这道题最能够说明我们需要具备“切分文章”的意识，一定要“先切分文章，再对照原文”我们一起来看看。
题干：52. What enables the sea slug to live like a plant?
其余四个题干（红字为定位词，下划线黑体为背景词）：
51. What is the distinctive feature of a sea slug?
53. What does the author say about baby sea slugs?
54. What does Sidney Pierce say about genes from an alga?
55. What do we learn about sea slugs from the passage?
本题的定位词显然是enable 和live like a plant，因为是本题独一无二的，而背景词是sea slugs，
(51)When we think of animals and plants, we have a pretty good way of dividing them into two distinct groups: one converts sunlight into energy and the other has to eat food to make its energy. // (52)Well, those dividing lines come crashing down with the discovery of a sea slug (海蛞蝓) that’s truly half animal and half plant. It’s pretty incredible how it has managed to hijack the genes of the algae (藻类) on which it feeds.
The slugs can manufacture chlorophyll the green pigment (色素) in plants that captures energy from sunlight, and hold these genes within their body. The term kleptoplasty is used to describe the practice of using hijacked genes to create nutrients from sunlight. And so far, this green sea slug is the only known animal that can be truly considered solar-powered, although some animals do exhibit some plant-like behaviors. Many scientists have studied the green sea slugs to confirm that they are actually able to create energy from sunlight.
In fact, the slugs use the genetic material so well that they pass it on to their future generations. // (53) Their babies retain the ability to produce their own chlorophyll, though they can’t generate energy from sunlight until they’ve eaten enough algae to steal the necessary genes, which they can’t yet produce on their own. // (54)……
根据各题的定位词，我们可以大致将文章的前三段划分为三部分，切记是大致，因为个别时候，答案的位置可能会偶尔会突破划分的区域，但是概率极低。
做（51）题的时候，我们发现
A)It looks like both a plant and an animal.
B)It converts some sea animals into plants.
C)It lives half on animals and half on plants.
D)It gets energy from both food and sunlight.
这里的C选项已经对我们大致定位的（52）题的第一句考察过了，所以我们下一题直接从下一句看起即可。
本题（52）题选项如下：
A)The genes it captures from the sea plant algae.
B)The mechanism by which it conserves energy.
C)The nutrients it hijacks from other species.
D)The green pigment it inherits from its ancestors.
重点对照定位词所在句或者后面的句子，如果定位词所在是长句，一般答案就在定位词所在句子，对照文章：
……(1) It’s pretty incredible how it has managed to hijack the genes of the algae (藻类) on which it feeds.
(2)The slugs can manufacture chlorophyll the green pigment (色素) in plants that captures energy from sunlight, and hold these genes within their body. (3) The term kleptoplasty is used to describe the practice of using hijacked genes to create nutrients from sunlight. (4) And so far, this green sea slug is the only known animal that can be truly considered solar-powered, although some animals do exhibit some plant-like behaviors. (5) Many scientists have studied the green sea slugs to confirm that they are actually able to create energy from sunlight.
(6)In fact, the slugs use the genetic material so well that they pass it on to their foture generations.……
A选项，对应(1)句，sea plant algae = algae（海藻）；genes有；capture（捕获）= hijack（劫持），元素齐全，且有“同义替换”，正确选项。
B选项，对应(2)句，mechanism原文没有，有energy，但是captures energy，选项中是conserves energy，排除。
C选项，对应(3)句，nutrient有，hijack有，但是注意，原文中是hijacked genes，而选项是The nutrients(that) it hijacks from other species = hijacks nutrients，hijack后面的宾语不一致，基础差的同学可以直接认为from other species原文没有，排除。
D选项，根据green pigment 对应到(2)句，inherit，ancestor原文没有，排除。
正确选项是A
再来从精读的层面看看这部分：
题干：What enables the sea slug to live like a plant?
enable，使能够……；记住en-和-en是“使动”词缀。
翻译：什么使得海蛞蝓能够像植物一样生活
文段：
(1) It’s pretty incredible how it has managed to hijack the genes of the algae (藻类) on which it feeds.
(2)The slugs can manufacture chlorophyll the green pigment (色素) in plants that captures energy from sunlight, and hold these genes within their body. (3) The term kleptoplasty is used to describe the practice of using hijacked genes to create nutrients from sunlight. (4) And so far, this green sea slug is the only known animal that can be truly considered solar-powered, although some animals do exhibit some plant-like behaviors. (5) Many scientists have studied the green sea slugs to confirm that they are actually able to create energy from sunlight.
(6)In fact, the slugs use the genetic material so well that they pass it on to their future generations.……
翻译：
（1）这种海蛞蝓竟能劫持其捕食的藻类基因，实在令人惊叹。
（2）它们能够制造叶绿素——植物中捕获阳光能量的绿色色素，并将这些基因保留在体内。（3）“盗食质体”这一术语，正是用来描述这种利用劫持的基因从阳光中制造养分的现象。（4）尽管某些动物确实会表现出类似植物的行为，但迄今为止，这种绿色海蛞蝓是唯一被公认为真正意义上“太阳能驱动”的动物。（5）许多科学家通过研究证实，这种绿色海蛞蝓确实能够利用阳光制造能量。
（6）事实上，它们对这种遗传物质的运用如此精妙，以至于能将其传递给后代。
这部分超纲词汇过多，我们只关注重点词汇即可：
核心词汇：
hijack /ˈhaɪdʒæk/，劫持
capture，捕捉，捕获
其他词汇：
incredible，不可思议的
manage to，设法完成，能够
gene /dʒiːn/，基因；genetic，基因的
nutrient /ˈnjuːtriənt/，营养物质
solar /ˈsəʊlə(r)/，和太阳有关的
confirm，确认
看看选项：
A)The genes it captures from the sea plant algae.
翻译：它从海藻中捕获的基因
B)The mechanism by which it conserves energy.
mechanism /ˈmekənɪzəm/，名词，机制
conserve /kənˈsɜːv/，动词，储存
翻译：它储存能量的机制。
C)The nutrients it hijacks from other species.
species /ˈspiːʃiːz/，物种
翻译：它从其他物种劫取的营养物质。
D)The green pigment it inherits from its ancestors.
inherit /ɪnˈherɪt/，动词，继承（经遗传获得也是一种继承）
ancestor /ˈænsestə(r)/，祖先
翻译：它从祖先那里继承的绿色色素。
简单小结一下这题的词汇
核心词汇：
hijack
capture
mechanism
conserve
species
inherit
ancestor
其他词汇：
incredible
manage to
gene ；genetic
nutrient
solar
confirm
好了，今天就说到这里吧。
轻松搞定四级传统阅读-2019年12月D篇解析精读（5）
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