17. According to my own experience, one’s success is extraneous to his educational level.

根据我的个人经验，一个人的成功往往与他的受教育水平毫不相关。

核心结构：A be extraneous to BA与B毫不相关

18. Not pessimistically, violent crimes cannot be exterminated in urban areas as long as social gaps are not bridged.

不悲观的来说，只要社会差距不被弥合，城市地区的暴力犯罪就不会被根除。

核心结构：

1. pessimistically 悲观地(副词)

2. exterminate根除

注：根除的表达方式eradicate/ root out/ exterminate

19. Extramural activities, if well-organized, are decisive for students’ successful socialization.

假如组织得当，校外活动对于孩子的社会化进程将起到关键作用。

核心结构：extramural activity 校外活动

20. When feeling scandalized by domestic violence, I feel necessary to probe into the root causes to this phenomenon.

在对家庭暴力感到极度反感的共识，我感觉有必要深入分析一下这种现象的根本原因。

核心结构：

1. A feel scandalized by B A对B感到极度反感

2. A probe into B A深入分析B

21. The measure of educating highly-intelligent children separately may suffocate average students’ aspiration for their successful life.

单独教育高智商儿童的方式可能会扼杀普通学生对于成功生活的渴望。

核心结构：A suffocate BA使B窒息、A扼杀B

22. Looking into the recent cases of campus massacres, we can find that the attacks were always premeditated.

深入研究最近的校园流血事件，我们可以发现最近的一系列袭击都是有预谋的。

核心结构：premeditate预谋(动词)

23. Being mentally immature and sociably inexperienced, many of youngsters are easy to be deceived by subterfuges.

由于心理上的不成熟和社会经验的缺乏，一些年轻人很容易被假话欺骗。

核心结构：

1. mentally immature 心理上不成熟的

2. A be deceived by BA被B蒙骗

3. subterfuge 假话、借口

24. In the vicinity of urban areas, the public facilities like medical and teaching organizations are still short of well-trained professionals.

在城市周边地区，医院及教学机构等公众设施仍然缺乏训练有素的专业人才。

核心结构：

1. A be in the vicinity of BA在B的周边

2. A be short of B A缺少B

25. The vicissitudes of communication ways are gradually making the aged marginalized and generation gaps widened.

交流方式的变迁正在使得老年人边缘化、代沟加深。

核心结构：

1. vicissitude 变迁

2. marginalized 被边缘化的

注：落日余晖下(in the afterglow)，我们总会看到一些老人百无聊赖的(in ennui)坐在小区的某个阴凉处( shady places)、茫然的(blindly)注视着过往的行人(passers-by)。他们不主动与行人交流、也不奢望行人停下来与他们交流，因为主流社会与“被边缘化社会”之间几乎没有交集。

26. Many of youngsters are proud of telling ribald jokes and regard it as a sign of maturity.

一些年轻人以讲下流笑话为骄傲，因为他们认为这是一种成熟的象征。

核心结构：ribald joke 下流笑话

注：这些孩子也许是受到了他们父辈或父辈朋友的影响。社交酒局还是少带孩子去为好。社会虽然并不干净，但还是得让孩子心灵纯洁一阵儿。

27. The results of campus poll will be skewed since the voters are always well skimmed off and those average ones are excluded on purpose.

校园选举的结果总是不公正的，因为投票者总是经过精挑细选的。那些普通学生总是被故意排斥在外。

核心结构：

1. campus poll 校园选举

2. skew 歪斜的

3. skim off 优中选优

4. on purpose 故意(副词结构)

28. It is inhuman to tame wild animals and cage them in zoos permanently.

驯服野生动物并将他们永久关在动物园力的做法是不人道的。

核心结构：

1. It is inhuman to (do)做……是不人道的

2. tame 驯服

3. cage 笼子(名词)、关住(动词)

4. permanently 永久性的、终身性的

29. Although in the habit of being obsequious, pets may attack their owners all of a sudden.

核心结构：

虽然习惯于献媚，但宠物有可能突然袭击他们的主人。

1. A be in the habit of doing A有做……的习惯

2. obsequious 献媚的

3. all of a sudden 忽然地(副词结构、通常置于句尾)