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单词 ascertains
释义 as·cer·tain·s 英ˌæsə'teɪn美ˌæsər'teɪn COCA¹³²⁴¹⁶BNC⁸²⁵³⁰⁺¹⁰
基本双解英英辨析搭配近义反义句型用法例句例句
vt.确定⁷⁷;查明¹⁹;探知原型ascertain的三单形容词ascertainable副词ascertainably名词ascertainableness过去分词ascertained现在分词ascertaining三单ascertains
v.动词
vt. 弄清,查明

discover, to make certain


Verb:
establish after a calculation, investigation, experiment, survey, or study;

find the product of two numbers

The physicist who found the elusive particle won the Nobel Prize

be careful or certain to do something; make certain of something;

He verified that the valves were closed

See that the curtains are closed

control the quality of the product

find out, learn, or determine with certainty, usually by making an inquiry or other effort;

I want to see whether she speaks French

See whether it works

find out if he speaks Russian

Check whether the train leaves on time

learn or discover with certainty
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。

discover指发现本来已经存在,后被人认识的事物、真理或情况。

find普通用词,可指偶然发现,也可指经过寻找后得到或重新获得已失去的东西。强调动作的结果。

detect正式用词,强调经过周密观察或研究而有所获得和发现,尤指发现有意隐藏之物。

ascertain较正式用词,指有意搜寻与发现。


用作动词 v.
~+副词ascertain accurately准确地查明ascertain dimly不是很确定ascertain distinctly清楚地查明ascertain instantaneously即刻弄清ascertain unhesitatingly毫不迟疑地确定ascertain vaguely没弄清楚~+介词ascertain from从…查明
近义词 out出up向上see看见find发现learn学会solve解决check检查watch注视answer回答ensure担保insure保险detect发觉clear清楚的control掌控discover发现find out发现appraise评价clear up打扫assure使确信determine决定make certain弄清楚
用作动词v.
用作及物动词
S+~+ n./pron.I'm going to ascertain the truth.我要查明真相。
The detective tried to ascertain the facts about the robbery.侦探试图查明这起抢劫案的真相。
I am going to ascertain the truth of his statement.我将弄清他的话是否真实。
The insurance adjustor had to ascertain the exact value of the missing jewels.这个保险金估算人必须核实这些丢失的珠宝的价值。
The power needs of the ship must be ascertained.这艘船所需的动力必须弄清。
The previously unidentified objects have now been definitely ascertained as being satellites.原来所说的不明飞行物现在已证实是卫星。S+~+that-clauseI ascertained that he was dead.我确定他死了。
He ascertained that the news was true.他确定消息属实。
He had ascertained that his son-in-law was among the living prisoners.他已查明他女婿曾在活着的囚犯之中。S+~+wh-clauseI want to ascertain what time the train arrives, so that I may get to the station in time to meet my friend.我查清火车到达的时间,以便我准时到火车站去接我的朋友。
It is difficult to ascertain what the people really want.问题在于一定要弄清人们究竟需要什么。
Can you ascertain who the owner is?你能查明物主是谁吗?
We could not ascertain how it happened.我们没能弄清它是怎样发生的。
v.动词

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。


动词100%
用作及物动词Iascertainthat he was murdered.我确定他是被谋杀的。
Iascertainedthe disease to be diphtheria.我确定该病为白喉。
The detective was trying toascertainexactly who was at the party.这个侦探试图查明都有谁参加了聚会。
I'm going toascertainthe truth.我要查明真相。
It's difficult toascertainthe coal deposits.煤储量很难探明。
My purpose is toascertainwhether you are interested or not.我的目的是要弄清你是否感兴趣。 In the midst of a personal crisis, junior senator Maggie DavidsonHolly ascertains that she's the subject of a terrorist plot.
年青参议员玛吉戴维森处在个人危机中,她查出自己成了恐怖分子计划中的目标。 mailands

It ascertains the optimum grid granularity and density threshold on the basis of the situation in which dense and sparse grid is generated during the procedure of grid dynamical partitioning.
在网格动态划分过程中,根据密网格和稀疏网格的产生情况,确定最佳网格粒度与密度阈值。 ecice06

It ascertains the size of the construction stress by back analysis of displacement.
通过有限元位移反分析研究确定了露天采场构造应力的大小; cnki

The principle of seeking truth from facts ascertains ways in which the public security units and judicial departments apply laws.
实事求是原则主要确定公安司法机关如何适用法律。 cnki

According to the area and economic characters in developed areas, and combining the traffic speciality of road networks, mis paper ascertains the aim and function of speedway tolling;
本文针对发达地区的区域特征和经济特征,结合路网的交通流特性,确定高速公路的收费目的和职能; dictall

Chapter one ascertains the narration and expression of apparel code, and concludes the specific feature of apparel code.
在第一章我会对当代中国青年服饰符码的陈述与表达进行梳理,并对具体特点给予概括; fabiao

Conclusion Our result demonstrates that MR exist in human peripheral leucocytes and ascertains the best experimental condition, which can be the basis of measuring MR clinically.
结论实验证实人外周血白细胞存在 MR,并确定检测方法的最佳条件,为临床广泛开展 MR检测奠定基础。 cnki

Each of these testing methods ascertains the software product quality in different functional areas.
每种测试方法确定软件产品在不同功能区域的质量。 ibm

In aspect of super- resolution processing, the paper analyses model algorithms and ascertains algorithms our use.
在超分辨率处理的算法方面,分析典型算法并确定了使用的算法; cnki

It is put forward that using practical oil production information ascertains the important parameter namely well pattern index in Xierkaqiaove formula.
本文一方面结合油田实际生产资料确定了谢尔卡乔夫公式中的关键参数,井网指数。 cnki

Once an enterprise ascertains the method of depreciation of the fixed asset, it shall not change it randomly, except that the provisions of Article 19 of these Standards are meet.
固定资产的折旧方法一经确定,不得随意变更。但是,符合本准则第十九条规定的除外。 esnai

Once the government ascertains the age qualification of a certain political role, it certainly will divide the public into two parts: qualified and unqualified.
政府一旦确定了某种政治角色的年龄资格,就势必将公众划分为符合与不符合这一资格的两个部分。 cnki

Secondly, the neural network theory is discussed briefly in this paper. At the same time, the paper analyses the two forward-type networks detailedly and also ascertains their differences.
其次,本文对神经网络理论进行了简要的阐述,并对两种前向型网络进行了详尽的分析,也对这两种网络的差异进行了探讨。 cnki

The paper ascertains signification of enhancing the level of water resources management for reducing the contradiction of water supply and demand.
本文阐述了加强水资源管理和提高管理水平对缓解水资源供需矛盾的意义。 cnki

This algorithm dopes out the mobility of event source and ascertains the best distance for sending monitoring data to decrease network traffic.
该算法对事件源进行运动预测,确定发送监测数据的最佳距离,以降低网络通信量。 kns50.chkd.cnki.net

Through the analysis, this study finds some surface features of the sentence types chosen by the host and the contestants and it also ascertains the formulaic sequences of the host.
本文着重分析和总结了主持人与参赛者使用句型的表面特征,并指出了主持人所使用的程式化语言。 fabiao

Ascertains actual pitch value of six citation tones by methods of experimental phonetics, and explains differences of the tonal pattern.
通过实验语音学的方法确定了华阳话单字调的实际调值,并对其声调格局中存在的分歧做了解释。 dictall
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