医学英语语法特征.ppt

医学英语语法特征详解 河北医科大学外语部医学英语教研室 阎伟静 医学英语语法特征之一 难句长句多 1. 医学英语文献中常出现包含有许多附加成分的简单句和有许多从句的复合句； 2. 不可避免出现大量长句、难句。 Pulmonary circulation differs from the systemic circulation in that oxygen-poor blood is carried by the pulmonary arteries from the right ventricle to the alveoli so that gaseous exchange can occur and the pulmonary veins carry oxygen-rich blood back to the left atrium so the heart can pump it throughout the body. e.g. 1 Pulmonary circulation differs from the systemic circulation /in that oxygen-poor blood is carried by the pulmonary arteries from the right ventricle to the alveoli /so that gaseous exchange can occur /and the pulmonary veins carry oxygen-rich blood back to the left atrium /so the heart can pump it throughout the body. e.g. 2 When food is eaten it is broken down by the digestive system and the nutrients are absorbed through the wall of the intestines, which is then picked up by the blood vessels and carried off to the cells requiring the nutrition with a pit stop through the liver for nutrient absorption and toxic cleansing. e.g. 2 When food is eaten /it is broken down by the digestive system /and the nutrients are absorbed through the wall of the intestines, /which is then picked up by the blood vessels and carried off to the cells requiring the nutrition /with a pit stop through the liver for nutrient absorption and toxic cleansing. 方法： 拆---合 分析原文语法结构； 弄清原文逻辑关系； 组合原文表达含义。 医学英语语法特征之二 被动语态多 原因： 医学文献强调客观事实、研究方法、性能和特征； 作者习惯于客观地看问题，并使用非人称（无生命第三人称）的语气作客观的描述。 1 The respiratory system is divided into the upper respiratory tract and the lower respiratory tract. The respiratory system is divided into the upper respiratory tract and the lower respiratory tract. 2 The knee joint is basically designed in one plane about a transverse (side-to-side) axis. The knee joint is basically designed in one plane about a transverse (side-to-side) axis. 3 Before microscopy was applied to medical problems, observatio