例题解析:
9. A) longevity B) aging C) health D) popularity
10. A) big B) long C) ago D) old
Giles’s team set out to examine the relationship between various types of social networks and __9__ in a group of almost 1,500 Australians who were at least 70 years __10__.
9. A。 分析：A（长寿）在前文（... – have different effects on longevity）中出现过， 所以首先关注（提示：考查上下文用词是完型填空题中的常见考点）. 空格所在的局部结构是“examine调查 the relationship between various types of social networks and __9__（调查不同类型的社交群体和…之间的关系）”， 结合文章主题（文章标题内容（朋友可能是长寿的关键））， 文章主题是研究朋友（社交群体）和长寿的关系，因此判断A（长寿）是答案。
提示：当被选项中出现文章主题词时，该选项常常是答案。
10．D．分析：“…years old”是固定搭配结构，含义为“…岁”
词汇：
set out to do sth: 开始做…
examine: v. 检查, 调查, 考试
various: adj. 不同的, 各种各样的(various – different – diverse (B))
between: prep.在...之间
e.g. He arrived between 6 and 7 last night. 他昨晚6点到7点之间到的。
almost: adv. 几乎, 差不多 (almost – nearly 几乎)
at least: adv. 至少
at most: adv. 最多
语法结构：
1,500 Australians who were at least 70 years old (who引导的定语从句)
Who: …的
e.g. The man who you talked to just now is my younger brother.
e.g. The man, who was fired, was said to be caught stealing in the supermarket. 他
be said to do sth. 据说…
be caught stealing 被当场发现偷窃 （catch sb. doing 无意中发现某人正在做….）
11. A) questions B) doubts C) studies D) tests
Volunteers answered __11__ about their social networks and then were followed for 20 years.
11. A。 分析：根据空格所在的局部搭配结构“answered __11__（回答…）”， 判断A（问题）是答案。
词汇：
follow: v. 跟随, 沿...而行, 理解, 遵循, 注视；注意
e.g. The children followed their mother into the room. (go after )
孩子们跟着母亲进了房间。
e.g. He followed the speaker's words closely.他仔细关注演讲者的话。
e.g. I didn't follow his words. ( understand )
e.g. Please follow the instructions on the packet when you take the drug.
吃药时请按照包装上的说明去服用。
e.g. Will you follow my advice? (take )
你会听我的忠告吗？
as follows 如下所示
12. A) including B) taking C) accepting D) offering
The researchers took into account several factors that could have influenced how long a person live, __12__ sex, age, health and smoking status.
12. A。 分析：空格所在的局部结构说“__12__ sex, age, health and smoking status（…性别，年龄，健康状况和吸烟状况）”，因此判断A（包括）是答案。空格所在的结构作定语，修饰句子前面部分所出现的名词factors（因素）：factors ….including sex, age, health and smoking status.
词汇：
Take …into account/ consideration: 把…考虑在内
influence: (affect, have influence on.., have an effect on..)对…有影响
语法结构：
several factors that could have influenced how long a person live （that 引导的定语从句）
that: …的
e.g. The book that you want is missing. (missing: adj. 不见的)
could have influenced how long a person live (how long 引导的宾语从句)
how long: 多久/多长时间
e.g. Can you tell me how long you would stay in Beijing?
比较：
e.g. Can you tell how often you go to see your mother? (how often : 多久一次)
13. A) if B) when C) that D) this
14. A）more B) less C）very D) most
What the study showed was __13__ older people who reported better social networks of friends were __14__ likely to be alive at the end of the study than people with fewer friends.
13．C. 分析：前三个选项都可以用作连词，因此首先关注前三个选项。空格后面的结构是句子（older people…. were __14__ likely to be alive）， 因此空格处需要出现体现从句和主句关系的连词。整个句子的大意是“研究所揭示的是…的老人同有着较少朋友的老人相比较，…可能在研究结束的时候还活着”，因此判断C(that)是答案：that 引导的表语从句。
14．A．分析：根据空格13，14 所在的句子的大意“研究所揭示的是有着更好的社交群体的老人同有着较少朋友的老人相比较，…可能在研究结束的时候还活着”， 判断A（更）是答案。
词汇：
alive: adj. 活的，活着的 (只能充当表语)
e.g. The fish we caught is still alive. 我们捉的鱼还活着。
比较：
A living expert/specialist
at the end of: 在...结尾,在....末端
if: 是否（引导宾语从句）
e.g. My wife wants to know if/whether Mary needs any help.我妻子想知道玛丽是否需要帮忙。
e.g. He wants to know if/ whether you are tired.他想知道你是否累了。
when: 什么时候（引导宾语从句）
e.g. He then asked when he would be allowed to go home.
