Section39.PDF

Section 39 Section Preview ① Core Vocabulary Word Definition expedient ❐ providing an easy and quick way to solve a problem or do something adj. v. 应急有效的 reminiscent ❐ reminding you of someone or something else : similar to something else adj. 提醒的 ❐ thinking about the past : having many thoughts of the past adj. 怀 旧的 indispensable ❐ extremely important and necessary  adj. 必不可少的 inimical ❐ likely to cause damage or have a bad effect adj.有害的 ，对……有敌 意的 jejune ❐ not interesting  adj.枯燥无味的 didactic ❐ designed or intended to teach people something adj. 说教的 dogmatic ❐expressing personal opinions or beliefs as if they are certainly correct and cannot be doubted adj. 武断的 tendentious ❐ strongly favoring a particular point of view in a way that may cause argument : expressing a strong opinion  adj. 有倾向性的 arcane ❐ secret or mysterious : known or understood by only a few people adj. 晦涩难解的 vapid ❐ not lively or interesting : dull or boring  adj. 无趣味的 contention ❐something (such as a belief, opinion, or idea) that is argued or stated n.争论 ❐anger and disagreement  n.争执 biotechnology ❐the use of living cells, bacteria, etc., to make useful products (such as crops that insects are less likely to destroy or new kinds of medicine) n. 生物技术 retroactively ❐ 变retroactive ：effective from a particular date in the past adj.追溯的