今天讲解的内容也不难，大家还是可以先尝试自己对划线部分进行分析，再看解析。

　　原文节选

　　[1]In order to study cells taken from grey whales, a member of the team had to travel to Chukotka, an autonomous area of Russia, where annual whale hunts are regulated by the International Whaling Commission. [2]“It was challenging to get a biopsy," says Toren.[3]“He had to fly there and wait for half a year." (Para. 4)

　　[4]Once the team had liver and kidney tissue from two grey whales, the researchers looked at the genes that were switched on in each sample. [5]They sorted these "expressed" genes intocategories based on their functions, and focused on those that had previously been linked to ageing. [6]These included those that code for proteins that affect how well the body can get rid of faultyproteins and maintain and repair DNA, as well as others involved in the workings of the immune system. (Para. 5)

　　词汇表达

　　1. regulate v. 控制、管理

　　Her mother strictly regulates how much TV she can watch.

　　她妈妈严格控制她看电视的时间。

　　2. kidney tissue 肾脏组织(雅思必掌握词汇)

　　3. sort v. 把……分类(同义替换语料)

　　Paper, plastic and cans are sorted for recycling.

　　纸张、塑胶和罐子分开归类以便回收。

　　语料积累：

　　sort of 有点儿(雅思口语语料)

　　all sorts of 各种

　　4. category n. 种类，类别

　　categorize v. 将……归类

　　The books are categorized into beginner and advanced.

　　这些书分为入门级和高级。

　　5. protein n. 蛋白质

　　长难句解析

　　1. 长句[1]

　　1

　　[A]In order to study cells taken from grey whales, [B]a member of the team [C]had to travel to Chukotka, [D]an autonomous area of Russia, [E]where annual whale hunts are regulated by the International Whaling Commission.

　　句子长但不复杂，按照我们往期讲的找句子主干的方法，就能看出这句话的主干是[B][C]。

　　[A]in order to …目的状语。

　　[D]两个逗号之间的内容如果分不清是同位语还是插入语，那么只要记住，一般可直接无视，对句子的语法不会有任何影响。

　　不管是同位语还是插入语，其作用都是让句子“锦上添花”，意思更为完整。这里作同位语，解释说明Chukotka是什么地方。

　　[E]是定语从句，修饰Russia，此处的where相当于in Russia。

　　2. 长句[6]

　　1

　　[A]These included those [B]that code for proteins [C]that affect how well the body can get rid of faulty proteins and maintain and repair DNA, [D]as well as others involved in the workings of the immune system.

　　本句难点在于使用代词+从句套用，只用重点看[A][B][C]。

　　先要分清楚[A]中的those指代的是those genes，[B]是that引导的定从，修饰those (genes)，[C]也是that引导的定从，但修饰的是proteins，说明是什么样的蛋白质。

　　行文简析

　　Para. 4-5科学家为解灰鲸长寿之谜对其进行研究。

　　今天两个长句的分析和我们往期讲过的分析方法密切相关，建议不记得的同学回看往期外刊精读，温故而知新~