ascertain 核心词议:
vt. 确定;查明;探知
ascertain 基本解释
速记方法
速记技巧
词源词根法
as-同ad-.certain,确定。as-加强意义+-cert-确信+-ain形容词词尾(转化为动词)
ascertain相关的词根或词缀是:
cerncertcret
ascertain确定,查明v.
as 加强 + certain 肯定的 → 一再区别 → 确定
知识扩展
词语辨析
v.(动词)ascertain,determine,discover,learn,unearth
这组词都可表示“发现以前自己不知道的东西”。其区别是discover指经过调查、探索去发现已经存在或可能存在、事实上的东西,这种发现也可能出于偶然;ascertain很少指偶然的发现,侧重先前的无知与无把握,以及认真地去发现真理或真相;determine比ascertain更强调寻找事实或真理,以解决争端或争执,主要用于科学和法律方面;unearth指将隐藏的、被遗忘的、失去的或极其难以追寻的东西公之于众或暴露于世,常常强调发现以前所做的认真长期的调查;learn指获得知识,发现者一般没有或很少花多大力气。例如The surgeon general has determined that cigarette smoking is dangerous to our health.卫生局长已确定吸烟危害健康。The question is to ascertain what the people really want.问题在于一定要弄清人们究竟需要什么。We discovered the powder consisting of harmful ingredients.我们发现这种粉末含有害成分。Projecting ourselves into the future world,we should learn as much as we can now.设想一下处身于未来的世界当中,我们现在就应该尽可能多学一点东西。They have unearthed the secret.他们已经发现了这个秘密。discover,find,detect,ascertain
这些动词均有“发现”之意。
词语用法
ascertain的基本意思是“发现前所未知的事物”。通常指意识到了自己的无知之后通过有意识的努力来弄清真相或找出事实。ascertain是及物动词,接truth,fact等名词或名词从句作宾语,可用于被动结构。
同根单词
vt.确定;查明;探知confirm,identify,assure oneself
ascertain 记忆方法
ascertain相关的词根或词缀是:
cerncertcret
ascertain确定,查明v.
as 加强 + certain 肯定的 → 一再区别 → 确定
中文词源:
ascertain 确认
as-同ad-. certain, 确定。
ascertain
精选例句
1、 It can be difficult to ascertain the facts.
可能难以查明事实真相。
常见考点例句:
- There were favorite colors to ascertain .
- 由最喜欢的颜色来确定。
- In galactic collisions like this the outcome can be difficult to ascertain .
- 像这样的两颗星系若发生碰撞,目前很难确定后果如何。
- You should also ascertain early on what risk measures are used to gauge this performance .
- 你也必须早早确定用何种风险评估系统来衡量投资业绩。
- Scientists have conducted many experiments to ascertain which animals can see in colour - and made some surprising discoveries .
- 科学家已经进行了大量实验来确定哪些动物在色彩方面可视,并且得出了一些令人惊讶的发现。
- Results were initially inconclusive . There were just too many variables to ascertain whether cloud seeding actually weakened a hurricane .
- 实验的初步结果是没有结论;变量太多,难以确定播云是否削弱了飓风。