17．relation n. 亲戚；亲属

　　18．evolution n. 进化；演变

　　19．precious adj. 宝贵的；珍贵的；贵重的

　　20．length n. 长度

　　21．enlarge v. (使)增大；(使)扩大

　　22．discrimination n. 歧视

　　23．advocate v. 主张，拥护

　　24．status n. 法律地位；身份

　　25．compromise n. 折中；妥协

　　26．subjective adj. 主观的

　　27．thorough adj. 彻底的；全面的；详尽的

　　28．guidance n. 指导，引导，咨询

　　 [用所给词的适当形式填空]

　　1．They have contributed a lot of food and clothing to the refugees and their contributions will certainly help them live through the winter. (contribute)

　　2．As an assistant，she always assists the manager in dealing with problems. So the manager thinks highly of her assistance．(assistance)

　　3．Thanks to the investment of the company，the local economy has developed rapidly. As a result，more and more investors come to invest here.(invest)

　　4．Toby is absent from my class again; his constant absence has caught my attention.(absent)

　　1．of__vital__importance 至关重要

　　2．apart__from 除......之外

　　3．go__through 获准，经过程序

　　4．remind__sb.of__sth. 使某人想起......

5．at__the__mercy__of... 受......支配