In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's trying to metabolize, or render harmless, the chemical that is irritating it.
(A) trying to metabolize, or render harmless, the chemical that is irritating it
(B) trying that it metabolize, or render harmless, the chemical irritant
(C) attempt to try to metabolize, or render harmless, such a chemical irritant
(D) attempt to try and metabolize, or render harmless, the chemical irritating it
(E) attempt to metabolize, or render harmless, the chemical irritant
首先来用排除法做一下这道题
分析： 排除B，try后面不跟that从句
CD排除，attempt和try重复，犯了GMAT简洁性原则的大忌
AE对比 the chemical that is irritating it不如the chemical irritant(irritant在这里是名词)简洁，化学刺激物
就比如在GMAT中我们有这样一条公理 - is (are) adj. 必然要换为adj.+ n.的名词短语结构, 举个例子： a girl who is nice 必然要换成a nice girl.
因此，此题选E
但重点来了，这个句子是不是怎么读怎么不顺，该如何理解呢?
让我们来分步走：
第一步
先来一起解决一些生词问题
二恶英：dioxin metabolize:新陈代谢 virtually:事实上，几乎
第二步
补充省略部分
In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's attempt to metabolize, or render harmless, the chemical irritant.
--- 这里的省略了动词不定时中第二个to：to metabolize, or to render harmless the chemical irritant.
完整句：In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's attempt to metabolize, or to render harmless, the chemical irritant.
第三步
看出that从句中the chemical irritant的共用
hat从句的理解：将其还原后为：that are the organism's attempt to metabolize (the chemical irritant), or to render harmless (the chemical irritant).
第四步
render倒装句的理解
render是vt，正常语序为render sth. adj. 意为"致使某物怎么样了"。看到vt后面直接形容词，就想到这个sth(the chemical irritant)可能因为长度太长被倒装到后面了。
语序应该改为：or render the chemical irritant harmless.
第五步
解析that从句
that指代的enzymes，后面结构是对enzymes的解释。
有机体生产酶是有目的'的(attempt在这里翻译成目的)，其目的是用来代谢化学刺激物，或者使这种化学刺激物无害。
第六步
整句完整翻译
在几乎任何动物物种的各种组织里，二恶英都会刺激生成酶，有机体生产酶是有目的的，其目的是用来代谢化学刺激物，或者使这种化学刺激物无害。