攻克考研英语长难句要有恒心和耐心，一点点的去积累去提升，开学了，接着寒假的复习进度继续不中断，每天看一看练一练，积累词汇的同时提升翻译阅读能力。请看今天的句子和重点词汇。
2017考研英语长难句分析每日一句（42）
To those who are unaware that animal research was needed to produce these treatments, as well as new treatments and vaccines, animal research seems wasteful at best and cruel at worst.
译文：许多人没有意识到这些治疗方法以及新的治疗方法和疫苗都必须进行动物实验。对于他们来说，动物实验说得好是浪费，说得不好就是残忍的。
点睛：本句的主干为animal research seems wasteful at best and cruel at worst。句首的介词结构To those who are unaware those…and vaccines作状语，those后跟有一个定语从句who are unaware...，该定语从句中还含有宾语从句that animal research was needed to produce these treatments,as well as new treatments and vaccines。
考点归纳：注意at best和at worst的用法。
*at best意为“充其量，至多”。
She is at best a second-rate singer.
她充其量是个二流歌手。
Don’t expect much of him; he is at best a student.
不要时他期望过高;他只不过是个学生。
*at( the) worst意为“在最坏的情况下;从坏处想;在最保守的估计下”。
He's a fool at the best and at the worst he's a criminal.
从好处想的话他是个傻瓜，从坏处想则是个罪犯。
At worst,the storm will make us postpone the trip.
最坏的估计是暴风雨会使我们推迟行程。
| 重点单词 | 发音 | 解释 |
| produce | [prə'dju:s] | n. 产品，农作物 |
| postpone | [pə'spəun] | vt. 延期，推迟 |
| unaware | ['ʌnə'wɛə] | adj. 没有发觉的，不知道的 |
| criminal | ['kriminl] | adj. 犯罪的，刑事的，违法的 |