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1.“no more…than…”=“not…any more than…”
Antibiotics need not be placed in pleural space,forthey are no more effective given in this way than whengiven by usual routes.该结构中than后面虽然用肯定结构,但实际上表达否定含义,表示同后面内容一样不……。可译为“胸腔内不需放置抗菌素,因为这样用药并不比通常的途径给药更为有效。”(即:……因为这样用药是无效的,正如同此病按通常的途径给药无效一样。)He is no more a surgeon than you are.他跟你一样都不是外科医生。

2.“no less…than…”　
该结构与上述结构正相反,对than前后内容表示肯定,意为“同……一样……”。例如:Action is no less necessary to us than thought.对我们来说,行为和思想是同样必要的。

3.“not so much…as…”　
该结构与“less…than…”同义,一般译为“与其说……不如说……”,“不是……而是……”。例如:https://www.51lunwen.org/yyyxlw/ The relative ease with which dyspnea overtakes thenormal person unaccustomed to exertion depends not somuch on the condition of his heart and lungs as on the a-bility of the peripheral circulatory apparatus to supply by-vasodilatation increased flow of blood to the muscles inuse and by vasoconstriction to reduce blood flow to inac-tive parts, and on the capacity of his skeletal musculatureto transform enegy at the required rate.不习惯于大量活动的正常人比较容易地产生呼吸困难,其原因与其说是取决于他的心脏和肺的情况,不如说是取决于他的周围循环器通过血管扩张对运动的肌肉供应较多的血流的能力,取决于通过血管收缩减少对不活动部位供应较少血流的能力,以及取决于其骨骼肌根据需要的速度转换能量的能力。The idea nowadays is not so much to give peopletreatmentwhen they are ill as to preventtheirgetting ill inthe first place.如今的想法不单是人们患了病时给他们治疗,而是从根本上预防人们得病。

4.“cannot…too…”
意为“怎么……都不过分”,“越……越……”。例如:I cannot recommend this article too strongly.无论我怎样竭力推荐这篇论文也不嫌过分。

5.“否定+without”　
否定+否定=肯定,使语气更为强烈,翻译时通常保留双重否定。有时也可以直接译为肯定式。例如:He can’t speak English without making mistakes.他每说英语必出错。They never meetwithout quarreling.他们一见面就吵架。

6.“not that…,but that…”　
该结构中that相当于because。例如:I felt a bit worried, not that he was ill, but that hedid not pay enough attention to his illness.我担心的,不是因为他生了病,而是因为他对病不够重视。Not that the machine is out of order, but that I havenot learned to operate it.不是机器出了故障,而是我还没有学会操作。

7.否定+all(both,every,always,altogether)　
在该句型中要特别注意否定的范围。例如:It is evident, therefore, that not all of these bacteriaproduce disease and some of them are harmless or evendistinctly beneficial to the body and are called non-pathogenic.因此,显然不是所有的细菌都引起疾病,有些是无害的,或者甚至对人体是显然有益的,这些细菌叫非致病菌。Saturated bile has the potential for gallstone forma-tion,but does not always result in gallstone formation.饱和的胆汁有形成胆结石的可能,但不一定导致胆结石。

8.一些具有否定意义或通常翻译成否定句子的词汇或结构

It is clear that persistent shallow breathing andab-senceof sighing and coughing can severely impair normalrespiratory function.持续的浅表呼吸和不叹息,不咳嗽,显然可以严重地影响正常的呼吸功能。It isbeyonddispute that he is correct in his conclu-sion.他的结论的正确性是用不着争论的。His illness ispastcure.他得了不治之症。Imissedthe first part of the speech•我没听到报告的第一部分。Measurements of adrenal cortical function in shockhave consistentlyfailed toshow impaired function.休克时肾上腺皮质功能的测定一直未能证实有什么功能减退的情况。The origins of this complication are stillfar fromclear.这种并发症的发病原因尚不清楚。This isabovemy comprehension.这是我难以理解的。Since these receptors are bathed with cerebrospinalfluidinstead ofblood,an increase in the CO2tension ofarterial blood causes a delayed but powerful response in本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。