然后他又问,什么时候可以允许他回家。
语法结构：比较状语从句结构
e.g. He is taller than his brother. 他比他兄弟高。
e.g. Bill Frith's garden is larger than Joe's.彼尔.弗里思的花园比乔的大。
15. A) each B) every C) all D) an
But relationships with children and relatives did not have __15__ effect on survival in the study.
15．D. 分析：“have an effect on…”是固定搭配结构
词汇：
each （each – every 每个的）adj.各自的, 每个的pron.各自, 每个
e.g. He can get up for about two hours each/every day.他每天可以起床活动大约两个小时。
e.g. Each of his children goes to a different school. 他的每个孩子都在不同的学校里读书
every adj.每一的, 每个的, 全部的
every other 每隔…的
e.g. Take this medicine with warm water every other day.
这药每隔一天随温水服一次。
all adj. 全部的, 所有的, 整个的adv. 完全 pron. 全部
e.g. Are all the students here today? 今天所有的学生都到了吗? 全部的
e.g. The road is all covered with snow. 道路全都被大雪覆盖。完全(completely)
at all 完全（不），全然（不）
e.g. I don't like him at all. 我一点儿也不喜欢他。
survival n. 生存, 幸存
l C级核心词汇推荐
apple n. 苹果
Application n. 应用，申请（the application of science to industry/在工业上对科学的应用; applications software/应用软件）；
apply v. 申请, 应用, 敷（apply a theory to practice/把理论应用于实践; ；apply for申请, 请求）
appoint v. 委派，任命, 指定，约定(时间、地点等)
appointment n. 任命, 约定 (have an appointment with sb. 和某人有约会。 keep [break] one's appointment 守[违]约)
appreciate vt. 赏识, 重视（appreciate – treasure珍重）; 感谢, 抬高...的价格（appreciate – increase - enhance抬高...的价格）（appreciate one's kindness./多谢厚意）
approach vt.接近, 动手处理n. 走近, 方法, 步骤（approach – way – method方法）
appropriate adj. 正确的；适当的（be appropriate for ../ 适合）（appropriate – proper –suitable合适的）
approval n. 赞成, 赞许, 批准（approval – agreement赞成）
approve v.批准, 批准, （常与of连用）赞成，赞同（approve of../准许..; approve the plans/批准计划）
April n. 四月（April Fools’ Day/愚人节(四月一日)；
（B）architecture n. 建筑, 建筑学
area n. 范围, 区域（area – zone – field区域）
argue v. 辩论, 争论（argue for [against] a proposal/辩论赞成[反对]某项建议）（argue –debate – discuss辩论；讨论）
argument n.争论, 辩论, 论据, 论点, （～ (for, against)支持..，反对）
arise v. 起来, 升起, 兴起, 出现, 发生, 造成(from) （arise from [out of]/由...而引起）
arm n. 臂, 支架〔pl.〕军械，武器 (the right arm 右臂)
army n. 陆军, 军队, 大群（an army of workers /劳动者大军）
around adv. 环绕, 在周围, 四周, 在附近 prep. 在…的周围, 环绕, 大约, 左右（around 20 people /大约20人; hang around/在附近徘徊）
arouse v. 叫醒, 唤起, 激励（arouse – excite激励）（arouse sb.'s enthusiasm/激起某人的积极性）
arrange v. 排列, 分类, 整理（arrange books on the shelves/把书架上的书整理好）
arrest n. /v.逮捕
arrival n. 到达, 到来
arrive v. 到达, 来到(in, at), 得出(at)（arrive at../获得（结果）；达到（目的）; arrive at a decision 达成决议）（arrive at – reach – get to到达）
art n. 美术, 艺术 (pl.)人文学科
artist n. 艺术家, 美术家
as adv. 同样地, 相同地 prep. 被看作, 像… conj. （用于比较）与…一样, 当,因为（as .. as .. /和..一样..; such as /诸如; as it were/或者说; as you know /正如你知道的; as if(= as though)/ 好像，好似，as long as (= so long as)/只要; as for/to/关于；至于）；
Asia n. 亚洲；
aside adv. 在旁边 , 在一边（stand aside/站在一边; aside from/ 除了...以外）；
ask v.询问, 请求, 索（价）（ask sb. a favor /请某人帮个忙; ask for (=inquire after) 要求, ask sb. to do sth./要求某人做…）；
asleep adj. 〔用作表语〕睡着，睡熟 （fall asleep睡着，入睡）
aspect n. 模样, 面貌, 方面（one aspect of the problem /问题的一个方面）；
assemble v. 集合, 装配(机器等)
