换成yes/no再进行判断

目标：boost its profits

目标：boost its profits

endure是忍耐的意思，若e就是被忍耐了

错选C，在这里but only one的修饰关系是不清楚的，Theorems/Mathematicians

个人感觉，一方面，应该是a reliable supply of water和good growing conditions并列。the combination of 后面肯定有两个事物A和B，如果water和good growing conditions并列，那么，the combination of 后面就只有一个事物 a reliable supply，这样讲不通；另外a reliable supply of conditions逻辑上也似乎讲不通。 另一方面，就of。。。and结构而言，sth of A and B没问题，但sth of A and of B 似乎说不通，而用sth of A and that/those of B可能更合适

(E) contains an unidiomatic “found X as Y” rather than“ found X to be Y”.
另外，原句中有but的转折关系，在E中丢了，还是要注意一下的（虽然我觉得好像并不存在转折关系……）

choice ABC:作为状语的 介词宾语结构中的核心词都是possibility。导致语意出现了变化：除了可能性，叶子还能减少心脏病和中风的危险
choice D,也是介词宾语结构作状语， possible 做形容词修饰动名词 preventing,inhibiting 。但问题出在of some forms of cancer，语意是某些形式的癌症所拥有的预防和抑制

on condition that... 虚拟语气

focus on sth ...和have sth as a focus的区别

形容词做名词定语时，必须前置于名词